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Electrical Engineering

The following are Electrical Engineering technologies offered for sale or license. Viewing technologies for sale is a free service of IdeaConnection.com, as is connecting with the seller if a technology interests you. Click on a heading below for more information.

Electrical engineering, also referred to as electronic engineering, is a field that involves electronics, electricity, and electromagnetism. Electrical engineering generally refers to working with large-scale electrical systems that transmit energy, whereas electronic engineering focuses on small-scale electronics such as computers and integrated circuits. Post your electrical engineering technologies for sale or license here.



DROPLET ACTUATORS, SYSTEMS AND METHODS

A droplet actuator with arrays of electrodes electrically coupled to a number of controllable voltage sources that is less than the number of electrodes. A method of defining partitions for pin layout..

Method for electrochemical treatment of electrode for electrochemical measurements, involves heating electrode, and applying negative or positive potential to electrode

The method involves heating an electrode (1), and applying a negative or a positive potential to the electrode. A potential of less than minus 1 volt or more than 1.5 volt, particularly less than minu..

METAMATERIALS FOR SURFACES AND WAVEGUIDES

Complementary metamaterial elements provide an effective permittivity and/or permeability for surface structures and/or waveguide structures. The complementary metamaterial resonant elements may inclu..

Methodology and apparatus for reduction of soft errors in logic circuits

The present invention includes a circuit-level system and method for preventing the propagation of soft errors in logic cells. A radiation jammer circuit in accordance with the present invention, incl..

Method of controlled delivery for use of electrochemical power source

A system and method for improving electrochemical power sources through the dispensing encapsulation and dispersion into galvanic chambers of an electrochemical cell. Features of the method include th..

Electrochemical power source using halogenated organic compounds

Halogenated organic compounds that are inexpensive and are readily available have been used to present the examples of the invention. These chemicals, when in contact with water experience a reaction ..

PLASMA-DEPOSITED ELECTRICALLY INSULATING, DIFFUSION-RESISTANT AND ELASTIC LAYER SYSTEM

A multilayer system on a substrate, the multilayer system being applied to the substrate by plasma deposition, characterized in that the multilayer system is configured such that it has substantial di..

DEVICE AND METHOD FOR STIMULATING NERVES BY WAY OF MAGNETIC FIELD PULSES

The invention relates to a device for generating brief, strong current pulses in a coil, wherein the coil generates magnetic field pulses with a duration of 20 to 3000 microseconds and a strength of 0..

PLASMONIC ELECTRICITY

The present invention relates to detection systems and methods that detect fluorescence, luminescence, chemiluminescence or phosphorescence signatures in the form of an electrical signal conducted and..

GENERATING ELECTRICAL POWER BY COUPLING AEROBIC MICROBIAL PHOTOSYNTHESIS TO AN ELECTRON-HARVESTING SYSTEM

The present invention relates to an aerobic single-chamber photosynthetic microbial fuel cell (PMFC) that does not depend on organic substrate as an energy source but instead powered only by the energ..

THIN FLEXIBLE RECHARGEABLE ELECTROCHEMICAL ENERGY CELL AND METHOD OF FABRICATION

A thin, rechargeable, flexible electrochemical energy cell includes a battery cell, or a capacitor cell, or a battery/capacitor hybrid cell that can be stackable in any number and order. The cell can ..

Polymer Solid Electrolyte for Flexible Batteries

A flexible polymer solid electrolyte material useful in battery technology is described. The flexible solid electrolyte comprises a first block that has the ability to solvate alkali metal salts. The ..

NANODEVICE ARRAYS FOR ELECTRICAL ENERGY STORAGE, CAPTURE AND MANAGEMENT AND METHOD FOR THEIR FORMATION

An apparatus, system, and method are provided for a vertical two-terminal nanotube device configured to capture and generate energy, to store electrical energy, and to integrate these functions with p..

VIBRATING SUBSTRATE FOR HAPTIC INTERFACE

A haptic device is provided having a substrate with a touch surface and one or more actuators for vibrating the substrate in a multiplicity of higher resonant modes, each of which has a high enough fr..

ELECTRODE MATERIAL COMPRISING GRAPHENE-COMPOSITE MATERIALS IN A GRAPHITE NETWORK

A durable electrode material suitable for use in Li ion batteries is provided. The material is comprised of a continuous network of graphite regions integrated with, and in good electrical contact wit..

MICROELECTROMECHANICAL DEVICE AND SYSTEM

A microelectromechanical device for electromechanical testing a specimen having a nano-scale dimension is formed on a multi- layered semiconductor substrate (chip) and includes an electrothermal or el..

ELECTRON INJECTION-CONTROLLED MICROCAVITY PLASMA DEVICE AND ARRAYS

An embodiment of the invention is a microcavity plasma device that can be controlled by a low voltage electron emitter. The microcavity plasma device includes driving electrodes disposed proximate to ..

METHOD OF DISPERSION CONTROLLED X-RAY AMPLIFICATION IN LASER SYSTEM

A method for controlling amplification of coherent tunable radiation in the x-ray region of the electromagnetic spectrum through dispersion control has a step of generating pulsed laser radiation havi..

MICROCHANNEL LASER HAVING MICROPLASMA GAIN MEDIA

The invention provides microchannel lasers having a microplasma gain medium. Lasers of the invention can be formed in semiconductor materials, and can also be formed in polymer materials. In a microla..

INTERWOVEN WIRE MESH MICROCAVITY PLASMA ARRAYS

Embodiments of the invention provide for large arrays of microcavity plasma devices that can be made inexpensively, and can produce large area but thin displays or lighting sources Interwoven metal wi..

ELECTRICALLY SMALL ANTENNA DEVICES, SYSTEMS, APPARATUS, AND METHODS

The utilization of small antennas for mobile devices and for low frequency (long wavelength) applications is desired. Further, efficient use of transmission power is desirable, especially in mobile ap..

MICROCAVITY AND MICROCHANNEL PLASMA DEVICE ARRAYS IN A SINGLE, UNITARY SHEET

An array of microcavity plasma devices is formed in a unitary sheet of oxide with embedded microcavities or microchannels and embedded metal driving electrodes isolated by oxide from the microcavities..

Tunable Radio-Frequency Coil

A radio frequency (RF) coil comprising a plurality of electrically uninterrupted conductive legs, each leg having a first end and a second end, and at least one continuous conductor electrically conne..

ELLIPSOIDAL MICROCAVITY PLASMA DEVICES AND POWDER BLASTING FORMATION

Microcavity plasma devices and arrays are formed in layers that also seal the plasma medium, i e, gas(es) and/or vapors A microcavity plasma device includes first and second thin layers that are joine..

DISPLACEMENT ACTUATION AND SENSING FOR AN ELECTROSTATIC DRIVE

An electrostatic drive includes a first electrode and a second electrode responsive to a drive signal. The drive signal includes an actuation signal constituent and a sensing signal constituent. The s..

Positioning device for e.g. material sample, has drive element for producing negative or positive translational output movement aligned parallel to longitudinal axis of supporting element, and object

The device has a rod-shaped, straight-lined supporting element (4) with a section that comprises a flexible material. A rod-shaped, straight-lined formed drive element (3) carries-out a bending moment..

MICROCAVITY PLASMA DEVICES WITH NON-UNIFORM CROSS-SECTION MICROCAVITIES

An embodiment of the invention is an array of microcavity plasma devices having microcavities of non-uniform cross-section. The array includes a first electrode that is a thin metal foil or film inclu..

VARIABLE ELECTRIC FIELD STRENGTH METAL AND METAL OXIDE MICROPLASMA LAMPS AND FABRICATION

Preferred embodiments of the invention provide microcavity plasma lamps having a plurality of metal and metal oxide layers defining a plurality of arrays of microcavities and encapsulated thin metal e..

Ions accelerating method for e.g. ion beam- and tumor therapy, involves accelerating ions penetrating titanium foils, at high energy, and decelerating ions that are not penetrating titanium foils, at

The method involves time-correlated high intensive laser impulse irradiation of thin titanium foils (2) and electrical fields between the titanium foils and behind electrons (5) separated from the tit..

RF COIL FOR MRI WHICH CAN BE SWITCHED BETWEEN DIFFERENT OPERATIONAL MODES

An RF coil system for magnetic resonance applications includes a multi-channel RF coil transceiver and a multi-channel RF coil. The RF coil system is structured for reconfiguration between a plurality..

MAGNETIC RESONANCE CONTRAST USING FICTITIOUS FIELD RELAXATION

A system includes a signal generator and a processor. The signal generator is configured to couple with a magnetic resonance transmitter coil. The processor is configured to execute instructions to co..

HIGH MAGNETIC MOMENT PARTICLE DETECTION

A device includes a sensor surface and a pair of electrodes. The sensor surface includes a first conductive layer separated from a second conductive layer by an intermediary layer, a magnetization dir..

Method for Magnetic Resonance Imaging

A method of magnetic resonance imaging based on rapid acquisition by sequential excitation and refocusing is provided. The method comprises turning on a first time-encoding gradient and applying an ex..

FREQUENCY SWEPT EXCITATION FOR MAGNETIC RESONANCE

A method of magnetic resonance is provided that uses a frequency swept excitation wherein the acquired signal is a time domain signal is provided. In one embodiment, the method comprises, applying a s..

ELECTROMAGNETIC WAVE DETECTION METHODS AND APPARATUS

Methods and apparatus for detecting an electromagnetic wave are provided. A device for use in an electromagnetic wave detector includes a first device layer having a first contact, a second device lay..

METHODS AND APPARATUS USING HIERARCHICAL PRIORITY AND CONTROL ALGORITHMS FOR GRID-INTEGRATED VEHICLES

A method and apparatus for managing system energy flow. The apparatus includes an energy storage unit to store energy to be used by a system and a power conversion unit configured to be coupled betwee..

POWER CONVERTER AND POWER COMBINER FOR POWER-LIMITED POWER SOURCES

This invention relates to a hysteretic input-regulating high-output impedance power converter for converting the energy output of power-limited power sources such as solar cells to provide output curr..

TERAHERTZ EMITTER WITH HIGH POWER AND TEMPERATURE OPERATION

Terahertz emitting devices are disclosed. The terahertz emitting device comprises a wafer and a current source. The wafer includes silicon carbide and a dopant. In particular, the wafer may consist of..

NON-AQUEOUS ELECTROLYTE SOLUTION FOR RECHARGEABLE LITHIUM BATTERIES

Techniques, systems and materials are described for a rechargeable battery. For example, a battery material can include one or more ionic electrolyte salts. The battery material can also include a non..

THRESHOLD LOGIC ELEMENT HAVING LOW LEAKAGE POWER AND HIGH PERFORMANCE

Embodiments of a threshold logic element are provided. Preferably, embodiments of the threshold logic element discussed herein have low leakage power and high performance characteristics. In the prefe..

COUNTER-FLOW MEMBRANELESS FUEL CELL

A method for generating electrical current using a fuel cell includes flowing a first flow that includes a fuel and an electrolyte through a first channel. The fuel is oxidized at an anode to generate..

ELECTRICAL DEVICES INCLUDING DENDRITIC METAL ELECTRODES

The present invention relates generally to electrical devices. The present invention relates more particularly to electrical devices including dendritic metal electrodes. One aspect of the present inv..

METHOD OF PREPARING A FLEXIBLE SUBSTRATE ASSEMBLY AND FLEXIBLE SUBSTRATE ASSEMBLY THEREFROM

Some embodiments teach a method of preparing a flexible substrate assembly. The method can include: (a) providing a carrier substrate; (b) providing a cross-linking adhesive; (c) providing a plastic s..

ELECTRODE FOR A CHARGE STORAGE DEVICE AND METHOD OF MANUFACTURE

An electrode for a charge storage device and a method for forming the electrode. The electrode comprises an electrode body having an essentially continuous phase of an active material, an essentially ..

METHOD AND APPARATUS FOR MAKING ELECTRICAL CONNECTIONS

A device for making electrical connections is provided, along with a method of use. Other embodiments are also described herein.

FLEXIBLE IDENTIFICATION SYSTEMS AND RELATED METHODS

Embodiments of flexible identification systems are described herein. Other embodiments and related methods are also disclosed herein.

Electric Current-Producing Device Having Sulfone-Based Electrolyte

Electrolytic solvents and applications of such solvents including electric current-producing devices. For example, a solvent can include a sulfone compound of R1-SO2-R2, with R1 being an alkyl group a..

INTEGRATED OPTOELECTROCHEMICAL SENSOR FOR NITROGEN OXIDES IN GASEOUS SAMPLES

A gas-phase detection system based on detecting optochemical and optoelectrochemical signals. The sensing platform is particularly powerful for detection of nitrogen oxides at low ppbV concentrations...

METAL-AIR LOW TEMPERATURE IONIC LIQUID CELL

The present application relates to an electrochemical metal-air cell in which a low temperature ionic liquid is used.

POROUS METAL CATALYSTS FOR OXYGEN REDUCTION

A porous metal that comprises platinum and has a specific surface area that is greater than 5 m2/g and less than 75 m2/g. A fuel cell includes a first electrode, a second electrode spaced apart from t..

PIEZOELECTRIC POLYMER FIBERS

Piezoelectric fibers include a polypeptide wherein molecules of the polypeptide have electric dipole moments that are aligned such that the piezoelectric fiber provides a piezoelectric effect at an op..

Thin-layer thermocouple arrangement useful in thermo-generator to generate electrical energy from thermal energy, comprises thermocouple arranged on base layer with connection point and measuring poin

The thin-layer thermocouple arrangement useful in a thermo-generator for generating electrical energy from thermal energy, comprises a thermocouple arranged on a base layer (1) with a connection point..

Multi-Input Multi-Output Time Encoding And Decoding Machines

Methods and systems for encoding and decoding signals using a Multi-input Multi-output Time Encoding Machine (TEM) and Time Decoding Machine are disclosed herein.

ELECTROMECHANICAL DEVICES AND METHODS FOR FABRICATION OF THE SAME

A fabricated electromechanical device is disclosed herein. An exemplary device includes, a substrate, at least one layer of a high-transconductance material separated from the substrate by a dielectri..

REAL-TIME TIME ENCODING AND DECODING MACHINES

Methods for decoding a signal encoded by a Time Encoding Machine (TEM) include defining a plurality of time-windows, each time-window corresponding to a portion of a TEM-encoded signal and made up of ..

Self-Diagnosing Transducers and Systems and Methods Therefor

A transducer system that includes a piezoelectric transducer and a self-diagnosis system electrically connected to the transducer. In one embodiment, the self-diagnosis system is configured to detect ..

PROCEDURES FOR DEVELOPMENT OF SPECIFIC CAPACITANCE IN CARBON STRUCTURES

The present disclosure describes a carbon electrode having a high specific capacitance and method for forming an electrode. The electrode includes a graphitic carbon material having porous nanographen..

Method for parameterized model order reduction of integrated circuit interconnects

The present invention is a method and apparatus for creating a reduced-order IC interconnect model, which incorporates variations in interconnect process parameters, and models both on-chip and off-ch..

SODIUM ION BASED AQUEOUS ELECTROLYTE ELECTROCHEMICAL SECONDARY ENERGY STORAGE DEVICE

A secondary hybrid aqueous energy storage device includes an anode electrode, a cathode electrode which is capable of reversibly intercalating sodium cations, a separator, and a sodium cation containi..

ELECTROMAGNETIC EMISSIONS STIMULATION AND DETECTION SYSTEM

A system and method for detecting and identifying electronic devices based on their unintended electromagnetic emissions ("UEE") signals is presented. During device classification, UEE signals are mea..

MICROWAVE AND MILLIMETER WAVE RESONANT SENSOR HAVING PERPENDICULAR FEED, AND IMAGING SYSTEM

A switched-slot sensor for use in a sensor array for microwave and/or millimeter wave imaging. The locations of a plurality of sensors in the array define a spatial domain away from an object for dete..

CIRCUIT AND METHOD TO SUPPRESS THE PARASITIC RESONANCE FROM A DC/DC CONVERTER

A snubber circuit for use with a DC/DC converter broadly comprises a snubber resistor connected in parallel with a snubber inductor. The DC/DC converter may include a voltage source, a first switching..

HIGH FREQUENCY ANALYSIS OF A DEVICE UNDER TEST

Analyzing a device under test ("DUT") at higher frequencies. A phase shifter varies the phase of a standing wave on a transmission line coupled to the DUT. The standing wave magnitude is sampled at ea..

CONVECTION BATTERY CONFIGURATION FOR CONNECTIVE CARBON MATRIX ELECTRODE

Electrode compositions and devices (100) that incorporate the electrode compositions are provided. More specifically, electrode compositions that include carbon that provide a connective network to wh..

MICROWAVE AND MILLIMETER WAVE IMAGING

A sensor array having a plurality of modulated slots for microwave and/or millimeter wave imaging. The locations of the slots in the array define a spatial domain away from an object for detecting an ..

SENSOR ELECTRODE AND METHOD FOR THE ELECTROCHEMICAL DETECTION OF NUCLEOTIDES

A sensor electrode for the detection of nucleotides in a biological sample is described. The sensitivity of the electrode is enhanced by the nanostructured sensor architecture that increases the avail..

ION DEFLECTOR FOR TWO-DIMENSIONAL CONTROL OF ION BEAM CROSS SECTIONAL SPREAD

An ion deflector, for deflecting a beam of charged particles along an arc in a deflection plane, includes a pair of non-spherical deflection electrodes adapted for being charged with different voltage..

Methods for fabricating nanoscale electrodes and uses thereof

The present invention relates to methods for fabricating nanoscale electrodes separated by a nanogap, wherein the gap size may be controlled with high precision using a self-aligning aluminum oxide ma..

Systems and Methods for Non-Periodic Pulse Sequential Lateral Solidification

The disclosed systems and method for non-periodic pulse sequential lateral solidification relate to processing a thin film. The method for processing a thin film, while advancing a thin film in a sele..

Lightweight wood-based board and process for producing it

The invention relates to a process for producing a sandwich board, comprising the following steps: providing an upper covering layer, providing a lower covering layer, providing an intermediate layer ..

REACTANT DELIVERY TO A REACTIVE SURFACE IN A CHANNEL

The present invention provides geometric arrangements for channels through which liquids or other fluids can be made to flow, for enhanced performance of fuel cells or other chemical or biochemical re..

Detection Circuit for Use in Various Types of Capacitive Transducers and a Transducer Including Such a Circuit

A detection circuit for detecting changes in capacitance. The detection circuit includes a tuned ratio circuit and an alternating current (AC) source AC-coupled to the tuned ratio circuit. The tuned r..

Piezoelectric Vibrational Energy Harvesting Systems Incorporating Parametric Bending Mode Energy Harvesting

Vibrational energy harvesting (VEH) structures that include resonant beams each having a fundamental resonance frequency and a parametric mode frequency and including at least one piezoelectric layer ..

Zero-Order Energy Smart Antenna and Repeater

The invention is a new device that will improve the radio link quality for low power wireless devices. An example application is for low power, miniaturized wireless sensor nodes that are statically d..

Complex half-band finite impulse response filter and method of making same

An electrical signal filter for processing a discrete-time real signal having a length N. In one embodiment, the filter comprising a delay line having N taps and a corresponding respective N filter co..

METHOD OF FORMING GATED, SELF-ALIGNED MICRO-STRUCTURES AND NANO-STRUCTURES

Methods of forming a gated, self-aligned nano-structures for electron extraction are disclosed. One method of forming the nano-structure comprises irradiating a first surface of a thermally conductive..

COMPOSITION FOR ENERGY GENERATOR, STORAGE, AND STRAIN SENSOR AND METHODS OF USE THEREOF

Compositions and devices for harvesting electrical energy from mechanical and thermal energy, storing such produced energy, and sensing strain based on low cost materials and processes. In embodiments..

Ultra Low Loss Waveguide for Broadband Terahertz Radiation

An apparatus comprising a parallel plate waveguide (PPWG) comprising two plates separated by a distance that supports a multimode wave, and a transmitter configured to emit a wave having a frequency f..

Resonant Cavity Integrated into a Waveguide for Terahertz Sensing

A method comprising polarizing and coupling an electromagnetic beam to a first-order transverse electric (TE1) mode with respect to a parallel plate waveguide (PPWG) integrated resonator comprising tw..

DUAL-RING SILICON ELECTRO-OPTIC MODULATOR

A device, system, and method for the electro-optic modulation of light. The device includes a substrate having a first ring waveguide and a second ring waveguide on the surface. The device includes a ..

HIGH-VOLTAGE IMPULSE AMPLIFIER

A circuit includes a first transistor in a common-collector configuration and a heterojunction bipolar transistor (HBT) in a common-emitter configuration. The first transistor has a base coupled to an..

GALLIUM NITRIDE-BASED DEVICE AND METHOD

A gallium nitride-based device has a first GaN layer and a type II quantum well active region over the GaN layer. The type II quantum well active region comprises at least one InGaN layer and at least..

ABBREVIATED EPITAXIAL GROWTH MODE (AGM) METHOD FOR REDUCING COST AND IMPROVING QUALITY OF LEDs AND LASERS

The use of an abbreviated GaN growth mode on nano-patterned AGOG sapphire substrates, which utilizes a process of using 15 nm low temperature GaN buffer and bypassing etch-back and recovery processes ..

NITRIDE BASED QUANTUM WELL LIGHT-EMITTING DEVICES HAVING IMPROVED CURRENT INJECTION EFFICIENCY

A III-nitride based device provides improved current injection efficiency by reducing thermionic carrier escape at high current density. The device includes a quantum well active layer and a pair of m..

SURFACE PLASMON DISPERSION ENGINEERING VIA DOUBLE-METALLIC AU/AG LAYERS FOR NITRIDE LIGHT-EMITTING DIODES

A double-metallic deposition process is used whereby adjacent layers of different metals are deposited on a substrate. The surface plasmon frequency of a base layer of a first metal is tuned by the su..

CONDUCTIVE DOPED METAL-GLASS COMPOSITIONS AND METHODS

Provided herein are conductive glass-metal compositions, as well as methods of making and using such compositions. In one example, the compositions include gold (Au) doped lithium-borate glasses shown..

VAPORIZATION DEVICE AND METHOD FOR IMAGING MASS SPECTROMETRY

Methods and apparatus for analyzing samples are disclosed. The samples are analyzed by vaporizing molecules from a sample in a sample area with a femtosecond laser beam under ambient conditions, ioniz..

Multiple Antenna Energy Harvesting

Energy harvesting circuits and associated methods are provided that employ multiple antennas to optimize the amount of energy that is harvested while at the same time making efficient use of tag space..

RECHARGING METHOD AND APPARATUS

The present invention provides apparatus and an associated method for remotely energizing power storage devices. Energization may preferably be effected through the use of RF energy from a base statio..

Method for Producing A Magnetic Resonance Image of an Object Having a Short T2 Relaxation Time

A method for producing a magnetic resonance image using an ultra-short echo time. The method includes applying a pulse sequence to an object, detecting a spirally encoded and phase encoded magnetic re..

HAND-HELD ELECTRICAL STIMULATION DEVICE

Apparatuses and methods for the safe and efficient electrical stimulation of tissue. The apparatuses of the present invention are preferably hand-held and are capable of providing electrical waveforms..

Wireless Energy Transfer System

A wireless energy transfer system includes a first energy transfer unit having at least one resonant frequency, a second energy transfer unit having the at least one resonant frequency, and a load. Th..

WIDE BANDWIDTH SLANTED-FINGER CONTOUR-MODE PIEZOELECTRIC DEVICES

Contour-mode piezoelectric devices and methods of forming contour mode piezoelectric devices. The contour mode piezoelectric device includes a piezoelectric film having first and second surfaces and s..

CLOAKED SENSOR

A cloaked sensing system renders a sensor essentially undetectable in a predetermined spectrum without degrading the detection capability of the sensor in the predetermined spectrum. A shield placed a..

FERROELECTRIC THIN FILMS

Ferroelectric structures and methods of making the structures are presented. The ferroelectric structures can include an electrode in contact with a ferroelectric thin film. The contact can be arrange..

OPTOELECTRONIC DEVICES EMPLOYING PLASMON INDUCED CURRENTS

An electro-optical device includes a substrate on which first and second electrodes are formed. A plurality of nanoparticles are arrayed on the surface of the substrate between the first and second el..

Multiple-Electrode and Metal-Coated Probes

Provided are probes featuring multiple electrodes, which probes have diameters in the nanometer range and may be inserted into cells or other subjects so as to monitor an electrical characteristic of ..

PIEZOELECTRIC POWERED VEHICLES AND MOTORS

One or more piezoelectric elements are employed to generate electrical energy from one or both of the mechanical energy of a moving part of a conventional engine or vehicle or the combustion energy of..

LEAD-FREE PIEZOELECTRIC CERAMIC FILMS AND A METHOD FOR MAKING THEREOF

his invention relates to lead-free piezoelectric ceramic films and a method of making thereof. Specifically, the invention is directed to a method for fabricating lead-free piezoelectric free standing..

PLASMA REACTOR

A plasma reactor (10) is provided. The plasma reactor (10) includes a reaction chamber (12) formed by a wall (13). Proximate to the first end of the reaction chamber, the plasma reactor includes a fee..

FREESTANDING FILMS WITH ELECTRIC FIELD-ENHANCED PIEZOELECTRIC COEFFICIENTS

A method to produce low-temperature sinterable powders which are then subsequently used to fabricate freestanding piezoelectric films with very large electric-field-enhanced piezoelectric response is ..

ENHANCED DETECTION SENSITIVITY WITH PIEZOELECTRIC MICROCANTILEVER SENSORS

A method for enhancing the detection sensitivity of a piezoelectric microcantilever sensor. The method may involve providing a piezoelectric microcantilever and inducing a change in the Young's modulu..

SUPERCAPACITOR COMPOSITIONS, DEVICES, AND RELATED METHODS

Disclosed are supercapacitor materials comprising compositions having pores that are optimally sized to maximize capacitance. Also disclosed are related methods for fabricating such supercapacitors.

A SMOOTH-WALLED FEEDHORN

A device for at least one of receiving and transmitting electromagnetic radiation includes a feedhorn having a substantially smooth, electrically conducting inner surface extending from an open end to..

IRON OXYFLUORIDE ELECTRODES FOR ELECTOCHEMCIAL ENERGY STORAGE

The present invention provides electrochemical energy storage systems comprising metallolyte composites, iron fluoride composites and iron oxyfluoride composites. The present invention further provide..

POLYHYDROGEN FLUORIDE BASED BATTERY

The described invention relates to primary and secondary electrochemical energy storage systems, particularly to such systems as battery cells, which use materials that take up and release ions as a m..

SYSTEM AND METHOD FOR MEASURING CONSUMPTION IN A RESIDENTIAL OR COMMERCIAL BUILDING VIA A WALL SOCKET

A system and method to measure power usage within a residence having a plurality of electrical circuits electrically connected to an over-current protection device may include measuring, by a power me..

ELECTROSTATIC SCREEN DEVICE AND METHOD FOR EMISSION CONTROL

An electrostatic screen battery for emission control (ESBEC) system includes a plurality of screens. The screens are arranged in an alternating manner so that screens at a first electric potential are..

METAL FLUORIDE COMPOSITIONS FOR SELF FORMED BATTERIES

The described invention provides compositions related to an electronically insulating amorphous or nanocrystalline mixed ionic conductor composition comprising a metal fluoride composite to which an e..

REACTIVE-POWER-CAPABLE INVERTER

In an inverter (1), comprising two input lines (22, 23) for connecting to a direct current source (2), two half bridges (4, 5) connecting the two input lines (22, 23), and two output lines (16, 17) fo..

BUCK CONVERTER AND INVERTER COMPRISING THE SAME

A buck converter (5) for converting a DC voltage at input terminals into an output voltage at output terminals is disclosed. The buck converter (5) comprises a DC voltage link comprising a series-conn..

LOW RESISTANCE THIN FILM ORGANIC SOLAR CELL ELECTRODES

A method which lower the series resistance of photosensitive devices includes providing a transparent film of a first electrically conductive material arranged on a transparent substrate; depositing a..

Post-Processing Treatment of Conductive Polymers to Enhance Electrical Conductivity

A method for enhancing electrical conductivity of a film which includes at least one conductive polymer. The method includes providing the film comprising the at least one conductive polymer and at le..

FLEXIBLE PIEZOELECTRIC STRUCTURES AND METHOD OF MAKING SAME

A flexible piezoelectric structure and a method of making the structure are disclosed. A piezoelectric film having a relatively high piezoelectric coefficient is attached to a flexible substrate. The ..

Increased open-circuit-voltage organic photosensitive devices

The invention relates to a photosensitive device comprising: an anode and a cathode; and a first organic material and a second organic material forming a donor-acceptor heterojunction electrically con..

TUNABLE NEGATIVE PERMEABILITY BASED DEVICES

Negative permeability metamaterials and devices based on negative permeability metamaterials are described. The invention presents a new paradigm for realizing electromagnetic devices utilizing natura..

Anisotropic metal-dielectric metamaterials for broadband all-angle negative refraction and superlens imaging

A metamaterial comprises a plurality of metallic nanowires embedded in a dielectric matrix. The metamaterial composite media provide broadband all-angle negative refraction and flat lens, superlens an..

Dielectric and magnetic particles based metamaterials

RF-optical metamaterials with (+-epsilon, +-mu) figures-of-merit of interest are constructed from coupled magnetic and dielectric multi-resonant multi-disks (finite-size cylinders) or multi-sphere lat..

DUAL INTERLEAVED FLYBACK CONVERTER FOR HIGH INPUT VOLTAGE

An integrated magnetic flyback converter includes interleaved phases that can be connected in series for an input stage and in parallel for an output stage. An integrated magnetic core has legs with g..

NANOSCALE INTERCONNECTS FABRICATED BY ELECTRICAL FIELD DIRECTED ASSEMBLY OF NANOELEMENTS

The invention provides a fast, scalable, room temperature process for fabricating metallic nanorods from nanoparticles or fabricating metallic or semiconducting nanorods from carbon nanotubes suspende..

PULSE ELECTROTHERMAL DEICING OF COMPLEX SHAPES

A pulse electrothermal deicing apparatus comprises at least one complex shape characterized by a thickness profile configured to generate uniform power per unit area to melt an interfacial layer of ic..

SYSTEM AND METHOD FOR POST-EXPOSURE DOSIMETRY USING ELECTRON PARAMAGNETIC RESONANCE SPECTROSCOPY

An apparatus and method for triaging patients according to radiation exposure operates by measuring electron paramagnetic resonance spectra of fingernails, toenails, and/or teeth. When operating in vi..

SYSTEM AND METHOD USING COUPLER-RESONATORS FOR ELECTRON PARAMAGNETIC RESONANCE SPECTROSCOPY

A coupler-resonator for electron paramagnetic resonance (EPR) spectroscopy in subjects has a wire loop formed into a coupling loop, a central transmission portion, and sensor loops. The sensor loops h..

MULTILAYER FOIL-WOUND INDUCTORS HAVING ALTERNATING LAYERS

A multilayer foil winding in a foil-wound magnetic circuit component (200) has conductors (202, 204, 402, 408) that alternate at various points such that the conductors share current more effectively ..

SYSTEMS AND METHODS FOR WINDSHIELD DEICING.

Cost efficient, lightweight and rapid windshield deicing systems and methods are disclosed. The systems utilize step-up converters or inverters, or dual-voltage batteries, to provide a voltage high en..

System and method for deicing of power line cables

A system and method for deicing power transmission cables divides the cable into sections. Switches are provided at each end of a section for coupling the conductors together in parallel in a normal m..

CONDUCTIVE FORMULATIONS FOR USE IN ELECTRICAL, ELECTRONIC AND RF APPLICATIONS

Metal flakes, an organic metal precursor, an organic solvent and either no binder, or a volatile or a thermally decomposable binder are combined to form a paste. The paste is deposited in a circuit pa..

Chiral Metamaterials

A metamaterial includes a dielectric substrate and an array of discrete resonators at the dielectric substrate, wherein each of the discrete resonators has a shape that is independently selected from:..

INFRARED LASER METHODS AND APPARATUS

In one aspect, a laser system is provided. The laser system comprises an oscillator comprising an active material for generating photons, the active material responsive to first laser radiation such t..

THERMOELECTRIC SKUTTERUDITE COMPOSITIONS AND METHODS FOR PRODUCING THE SAME

Compositions related to skutterudite-based thermoelectric materials are disclosed. Such compositions can result in materials that have enhanced ZT values relative to one or more bulk materials from wh..

NANOCOMPOSITES WITH HIGH THERMOELECTRIC FIGURES OF MERIT

The present invention is generally directed to nanocomposite thermoelectric materials that exhibit enhanced thermoelectric properties. The nanocomposite materials include two or more components, with ..

Solar Thermoelectric Conversion

Systems and methods utilizing solar-electrical generators are discussed. Solar- electrical generators are disclosed having a radiation-capture structure and one or more thermoelectric converters. Heat..

METHOD AND APPARATUS FOR GENERATING ELECTRICITY WHILE A USER IS MOVING

The present disclosure provides for systems and methods for generating electricity while a user is moving. More particularly, the present disclosure provides for improved systems and methods for gener..

DETECTING AND REVOKING PIRATE REDISTRIBUTION OF CONTENT

Disclosed are methods, systems and articles for tracing and disabling one or more unauthorized distributors of content originally transmitted by a distribution center. In some embodiments, a method in..

Increased Activity of Catalyst Using Inorganic Acids

The present disclosure provides for improved electrochemical devices (e.g., fuel cells, metal air batteries, ultra capacitors, etc.) and components therefore. More particularly, the present disclosure..

RECONFIGURABLE MAGNETIC LOGIC-CIRCUIT ARRAY AND METHODS FOR PRODUCING AND OPERATING SUCH LOGIC DEVICES

The invention relates to a reconfigurable magnetic logic-circuit array having at least two magnetoresistive elements, each composed of at least two magnetic layers, which are separated from one anothe..

INTEGRATED MEMS AND IC SYSTEMS AND RELATED METHODS

An integrated MEMS and IC system (MEMSIC), as well as related methods, are described herein. According to some embodiments, a mechanical resonating structure is coupled to an electrical circuit (e.g.,..

ELECTRO-MECHANICAL OSCILLATING DEVICES AND ASSOCIATED METHODS

Electro-mechanical oscillating devices designed to convert the frequency of electrical signal(s) and methods associated with the same are described. One example of such a frequency converting device i..

ION-SELECTIVE SOLID CONTACT MICROELECTRODE AND ITS PRODUCTION METHOD

The presented invention relates to a needle-shaped ion-selective solid contact microelectrode with the length of the measuring point preferably but not limited to equal or less than 10 micron, particu..

POSITIVE PEAK DETECTOR

The invention relates to a positive peak detector (1') that has been specially designed to operate at high frequencies with low power consumption, formed by a cell Gm (2'), a current mirror (3') forme..

METHOD FOR PROTECTING HUMAN BEINGS AGAINST ELECTRIC DISCHARGES

The present invention relates to a method for protecting human beings against electric shocks. The method is used to detect power being passed through a human body that is insulated from the earth or ..

DEVICE FOR GENERATING ELECTRIC POWER FROM SMALL MOVEMENTS

The present invention relates to a device for generating electric power from small movements, comprising: a magnet in the form of a solid of revolution including at least one pair of poles (N, S) arra..

A PIEZOELECTRIC DRIVE ASSEMBLY

A piezoelectric drive assembly (10) comprises a frame (11) supporting at least two piezoelectric actuator stacks (12), the frame (11) including a plurality of frame elements (13, 16, 19) and the actua..

OSCILLATOR CIRCUIT FOR GENERATING AN ALTERNATING VOLTAGE

Oscillator circuit for generating an alternating voltage (VAC), comprising an oscillator according to a micro-electromechanical system (MEMS-oscillator) to be manufactured as integrated circuit and co..

INDUCTOR TYPE AC GENERATOR

This invention presents inductor generator with multiphase armature and excitation winding. Generator consists of toothed, non-wound rotor 1 and toothed stator 2 with coils of basic multiphase armatur..

RADIAL ELECTRIC DISTRIBUTION LINE WITH BRANCHES

The invention refers to the field of electrical engineering and could be applied for electric network supply out of cities. The purpose of the invention is to improve the electic power indices in the ..

DIAGNOSTIC SYSTEM FOR DETERMINATION OF RAILWAY SWITCH FAULT PROBABILITY

The invention relates to electrical engineering, particularly to transportation sector. Its goal is to create a diagnostic system to be capable from actual measured runtime parameters conclude about t..

ASYNCHRONOUS MOTOR DRIVE

The invention refers to electrical engineering and it could be used in electric drives. Its purpose is to stabilize the electromagnetic torque in the case of power supply network voltage and frequency..

DC ELECTRICAL DRIVE OF AC ELECTRICAL TRAIN

Invention corresponds to electrical engineering and more precisely to electrical drives of AC electrical trains. Target of invention is to improve energetic parameters of AC electrical trains DC elect..

THE DISTANCE DETERMINIG METHOD OF THE SINGLE-PHASE EARTH FAULT IN ELECTRIC DISTRIBUTION NETWORKS

The invention relates to the electrical power sector protective relaying and automation, used for determining the location of earth fault in power line networks with isolated neutral and compensated n..

BAR INDUCTOR MACHINE

The invention is devoted to contactless electric machines and can be applied on alternative power engineering. Its goal is to increase the generated power at low rotation frequencies and to decrease t..

METHOD FOR VERIFICATION OF ELECTRICAL CORELESS COILS

The invention applies to electrical engineering and more specifically to the electrical coils insulation research. Its aim is to create a verification system, in which the coreless coil shortly is exp..

MULTIPOLAR SYNCHRONOUS GENERATOR WITH PERMANENT MAGNETS

The multipolar synchronous generator with permanent magnets has been proposed. The generator contains a stator having Zs number of evenly placed teeth with a pitch distance between teeth ts, which are..

DEVICE FOR CONTROL PARAMETERS OF MAGNETICALLY LINKED WINDINGS

Invention relates to electrical engineering and can be used for diagnostics. Its aim is to extend the control equipment functionality. The equipment contains a unipolar pulsed power generator 1, switc..

AUTONOMOUS INVERTOR OF CURRENT

Invention relates to electrical engineering, and it can be used for the electrical drive. Its aim is to improve the current form factor. Invention contains two autonomous dc sources 1 and 9, each conn..

DEVICE FOR CONTROL OF MAGNETICALLY CONNECTED WINDINGS

The invention is devoted to electrical engineering, and it can be applied in diagnostics. The goal of the invention is to extend functional possibilities of control devices. The device contains single..

ELECTROMECHANICAL GENERATOR

Invention relates to mechanical human motion energy converter to the electric energy. It is proposed the electromechanical generator which operates on the principle of electromagnetic induction and co..

SYSTEM OF BIDIRECTIONAL DC POWER FLOW AT THE ELECTRIC TRANSPORT TRACK SUBSTATIONS

The invention is related to electrical engineering and to the supply systems of electric transport network in particular. The goal of the invention is to simplify the realization of bidirectional DC p..

GROUND FAULT CIRCUIT INTERRUPTER

Disclosed is ground fault circuit interrupter comprising a summation current transformer (RK, W, SC) for lines (L1, N) that are to be monitored and are led across the contacts of a first multipole swi..

Blue light emmiting polythriphenylene dendrimers, methods of preparation and uses thereof

The present invention relates to novel blue light emitting polytriphenylene dendrimers, methods of preparation and uses thereof. The present polytriphenylene dendrimers comprise a core unit with linke..

A FLEXIBLE PATCH ANTENNA

According to a first aspect of the present invention, a flexible patch antenna is provided. The flexible patch antenna comprises a first dielectric layer of a flexible elastomer material, the first di..

SENSORLESS CONTROL OF SALIENT-POLE MACHINES

A controller (100) for controlling a salient-pole machine (200) is disclosed. The controller (100) is adapted to determine at least one operational parameter of the salient-pole machine (200), such as..

AXIAL FLUX PERMANENT MAGNET MACHINE

Permanent magnet synchronous machines (100) are described having good efficiency, as well as corresponding methods for making a stator (110) or stator teeth (114) for such machines. A method for fabri..

RESONANCE-BASED ROTOR POSITION ESTIMATION

The present invention relates to sensorless rotor position estimation of a salient machine, such as a switched reluctance machine or a salient brushless DC machine. The invention relates to a test sys..

Circuit for Converting a Pulsed Input Voltage to a DC Voltage

The present disclosure presents a circuit for converting a pulsed input voltage to a DC output voltage. The circuit comprises input nodes for receiving the pulsed input voltage and output nodes for ou..

Circuit for End-of-Burst Detection

A circuit for end-of-burst detection in a portion of a received bit stream is disclosed. The circuit comprises: a first counter for counting the number of bits in the portion, a second counter for cou..

Stepping Actuator and Method of Fabrication

The current invention provides a stepping actuator, achieving large range up to +-35 mum with low operating voltages of 15V or lower and large output forces of up to +-110 muN. The actuator has an in-..

SOLUTION PROCESSING METHOD FOR FORMING ELECTRICAL CONTACTS OF ORGANIC DEVICES

The present invention relates to a method for forming, on an organic semiconductor layer, an electrical contact layer comprising a metal, the method comprising the steps of: (a) providing a charge col..

TRIPLET EXCITATION SCAVENGING IN SOLID-STATE ORGANIC MATERIALS

The present invention is directed to solid state organic light emitting devices and to methods for triplet excitation scavenging in such devices. More particularly, the present invention relates to a ..

Electrostatically actuatable MEMS device

Electrostatically actuatable MEMS device comprising: a substrate (103) of which at least a top layer (106) comprises a dielectric material; a first conductor (102) fixed to the top layer of the substr..

PATTERNING AND CONTACTING OF MAGNETIC LAYERS

A method according to embodiments of the present invention comprises providing a magnetic stack comprising a magnetic layer sub-stack comprising magnetic layers (41) and a bottom conductive electrode ..

Two Layer Transformer

One aspect of the invention relates to a symmetrical transformer with a stacked coil structure comprising two coils each having at least two turns, said coils being located in two conductive planes. T..

Organic light-emitting device with field-effect enhanced mobility

A two-terminal organic light-emitting device structure is presented with low absorption losses and high current densities. Light generation and emission occur at a predetermined distance from any meta..

METHOD AND DEVICE FOR REDUCING POWER CONSUMPTION IN APPLICATION SPECIFIC INSTRUCTION SET PROCESSORS

A method and device for converting first program code into second program code, such that the second program code has an improved execution on a targeted programmable platform, is disclosed. In one as..

METHOD AND DEVICE FOR PRODUCING AND STORING ENERGY

The invention relates to a method and a device for producing and storing electrical energy using iron complexes, using a molecular complex of iron + III as well as a photoreduced iron +II complex, bot..

ENERGY CONDITIONER

Electrical circuitry comprising a load (3) able to be powered by an electricity network (2), said electrical circuitry comprising an energy conditioner (1) positioned between said electricity network ..

RADIATION DETECTORS AND AUTORADIOGRAPHIC IMAGING DEVICES COMPRISING SUCH DETECTORS

The invention relates to a radiation detector through which flows a gas mixture of rare gas and carbon dioxide and which comprises an amplifying structure (7) including an input electrode (8) and an o..

INTERMETALLIC COMPOUNDS, THEIR USE AND A PROCESS FOR PREPARING THE SAME

The present invention relates to new intermetallic compounds having a crystalline structure of Ni3Sn2 type for the magnetic refrigeration, their use and a process for preparing the same. The present i..

NEW INTERMETALLIC COMPOUNDS, THEIR USE AND A PROCESS FOR PREPARING THE SAME

The present invention relates to new intermetallic compounds having a crystalline structure of Ni3Sn2 type for the magnetic refrigeration, their use and a process for preparing the same. The present i..

SENSOR FOR NON-CONTACT ELECTRIC AND MAGNETIC FIELD MEASUREMENTS

The present invention relates to a probe and a sensor for measuring electric fields, more specifically to a probe that in combination with an electrometer allows measurement of an electric field with ..

PROGRAMMABLE GATE ARRAY, SWITCH BOX AND LOGIC UNIT FOR SUCH AN ARRAY

A switch box (2) for a programmable gate array including input ports grouping a plurality of inputs (I, I') and output ports grouping a plurality of outputs (O, O'), with the inputs and the outputs be..

DEVICE FOR GENERATING CLOCK SIGNALS FOR ASYMMETRIC COMPARISON OF PHASE ERRORS

The invention relates to a device for generating clock signals, comprising a phase locked loop (100) including: - a controlled oscillator (101) capable of outputting a clock signal, - a plurality of p..

A POWER AMPLIFIER

A switched mode class- S power amplifier comprises a sigma-delta modulator with a digital input, a power switch connected to the output of the sigma-delta modulator providing the power amplifier outpu..

MICROELECTROMECHANICAL SYSTEM TUNABLE CAPACITOR

The present invention provides a new type of microelectromechanical capacitor, that allows ' a first selective deflection of a movable capacitance electrode to form an arched shape over a fixed capaci..

DIGITAL PULSE WIDTH MODULATOR

The invention provides a multi-phase digital pulse width modulator (MP-DPWM) to implement a distribution scheme which applies the duty cycle in the fastest possible manner with restriction on the numb..

A system level power evaluation method

This invention relates to a system level power evaluation method in which detailed power macro-models (PMM) are created for operations of modules. These PMMs are stored in memory. A system level circu..

ELECTROLUMINESCENT DEVICE

The present invention relates to an electroluminescent device (1). The device comprises a transparent substrate (6), formed from a mouldable material. The device also comprises a transparent electron ..

Adaptive clocking system for a packet classifier

An adaptive clocking system 100 for a packet classifier is described. The system provides for control of the clocking frequency of the packet classifier dependent on the traffic within the packet base..

POWER SPLITTER

A power splitter comprising a transmission line and having at least one secondary winding(s) arranged about the transmission line, the transmission line operably providing a magnetic field which induc..

System for analysing plasma

A system 400 for analysing plasma comprises at least one sensor 125 which is co-operable with a plasma generator for sensing a characteristic of plasma generated by the plasma generator and generating..

AN OPTICAL WAVELENGTH COMB GENERATOR DEVICE

The present application relates to comb frequency generator devices generally and more particularly to the use of comb generators for use in fibre optic communications. More particularly, the applicat..

Improved p-type thermoelectric materials, a process for their manufacture and uses thereof

A thermoelectric material of the p-type having the stoichiometric formula Zn 4 Sb 3, wherein part of the Zn atoms optionally being substituted by one or more elements selected from the group comprisin..

ELECTRODE FOR ELECTROCHEMICAL CELLS

The invention relates to an electrode for oxygen reduction comprising a porous organic material and at least one inherently conducting polymer such as a charge transfer complex or a conductive polymer..

AN IMAGING DETECTOR FOR A SCANNING CHARGED PARTICLE MICROSCOPE

The present disclosure provides a component for an imaging detector of a scanning charged particle microscope. The scanning changed particle microscope has a column for providing a scanning beam of th..

IMPROVED METHOD AND APPARATUS FOR DIMMING A LIGHTING DEVICE

The present invention relates to a method and an apparatus for controlling illumination of a light device such as a high power light emitting diode. Electrical power is alternately switched to the HP-..

A SINGLE PHOTON EMISSION SYSTEM

The present disclosure provides a method of forming a single photon emission system and a single photon emission system. The method comprises providing a single photon source arranged for single photo..

METHOD FOR IMAGE RANGE EXTENSION IN OPTICAL COHERENCE TOMOGRAPHY

A method of generating a tomogram of a sample (18) wherein an analysis beam (Ed) is subject to dispersion distortion, the method comprising: a) detecting the analysis beam (Ed) b) generating a signal ..

METHOD OF FORMING AN ELECTRICAL CIRCUIT USING FULLERENE DERIVATIVES

The present invention resides in a method of forming an electrical circuit, comprising forming on a substrate a non-conducting film having as its major constituent one or more fullerene derivatives, f..

DISPERSION COMPENSATION

Tuneable dispersion slope compensation by employing two waveguide gratings (2, 3) which, within their respective operating spectra, display substantially oppositely varying group delay or dispersion p..

SUPERCONTINUUM GENERATION USING RAMAN PUMPED OPTICAL CAVITY

Apparatus (10) for generating a supercontinuum (SC) in an optical cavity (18) by increasing the power of pump radiation having a first wavelength to cause broadening of lasing radiation having a secon..

INTEGRATED CELL VOLTAGE MEASUREMENT AND EQUALIZATION SYSTEM FOR SERIES-CONNECTED BATTERIES AND METHOD FOR OPERATING SAME

A battery pack management system comprises a power supply adapted to be connected to a battery pack. The battery pack includes a plurality of cells, where each cell is interconnected in a series arran..

SYSTEM FOR SELECTIVELY FILLING PIN HOLES, WEAK SHUNTS AND/OR SCRIBE LINES IN PHOTOVOLTAIC DEVICES AND PHOTOVOLTAIC CELLS MADE THEREBY

A system for selectively filling pin holes, weak shunts and/or scribe lines in photovoltaics devices and photovoltaic cells made thereby is described.

SYSTEM AND METHOD FOR HIGH YIELD DEPOSITION OF CONDUCTIVE MATERIALS ONTO SOLAR CELLS

A system for reducing damage to solar cells during a process for depositing a conductive material on a solar cell is disclosed where an electrical bias or floating potential is applied to the solar ce..

METHOD AND DEVICE FOR CONTROLLING THE OPERATION OP POWER SOURCES AT THE POINT OF MAXIMUM POWER

Provided herein are a control method and a control device for controlling a supply unit, which enable supply of the maximum power that can be delivered by a power source, said method being characteriz..

METHOD FOR CONTROLLING AN ELECTRIC POWER GENERATION SYSTEM BASED ON ENERGY SOURCES, IN PARTICULAR RENEWABLE ENERGY SOURCES, AND RELATED CONTROLLER DEVICE

The present invention concerns a method, and the related controller device, for controlling an electric power generation system, based on at least one energy source, in particular a renewable energy s..

ENHANCING SIGNALS

A method of testing a sample comprising the steps of: applying an excitation to the sample; detecting a response signal from the sample; processing a first part and a second part of the response signa..

Light emitting diode

AC LED according to the present invention comprises a substrate (51), and at least one serial array having a plurality of light emitting cells connected in series on the substrate. Each of the light e..

Light emitting diode having well and/or barrier layers with superlattice structure

A light emitting diode (LED) having well and/or barrier layers with a superlattice structure is disclosed. An LED has an active region between an N-type GaN-based semiconductor compound layer and a P-..

TRANSMISSION CABLE

A transmission cable has multiple signal lines 2 formed on one side of an insulation layer 1 and a ground line 3 between the signal lines 2. The ground line 3 is electrically connected to a shield lay..

MOUNTING METHOD

A mounting method is provided for mounting electric components on both faces of a substrate. Because the electric components 32, 33 on a front face and a rear face of the substrate 31 are simultaneous..

MOUNTING METHOD, BOARD WITH ELECTRICAL COMPONENT, AND ELECTRICAL APPARATUS

An electric device having high reliability is to be produced. An adhesive layer 20 includes a thermosetting resin and a radiation-curable resin, and a portion of the adhesive layer 20 is protruded out..

METHOD FOR MANUFACTURING SUBSTRATE HAVING ELECTRIC COMPONENT

A simple method of producing an electric component-mounted substrate having a cavity structure is provided. Because a supporting substrate 20 and electric components 31 and 32 are connected together ..

Light emitting diode and method for manufacturing the same

Provided are a light emitting diode (LED) and a method for manufacturing the same. The LED includes an n-type semiconductor layer, an active layer, and a p-type semiconductor layer. The active layer i..

THERMOCOMPRESSION BONDING HEAD AND MOUNTING DEVICE USING THE SAME

The present invention provides a thermocompression bonding head capable of mounting an electric component on a wiring board in a short time with high connection reliability, and provides a mounting de..

MOUNTING METHOD USING THERMOCOMPRESSION HEAD

The present invention provides a mounting method using a thermocompression head which can mount an electric component in a short time with high connection reliability. The method is provided for mount..

METHOD AND APPARATUS FOR MOUNTING ELECTRIC COMPONENT

Provided is an electric component mounting apparatus for greatly reducing a quantity of electric component warpage generated at the time of mounting a thin electric component having a thickness of 200..

METHOD AND APPARATUS FOR MOUNTING ELECTRIC COMPONENT

Provided is an electric component mounting apparatus for greatly reducing a quantity of electric component warpage generated at the time of mounting a thin electric component having a thickness of 200..

HEXACYANOFERRATE MODIFIED ELECTRODE

An electrode comprising a modified electrically conductive element comprising an electrically conductive element having a surface and a coating of a polyelectrolyte on said surface, and a transition m..

ELECTRICAL TOMOGRAPHY APPARATUS AND METHOD AND CURRENT DRIVER

Electrical tomography apparatus comprises: a first electrode; a second electrode; and current driving means for driving an electrical current between the first electrode and the second electrode throu..

High voltage insulation monitoring sensor

A sensor for condition monitoring the high voltage insulation of an electrical, generation, transmission or distribution system and/or an item of plant is described. The sensor comprises an impedance ..

ELECTRODE, DECONTAMINATION APPARATUS AND METHOD

An electrode comprises a surface region, in which at least a first portion of the surface region has been changed to generate a roughened surface profile, and in which the roughened surface profile sa..

PLASMA GENERATION AND USE OF PLASMA GENERATION APPARATUS

A plasma generating apparatus comprises a first, powered electrode and a second electrode structure located in front of the first electrode. An insulating layer is interposed between the first electro..

ULTRASOUND TRANSDUCER ARRAY

An ultrasonic transducer array and method of making an ultrasonic transducer array. The array comprising a plurality of individual array elements made from a piezoelectric composite which is made from..

PROTECTIVE ELEMENT

The present invention provides a protective element capable of stopping heat generation of a heat generation resistor after all of fuse elements are surely blown out in a case where the power is distr..

ELECTRIC DEVICES AND METHODS OF MANUFATURING THE SAME

A process for manufacturing an electrical device, the process comprising the steps: providing a substrate; bringing a stamp into contact with the substrate whereby areas of the substrate contacted by ..

TERAHERTZ QUANTUM CASCADE LASERS (QCLS)

Quantum cascade lasers (QCLs), and methods of manufacture of QCLs, comprising an active portion. In some embodiments, the active portion can comprise: a plurality of tensiley strained quantum barrier ..

High temperature superconductors

A high temperature superconductor composition includes a matrix of a high temperature superconductive oxide. Non-superconductive particles are distributed in the matrix. At least some of the non-super..

SEMICONDUCTOR MATERIAL

A semiconductor device which comprises a channel layer formed from a semiconductor channel component material in the form of crystalline micro particles, micro rods, crystalline nano particles, or nan..

SOLID IMAGING DEVICE AND X-RAY CT DEVICE INCLUDING THE SOLID IMAGING DEVICE

The present invention relates to a solid-state imaging device, etc. having a structure for capturing a high-resolution image even when any row selecting wiring is disconnected. The solid-state imaging..

Terminal device and base station device

A base station (50) measures a signal to interference power ratio using a control signal received from a terminal device (10) through wireless communication, and decides an MCS value indicating a comb..

SEMICONDUCTOR DEVICE, LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME

Disclosed are a semiconductor device, a light emitting device, and a method of manufacturing the same. The semiconductor device includes a substrate, a plurality of rods aligned on the substrate, a me..

Light emitting device, light emitting device package, and lighting system

Provided are a light emitting device, a light emitting device package, and a lighting system. The light emitting device comprises a first semiconductor layer comprising a plurality of vacant space par..

METHOD FOR FORMING AN ELECTRONIC DEVICE IN MULTI-LAYER STRUCTURE

A method for forming an organic or partly organic switching device, comprising: depositing layers of conducting, semiconducting and/or insulating layers by solution processing and direct printing; def..

Wide band gap semiconductor device including junction field effect transistor

A wide band gap semiconductor device has a transistor cell region, a diode forming region, an electric field relaxation region located between the transistor cell region and the diode forming region, ..

BLENDED POLYMER FETS

A method for forming a semiconductor body, the method comprising: forming a mixture of an organic semiconducting material and a binder material; causing the semiconducting material to at least partial..

ALIGNED POLYMERS FOR AN ORGANIC TFT

A method for forming an electronic device having a semiconducting active layer comprising a polymer, the method comprising aligning the chains of the polymer parallel to each other by bringing the pol..

Resonator Tuning

A resonator system contains one or more resonator, and has a plurality of degenerate resonant modes. Switching circuitry can be operated for controlling a degree of coupling between the resonant modes..

Self-calibrating multiplication circuit for stationary reference current - produces most significant bit currents from parallel current cells switched to comparison and correction current rails

Each circuit cell (A1-An) includes a FET (1) gated from a control amplifier (4), whose noninverting input is connected to a capacitor (5) and current switch (6), and the inverting input to an equalisi..

Finely-crystalline soldered joint for joining semiconductor chips to support - using solder foil, temp. of which is held just below the liquids after wetting support

A process is disclosed for mfg. a mechanically stable, finely crystalline soldered joint, particularly for power electronics components. Amorphous, finely-crystalline or conventional solder materials ..

Operating discharge lamps esp. HP lamps for large spaces - superimposing wide band of higher frequencies on basic drive frequency to give smooth running of discharge lamps

The wide band of higher frequencies is self generated by a resonance alternating effect between the discharge lamp and a resonant circuit tuned externally related to its parameters. The circuit for op..

Generating gas discharge for sputter process - extending electron paths using permanent magnet set into cylindrical cathode to generate field cutting field lines of anode

The method involves using a magnetic cylindrical cathode (1) with an aperture (4) which is axially aligned with the anode (2). Within the cylindrical cathode body is a permanent magnet (5), again axia..

Light-emitting semiconductor devices having variable emission wavelengths

An inventive semiconductor device for emitting light when applying a voltage comprises: a first semiconductor region ( 3 ) whose conductivity is based on charge carriers of a first type of conductivit..

Electrophoretic separation of particle fractions, especially protein fractions, in microfluid system with independently controllable flow of auxiliary buffer in control channel and sample buffer in sa

Electrophoretic separation of a particle fraction in a microfluid system with microchannels involves: (i) passing an auxiliary buffer (AB) through a control channel (CC) (22); (ii) passing a sample me..

Semiconductor Device For Emitting Light

A semiconductor device according to the invention for emitting light when a voltage is applied includes a first ( 3 ), a second ( 5 ) and a third active semiconductor region ( 7 A- 7 C). While the con..

Electrical filter i.e. electromagnetic compatibility line filter, for supply arrangement at power terminal for supply of electrical system, has coordinated circuit arrangement influencing filter chara

The filter (101) has a main filter circuit filtering unwanted frequency portions e.g. electromagnetic compatibility relevant disturbances, and a coordinated circuit arrangement (102) e.g. resonant cir..

Electronic device

The device has a cooling body (2) for removing heat from an electronic component (1) e.g. processor, during operation of the device. Air ducts are arranged in a conical form or a hyperboloid form abov..

DATA COLLECTION DEVICE AND GATEWAY DEVICE

This invention intends to provide a data collecting apparatus and a gateway apparatus capable of reducing the labor for setting the threshold value or condition used for a real running point, reducing..

Method and device for measuring the electric current supplied by a high-voltage line to a railway vehicle

The present invention relates to a device of measurement of the electric current provided by a line high voltage to a railway vehicle as well as a process implementing the aforementioned device and su..

Device indicating a radiofrequency field and manufacturing method

The invention relates to a device including/understanding an electric/electronic component (8, 2,12a, 13) connected to at least an antenna radio frequency (3, 19,20) likely to be traversed by a curren..

MULTI-WIRE ELECTRON DISCHARGE MACHINE

A multi-wire electron discharge machine includes a first wire electrode for creating an electrical discharge between the first electrode wire and a semiconductor ingot, a second wire electrode for cre..

ELECTRET AND ELECTROSTATIC INDUCTION CONVERSION DEVICE COMPRISING THE SAME

To provide an electret whose surface potential is improved and an electrostatic induction conversion device comprising the same, an electret is formed by spin-coating a fluorine-containing polymer com..

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

Provided is an image forming apparatus which, even after the print speed thereof has been switched, correctly determines the necessity for cleaning of corona wire. When printing, the image forming app..

ELECTROLYTIC COPPER FOIL AND COPPER-CLAD LAMINATE

To provide an electrodeposited copper foil having flexibility and bending property equivalent to or better than that of rolled copper foil, an electrodeposited copper foil wherein regarding a crystal ..

INSULATING MEDIUM AND ITS USE IN HIGH VOLTAGE DEVICES

An insulating composition for use in high voltage devices is formed from a soft dielectric casting compound, such as a silicone gel, comprising ferroelectric particles such as barium titanate disperse..

3-dimentional advertising means

Signage in forms letter, digit or other sign having inside ligts and connected to outside clamps installed on bars as electrical connectors. We built prototype as pre-manufactured LED channel le..

Extremely High Voltage DC Electric Energy Storage System - Seamless Power For The National Grid!

A patented soft-switching inverter designed especially for de-energizing high-voltage, high-energy capacitors is revealed in US Patent 7,157,884 (Hacsi) and used in conjunction with a very large in-gr..

Digital Watermarking

2 patent pending digital watermarking systems for sale.

ELECTRONIC DEVICE FOR COMMUNICATION WITH LIVING CELLS (GOLDEN BRAIN)

Highlights Electrical and chemical communication (functional linking) between cells such as neurons and the surfaces of substrates that are part of electronic devices Generic technology can serve a..

Use of Surfactants to Control Unintentional Dopant Incorporation in Semiconductors

The surface properties of semiconductors can be controlled by the use of surfactants. Our technology shows the use of surfactants that lead to a decrease in concentration of harmful impurities incorp..

Precision Machining of Shaped Semiconductor Boules for Minimization of Surface Microcracking

Boule-shaping, wafer sawing, slicing and grinding are some of the processes involved in the specialty semiconductor manufacturing process. Non-silicon materials used as substrates in specialty semicon..

A Virtual Electrochemical Laboratory

This software-based invention simulates a laboratory environment that enables students to understand how common electrochemical experiments are performed. Easily installed on a Microsoft Windows plat..

Conductive and Magnetic Phases in an Electron Trapping Semiconductor Array

Nanotechnology is a rapidly evolving field where the race is on to develop self-organizing structures that can be used as active circuit elements. This technology describes a semiconductor array that ..

A Current Steering Folding Amplifier

The analog-to-digital converter (ADC) is a key functional building block in most analog/digital VLSI systems. Most applications require high-speed ADC�s with low power consumption. Our technology p..

Formation of AIFeCu Quasicrystalline Thin Films by Solid State Diffusion

This technology describes the fabrication and coating of quasicrystalline films (less than about 3000 A� thick) of AlCuFe on different substrate materials such as strontium titanate, and sapphire by..

Quantitative Inversion of Scanning Capacitance Microprobe (SCM)

With the shrinkage of semiconductor devices to the sub-micron level, a great need exists for direct, quantitative, two dimensional dopant profile measurements on a nanometer scale. Direct measurement ..

Improvements to The Quasi-1D SCM AC to Dopant Density Conversion Algorithm and a New Quasi-3D SCM AC Bias to Dopant Density Conversion Algorithm

State of the art integrated circuit technology demonstrates that it is possible to create active and passive electrical and electronic components on a semi-conductive substrate at the sub-micron leve..

Lab-On-A-Chip: Microfluidic Flow Cytometry

Seemingly identical cells are often quite heterogeneous in their chemical composition and biological activity, and in the timing and magnitude of their responses to external stimuli. Determining the..

Real Time Monitoring of Power Grid Stability

This technology provides a novel method to estimate power grid stability by measuring in real time, with a single time-point, instabilities and drift at a power grid node, such as a power substation. ..

High Throughput μ-Electro-Discharge Machining

Researchers at the University of British Columbia have developed a novel method for high throughput micro-electro-discharge machining (μEDM). This method eliminates the need for numerical control (NC..

Tandem Mass Spectrometry Filter with Improved Resolution

Researchers at the University of British Columbia have developed a method of operating a mass spectrometer with multiple mass analysis stages operating in tandem to provide improved resolution. The mu..

Real Time Monitoring of Power Grid Stability

This technology provides a novel method to estimate power grid stability by measuring in real time, with a single time-point, instabilities and drift at a power grid node, such as a power substation. ..

LOW-POWER PASSIVE SIGMA-DELTA CONVERTER

A low-power passive S - D converter with a built-in mixer has been developed for direct conversion of IF signals. Low-power consumption is achieved by adopting a passive loop filter for the S - D conv..

DC or LOW FREQUENCY SUB-ATTOFARAD (<10-18 F) CAPACITANCE MEASUREMENT CIRCUIT

The University of Waterloo has developed a novel capacitance based measurement technique and associated circuitry that increases capacitance resolution sensitivity by three orders of magnitude to the ..

REGENERATIVE SNUBBER CIRCUIT FOR HIGH-POWER DC\DC BOOST CONVERTERS

Advanced transportation technologies, such as hybrid-electric vehicles, battery-electric vehicles, and fuel cell vehicles, rely on high-power DC/DC converters to interconnect and manage their power sy..

Imaging Objects in a Dissipative Medium by Nearfield Electromagnetic Holography--3D Metal Detector

A unique time-domain electromagnetic system and data processing technique which, using low frequency electromagnetic fields, can localize, in three-dimensions, the position of buried metallic objects ..

Magnetometer Based on an Oscillator Made With Magnetorestrictive Material

There is an increasing need for miniature magenetometers for mapping magnetic fields in space and in industrial and environmental applications. The trend has been constantly toward smaller size, lower..

Various Networked and Distributed Configurations for Power Distribution Protection System

The Johns Hopkins University Applied Physics Lab has developed technology for protective systems for power switchboards. It continuously monitors the physical environment of the switchboards for arcin..

Battery Health Monitor

Existing methods of battery health monitoring often rely on periodic testing and therefore miss long time intervals when a battery’s health can be degraded. Many battery systems are connected togeth..

Laser Serration of Envelopes for Efficient Liberation of Enclosed Pathogens and Directed Release into Collectors

The U.S. mail system has proved to be a vulnerable target for sabotage by including a toxic substance in a plain envelope. The Johns Hopkins University Applied Physics Laboratory has a concept for the..

Advanced Thin Flexible Microelectronic Assemblies and Methods for Making Same

Reseachers at the Johns Hopkins University Applied Physics Laboratory (APL) have developed advanced processes to produce thin, flexible microelectronic assemblies that are 100-mm (0.004-inch) thick, o..

Data analysis software for data collected by Driver Monitoring System

According to the Administration on Aging, persons 65 years or older numbered 35.6 million in 2002. They represented 12.3% of the U.S. population and are expected to grow to be 20% of the population by..

Efficient Ultra Low Voltage Regulation Electronics

Rad-hard Ultra Low Power (ULP) flight components operate at voltages as low as 0.5VDC, significantly reducing system dynamic power losses which are proportional to power supply voltage squared. Dedica..

Rad Hard, Low Power Galvanically-Isolated Signal Buffer

Inventors have designed and fabricated a 4-channel digital isolation buffer in a 0.5pm Silicon-on-Saphire (SOS) technology, by taking advantage of the isolation properties of the SOS substrate. The in..

Long Coherent Integration of Deep-fade GPS Signals During the Handover Word (HOW) Portion of the GPS Message

The Johns Hopkins University Applied Physics Lab has developed an invention that uses the predictability of the GPS Handover Word (HOW) to simplify prediction of GPS message bits. It allows long, cohe..

Authentication of Injection Molded Epoxy-Based Electronics Packages Using Molecularly Imprinted Taggants

The international market place has been flooded with a variety of counterfeit merchandise. The use of counterfeit can compromise the function of a critical piece of equipment and result in failure and..

Driver Monitor System

According to the Administration on Aging, persons 65 years or older numbered 35.6 million in 2002. They represented 12.3% of the U.S. population and are expected to grow to be 20% of the population by..

Method and Apparatus for Accurate, Digital Monitoring a Receiver Frequency via Telemetry without the Need for Calibration of Analog Components

The novel feature of this invention is that it uses digital hardware that is added to the receiver for the specific purpose of monitoring the frequency and then it produces a calibrated value of the r..

Lorentz Force Assisted MEMS-based Microwave Switch

A Lorentz force assisted microelectromechanical switch is provided which is configured to have a capacitive switch and an electrical conductor placed in transversely extending electric and magnetic fi..

Bit Depth Reduction for Analog to Digital Conversion in Global Positioning System Receivers Operating in High Jamming Environments

Disclosed is a system and method for reducing a bit-depth requirement for an A/D converter in a GPS receiver having an antenna for receiving an analog input signal and a low noise amplifier for amplif..

Weak Signal and Anti-jam GPS Receiver Using Full Correlation Grid

Global Positioning Systems (GPS) are widely utilized in both commercial and military applications. Along with the increased reliance upon the GPS comes a growing need to provide more accurate and reli..

The Time of Flight System on a Chip (TOF Chip)

This single mixed analog-digital, low-power, precise time interval measurement chip will be a valuable enabling technology for next-generation small spacecraft, particularly for spacecraft constellati..

Optimal Ensembling of Ultrastable Crystal Oscillators

Conventional systems, such as satellite systems, disadvantageously use complex and expensive atomic oscillators, such as rubidium or cesium oscillators, to provide precise and stable reference frequen..

Universal Adapter for Integrated Circuit

A semiconductor die adapter assembly includes a semiconductor die cut from a wafer, the die having an active surface including bond pads. A die adapter, also having bond pads, is bonded to the semicon..

Ka-Band Digital Phase MMIC

broadband, 4-bit MMIC phase shifter for use in a phased array antenna is provided. The four bit selectable phase shifter for use in a phased array antenna of the present invention, which selectably c..

Digital Video Authenticator

Researchers at the Johns Hopkins University Applied Physics Laboratory (JHU/APL) have developed a system that can accurately detect digital video that has been tampered with. The JHU/APL system is des..

Area of Interest Selection Circuit for Image Sensor and/or Position Sensing Detector

Many proposed missions depend on the use of “micro-satellite” constellations to make simultaneous measurements at different orbital locations. Numerous new technologies are required to make the mi..

Single Event Upset Immune Logic Family

The JHU/APL technology contains a collection of circuits implementing static CMOS logic gates that provide Single Event Upset (SEU) immunity. SEU immunity is obtained by building each logic element wi..

Dual Frequency Scanning Harmonic Radar for Detection and Identification of Concealed Metallic Weapons and Electronics

A radar system that can rapidly detect and reliably identify targets such as concealed weapons and electronics. Persons either walking through a fixed portal/doorway or walking or congregating in a fo..

Micro-Machined Metal-Insulator-Semiconductor Field Effect Transistor (MISFET) with an Air-Gap Insulating Layer

A process for fabricating a semiconductor device having, for example, a MISFET transistor, is provided which comprises the steps of (a) providing a partially fabricated semiconductor device comprising..

Electronic Safety for Semi-Automatic Handgun

Nearly all Semi-Automatic Handguns use a slide to load a round into the chamber from the magazine. If this action can be stopped, the gun cannot be fired. This invention discusses an automatic syst..

Anti-Backfeed Circuit Breaker

External circuit breaker boxes and associated wiring, while allowing the user to select circuits to be powered by the generator using existing circuit breakers and existing house wiring, are costly. A..

Rechargeable Shoe

The invention comprises a means for generating energy while walking or running for storage in a rechargeable battery. One embodiment uses lever arm movement in the heel of a shoe resulting from normal..

Chip Technology

The ability to perform in situ testing and characterization of both integrated circuits and their interconnecting substrates in complex multi-chip packaging structures is becoming increasingly importa..

Automatic Battery Power Switch

An automatic battery power switch circuit that switches from n to n+m cells, where n and m are integers, in a battery. The circuit delivers a relatively constant voltage over a wide range of load curr..

Microelectromechanical (MEMS)-Based Magnetostrictive Magnetometer

A microelectromechanical (MEMS)-based magnetostrictive magnetometer that uses, as an active element, a commercial (001) silicon microcantilever coated with an amorphous thin film of a giant magnetostr..

Integrated Power Source

self-contained, small, lightweight, portable, renewable, modular integrated power source. The power source consists of solar cells that are laminated onto a solid-state polymer battery, which in turn..

Video-Centroid Chip

An analog, single integrated circuit for providing centered video images. A light detector array that can be, a CCD or an array of phototransistors or silicon retinas, is scanned out to provide a vide..

Optical-Digital Method and Processor for Pattern Recognition

An automatic battery power switch circuit that switches from n to n+m cells, where n and m are integers, in a battery. The circuit delivers a relatively constant voltage over a wide range of load curr..

Adaptable Multiport Test Fixture System

During the process of manufacturing an electric circuit or before placing the circuit in operation, the circuit usually is tested. Typically, the circuit is mounted in a custom fabricated test fixture..

Electron Density Storage Device and Method Using STM

An apparatus and method were developed that permit the transmission of secure communications. The invention uses quantum mechanical effects to establish nonlocal correlations between a pair of photons..

Short-Circuit-Proof DIP Test Clip

The invention consists of a connector clip, particularly useful in testing a dual in-line packaged (DIP) integrated circuit (IC), comprising a plurality of connector elements which are in contact with..

Accumulating Arithmetic Memory Integrated Circuit

An accumulating arithmetic memory (AAM) integrated circuit or AAM chip that includes a set of accumulators or registers was developed. Once an accumulator is selected, e.g., by using a look up table, ..

Method for Detection of Weak Links in the Current Path of Electrically Continuous Superconductors

Weak links in superconductors are detected by observing the effect of magnetic field modulation on the microwave resistance of superconductors. The phase-detected response to the magnetic modulation c..

Discrete Automatic Gain Control with High Stability, High Speed and Low Distortion

High-speed automatic gain control (AGC) circuitry, capable of use in pulse of CW systems, incorporates hysteresis for improving the stability and distortion characteristics of the AGC. After a gain se..

Computer Aided Design for TE01 Mode Circular Waveguide

Prior work cannot be directly extrapolated to compact, optimized bends, structures with less overmoding, and limited dielectric material selection for high power application in radar and radio communi..

Phase Sensitive Differential Polarimetry Technique and Apparatus

A differential polarimeter is disclosed for detecting changes in optical rotation between a test cell and reference cell. The test cell contains a fluid sample exposed to an analyte specific enzyme; t..

Overmoded Waveguide Elbow and Fabrication Process

The invention provides a process for fabricating a sheathed-helix circular overmoded waveguide bend comprising an inner helical wound insulated wire, a dielectric lining, and an outer conductor layer ..

Apparatus for Winding Wire Onto an Arbor

The invention is a wire-winding apparatus for winding wire about an arbor having a straight or curved center line and having either a circular or nearly circular cross-section. The wire-winding appara..

Air Inlet for Internal Cooling for Overmoded Waveguide

For high power application of overmoded waveguide, applying airflow to the overmoded waveguide either directly or indirectly, through an air inlet, which does not significantly disturb the internal el..

Multiport Rectangular TE10 to Circular TE01 Mode Transducer Having Pyrimidal Shaped Transducing Means

The invention provides a method and device for transducing multiple rectangular TE10 modes to circular TE01 mode. Multiple TE10 modes are transitioned into an intermediate mode, which is transitioned ..

Reconfigurable Induction Coil for Metal Detection

With an estimated 100 million mines and countless millions of acres of land contaminated with unexploded ordnance (UXO) world- wide there is a need for a sensor system and methods that can detect and ..

Variable Damping Induction Coil for Metal Detection

Pulse induction metal detector (PIMD) antennas come in two basic types. First is a single transmit and receiver coil. The second use separate transmitter and receiver coils. Two basic problems exist w..

L and N can not be a member of the same team.

Pulse induction metal detector (PIMD) antennas come in two basic types. First is a single transmit and receiver coil. The second use separate transmitter and receiver coils. Two basic problems exist w..

An Embeddable Corrosion Rate Meter for Remote Monitoring of Infrastructures

Corrosion of infrastructure and fluid containing vessels and pipelines is a continuing situation if the United States for both government agencies and industry. Existing methods, which include implied..

Breakthrough in Voltage-to-Thrust Technology ()

Abstract: In the past, inductive technology has been needed to create thrust, rotational motion, or step an actuator using electricity. This new technology accomplishes these tasks and more by using ..

Low-Cost Brushless DC Motor Rate Sensor (MFS-31143)

Abstract: The new brushless DC motorbased rate sensor addresses the drawbacks associated with other rotation sensor technologies. The mechanical brushes on brush-type tachometers produce electrical a..

Large Area Vacuum Ultra-Violet Sensors (GSC-14777)

Abstract: This is, to the best of our knowledge, a first time report of Pt/n-type GaN Schottky diodes with very large active areas, up to 1cm x 1cm, which exhibit extremely low leakage current at low..

FOIL WOUND INDUCTORS

Foil windings for magnetic circuit elements such as chokes, coils, transformers, and inductors are used in a wide variety of power conversion applications. Foil-wound magnetic devices are particularl..

Photonic Switching Devices Using Light Bullets (TOP1-477)

Abstract: A unique ultra- fast, all-optical switching device or switch is made with readily available, relatively inexpensive, highly nonlinear optical materials, which includes highly nonlinear opti..

Radiant Temperature Nulling Radiometer ()

Abstract: Developed at NASA Stennis Space Center, the radiant temperature nulling radiometer provides high-accuracy, self-calibrating temperature measurement. NASA Stennis’ enhanced technology offe..

High-Efficiency RF Power Amplifier (MFS-0012)

Abstract: Researchers at NASA Marshall Space Flight Center (MSFC) have developed a new power amplifier to convert direct current (DC) electrical power to a radio frequency (RF) signal. By increasing ..

Environmental Barrier Coatings (EBCs) for Ceramic Gas Turbine Components (TOP3-00165)

Abstract: In gas turbine engines, EBCs protect engine components from the volatilization and the resulting recession caused by water vapor.

A Process for Preparing 'Melt-Textured Growth' YBCO High Temperature Superconductors at Temperatures Below the Melting Point of Silver

Description A low temperature melt-textured growth (MTG) process for bulk Yttrium-Barium-Copper-Oxide (YBCO) below the melting point of silver (960 degC). The inventors have been able to melt starting..

Silicon Chip Color Spectrometers: Integrated Microspectrometers for Optical Spectroscopy and General Wavelength Division Management Applications

Description These optical systems span diverse optical microspectrometer and wavelength-division applications. The spectrometers separate optical energy according to wavelength in a manner enabling of..

Method of Using DC Photocurrent Measurements to Sense Wavelength or Color of Light or to Characterize Semiconductor Materials

Description Figure 1. Absorption coefficient versus wavelength for amorphous silicon. The data points were established using the invented method and the dashed line represents approximate values re..

High-Efficiency RF Power Amplifier (MFS-0012)

Abstract: NASA Marshall Space Flight Center developed this technology to reduce the power consumed by S-band microwave power amplifiers, which typically are the largest consumers of the limited power..

Production of Fullerenes Using Concentrated Solar Flux

Technology Description The refrigeration system includes a compressor-pump unit and/or a liquid-injection assembly. The refrigeration system is a vapor-compression refrigeration system that includes a..

Electrochromic Projection and Writing Device

Technology Description A display and projection apparatus includes an electrochromic material and a photoconductive material deposited in tandem used in conjunction with a light filtering means for fi..

Combined Refrigeration System with a Liquid Pre-Cooling Heat Exchanger

Technology Description A compressor-pump unit for use in a vapor-compression refrigeration system is provided. The compressor-pump unit comprises a driving device including a rotatable shaft. A compre..

ELECTRODE ARRAY WITH A FLEXIBLE SUBSTRATE FOR NEUROLOGICAL APPLICATIONS

This electrode array device allows all of the series of very thin electrodes to be in constant contact with the curved surface of the brain because it is made with a flexible, conformable substrate, p..

AXIAL-TORSIONAL EXTENSOMETER FOR DETERMINATION OF MULTIAXIAL PLASTIC DEFORMATION AND DETERMINATION OF FATIGUE FRACTURE UNDER A MODERATELY LARGE STRAIN RANGE

An axial-torsional extensometer has been designed, constructed and tested. This extensometer is suitable for use in the experimental determination of multiaxial plastic deformation and determination o..

LASER-GUIDED DISCHARGE TUBE (LGDT) WHICH CAN BE CONSTRUCTED FROM A WIDE RANGE OF MATERIALS, ELIMINATING THE NEED TO USE ELECTRICAL INSULATOR MATERIALS

The LGDT is a new and unique type of gaseous electric discharge tube because it uses a laser beam to guide (initiate, and/or sustain) an electric current (or electric discharge) through a gas. LGDTs e..

EARLY HASH JOIN

The invention describes a hash-based join algorithm, called early hash join, which can be dynamically configured at any point during join processing to tradeoff faster production of results for overal..

A New Method of Trapping Ions Injected into the Quadrupole Ion Trap and Construction

Abstract (Set) This is a method in which ions formed by matrix-assisted laser desorption/ionization (MALDI) and other methods which form ions outside an ion trap mass spectrometer are then transmitte..

Space Division Multiple Access With a Sum Feedback Rate Constraint

Background For a multiple-input-multiple-output (MIMO) communication system, by exploiting the spatial degrees of freedom, space division multiple access (SDMA) supports simultaneous uplink/downlink c..

RICE: Rapid Interconnect Circuit Evaluator

Background Existing software being used for timing analysis falls into two cateqories: 1) extremely slow and very accurate (e.g., SPICE) or 2) verv fast, inaccurate, and topology-limited. RICE bridges..

Multiple Via Structures for Reliability Improvement of Copper Damascene Interconnects

Background The semiconductor industry is actively developing copper (Cu) damascene structures for on-chip interconnects. Electromigration (EM) is a major reliability concern for copper damascene inter..

Method for Low-Temperature Deposition of Boron Carbo-Nitride as a Barrier and Etch Stop for Copper Interconnect Manufacturing

Invention Description A method of forming boron carbo-nitride layer for use as a barrier and etch stop layer in copper interconnect structures used in integrated circuit manufacturing has been develop..

Improved Oxide Cathodes for Rechargeable Batteries

Background Cordless portable electronic devices are proliferating in our mobile, fast-paced world, and they need better batteries. One way to enhance a rechargeable battery?s capacity, cycle life, and..

Hetero-barrier Tunnel Field-Effect Transistor (HetTFET) for Low Voltage Logic

Background A great challenge facing CMOS is power consumption. Increased energy efficiency is not only important for its own sake but also to allow continued transistor scaling and an associated incre..

Electrostatic Electrochemistry

Background Electrostatic charges produced by the contact of two dissimilar insulator or dielectric materials have been studied for a thousand years. The principles of electrostatics have been instrume..

Analog-to-Digital Conversion Methods and Apparatus Enabled by Active and/or Passive Variable Delay Transmission Lines

Background Technology scaling adversely affects most parameters relevant to analog design, and ADCs are no exception. To achieve a high linearity, high sampling speed, and high dynamic range with low ..

Mutual Inductance Force Sensor – “MIFS” (20084)

Consumers operate numerous devices and machines to assist in daily activities. This requires some form of contact with an interface sensor as to translate the human intent into an electronic response...

Thin Membrane Transducer (22102/23074)

Northwestern´’´s Thin Membrane Transducer (TMT) invention is an ultra sensitive biosensor. The TMT has significant advantages over the cantilevered biosensor – another approach that has been pre..

Biochip Detection System (23072)

The “BioChip” invention electronically detects biomolecules and toxic agents. When a target species chemically binds to the surface of a tiny cantilever probe, the probe deflects and the BioChip e..

VOC Sensor (26062)

The invention is a low power light assisted sensor to detect Volatile Organic Compounds (VOC’s). BACKGROUND: Metal oxide gas sensors must normally operate at high temperatures. This is undesira..

Rare Earth Doped Barium Titanate Thin Film Optical Working Medium for Optical Devices ( 94001)

Rare Earth Doped Barium Titanate Thin Film Optical Working Medium for Optical Devices ( 94001) Patent No-6122429

n-Type Thiophene Semiconductor Devices (20024

This invention demonstrates the use of n-type thiophene semiconducting films in the construction and operation of organic light-emitting diodes (OLED), thin film transistors (TFT), field effect trans..

Commercial-Scale Synthesis of p-type Transparent Conductors (21006

A new process affording a single step route to polycrystalline samples of any delafossite-like (ABO2) material with phase purity has been developed. These materials exhibit luminescence, catalysis, an..

Superconducting Mg-MgB2 and Related Metal Composites and Methods of Preparation (21029)

This invention provides superconducting magnesium diboride (MgB2) materials and methods for their production that overcome present day synthesis limitations. Magnesium diboride has recently been found..

Organic Light-Emitting Diodes and Methods for Assembly and Enhanced Charge Injection (22012)

The integrity of electrode/organic interfacial contact is crucial to the performance and stability of organic light-emitting diodes (OLEDs). This invention addresses the problem by employing a well de..

Group III-V Diluted Magnetic Semiconductor Materials and Related Methods of Formation (22025)

The present invention provides a growth technique to achieve epitaxial, single-phase films of III-V diluted magnetic semiconductors (DMSs) with large Mn concentrations that exhibit ferromagnetic order..

Enhanced Performance of Blue Light Emitting Polymer Diodes via Anode Modification (22103)

Researchers at Northwestern University invented a process that significantly improves Blue polymer light emitting diode (PLED) performance, efficiency, and stability. Blue PLED devices generally requi..

New Hole Transport Layer Materials for Polymer Light Emitting Diodes (23071

Northwestern University researchers invented a new hole transport system for polymer light emitting diodes (PLEDs) with negligible visible light absorption, stability to ITO, solvent resistance and tu..

III-V Ferromagnetic/Nonmagnetic Semiconductor Magnetodiodes For Use In Magnetic Field Sensors, Gaussmeters, and Other Magnetoresistive Devices (25014)

A novel "spintronic" magnetodiode based on a III-V ferromagnetic semiconductor and a III-V nonmagnetic semiconductor heterojunction has been created by Northwestern researchers. The diodes exhibit a l..

Semiconducting Aerogels from Chalcogenido Clusters with Broad Applications (27012)

Northwestern chemists have created a novel family of chalogenide based hydrogels which readily afford a wide range of new aerogels. The materials exhibit high surface area, broad porosity range and na..

Method of Making Silver Vanadium Oxide Material Useful as a Battery Cathode (27115/27058)

Ag2V4O11 (SVO) and Ag4V2O6F2, (SVOF) are important cathode materials for medical battery applications such as defibrillators. A one-step process has been developed affording crystalline SVO and SVOF ..

SMOFC Battery Cathode (27151/27059

A novel battery cathode composition having a higher discharge capacity available from silver reduction at a potential above 3V compared to that of the current standard medical battery cathode SVO mate..

Controlled Nanoscale Doping of Transparent Conducting Oxides by Focused Ion Beam Implantation (28091)

An effective method for the spatially-controlled writing of embedded, optically transparent, electrically conducting oxide nanowires and other patterns via focused ion beam implantation into highly re..

Nonlinear Muscle-Like-Compliant Controller ( 97068

This controller can provide compliance capability without using force sensors. It also possesses non-linear damping property and adapts to a wide range of loads without having to adjust the gain. ..

Simulated Environment to Prototype Manufacturing Concepts & to Train Personnel (20023

This invention presents a uniquely simulated environment to prototype manufacturing concepts, to train personnel, to design new systems, and to secure operator feedback concerning prototype design. Th..

Electrical Damping for Haptic Displays (24093/24111

The invention applies electrical damping in order to improve haptic display performance. A challenge of virtual environments is that a haptic system can become unstable near the "virtual walls," where..

Programmable Parts Feeder (25111)

The invention is a vibratory device that programmably conveys, sorts, orients, and feeds multiple parts simultaneously, in parallel. To the best of our knowledge, it is the only commercially viable vi..

Method of Doping Barium Titanate Ferroelectric Oxide ( 94001A

In this invention, thin film modulators are made with ferroelectric materials that offer higher bandwidth and lower voltage operations compared to lithium niobate and indium phosphide. U. S. Paten..

Oriented Niobate Ferroelectric Thin Films for Electrical and Optical Devices ( 94019DIV

Thse films can be used in electronic, electro-optic and frequency doubling components. U. S. Patent No. 6,208,453

Thin Film Electro-Optic Modulator for Broadband Applications ( 97028

This invention addresses thin film, BaTiO3 channel waveguide structures with the potential for traveling-wave electro-optic modulator applications. U.S. Patent No. 6,118,571

Optimizing Launch Points for Dispersion-Managed Solitons ( 97054)

: Researchers at Northwestern have developed an effective analytic tool for predicting the behavior of dispersion-managed solitons, and a dispersion map design configuration specially optimized for WD..

Tunable Fiber-Optic Parametric Oscillator ( 98091)

This invention relates to a tunable FOPO which employs a nonlinear-fiber Sagnac interferometer as a parametric amplifier. U. S. Patent No. 6,501,591

Oxide Thin Films and Composites and Related Methods of Deposition ( 99070/99020)

The synthesis of epitaxial functional oxide thin films on silicon is required for large-scale integration of microelectronic, microwave, and optical devices. This invention provides deposition techniq..

Layer-by-Layer Self-Assembly of Large Response Molecular Electro-Optic Materials by a Desilylation Strategy (20010)

A new efficient "one-pot" synthesis of organic self-assembled superlattices having excellent electrooptic response properties. The method provides thermally and photochemically robust thin films that..

High Performance Self-Assembled Electro-optic Materials and Modulating Devices (20042)

Electric field poled polymers are currently used to fabricate organic based modulators. The present invention provides a chemical process, employing self-assembly molecules to create the electro acti..

Refractive Index Tuning of Siloxane-Based Electro-Optic Self-Assembled Superlattices (21001)

A “wet-chemical” process affording molecule-based electro-optic (EO) material refractive index tuning in self-assembled superlattice (SAS) organic structures. The process retains essential microst..

Commercial-Scale Synthesis of p-type Transparent Conductors (21006

A new process affording a single step route to polycrystalline samples of any delafossite-like (ABO2) material with phase purity has been developed. These materials exhibit luminescence, catalysis, an..

A System to Prevent Power Outages in Optical Transmission Lines (21073)

This breakthrough method provides the only known practical means by which to predict power outage probabilities and bit-error rates in fiber optic lines caused by "polarization mode dispersion (PMD)."..

Organic Light-Emitting Diodes and Methods for Assembly and Enhanced Charge Injection (22012)

The integrity of electrode/organic interfacial contact is crucial to the performance and stability of organic light-emitting diodes (OLEDs). This invention addresses the problem by employing a well de..

Efficient, Compact Device for All-Optical Processing (22091)

The invention is a series of devices, including an optical parametric oscillator, that are compact and efficient because they exploit phenomenon of a new kind of commercially available microstructure ..

Enhanced Performance of Blue Light Emitting Polymer Diodes via Anode Modification (22103)

Researchers at Northwestern University invented a process that significantly improves Blue polymer light emitting diode (PLED) performance, efficiency, and stability. Blue PLED devices generally requi..

Vapor Deposited Electro-Optic Films Self-Assembled Through Hydrogen Bonding (22107/22065)

Northwestern researchers created a new family of designed molecular chromophores that afford acentric films essential to non-linear electro-optic applications. These novel materials exhibit excellent ..

New Hole Transport Layer Materials for Polymer Light Emitting Diodes (23071

Northwestern University researchers invented a new hole transport system for polymer light emitting diodes (PLEDs) with negligible visible light absorption, stability to ITO, solvent resistance and tu..

Low-Voltage Organic Electro-Optic Modulators Using Transparent Conducting Oxides As Electrodes (23080)

A novel organic electro-optic modulator using transparent conducting oxide electrodes has been created by Northwestern University scientists. The modulator functions at significantly lower switching v..

Individually Addressed Large Scale Patterning of Conducting Polymers by Localized Electric Fields (23097)

A new multiplexed and parallel polymer patterning process, with individual addressability, via electropolymerization within the gap of electrodes has been developed at Northwestern University. The tec..

Batio3 Thin Film Waveguides And Related Modulator Devices (24060)

A low-voltage, wide bandwidth, strip-loaded BaTiO3 thin film electrooptic amplitude modulator for use in high-speed optical communication networks has been created by Northwestern researchers. Broadba..

Nanoscale Self-Assembled Organic Dielectrics for Ultra-Low Voltage High-Speed Electronic Devices (24062)

Self-assembling siloxane fabrication of extremely thin nanostructurally ordered, pinhole-free, ultra-high-capacitance/low leakage organic dielectrics has been achieved by Northwestern University scien..

FOCUS Focalized Carrier Augmented Sensor (25015

The invention is a novel avalanche-free single photon detector in the short infrared range that is suitable for ultra-sensitive high-density infrared imaging arrays. The pixel element is low voltage a..

Intercalated Metal Oxide Superlattice Dielectrics (25092)

A family of intercalated metal oxide self-assembled superlattice dielectrics providing extraordinary insulative and capacitance properties for thin film transistor and organic electronic devices. A..

Catalytic Synthesis of High Energy Density Nanocomposite Dielectric Materials (26136)

process affording homogeneously dispersed ceramic nanoparticles within the matrix of processable, high-strength polymers. The high energy density polymer-metal oxide composites provide effective high..

Organic Light-Emitting Diodes and Methods for Assembly and Emission Control (99027)

This invention presents a new route to the fabrication of multilayer heterojunction devices useful for large and small, multicolored display applications by means of molecular self-assembly technique..

Scanning Near-Field Ultrasound Holography (SNFUH) (23061)

The invention is a revolutionary approach which provides non-invasive nanoscale imaging capabilities for deeply buried and embedded structures in physical sciences, engineering systems as well as biol..

Diamond Probes And Method of Making (24098)

The invention is an ultra-hard, ultra-sharp diamond probe and tip for applications such as AFM and Nano-Lithography. A single stage fabrication process integrates tip and probe chip body as a single c..

Cryogenic Variable Temperature Scanning Tunneling Microscope (24108)

An advanced cryogenic variable temperature ultrahigh vacuum (UHV) scanning tunneling microscope (STM) has been developed at Northwestern University. Incorporation of a new design and materials provide..

FOCUS Focalized Carrier Augmented Sensor (25015)

The invention is a novel avalanche-free single photon detector in the short infrared range that is suitable for ultra-sensitive high-density infrared imaging arrays. The pixel element is low voltage a..

Controlled Nanoscale Doping of Transparent Conducting Oxides by Focused Ion Beam Implantation (28091)

An effective method for the spatially-controlled writing of embedded, optically transparent, electrically conducting oxide nanowires and other patterns via focused ion beam implantation into highly re..

Carbon Dioxide Capture by Aqueous Piperazine

Background The conventional process for CO2 absorption/stripping uses aqueous amines such as monoethanolamine (MEA). Piperazine has previously been identified as a very reactive amine. It is an attrac..

A Manual Scan Imaging Sonar

Background Sonar systems of similar application as this invention fall into three categories: single-beam mechanical scan, single-beam hand-held, and multiple-beam hand-held. Existing mechanically sca..

An Electrochemical Storage Cell Containing At Least One Electrode Formulated From A Fluorophenyl Thiophene Polymer

This present invention relates to a battery or a electrochemical storage cell, 'typically a secondary cell, containing as at least one electrode prepared fromat least one electrically conductive polym..

Carbon/Ceramic Composite Electrodes for Charge Storage Units

The present invention relates to charge storage devices, such as electrochemica supercapacitors and lithium ion intercalation batteries, and the method of preparation thereof. In particular, the inven..

Polarization Phase-Based Method and Apparatus for Material Classification

This novel invention is an important advance for two distinct environments in which it is necessary to differentiate between electrically conducting and nonconducting materials - - inspection processe..

A Completely Polymeric Charge Storage Device and Method for Producing Same

This invention relates to the fabrication of a quasi-solid state charge storage device capable of being repeatedly charged and discharged to yield high capacities. The storage device has one or more e..

Ultra low loss waveguide for broadband terahertz radiation

This invention is a device which transports terahertz radiation over long distances with much less attenuation than current technology allows. The device incorporates a new concept for guiding THz rad..

Metal Coated Magnetic Nanoparticles (MCMNP) and their application to chemical/biochemical detection

This technology is a new synthetic method for manufacturing MCMNP. MNMNP are an enabling component of optical spectroscopic techniques, which are currently limited because of their relative susceptibi..

Fast wavelength tuning technique for external cavity lasers

This invention is a novel external cavity – quantum cascade laser (EC-QCL) architecture. The current state of the art uses mechanical translation and rotation stages to synchronously control EC leng..

Resonant optothermoacoustic detection of optical absorption

Technology This technology is an improvement to optothermal spectroscopy and photoacoustic spectroscopy (PAS). The proposed method of resonant optothermoacoustic detection (ROTA) is based upon the fo..

Modulation cancellation method (MOCAM) in modulation spectroscopy

Technology The invention is a new process to acquire analytical spectral data using two optical sources. It is based on balancing the optically excited response of the analyzed media for certain cond..

Piezo activated mode tracking system for widely tunable mode-hop free external cavity mid-IR lasers

Technology Rice researchers have developed a novel architecture of a widely tunable external cavity lasers (primarily in mid-Infrared), which allows performing continuous mode-hop free wavelength sca..

Selectivity Enhancement in Photoacoustic Gas Analysis via Phase-sensitive Detection at High Modulation Frequency

This invention is a new spectroscopic method of distinguishing molecular species with overlapping absorption spectra. Spectroscopic distinguishing between two species having overlapped optical absorpt..

Synchronized Computer Control for Pulsed Quantum Cascade Laser Frequency Scanning

Technology Professor Frank Tittel and Dr. Anatoliy Kosterev, at Rice’s Quantum Institute, have developed a tool for flexible and reproducible control of pulsed quantum cascade (QC) laser frequency ..

A Method for Measurement of Pipe Wall Thickness using Magnetic Flux Leakage Signals

The proposed technique uses magnetostatic Maxwell's equations to model the magnetic fields associated with the magnetizing device and the magnetized pipe. Given certain geometric and magnetic paramete..

Sensor Elements for Aqueous Samples (SEAS)

Chemical sensor arrays are low cost, compact, robust and versatile alternatives to large analytical tools and hence drive the need to rapidly fabricate reusable chemical sensor arrays for simultaneous..

Temporally Addressable Biochemical Sensor Arrays

Chemical sensor arrays are low cost, compact, robust and versatile alternatives to large analytical tools and hence drive the need to rapidly fabricate reusable chemical sensor arrays for simultaneous..

CMOS Optical Detectors and Lock-In Amplifiers Used for Detection of Emission from Sensor Array Platforms

Chemical sensor arrays are low cost, compact, robust and versatile alternatives to large analytical tools and hence drive the need to rapidly fabricate reusable chemical sensor arrays for simultaneous..

Low Power Solid-State Sensor Device

This invention describes the design of a novel sensor to quantify molecular Oxygen (O2) based entirely on solid-state electronics. A derivative compound of Ruthenium II has been found to exhibit lumin..

Novel Polarimetry Scheme to Monitor Phase-polarization Characteristics of Light Under Surface Plasmon Resonance Biosensing

Surface Plasmon Resonance (SPR) sensor technology has been commercialized rapidly as a tool for bimolecular interaction analysis, drug discovery and life science research. However, phase detecting tec..

Holographic formation of periodic polymeric photonic bandgap structures for visible to IR wavelengths

Chemical and biological sensor developers have held an interest in nanoscale construction of periodic structures. Numerous optical fiber products that utilize nanoscale periodic etching are available ..

Diversified Chemical Responses from a Single Chemical Sensor

Chemical sensor arrays are low cost, compact, robust and versatile alternatives to large analytical tools and hence drive the need to rapidly fabricate reusable chemical sensor arrays for simultaneous..

Chemically Responsive Nanosensors with Integrated Light Sources

Employing xerogel based sensor arrays in microdot form, wherein recognition chemicals (luminophores) are sequestrated, for detection and quantification of multiple analytes is described earlier in tec..

Tailored Pins for High Density Microarray Production

Chemical sensor arrays are low cost, compact, robust and versatile alternatives to large analytical tools and hence drive the need to rapidly fabricate reusable chemical sensor arrays for simultaneous..

Diverisfied Xerogel-Based Sensors to Improved Analyte Detection and Quantification

Chemical sensor arrays are low cost, compact, robust and versatile alternatives to large analytical tools and hence drive the need to rapidly fabricate reusable chemical sensor arrays for simultaneous..

In-Situ Stress-Strain Sensor

This invention describes a technology that provides a new class of strain/stress sensors. The sensors are short fiber composites. They provide a reversible electrical response to strain/stress applica..

Calibrated Low-Loss Phase Shifter with Negative Resistance Circuit and Sigma-Delta PLL for Multiple-Antenna Receivers

Introduction Variable Phase Shifters are used in many applications such as adaptive smart-antenna receivers. In adaptive antenna receivers, antenna paths are linearly combined in an RF stage after bei..

Application of Grating Light Reflection Spectroscopy in Analytical Sensors

Introduction There are a number of methods for measuring bulk fluid compositions in statics and flow by visible light reflection characteristics from the optically inhomogeneous wall of a vessel. Surf..

Method of Detecting, Characterizing, and Quantifying Bulk, Light-Element Materials Using High-Energy, Penetrating X-Rays

Introduction X-rays have long been used in the characterization of a wide variety of materials. However, conventional techniques for dealing with light-element (or low-Z) materials, such as those cont..

Crosslinkable Hole Transporting Materials for Organic Lightemitting Diodes

Introduction High-performance organic or polymer light-emitting diodes comprise multilayer configurations having hole-transporting, emissive and electron-transporting layers to balance the injection a..

Design of Thermal Interface Material Based on High Temperature Shape Memory Alloy for Connecting Two Thermoelectric Legs

Introduction Efficient heat management is crucial for electronics to optimize performance and to avoid premature component deterioration. An area of primary concern is at the interface of adjoining th..

Design of Active Materials and Structures based on Composites of Shape Memory Alloy and Shape Memory Polymer

Introduction Shape memory alloys (SMA) and shape memory polymers (SMP) have shown tremendous promise for a wide variety of applications because of their ability to “remember” a previous state when..

Smart Ladder

Introduction A leading cause of worker injury in the fruit tree industry involves orchard ladder stability and the level of awareness of the user when climbing and dismounting the ladder. Due to cultu..

Application of Grating Light Reflection Spectroscopy in Analytical Sensors

Introduction There are a number of methods for measuring bulk fluid compositions in statics and flow by visible light reflection characteristics from the optically inhomogeneous wall of a vessel. Surf..

Safe last step

Introduction A common cause of injury among orchard workers in Washington state occurs when the user dismounts the ladder. The user often cannot accurately gauge the last step of the ladder because th..

Electric Microcontact Printing

Summary This invention has utility in data storage and in preparing surfaces to receive other materials in specific predetermined patterns, such as in nanoxerography. A variant of a microcontact-print..

Vapor Deposition of Silica Nanolaminates

Summary This invention concerns a very efficient atomic layer deposition (ALD) method to make extremely smooth and highly conformal silica thin films with excellent step coverage. As microelectronic c..

Microlens for Projection Lithography and Method of Preparation Thereof

Summary This invention claims a lithographic technique that can inexpensively produce simple, repetitive micropatterns over large areas of at least several square centimeters. It uses an illuminated a..

Microscale Electromagnetic Device

Summary This invention concerns devices and methodology to control the positioning and movement of magnetic and non-magnetic nanoparticles in a fluid with nanometer precision. The devices allow for th..

Highly Conformal Tungsten Nitride Thin Films

Summary The invention describes a method of producing a uniform, smooth and conformal coating of tungsten nitride, synthesized by atomic layer deposition (ALD). The silver-colored coating (or film) is..

Nanoscale Electrically Driven Lasers

Summary This invention is the first demonstration of an electrically driven nanoscale laser. A CdS nanowire, comprising a Fabry-Perot cavity, in contact with an electrode distributed along its length ..

Atomic Layer Deposition Using Metal Amidinates

Summary This invention relates to materials and processes for d eposition of conformal films containing metals on solid substrates. Examples include copper, cobalt and iron metals or their oxides or n..

Water-Soluble Sacrificial Layers for Surface Micromachining

Summary Sacrificial layers are temporary structures used as substrates on which other permanent structures are formed and then the layer is etched away freeing the permanent structure. They are ubiqu..

Active Optical Antennas

Summary Background Optical antennas are single or coupled metallic nanoparticles in which optical excitation of surface plasmons can produce very high intensities in the optical near field. The field ..

Controlled Synthesis of Millimeter-Long Silicon Nanowires with Uniform Electronic Properties

Summary Background Single-walled carbon nanotubes (SWCNTs) and semiconducting nanowires (NWs) are attractive building blocks for fabricating numerous functional nanodevices such as FETs, light emit..

General Synthesis and Properties of Hetero-Branched Nanostructures

Summary The bottom-up assembly of nanostructures from individual building blocks offers distinct advantages over traditional top-down fabrication techniques including greatly simplified and cost-effec..

Improved Metal Complex Chemical Precursors for Atomic Layer Deposition (ALD) and Chemical Vapor Depostion (CVD) using Bicyclic Guanidines

Summary Continued improvements in semiconductor technologies rely heavily on advanced material compositions such as high-k dielectrics, low-k dielectrics, and electrically conductive metal nitrides. T..

POVM Receiver for Quantum Cryptography

Summary Quantum cryptography relies on the impossibility of ascribing definite values to non-communicating variables in order to assure secrecy of communication. Theoretical and experimental efforts i..

Using Electro-magnetically Induced Transparency in Photonic Crystal Cavities to

Summary This invention describes a photonic crystal system which uses electro-magnetically induced transparency (EIT) as the non-linear medium in photonic crystal cavities to obtain devices of unprece..

Production of Digitized Stereoscopic Polarizing Images by Inkjet Printing

Summary The Technology The Stereo Imaging Research Group developed methods, materials and applications for stereoscopic hardcopy. The group's StereoJet process forms polarizing images by inkjet pri..

An Ultra Low Power System Architecture for Sensor Network Applications

Summary Ultra-low-power chip for sensor network applications Application and Benefits: Wireless sensor networks (WSNs) are used in a wide variety of applications including environmental monitoring..

Controlled Synthesis of Millimeter-Long Silicon Nanowires with Uniform Electronic Properties

Summary Background Single-walled carbon nanotubes (SWCNTs) and semiconducting nanowires (NWs) are attractive building blocks for fabricating numerous functional nanodevices such as FETs, light emit..

Portable and Inexpensive Chemical and Biological Sensors

Summary The broadly tunable quantum cascade laser (QCL) described in this invention enables the production of a small, portable chemical and biological sensor that can detect a range of molecules with..

Production of Digitized Stereoscopic Polarizing Images by Inkjet Printing

Summary The Technology The Stereo Imaging Research Group developed methods, materials and applications for stereoscopic hardcopy. The group's StereoJet process forms polarizing images by inkjet pri..

Coating Methods and Compositions for Production of Digitized Stereoscopic Polari

Summary The Technology The Stereo Imaging Research Group developed methods, materials and applications for stereoscopic hardcopy. The group's StereoJet process forms polarizing images by inkjet pri..

Portable and Inexpensive Chemical and Biological Sensors

Summary The broadly tunable quantum cascade laser (QCL) described in this invention enables the production of a small, portable chemical and biological sensor that can detect a range of molecules with..

POVM Receiver for Quantum Cryptography

Summary Quantum cryptography relies on the impossibility of ascribing definite values to non-communicating variables in order to assure secrecy of communication. Theoretical and experimental efforts i..

Spatial Light Modulator

Summary This is a fluidic all-optical switch that alters the path of a light beam by controlling the geometry of a reflective surface that is defined by the interface between two fluids. The device ha..

Electric Microcontact Printing

Summary This invention has utility in data storage and in preparing surfaces to receive other materials in specific predetermined patterns, such as in nanoxerography. A variant of a microcontact-print..

A method for Fabricating Optical waveguides and other Optical Devices in Three D

Summary This invention describes a method to directly write optical elements in three dimensions inside a transparent material using an unamplified femtosecond laser. Ultrashort pulses from a laser os..

Vapor Deposition of Silica Nanolaminates

Summary This invention concerns a very efficient atomic layer deposition (ALD) method to make extremely smooth and highly conformal silica thin films with excellent step coverage. As microelectronic c..

Microlens for Projection Lithography and Method of Preparation Thereof

Summary This invention claims a lithographic technique that can inexpensively produce simple, repetitive micropatterns over large areas of at least several square centimeters. It uses an illuminated a..

Highly Conformal Tungsten Nitride Thin Films

Summary The invention describes a method of producing a uniform, smooth and conformal coating of tungsten nitride, synthesized by atomic layer deposition (ALD). The silver-colored coating (or film) is..

Atomic Layer Deposition Using Metal Amidinates

Summary This invention relates to materials and processes for d eposition of conformal films containing metals on solid substrates. Examples include copper, cobalt and iron metals or their oxides or n..

Using Electro-magnetically Induced Transparency in Photonic Crystal Cavities to

Summary This invention describes a photonic crystal system which uses electro-magnetically induced transparency (EIT) as the non-linear medium in photonic crystal cavities to obtain devices of unprece..

Keyboard Having Touch Sensor Keys for Conveying Information Electronically

Summary This invention uses an array of sensors, which enable a human to use his fingers or tongue to convey information electronically. The sensors are arranged to produce signal patterns by respondi..

Magneto-Luminescent Transducer

Summary This invention provides a one step process for reading magnetic data and converting the magnetic digital signal directly into an optical signal. This invention enables an electronic system, wh..

Fully-integrated 2D microelectromagnet coil arrays in silicon for magnetic manipulation and RF imaging of cells and magnetic particles

Summary The invention comprises a novel method and an apparatus to manipulate, segregate, detect and analyze biological samples on a microfluidic CMOS chip. This technique offers sub-micrometer precis..

Asynchronous Circuit Techniques for Memory Error Correction

Summary This invention describes a circuit technique for rapidly and efficiently correcting for read and write data errors in a digital semiconductor memory. More specifically, it involves the design ..

A Self-sustained Soliton Oscillator Utilizing Nonlinear Transmission Lines and Spectrum-preservice Nonlinear Amplification

Summary Background Conventional traveling wave oscillators that require high-speed clock signals generally employ a linear transmission line over which sinusoidal waves are propagated. In such syst..

Nanowire-Based Nonvolatile Memory

Summary This invention concerns a novel non-volatile super dense computer memory. The memory is based on ferrooxide material coated inorganic semiconductor nanowires, such as barium titanate coated si..

Water-Soluble Sacrificial Layers for Surface Micromachining

Summary Sacrificial layers are temporary structures used as substrates on which other permanent structures are formed and then the layer is etched away freeing the permanent structure. They are ubiqu..

Active Optical Antennas

Summary Background Optical antennas are single or coupled metallic nanoparticles in which optical excitation of surface plasmons can produce very high intensities in the optical near field. The field ..

Microscopy Methods and Apparatus for Manipulation and/or Detection of Biological Samples and Other Objects

Summary Invention The invention is an integrated circuit(IC)/microfluidic hybrid system that combines the biocompatibility of microfluidic systems with the programmability of IC chips. The hybrid s..

General Synthesis and Properties of Hetero-Branched Nanostructures

Summary The bottom-up assembly of nanostructures from individual building blocks offers distinct advantages over traditional top-down fabrication techniques including greatly simplified and cost-effec..

Strain Measuring Transducer

Summary A strain-sensing transducer designed for detecting small forces in micro-electromechanical systems (MEMS) and nano-electromechanical systems (NEMS) has been reduced to practice and awarded a p..

Error Correcting Sigma-Delta Modulation Decoding

Summary Conventional sigma-delta analog-to-digital conversion (ADC) systems may be significantly enhanced by using a recently developed novel design approach. The technique involves instrumenting an A..

POVM Receiver for Quantum Cryptography

Summary Quantum cryptography relies on the impossibility of ascribing definite values to non-communicating variables in order to assure secrecy of communication. Theoretical and experimental efforts i..

Spatial Light Modulator

Summary This is a fluidic all-optical switch that alters the path of a light beam by controlling the geometry of a reflective surface that is defined by the interface between two fluids. The device ha..

Electric Microcontact Printing

Summary This invention has utility in data storage and in preparing surfaces to receive other materials in specific predetermined patterns, such as in nanoxerography. A variant of a microcontact-print..

A method for Fabricating Optical waveguides and other Optical Devices in Three D

Summary This invention describes a method to directly write optical elements in three dimensions inside a transparent material using an unamplified femtosecond laser. Ultrashort pulses from a laser os..

Vapor Deposition of Silica Nanolaminates

Summary This invention concerns a very efficient atomic layer deposition (ALD) method to make extremely smooth and highly conformal silica thin films with excellent step coverage. As microelectronic c..

Microlens for Projection Lithography and Method of Preparation Thereof

Summary This invention claims a lithographic technique that can inexpensively produce simple, repetitive micropatterns over large areas of at least several square centimeters. It uses an illuminated a..

Compressed Bloom Filter

Summary A Bloom filter is a simple space-efficient randomized data structure for representing a set in order to support membership queries. Compressed Bloom filters improve performance when the Bloom ..

Microscale Electromagnetic Device

Summary This invention concerns devices and methodology to control the positioning and movement of magnetic and non-magnetic nanoparticles in a fluid with nanometer precision. The devices allow for th..

Production of Digitized Stereoscopic Polarizing Images by Inkjet Printing

Summary The Technology The Stereo Imaging Research Group developed methods, materials and applications for stereoscopic hardcopy. The group's StereoJet process forms polarizing images by inkjet pri..

Highly Conformal Tungsten Nitride Thin Films

Summary The invention describes a method of producing a uniform, smooth and conformal coating of tungsten nitride, synthesized by atomic layer deposition (ALD). The silver-colored coating (or film) is..

Nanoscale Electrically Driven Lasers

Summary This invention is the first demonstration of an electrically driven nanoscale laser. A CdS nanowire, comprising a Fabry-Perot cavity, in contact with an electrode distributed along its length ..

Atomic Layer Deposition Using Metal Amidinates

Summary This invention relates to materials and processes for d eposition of conformal films containing metals on solid substrates. Examples include copper, cobalt and iron metals or their oxides or n..

Using Electro-magnetically Induced Transparency in Photonic Crystal Cavities to

Summary This invention describes a photonic crystal system which uses electro-magnetically induced transparency (EIT) as the non-linear medium in photonic crystal cavities to obtain devices of unprece..

Keyboard Having Touch Sensor Keys for Conveying Information Electronically

Summary This invention uses an array of sensors, which enable a human to use his fingers or tongue to convey information electronically. The sensors are arranged to produce signal patterns by respondi..

Magneto-Luminescent Transducer

Summary This invention provides a one step process for reading magnetic data and converting the magnetic digital signal directly into an optical signal. This invention enables an electronic system, wh..

Nanometer patterning with Ice

Summary Harvard Cases 2331 and 2440 These inventions involve the use of gases directly solidified onto cryogenically cooled substrates to form conformal thin films as resists for lithographically p..

Microfluidic liquid-core, liquid-cladding optical waveguides

Summary Background: Optical detection and spectroscopic analysis are important in a wide variety of systems. Typical methods used for delivery of electromagnetic radiation to the microchannels of m..

Asynchronous Circuit Techniques for Memory Error Correction

Summary This invention describes a circuit technique for rapidly and efficiently correcting for read and write data errors in a digital semiconductor memory. More specifically, it involves the design ..

A Self-sustained Soliton Oscillator Utilizing Nonlinear Transmission Lines and Spectrum-preservice Nonlinear Amplification

Background Conventional traveling wave oscillators that require high-speed clock signals generally employ a linear transmission line over which sinusoidal waves are propagated. In such systems, lin..

A Microconcentrator and Microfilter for Suspensions such as Blood

Summary Background: In healthcare, chemical analysis, environmental testing and other fields it is useful to separate particulate substances that are suspended in a fluid. For example separating ce..

Generation of Monodisperse Particles using Microfluidics: Control over Size, Shape and Composition

Summary The invention constitutes microfluidic methods of forming particles that are substantially monodisperse. The technology builds on the technology disclosed in Harvard Case: 2215 – "Metho..

Bubble Micromixer for Microfluidic Systems

Summary Background: One of the hardest problems to solve in microfluidic systems has been related to the mixing of fluids in a simple manner. The flow in microfluidic systems is generally laminar, ..

Nanowire-Based Nonvolatile Memory

Summary This invention concerns a novel non-volatile super dense computer memory. The memory is based on ferrooxide material coated inorganic semiconductor nanowires, such as barium titanate coated si..

Correlated Mutation Analysis-assisted Chimeric-Engineering/Directed-Evolution of Novel Portein/Enzyme Function

Summary Chimeric protein engineering and directed-evolution are increasingly popular methods to obtain enzymes with desired activities and substrate specificities. Chimeric-engineering goes about this..

Water-Soluble Sacrificial Layers for Surface Micromachining

Summary Sacrificial layers are temporary structures used as substrates on which other permanent structures are formed and then the layer is etched away freeing the permanent structure. They are ubiqu..

A Low-threshold, High-efficiency Microfluidic Waveguide Laser

Summary Background: A common type of optical waveguides has been optical fibers which have been used to guide electromagnetic waves in the optical spectrum. They are mainly used as components in in..

Devices and Methods for Improving the Injection of Liquid Samples in Microfluidic Systems

Summary Principal Investigator: Max Narovlyansky, Graduate student, Department of Chemistry and Chemical Biology, Harvard University Background: Separation and detection of substance in fluids req..

Scanning Dielectrophoretic Tweezers for Particle Manipulation and Sensing

Summary Invention This invention is capable of positioning and sensing particles with intense localized electric fields. In one implementation of the invention, closely spaced electrodes on a tip gene..

Active Optical Antennas

Summary Background Optical antennas are single or coupled metallic nanoparticles in which optical excitation of surface plasmons can produce very high intensities in the optical near field. The field ..

Microscopy Methods and Apparatus for Manipulation and/or Detection of Biological Samples and Other Objects

Summary Invention The invention is an integrated circuit(IC)/microfluidic hybrid system that combines the biocompatibility of microfluidic systems with the programmability of IC chips. The hybrid s..

Nanobioelectronics: Building functional hybrid nanoelectronic/cell circuit elements

Summary Background: The determination of electrophysiological properties is important for understanding signal propagation through individual neurons and neuronal networks as well as muscle tissue. H..

Fastlock Integer/Fractional-N Hybrid PLL Frequency Synthesizer

Summary Settling time is an important performance metric in the phase-locked loop (PLL) frequency synthesizers. To achieve a fast settling time, the PLL loop bandwidth should be increased. In the wide..

An Ultra Low Power System Architecture for Sensor Network Applications

Summary Ultra-low-power chip for sensor network applications Application and Benefits: Wireless sensor networks (WSNs) are used in a wide variety of applications including environmental monitoring..

A Low Cost and Versatile Microbial Fuel Cell

Summary A novel, low-cost microbial fuel cell (MFC) capable of delivering high power, high-efficiency energy. The MFC takes advantage of an easily accessible and ubiquitous carbon source. The organic ..

Controlled Synthesis of Millimeter-Long Silicon Nanowires with Uniform Electronic Properties

Summary Background Single-walled carbon nanotubes (SWCNTs) and semiconducting nanowires (NWs) are attractive building blocks for fabricating numerous functional nanodevices such as FETs, light emit..

Creating Nano-Wrinkles of Virtually any Design on the Surface of Polymers

Summary Creating Nano-Wrinkles of Virtually any Design on the Surface of Polymers Elevator pitch: A new method has been developed at Harvard to design and create virtually any type of nano-wrinkl..

General Approach to Large Area, Controlled Density, Aligned Films of Nanowires and Carbon Nanotubes via Bubble Expansion

Summary Background Central to many proposed electronic device-based applications of nanowires and carbon nanotubes is the development of methods that enable organization over large areas with controll..

STORM - Fluorescence Optical Microscopy with 20 nm Resolution

Summary Elevator pitch: For cell biologists who need to image spatial distributions of proteins, protein-protein and protein-nucleic acid interactions, and structural features of subcellular organelle..

General Synthesis and Properties of Hetero-Branched Nanostructures

Summary The bottom-up assembly of nanostructures from individual building blocks offers distinct advantages over traditional top-down fabrication techniques including greatly simplified and cost-effec..

A Framework for Wavelet-Based Analysis and Processing of Color FIlter Array Images

Summary Background In digital imaging applications, data are typically obtained via a spatial subsampling procedure implemented as a color filter array (CFA). CFA assigns a separate primary color t..

A Novel Color Filter Array Design

Summary Background In digital imaging applications, data are typically obtained via a spatial subsampling procedure implemented as a color filter array (CFA). CFA assigns a separate primary color t..

Portable and Inexpensive Chemical and Biological Sensors

Summary The broadly tunable quantum cascade laser (QCL) described in this invention enables the production of a small, portable chemical and biological sensor that can detect a range of molecules with..

Biological Computers: In Vivo Autonomous Doctors that Diagnose and Treat Disease

Summary Background: The promise of computers made from biological molecules lies in their potential to operate within the biochemical environment of a living organism and to interact with that environ..

A Device for Allocation of Frozen Biological Samples Such as Blood and Tissues

Summary The frozen sample aliquotting instrument will extract aliquots from frozen samples such as plasma and serum without thawing the sample. This represents a new approach for biorepositories that ..

Novel and Efficient Algorithm for Analyzing Large Genotypic and Phenotypic Data Sets in Clinical Trials

Summary Background: Recent technologies such as genotype sequencing and gene expression arrays result in datasets that typically have many more variables than data points. As a consequence, these vari..

DNA Nanotube Liquid Crystals for NMR Structure Determination

Summary Scientists at the Harvard Medical School and the Dana-Farber Cancer institute have discovered how to make DNA nanotubes of a uniform length that will self-assemble into liquid crystals. A solu..

Microfabricated, Chip-Based, Low-Power Optical Tweezers

Summary Since they were first demonstrated over twenty years ago, optical tweezers have been widely used for the manipulation and measurement of many microscale particles, particularly in the biologic..

Slowing Down Light for Enhanced Detection of Biomolecules

Summary Allows for optical sensing and chemical and biological detection using extremely small and highly-sensitive devices. Also allows for fabrication of exceptionally small lasers for applications ..

Method of Thick Specimen Imaging

Summary Conventional light microscopy can be used to visualize fine details of complex structures at or within microns of the surface of histological specimens. To see below the surface of a specimen,..

New high-mobility, air-stable molecules for organic electronics

Summary With traditional silicon microelectronic fabrication facilities costing billions of dollars, alternative technologies offering both affordability and performance have become increasingly attra..

Microfabricated, Chip-Based, Low-Power Optical Tweezers

Summary Since they were first demonstrated over twenty years ago, optical tweezers have been widely used for the manipulation and measurement of many microscale particles, particularly in the biologic..

Low cost method for measuring the frequency content of a signal above the acquisition rate

Summary Markets/Needs Addressed: There is a substantial need in science and engineering to accurately characterize various processes involving fluctuations (e.g. Brownian motion, mechanical vibrations..

3-Dimensional Self-Assembly of mm-scale Components

Summary Self-Assembly of Mesostructures From the Laboratory of George M. Whitesides Department of Chemistry and Chemical Biology This portfolio of patent filings concerns innovative methods of f..

HBPA Photoaffinity Probe

Summary This invention describes a photolabeling reagent p-(4-hydroxybenzoyl)phenylalanine (HBPA) which overcomes many difficulties associated with BPA. Patent protection includes this compound's synt..

Three-Dimensional Self-Assembled Electrical Networks

Summary Self-Assembly of Mesostructures From the Laboratory of George M. Whitesides Department of Chemistry and Chemical Biology This portfolio of patent filings concerns innovative methods of f..

Techniques for high yield synthesis of macrocyclic compounds

Summary Many useful pharmaceuticals, including natural products, have a macrocyclic structure that can be a challenge when exploring synthesis methods. The Walsh Laboratory has discovered a new proces..

Vapor Deposition of Silica Nanolaminates

Summary This invention concerns a very efficient atomic layer deposition (ALD) method to make extremely smooth and highly conformal silica thin films with excellent step coverage. As microelectronic c..

Production of Digitized Stereoscopic Polarizing Images by Inkjet Printing

Summary The Technology The Stereo Imaging Research Group developed methods, materials and applications for stereoscopic hardcopy. The group's StereoJet process forms polarizing images by inkjet pri..

Production of Improved Digitized Stereoscopic Polarizing Images

Summary The Technology The Stereo Imaging Research Group developed methods, materials and applications for stereoscopic hardcopy. The group's StereoJet process forms polarizing images by inkjet pri..

Coating Methods and Compositions for Production of Digitized Stereoscopic Polari

Summary The Technology The Stereo Imaging Research Group developed methods, materials and applications for stereoscopic hardcopy. The group's StereoJet process forms polarizing images by inkjet pri..

Highly Conformal Tungsten Nitride Thin Films

Summary The invention describes a method of producing a uniform, smooth and conformal coating of tungsten nitride, synthesized by atomic layer deposition (ALD). The silver-colored coating (or film) is..

Enabling Nanotube Developments at Harvard University

Summary A suite of four technologies has been developed by Roy Gordon, Charles Lieber, and Jene Golovchenko at Harvard University involving carbon nanotubes which allow for a multitude of applications..

Atomic Layer Deposition Using Metal Amidinates

Summary This invention relates to materials and processes for d eposition of conformal films containing metals on solid substrates. Examples include copper, cobalt and iron metals or their oxides or n..

Methods for Coating Nanotubes and Devices Produced by such Methods

Summary Micro- and nanoelectronics based on semiconductor carbon nanotubes (CNTs) require methods of controlling their properties and of preserving those properties once gained. The inventors have sho..

Nanometer patterning with Ice

Summary Harvard Cases 2331 and 2440 These inventions involve the use of gases directly solidified onto cryogenically cooled substrates to form conformal thin films as resists for lithographically p..

A Microconcentrator and Microfilter for Suspensions such as Blood

Summary Background: In healthcare, chemical analysis, environmental testing and other fields it is useful to separate particulate substances that are suspended in a fluid. For example separating ce..

Generation of Monodisperse Particles using Microfluidics: Control over Size, Shape and Composition

Summary The invention constitutes microfluidic methods of forming particles that are substantially monodisperse. The technology builds on the technology disclosed in Harvard Case: 2215 – "Metho..

"'Armored"' Bubbles and Droplets

Summary Background: Colloidal particles absorbed on liquid interfaces have long been reported to stabilize emulsions and foams. Recently, individual droplets densely covered with small particles ha..

Nanowire-Based Nonvolatile Memory

Summary This invention concerns a novel non-volatile super dense computer memory. The memory is based on ferrooxide material coated inorganic semiconductor nanowires, such as barium titanate coated si..

Water-Soluble Sacrificial Layers for Surface Micromachining

Summary Sacrificial layers are temporary structures used as substrates on which other permanent structures are formed and then the layer is etched away freeing the permanent structure. They are ubiqu..

Lift-off Patterning Processes Using Solid-Condensed-Gas Layers As Resists

Summary Harvard Cases 2310 and 2440 These inventions involve the use of gases directly solidified onto cryogenically cooled substrates to form conformal thin films as resists for lithographically p..

ALD Coaxially Coated Carbon Nanotubes as Transistors

Summary Single Walled Carbon Nanotubes (SWCNTs) have remarkable electrical and optical properties that have not yet been extensively commercialized because of difficulties making robust and high quali..

Array of Micro Differential Scanning Calorimeters for Combinatorial Studies

Summary Differential scanning calorimetry (DSC) is a primary technique for measuring the thermal properties of materials. A typical DSC system requires relatively large amounts of test material, makin..

Selective Sealing of Porous Dielectric Materials

Summary As the sizes of microelectronic ICs decrease and metal interconnects become closer together and operating frequencies climb, cross talk between adjacent interconnects negatively affects the ov..

General Synthesis and Properties of Hetero-Branched Nanostructures

Summary The bottom-up assembly of nanostructures from individual building blocks offers distinct advantages over traditional top-down fabrication techniques including greatly simplified and cost-effec..

Improved Metal Complex Chemical Precursors for Atomic Layer Deposition (ALD) and Chemical Vapor Depostion (CVD) using Bicyclic Guanidines

Summary Continued improvements in semiconductor technologies rely heavily on advanced material compositions such as high-k dielectrics, low-k dielectrics, and electrically conductive metal nitrides. T..

Basic Soft Lithography/Microcontact Printing

Summary These patents and applications cover the basic techniques of soft lithography and microcontact printing. They allow one to pattern a surface, with micrometer precision, with SAMs (Self-Assembl..

Process for Structural Alteration of Selected Material ("Micro-Engraving")

Summary This invention is comprised of methods and apparatus required to record and read-out a two- or three- dimensional, information-bearing image (pattern) inside a transparent material, with sub-m..

Transformation of a Semiconducting Nanowire into a Conducting Nanowire in a Controllable Way

Summary This invention describes a nanowire that changes from a semiconductor to a conductor along its length and a method of making it. The method involves reacting a semiconductor nanowire with a me..

Cooling System for High Power Diode Laser Bar

Introduction There are currently a number of approaches being used to package (cool) high power laser diode bars. The most standard is a simple copper heat spreader below the diode. For high power las..

Miniaturized Fluorescence Analysis System

Introduction Fluorescent dyes are widely used in biological assays to measure the concentration of DNA, RNA, and whole cells, and to measure other properties such as enzyme activity and cell health. A..

Three-Dimensionial Imaging System for Three-Dimensional Velocity and Temperature Measurement

Introduction Turbulent convective heat and mass transfer is one of the most frequently encountered physical processes in applied engineering, and can be inherently difficult to study and to predi..

Multilevel Modulation for Free Space Optical (FSO) Communications and Error Correction Methodology

Introduction Wireless optical links, or free space optics (FSO), enable point-to-point, high-speed communication with low installation costs and high levels of security, and they are especially useful..

Influencing the orientation of chromophores to increase the opticelectric effect

Introduction The electro-optic effect, important for optical communications and quantum optics, occurs in materials that alter their refractive index in the presence of an electrical field. One of the..

Inductive Salinometer with Data Logging Capabilities and Toroidal Sensor

Introduction Salinity levels in seawater are not constant and can vary dramatically both temporally and spatially due to phenomena such as temperature, precipitation, deep-water upwelling, and tidal a..

Crosslinkable Hole Transporting Materials for Organic Lightemitting Diodes

Introduction High-performance organic or polymer light-emitting diodes comprise multilayer configurations having hole-transporting, emissive and electron-transporting layers to balance the injection a..

Application of Grating Light Reflection Spectroscopy in Analytical Sensors

Introduction There are a number of methods for measuring bulk fluid compositions in statics and flow by visible light reflection characteristics from the optically inhomogeneous wall of a vessel. Surf..

Electrospray Evaporative Spray Cooling (EESC)

Introduction As electronic devices get increasingly more powerful and more compact, there are an increasing number of semiconductor components that emit an increasing amount of heat. In order to ensur..

Self-Assembled, Fixed Heterojunctions in Organic Semiconducting Polymers

Introduction Polymer light-emitting electrochemical cells (LECs) are experiencing increasing scientific and industrial interest as solid-state sources of luminescence, thanks to their good electrolumi..

Self-Bias and Digitally Tunable Conduction Angle Circuits for Differential RF Non-linear Power Amplifier Employing Low-Voltage Transistors

Introduction Transistor feature sizes are scaling to smaller and smaller dimensions in order to maximize the level of integration and operating speed of system-on-chip solutions. Unfortunately, lower ..

Connector-Nut Driver

Introduction With the growing importance placed on compactness, it becomes increasingly difficult to install and maintain necessary equipment. This can be especially problematic with connectors, such ..

Charge-based frequency measurement BIST

Introduction Analog and mixed-signal testing is an important issue that affects both the time-to-market and product cost of many modem electronic systems. One key to the success of products with these..

An Electrochromic Smart Window Based on a Three-electrode Configuration

Introduction Electrochromic (EC) polymer films in an electrolyte solution are generally electrochemically switched between states using a standard three-electrode configuration. Devices made from thes..

Auto-Tuning Amplifier

Introduction In wireless communications and wireless products, architectures can be complex and space-consuming due to the need for circuitry that receives signals from multiple bands. System complexi..

Low-Gain Double-Sampling Switched-Capacitor Circuitry

Introduction In the electronic circuit industry, there is a continuing effort to increase circuit speeds as well as decrease circuit device sizes. As circuit designs become more advanced, circuits bec..

Design of Thermal Interface Material Based on High Temperature Shape Memory Alloy for Connecting Two Thermoelectric Legs

Introduction Efficient heat management is crucial for electronics to optimize performance and to avoid premature component deterioration. An area of primary concern is at the interface of adjoining th..

Solution Processable n-Type polymers

Introduction Conjugated polymers and organic semiconductors promise great advances in electronics because of the benefits they offer over silicon, including being cheaper with less demanding manufactu..

Self-Assembly of Hybrid Components for OLED and Flexible Displays

Introduction The market for flat panel displays is projected to reach $125 billion by 2012. Flexible displays are a fast-growing segment of this market, forecast to reach $120 billion by 2020. Co..

Projection Display for Small Handheld Devices

Introduction At present, the size of the display screen in handheld electronic devices is limited by the overall size of the device itself. With continuing miniaturization of cellphones, MP3 video pla..

Method of Detecting, Characterizing, and Quantifying Bulk, Light- Element Materials Using High-Energy, Penetrating X-Rays

Introduction X-rays have long been used in the characterization of a wide variety of materials. However, conventional techniques for dealing with light-element (or low-Z) materials, such as those cont..

Electrospinning of Hollow Nanofibers

Introduction One of the problems associated with nanoscale fabrication is the ability to manufacture hollow nanofibers made of polymers, ceramics, and composite materials. Other challenges include mak..

Design and Fabrication of Optical Probes that use Photo- Chemical Neural Stimulation or Inhibition

Introduction Stimulation of neural tissue is typically done with electrodes inserted into or in close proximity to the neurons. Excitation or inhibition of a neural pathway is accomplished by electric..

Neutral Conjugated Surfactants as Electron Injection Layer in Polymer Light-emitting Diodes

Introduction Significant improvements have been made in polymer light-emitting diode (PLED) technology, including improved efficiency, high brightness, and low drive voltage. Despite advances, operat..

Electrochemical Printing for 2 & 3 Dimensional Rapid Fabrication

Introduction Electrochemical Fabrication is the process of manufacturing a wide array of devices by either electrodeposition of pure metal/alloys on substrates or by selectively producing and/or remov..

Carbon Nanotube-based Thermal Interface Material

Introduction Thermal management is an increasingly serious challenge for the semiconductor device industry as the density of circuit elements continues to increase in accordance with Moore’s Law. Ef..

Mechanosensor Based on Arrayed Dome-shaped Flemion

Introduction Mechanosensors are found throughout nature, for example, in both plant and animal tissue, specific cells are capable of sensing mechanical movement. Remarkably, some cells sense mechanica..

Improved Design of FSMA Inchworm Actuator

Introduction There is great demand for new, compact, but powerful actuators in a variety of industries which can replace heavy actuators, such as the hydraulic actuator and the electrical motor with g..

Electrochromic “Smart” Windows

Introduction Coatings for optical glass and vision products have been on the market for several decades. The older coatings change from transparent to colored under the effect of ultra-violet radiatio..

A New Protocol of Diels-Alder Lattice Hardening for Highly Efficient Electro-optic Materials Showing Outstanding Temporal Stability over 200 Degrees C

Introduction Organic electro-optic (EO) materials have attracted much interest in the past two decades because of their extensive potential applications in various fields, ranging from waveguides, swi..

Method of High-Performance CMOS Design

Introduction Dynamic circuit families such as domino are commonly used in today’s highperformance microprocessors for obtaining timing goals that are not possible using static complimentary metal ox..

Thermo-reversibly Crosslinked Cladding Materials with Highly Tunable Conductivity for Nonlinear Optical Polymer-based Devices

Introduction A typical electro-optic waveguide device includes a lower electrode layer, a lower cladding layer, an active guiding layer, an upper cladding layer, and an upper electrode layer. The purp..

Microcellular Electrical Wire Coatings

Introduction In microcellular plastic foams, inert gas is dissolved in thermoplastic under high pressure. The forced evacuation of this gas during processing creates pores (or cells) within the final ..

High-efficiency Light-emitting Diodes Using Neutral Surfactants and Aluminum Cathode

Introduction Light emitting diodes (LED) are desirable for displays due to their high energy efficiency, as compared to more traditional technologies like liquid crystal displays (LCD), which require..

Stabilized Plasma Light Source for EUV Lithography

Introduction Researchers at the UW have developed a novel technique to produce a gas discharge plasma with a lifetime up to 2000 times longer than conventional methods. The plasma can serve as a stabl..

Micro-Fabricated Heat Exchanger for High-Power Diode Laser

Introduction Diode bars, a type of high-power semiconductor laser, are finding increasing use due to their decreasing costs and high output power. However, they produce a significant amount of heat, a..

Advanced Thermoelectric Materials of High Efficiency

Introduction Efficient heat management takes the form of both energy harvesting and cooling, and both are crucial in many applications, such as with electronics in order to optimize performance and to..

Bright white electroluminescent (EL) devices

Introduction Solid state lighting technologies are being used in both specialized lighting applications and as a replacement for incandescent and fluorescent bulbs within the $12 billion lighting mark..

Energy Based Stability Control of Haptic Devices

Introduction Humans interact with their world through the five senses, but the sense of touch is primarily used in the manipulation of objects. The word haptic refers to the sense of touch, and a hapt..

Design of Energy Harvestor Based on Piezo-shape Memory Alloy Composites

Introduction Shape memory alloy (SMA) materials act as an energy harvestor in locations where temperature fluctuates between high and low readings (e.g. 0C – 150C for TiNi SMA). Stress change in the..

Development of Large Bandgap Host Materials for Phosphorescent Emitters

Introduction The performance of organic light-emitting diodes (OLEDs) has improved dramatically over the past decades. However, the efficiencies of conjugated polymer-based phosphorescence devices usu..

Tubular Electronics

Introduction As the demand for smaller and more portable consumer electronics increases, new designs and fabrication techniques must constantly be developed in order to accommodate and take advantage ..

New bioFET Sensors for Labs on a Chip

This biopixel array and novel configuration of sensors has greatly enhanced sensitivity and is the first to integrate all the elements in a single unit. These novel sensors can be easily integrated in..

Automatic Door Opener

An award-winning UOIT engineering design, developed by students, comprises a pneumatic, two-way, door opener that recharges itself each time the door is manually opened. Description Automatic doo..

IMPLEMENTING MIMO IN MOBILE DEVICES BY MEANS OF VIRTUAL RECEIVE ANTENNAS

BACKGROUND MIMO (Multiple-Input Multiple-Output) technology is increasingly viewed as a solution to the ever increasing data rates required in mobile devices and its use is taking off, particularly in..

HIGH POWER TRANSISTORS FOR USE AT HIGH FREQUENCIES

BACKGROUND Prof. Mo Missous at the School of Electrical and Electronic Engineering, the University of Manchester has developed a family of prototype high power high frequency transistors with high bre..

Three-dimensional (3-D) Thin-Film Microbattery

The Invention The 3-D Thin-film Microbattery is a, lithium or lithium-ion battery conformally formed on all exposed surfaces of a perforated substrate. The extended area provides an increase of 1-2 o..

A novel system for rapid fluorescence detection of non-amplified nucleic acid sequences

The Invention A new homogeneous technique which utilizes fluorescence resonance energy transfer (FRET) to directly detect and distinguish specific DNA sequences without requiring either an amplificat..

TRANSPARENT X-RAY BEAM DIAGNOSTICS

BACKGROUND Today X-ray beams are used in many areas in science and engineering. Their unique properties give a wealth of information in a non-destructive manner. Research with highly collimated beams ..

ELECTROLUMINESCENT YARNS

BACKGROUND The concept of electroluminescent (EL) materials is based on the exposure of an electroluminescent substance to a high frequency electrical field, in contrast to photoluminescence in which ..

Survivin-Binding Proteins, Encoding Nucleic Acids, and Methods of Use

Survivin-Binding Proteins, Encoding Nucleic Acids, and Methods of Use

Photonic Devices Having Degenerate or Split Spectral Band Edges

Background: The manipulation of electromagnetic energy can be advantageous to numerous applications within many industries. For instance, much effort has been focused on reducing the velocity of elec..

Concurrent Mode Antenna System

Background: With advances of radio communication technology, various radio communication services available using wireless terminals such as mobile phones, personal digital assistants, personal compu..

Compact Atomic Magnetometer and Gyroscope

Background: Magnetometers are used for sensing magnetic fields. Applications include geophysical surveying, nuclear magnetic resonance imaging (MRI), magneto-encephalography and perimeter surveillanc..

Integrated Biomedical Multimodality Imaging Probe - Optical Coherence Tomography/Ultrasound/Photoacoustics Imaging System

Background: In clinical applications for the examination of cardiovascular, cerebrovascular, leg and other vessels, ultrasound imaging (USI) and optical coherence tomography (OCT) are two of the most..

Method and System of Elasto-Optical Tomography for Breast Cancer Imaging

Background: Currently, X-ray mammography is the widely accepted method for the detection of changes in the breast that may be cancer. However, this screening technique lacks specificity to determine ..

Environment to Environment Connection

Background: Most common communication involves interaction directly from a person to another person. When technology started mediating communication, devices started playing a more important role and..

Methods of Manufacturing Microdevices in Laminates, Lead Frames, Packages, and Printed Circuit Boards

Background: Microelectrical-mechanical systems (MEMS) are miniature mechanical devices intended to perform non-electronic functions such as sensing or actuation. These devices are typically built fro..

Rescanning Laser Scanning Confocal Microscope

Background: The laser scanning confocal microscope (LSCM) is widely used as a confocal microscopy technique for imaging fluorescent objects in a manner that removes out of focus fluorescent light and..

A New Analog Hardware-Efficient Multi-Antenna Receiver Architechtur for Spatial Multiplexing, Spatial Diversity and Beamforming

Background: Multi-antenna communications have demonstrated remarkable performance improvements in wireless systems and hold a promising future for applications that demand higher data rate, enhanced ..

Optimizing Sound to Suppress Tinnitus

Background: Tinnitus is the perception of sound in the absence of corresponding external sounds. Although known for its high-pitched ringing, tinnitus is an internal noise that varies in pitch and fr..

A Multi-Band, Inductor Re-Use Low Noise Amplifier

Background: In recent years, multiple-input multiple-output (MIMO) systems have proven to enhance data rate and provide robust signal reception under a variety of environmental settings. However, its..

Eco Wireless Sensor Node

Background: Many wearable wireless sensor systems have similar looking architectures. To reduce unnecessary redundant design effort, modular, expandable platforms have been proposed. They include fea..

Integrated Direct Electron Imaging Sensors

Background: Conventional charged particle imaging sensors use film and charged couple device (CCD). CCD has poor radiation tolerance and records images indirectly while the film is an analog recorder..

High-Velocity, Ion-Driven Wind Generator

Background: A fluid can be accelerated to high velocities using electrostatic forces and no moving parts. This concept, termed "ion-driven", "ionic", "Chattock", "electrohydrodynamic", "electrokineti..

Novel Distributed Direct Conversion Receiver for UWB Systems

Ultra-Wide Band (UWB) wireless broadcasts are capable of carrying huge amounts of data up to 250 feet with extremely little transmit power and high immunity to interference and multipath fading. The s..

Distributed RF Front-End for UWB Receivers

Background: Ultra-Wide Band (UWB) wireless broadcasts are capable of carrying huge amounts of data up to 250 feet with extremely little transmit power and high immunity to interference and multipath ..

Real-Time Electrochemical Detection of Targets Using Phage-Displayed Polypeptides

Background: With up to 10^12 unique members, phage-displayed libraries provide a vast pool of candidate receptors to essentially any target. Despite this tremendous potential of phage-displayed libra..

Transmit Beamforming for a Large Reconfigurable Antenna Array

Background: Many space-time transmission schemes have been proposed recently to exploit the high channel capacity of MIMO communication systems. However, algorithms for a large antenna array (LAA) re..

Wafer-Level Micro-Glass Blowing

Background: Large scale confinement chambers have been created in the past using traditional glass-blowing techniques. However, conventional glass-blowing can only be used to create large components ..

Universal Gain Cells for Broadband Amplifiers

Background: Designing distributed amplifiers by using heterojunction bipolar transistors (HBTs) is a great challenge compared with using field effect transistors. The reasons causing this challenge a..

Successive Transmit Beamforming Algorithms for Multiple-Antenna OFDM Systems

Background: In this paper, we focus on the design and evaluation of new transmit beamforming algorithms for the multiple-input single-output (MISO) orthogonal frequency division multiplexing (OFDM) s..

Novel Successive Beamforming Schemes for Multiple Antenna Systems

Background: A new trend in wireless communications is to use multiple transmit and receive antennas such as those found in MIMO wireless systems, to attain higher data rate, better signal quality, an..

Single-Mask Fabrication Process for Linear and Angular Piezoresistive Accelerometers

Background: Piezoresistive accelerometers are traditionally fabricated by doping selected areas of wafer to achieve isolated pn-junctions. Often, two separate doping steps are employed to obtain both..

Broadband Power Amplifier With a Novel Tunable Output Matching Network

Background: In the past decade, InGaP/GaAs heterojunction bipolar transistors (HBTs) have been the key technology in delivering solutions for both high efficiency and high linearity monolithic microw..

Environmentally-Sensitive Reconfigurable Antenna

Background: With the exception of light-based sensors, that change their light interaction properties, all sensors require some power in order to operate and provide a signal to a remote source. Ligh..

Applications of Photonic Crystals with Degenerate Spectral Band Edge

In a vacuum, light propagates with a constant velocity, while in an optically transparent non-dispersive media, the speed of light propagation can be different. At optical frequencies, the refractive ..

Method and Apparatus of Using 3D Conductive Structures in Dielectrophoretic Separation Applications

Background: Researchers estimate that 80% of all machine failures are due to wear and that 1.3~1.6% of the GNP is lost to degradation of machinery due to friction-related wear. The abnormal abrasive ..

Methods for Making 2D Nanoscale PN Junctions and Junction Arrays

Background: Silicon-based device structures capable of laser emission are highly desirable since they allow realization of integrated opto-electronic circuits. Unfortunately, it is generally believed..

New Multiphase LLC Resonant Voltage Regulators for Next Generation Microprocessors

Background: Recent developments in semiconductor manufacturing technology have resulted in unprecedented density of transistor elements per silicon area. This new technology facilitates a dramatic in..

Composite Transistors for Compensation of HBT Self-heating Effect and Enhancement of HBT Linearity

Background: Heterojunction bipolar transistors (HBT's) are the key components in the high output power densities circuits at microwave frequencies and are increasingly being utilized for large signal..

A Broadband Amplifier with Huge Gain-bandwidth Product and Low Power Consumption

Background: Without a distributed amplifier, most broadband amplifier bandwidths can be achieved around 1/10 to 1/3 of their fT only. Therefore, a high bandwidth amplifier requires high fT (at least ..

Immunoassay Apparatus and Method Using Flow Induced Electrical Admittance

Background: There remains a need for new immunoassay techniques and related devices for performing immunoassays with improved simplicity, efficiency and/or accuracy. The present invention provides fo..

Microfluidic Flow Transducer Based on the Measurement of Electrical Admittance

Background: The development of multifunctional, high throughput lab-on-a-chip depends heavily on the ability to measure flow rate and perform quantitative analysis of fluids in minute volumes. Tradit..

Optimal Spatial Sub-channel Resources Allocation Mechanism for Sustainable Bit Rate Wireless Conduits

Background: The latest video compression standard (MPEG-4) has moved the wireless industry one step closer to the world of high quality multimedia services. Commercial wireless MPEG-4 video codec sys..

Photonic Slab with Axially Frozen Mode

Background: A unidirectional gyrotropic photonic crystal allows electromagnetic wave propagation in a certain direction at a certain frequency and at the same time, impedes electromagnetic wave propa..

RF MEMS Technology for Fabricating RF MEMS Switches

University researchers have invented a low-cost, high performance, and substrate independent RF MEMS technology for RF MEMS switch fabrication with high yield and reliability. It is compatible with we..

Ion Optical Element for Use in Controlling Charged Particle Beams

Background: Previously, reflectrons consisted of stacks of discrete electrodes. These stacks can be expensive to manufacture and contain inherent imperfections - the field over the assembly of electr..

A Laser System for the Generation of Pulses with Duration in the Pico-second Range and a Narrow Bandwidth

UCI researchers have developed a laser system for the generation of pulses with duration in the picosecond range and a narrow bandwidth. The laser system produces pulses with a duration of about 25 ps..

Gyrotropic Phontonic Crystals And Their Applications In Microwave Technology

By proper spatial arrangement of magnetic and dielectric components, one can construct a magnetic photonic crystal with strong spectral asymmetry (nonreciprocity). The spatial asymmetry, in turn, resu..

High Speed Circuit Board Writing

A method of printing lines on circuit boards from computer information in a manner similar to using an inkjet printer. Utilizing capillary stream break-up of molten metal droplets, this novel approach..

A General Constant Frequency Pulse-Width Modulator And Its Applications

Background: Switching converters are commonly used to provide DC to DC, DC to AC, AC to DC, and AC to AC conversion of electrical waveforms. These converters are often categorized by applicable circu..

One Cycle Control Of Bipolar Switching Power Amplifiers

Researchers at the Power Electronics Laboratory at University of California, Irvine, received a U.S. patent for a device that uses one cycle control for controlling DC-to-AC switching converters. This..

Data Compression Of Time-Varying Images

Background: Current methods of transmitting time-varying images involve encoding the digital image information into a set of still frames. To reduce the bandwidth necessary to transmit the full image..

Fail-Safe, Inexpensive Electrochemical Device Stack Design

APPLICATIONS OF TECHNOLOGY: Small scale fuel cell applications (auxillary power units) Small scale syngas production Small scale gas separation ADVANTAGES: Improved stack efficiency (10% mor..

Control System for a Power Supply

FEATURES Power supplies are used in numerous devices and applications as sources for voltage and/or current. In some devices, such as mass spectrometers, the accuracy of the voltage output of a powe..

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