Electrical Engineering Technologies for Sale or License

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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.

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

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

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

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.

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 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)

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)

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

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)

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

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

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

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

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

Diverisfied Xerogel-Based Sensors to Improved Analyte Detection and Quantification

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

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

POVM Receiver for Quantum Cryptography

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

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

Microlens for Projection Lithography and Method of Preparation Thereof

Highly Conformal Tungsten Nitride Thin Films

Atomic Layer Deposition Using Metal Amidinates

Using Electro-magnetically Induced Transparency in Photonic Crystal Cavities to

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

Active Optical Antennas

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

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

Spatial Light Modulator

Electric Microcontact Printing

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

Vapor Deposition of Silica Nanolaminates

Microlens for Projection Lithography and Method of Preparation Thereof

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

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

Nanoscale Electrically Driven Lasers

Atomic Layer Deposition Using Metal Amidinates

Using Electro-magnetically Induced Transparency in Photonic Crystal Cavities to

Keyboard Having Touch Sensor Keys for Conveying Information Electronically

Magneto-Luminescent Transducer

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

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 â€“ "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

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

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

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

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

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

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

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

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

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

"'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

Water-Soluble Sacrificial Layers for Surface Micromachining

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

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

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

Application of Grating Light Reflection Spectroscopy in Analytical Sensors

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

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

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

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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