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Portable Security Surveillance Device

Portable Security Surveillance Device (PSSD) is a multi-functional mobile assistant for supporting fundamental human values, helping us to be safe and spend our time well. Mobile connectivity reliance has become an integral part of life for many youth. PSSD’s primary focus on safety and security are...
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Abualeiz Antenna

It’s a method which is been used for designing passive RFID tags with multi frequencies, and multi memory. It has ability to divide the tag memory into many parts. Each part can be administrated by its one chosen frequency band. It is an antenna with self matching impedance compatible with all comm...
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The Optical Memory Unit for Capturing Complete Analog Motion

The OMU is an inkless pen, as you write it records all hand movement, you are able to write your application for the software needed. The Patent has more detailed information....
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System and Method for Selectively Enabling a Control System

A Silicon Valley company has developed the ultimate in online security and patented technology they call “Alive Biometric Signature Authentication Identification Security Systems Solutions™”(ABSAISSS) coupled with “Fragmented Character Data Storage Infrastructure Server Vaults™” (FCDSISS). “These Al...
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Combination Trunk Cover with Spoiler and Scrolling Display

A trunk lid cover in combination with a car spoiler. The trunk lid cover is of flexible material and is disposed for covering the trunk lid only of an automobile. The trunk lid cover is held tightly against the surface of said trunk lid. A car spoiler attached to the trunk lid cover. A message displ...
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Adaptable keyboard system

A system for adapting a keyboard display to a definable input language is provided. The system includes an adaptable keyboard comprising keys; a software application, operatively associated with the adaptable keyboard; and a computerized system enabling to receive data from the adaptable keyboard, p...
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Voice Over Internet Communications Algorithm and Related Method for Optimizing and Reducing Latency Delays

A method of optimizing latency delays in VoIP and other multimedia communications using IPv6 over the “publics” internet and between two end users that involves selecting an optimum VoIP route based upon periodic trace measurements of the best available VoIP routes at the time of VoIP communications...
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System and Method for Incorporating a Personalized Writing Style into a Word Program

A system, method and computer writeable medium for creating a personalized font and which includes an electronic pad exhibiting a display. A stylus pen is manipulated to mark upon at least one field exhibited by the pad on its display. A separate processor operable device incorporates a keyboard, an...
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Method for remotely controlling a telephone loop/channel from another

These patents are for Call Bridge, Managed Call Forwarding, and Call Back - features common to almost all of the approx 120 PBX vendors products in the US. Marketing document is attached as a pdf....
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Mobile Remote Control of a Shared Media Resource

Systems and methods for controlling a shared media resource are disclosed. One embodiment includes an edge device adapted to control the media resource based on content selection votes received from users in the shared space who transmit their votes to the edge device over a wide area communication ...
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RF Controlled Devices to Increase Compliance with Handwashing Protocols

A system for monitoring compliance with handwashing protocols by a plurality of workers, each worker carrying a wireless tag having a worker identifier, the monitoring being performed in a facility having a plurality of areas, the system comprising a plurality of wireless tag reader/transmitters eac...
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Device and Method for Iterative Interference Compensation for Mobile Reception of OFDM Signals in Fast Varying Multipath Propagation Channels

A receiver and receiving method for Inter-Carrier Interference (ICI) compensation in an orthoghonal frequency division multiplexing (OFDM) system is provided. The receiver comprises an OFDM-demodulator (302) for demodulating a received OFDM signal r[l] into an input signal Y[l], first estimation mea...
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Transmission Device for Generating an Analog Modulated Pulse Train and for Transmitting the Same and a Receiving Device for Receiving a Respective Signal

The present invention relates to a transmission device and to a receiving device. In particular, the invention relates to a transmission device for generating an analog modulated pulse train and for transmitting the same, comprising an pulse generator (1), by means of which a pulse train can be gene...
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Device and Method for Impulse Transmission and Reception Coping with Multipath Propagation, Different Types of Interference and Low Snr

A transmitter for generating a pulse train and for transmitting said pulse train, the transmitter being adapted to generate (1) the pulse train, to modulate (2) the pulse train with respect to the amplitude and/or position of its individual impulses, to spread (3), preferably to multiply, the pulse ...
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Method for Communicating Information

The invention relates to amethod for communicating intended information between a sender and at least one receiver in a communication system. The method comprises providing a plurality of elements to be sent from the sender to the receiver, the plurality of elements being in a first order; sending t...
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Angled Junction Between a Microstrip Line and a Rectangular Waveguide

The present invention relates, in the field of radio-frequency engineering, to a junction element for transferring an electromagnetic wave in a strip conductor to a waveguide. In this case, a waveguide having a first opening is applied to a substrate, on which strip conductors and strip conductor st...
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Device and Method for Iterative Interference Compensation for Mobile Reception of Ofdm Signals in Fast Varying Multipath Propagation Channels

A receiver and receiving method for Inter-Carrier Interference (ICI) compensation in an orthoghonal frequency division multiplexing (OFDM) system is provided. The receiver comprises an OFDM-demodulator (302) for demodulating a received OFDM signal r[l] into an input signal Y[l], first estimation mea...
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Switchable Freewheeling Circuit for Matrix Converters

The matrix converter for converting a single or multi-phase input voltage with a variable or fixed frequency and a variable or fixed amplitude into a single or multi-phase output voltage with a variable frequency and/or amplitude is provided with at least two input connections, at least two output c...
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Monolithically Integrated Antenna- and Receiver Circuit for the Detection of Terahertz Waves

The present invention relates to a device for detecting millimeter waves, having at least one field effect transistor with a source, a drain, a gate, a gate-source contact, a source-drain channel, and a gate-drain contact. Compared to a similar such device, the problem addressed by the present inven...
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Monolithically Integrated Antenna- and Receiver Circuit for the Detection of Terahertz Waves

The present invention relates to a device for detection of millimeter waves with at least one field effect transistor having a source, a drain, a gate, a gate-source contact, a source-drain channel and a gate-drain contact.Compared with such a device, the present invention is based, among other thin...
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Architecture and Two-layered Protocol for Real-time Location-aware Applications

A two-layer communication protocol that supports efficient real-time location-aware application on multiple mobile devices that must communicate with each other and/ or a centralized server. The two-layer protocol includes a method of communicating data between a first mobile device and a second mob...
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Adaptive Location Data Buffering for Location-aware Applications

A method of buffering location data on a mobile device. The method transmits location data packets via an unreliable protocol to a receiving device and buffers a copy of the location data packet. Periodically, the method also transmits a location data packet via a reliable protocol to the receiving ...
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Cognitive positioning system

This invention provides arbitrary positioning accuracy for cognitive radio communications in both indoor and outdoor environments adaptively. It enables the user or wireless device itself to adjust positioning accuracy adaptively. Hence, this invention can be used for developing numerous personal, c...
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Laser-based Terahertz and Millimeter Wave Source

The invention relates to a method and a device for generating electromagnetic radiation in the terahertz and millimeter range, using a non-linear medium generating the indicated radiation by differential frequency generation within the laser resonator of a suitable laser, such as a VECSEL or a disc ...
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Method and Implementation for Information Exchange Using Markov Models

The replacement of secret keys is a central problem in key management. Typical solutions exchange handshaking messages, involve complex computations, or require the cooperation of trusted third parties. Disclosed herein is a key replacement method that exploits the randomness of Markov models to eff...
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F-inverted Compact Antenna for Wireless Sensor Networks and Manufacturing Method

An F-inverted compact antenna for ultra-low volume Wireless Sensor Networks is developed with a volume of 0.024lambdax0.06lambdax0.076lambda, ground plane included, where lambda is a resonating frequency of the antenna. The radiation efficiency attained is 48.53% and the peak gain is -1.38 dB. The a...
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Wireless Communication Method and System for Transmission Authentication At the Physical Layer

The subject authentication scheme encompasses a large family of authentication systems which may be built over existing transmission systems. By superimposing a carefully designed secret modulation on the waveforms, authentication is added to the signal without requiring additional bandwidth. The au...
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System and Method for Spatio-temporal-context Aware Interaction of Users with an Entity of Interest

A multifunctional interaction system which is capable of spatio-temporal context localization of users and of communication of audio/video streams to an entity of interest defined by the user, includes a communication domain supporting a predefined localization service, a server associated with the ...
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Practical Method for Resource Allocation for QOS in OFDMA-based Wireless Systems

A data communication resource allocation for OFDMA based wireless systems supporting heterogeneous traffic is provided by allocating the rates to users subject to power/bandwidth constraints, according to a user selection metric and rate allocation based on traffic requirements and channel condition...
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Method for Fast Roaming in a Wireless Network

A roaming service method for a fast and secure wireless network is provided. In an embodiment of the present invention, an AP, which an STA associates with, transmits proactive keys needed for roaming to neighbor APs of the AP. When the STA moves to one of the neighbor APs, a reassociation is carrie...
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Method and System for Source Authentication in Group Communications

A method and system for authentication is provided. A central node for issuing certificates to a plurality of nodes associated with the central node in a network is also provided. The central node receives a first key from at least one node from among the plurality of nodes and generates a second ke...
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Novel Topology Selection and Broadcast Method for Rule-based Link State Routing

An apparatus and method are provided for optimizing the link-state information that is to be broadcast in a routing domain of a communication network for QoS rule-based link-state routing. The routers include any device capable of implementing the routing primitives. The apparatus and method involve...
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Digital Image Compression By Resolution-adaptive Macroblock Coding

Disclosed is an image encoder that divides a digital image into a set of "macroblocks." If appropriate, a macroblock is "downsampled" to a lower resolution. The lower-resolution macroblock is then encoded by applying spatial (and possibly temporal) prediction. The "residual" of the macroblock is cal...
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Matching with a Large Vulnerability Signature Ruleset for High Performance Network Defense

Systems, methods, and apparatus are provided for vulnerability signature based Network Intrusion Detection and/or Prevention which achieves high throughput comparable to that of the state-of-the-art regex-based systems while offering improved accuracy. A candidate selection algorithm efficiently mat...
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Large Format High Resolution Interactive Display

An interactive display device of a preferred embodiment includes a display surface and a touch interface associated with the display surface. A first LCD layer generates a dynamic parallax barrier and a second LCD layer generates stereoscopic images in cooperation with the first LCD layer. A light s...
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Method and Apparatus for Sharing Traffic Information

A system that incorporates teachings of the present disclosure may include, for example, a communication device having a controller to receive from a system a broadcasted vehicle velocity, detect that a difference between a velocity of a vehicle carrying the communication device and the broadcasted ...
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Transmit Opportunity Detection

The present application discusses, among other things, apparatus and methods for detecting and using a excess capacity on a wireless network medium. A method embodiment includes calculating a differential metric based on a first metric and a second metric for a primary network. The primary network c...
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Device and Method for Non-contact Recording of Spatial Coordinates of a Surface

The invention relates to a device and a method for non-contact recording of spatial coordinates of a surface, comprising a sensor head (7) and a controller (13) connected to the sensor head (7), wherein the sensor head (7) is designed as a portable hand-held device, a projector (1) sand two cameras ...
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Antennas with Broadband Operating Bandwidths

Designs and operations of momentum antennas are presented. In some antenna designs, the terminating discontinuities are complementary with the opposite transmission line's discontinuity. In other antenna designs, the terminating discontinuities are intrinsically self-complementary....
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Flexible Antennas and Related Apparatuses and Methods

Embodiments of antennas over flexible substrates are described herein. Other embodiments and related methods are also disclosed herein....
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Microphone Devices and Methods for Tuning Microphone Devices

The present invention relates generally to microphone devices useful, for example, in hearing aid devices. The present invention relates more particularly to tunable microphone devices, and methods used to tune them. One aspect of the present invention is a microphone device that includes at least o...
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Communication Interface for Sensory Stimulation

Techniques, apparatuses, and systems for interfacing multiple sensors with a biological system can include amplifying signals from respective sensors associated with an external device; modulating the amplified signals based on respective different frequency values; and summing the modulated signals...
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Set-top Box Peer-assisted Video-on-demand

A peer-to-peer (P2P) video-on-demand (VoD) system or method use a plurality of LP-enabled VoD set-top box (STB) peers in a pool for providing video content data to a requesting client peer in the pool. One other peer in the pool can be designated as a parent peer for downloading high priority playba...
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Methods and Systems for Reducing Mac Layer Handoff Latency in Wireless Networks

In accordance with the present invention, computer implemented methods and systems are provided for reducing handoff latency in a wireless network. In response to detecting that a handoff is necessary, the present invention uses a selective scanning algorithm that includes the use of a channel mask ...
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Antenna with Multiple Co-located Elements with Low Mutual Coupling for Multi-channel Wireless Communication

An antenna that has a number of co-located elements, with no (or very small) coupling between the various elements. The antenna may comprise one or more electric dipole elements, such as an electric tripole, co-located with one or more magnetic dipole elements, such as a magnetic tripole. The antenn...
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Systems and methods for correlating and distributing intrusion alert information among collaborating computer systems

Systems and methods for correlating and distributing intrusion alert information among collaborating computer systems are provided. These systems and methods provide an alert correlator and an alert distributor that enable early signs of an attack to be detected and rapidly disseminated to collabora...
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Methods and Systems for Controlling Traffic on a Communication Network

Methods and systems for controlling traffic on a communication network are provided. In accordance with some embodiments, methods for controlling traffic on a communication network are provided, the methods comprising- receiving, at a processor in a receiver, a query message for permission to send a...
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Systems, Devices, and Methods for Continuous-time Digital Signal Processing and Signal Representation

Systems, devices, and methods for continuous-time digital signal processing and signal representation are disclosed. This includes a continuous-time analog-to-digital converter that is configured to receive an analog signal and convert it to a continuous-time digital signal without using a clock or ...
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Systems and Methods for Wirelessly Receiving Data

In accordance with some embodiments,, receivers for receiving a wireless data transmission are provided, the receivers comprising at least one amplifier that receives an RF input signal and produces at least one amplified signal; a mixer that mixes the at least one signal to produce a mixed signal; ...
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Apparatus and Methods for Processing Compression Encoded Signals

Apparatus and methods for processing compression encoded signals are provided. In some embodiments, a signal processing method is provided that includes receiving a subband of a compression encoded signal at a subband processor, generating envelope information regarding the subband of the compressio...
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Systems and Methods for Displaying Three-dimensional Images

Systems and methods for displaying three-dimensional (3D) images are described. In particular, the systems can include a display block made from a transparent material with optical elements three-dimensionally disposed therein. Each optical element becomes luminous when illuminated by a light ray. T...
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Apparatus, Methods, and Computer Program Products Providing Dynamic Provable Data Possession

In one exemplary embodiment, a method includes: storing data for a file, organized as blocks, each having a portion of the file (301); and maintaining a skip list for the data (302). The skip list is an ordered tree structure having a root node, internal nodes and leaf nodes. Each leaf node correspo...
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Reconfigurable Chamber for Emulating Multipath Fading

Disclosed is a compact reconfigurable channel emulator, which may be used to emulate severe fading environments and test wireless systems and subsystems for operation in severe channel environments. Examples include radios, coding schemes, diversity methods and antennas. In particular, the chamber i...
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System and Method for Visualizing a Structure of Interest

A system. The system includes a computing device configured for communication with an imaging system and with a display device. The computing device includes a contour modeling module. The contour modeling module is configured for superimposing reference anchors on a cross-sectional image generated ...
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System and Method for Real Time Asset Location and Tracking

A system for estimating the current position of an asset within a location that includes a transponder associated with the asset, a plurality of wireless interface devices provided within the location, and a central computer system in electronic communication with the wireless interface devices. The...
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Sensor and System to Detect Bridge Scour

A system for detecting scour associated with a structure having a part thereof extending into a bed of material located under a body of water is provided. The system comprises a sensor unit buried in a portion of the bed of material located in proximity to the part. The sensor unit is structured to ...
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Transparent Conformal Polymer Antennas for Rfid and Other Wireless Communications Applications

An optically transparent conformal polymer antenna and a method for producing the antenna from optically transparent conductive polymers. The method includes selecting an antenna design; providing an optically transparent conductive polymer material capable of being printed using an ink-jet printer ...
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Systems and Methods for Selecting Reconfigurable Antennas in Mimo Systems

A method allows reconfigurable multi-element antennas to select the antenna configuration in MIMO, SIMO and MISO communication system. This selection scheme uses spatial correlation, channel reciprocal condition number, delay spread and average Signal to Noise Ratio (SNR) information to select the a...
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Mimo Antenna Arrays Built on Metamaterial Substrates

A magnetic permeability enhanced metamaterial is used to enhance the antenna array of a Multiple Input Multiple Output (MIMO) communication system. A rectangular patch antenna array is formed including a stack of a plurality of unit cells, where each unit cell includes an inductive loop of magnetic ...
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Ystem and Method for 3-dimensional Display of Image Data

Disclosed is a system for a 3-dimensional display that includes at least one eyepiece having first and second eyepiece sockets, having a first display contained in said first eyepiece socket associated with a first eye, two eye cameras mounted such that a first eye camera tracks eye reference points...
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Broadcast Latency Optimization in Multihop Wireless Networks

A system and methodology that can optimize practical performance by reducing broadcast latency and collisions in a multihop wireless network is provided. The system includes an optimization component that determines a schedule for transmitting and/or receiving messages at nodes in the network during...
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Vehicular Information Systems and Methods

Disclosed is a method and system that receives sensor information from each of a plurality of sensors. Each sensor in the plurality is associated with a vehicle. The sensor information includes location coordinates of each vehicle in the plurality. The sensor information associated with each vehicle...
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Virtual Flow Pipelining Processing Architecture

A computer system for embodying a virtual flow pipeline programmable processing architecture for a plurality of wireless protocol applications is disclosed. The computer system includes a plurality of functional units for executing a plurality of tasks, a synchronous task queue and a plurality of as...
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Method for the Operation of an Antenna Group Having a Plurality of Transmitters and a Plurality of Receivers and Associated Apparatus

The present invention relates to a method for the operation of an antenna group (1) having M>=2 transmitters and N>=2 receivers (3) for the digital beamforming. In the method, a coherent transmit signal is transmitted in a transmit-receive-cycle via each of the M transmitters (2) into an area to be ...
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Digital beam forming using frequency-modulated signals

The present invention relates to a method for angular determination and/or for increasing the angular resolution or a detectable angular range when operating antenna groups using the technique of digital beam forming (DBF), as well as a device for carrying out the method. In the method, a measuremen...
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System and Method for Virtual Server Migration Across Networks Using Dns and Route Triangulation

A first virtual server is moved from a first network location to a second network location without interrupting service to users of the first virtual server. The state and data of the first virtual server are copied and transmitted to the second network location to create a copy of the first virtual...
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System and Method for Injecting Sensed Presence Into Social Networking Applications

A method for injecting sensed presence into social networking applications includes receiving sensor data associated with a user, inferring a presence status of the user based upon analysis of the sensor data, storing the sensor data and presence status within a database, and sending the presence st...
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Wireless Passive Radio-frequency Strain and Displacement Sensors

Wireless strain and displacement sensors wirelessly monitor structural health and integrity, and are made by printing inductor-interdigital capacitor sensing circuits on a variety of substrates, including ceramic substrates, with thermally processable conductive inks. Sensors of the invention can be...
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Systems and Methods for Key Generation in Wireless Communication Systems

A system and a method for providing a secure wireless ad-hoc network in a wireless communication system having at least two transceivers coupled by a wireless transmission link are disclosed. The method includes receiving a data transmission at a first transceiver from a second transceiver, wherein ...
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Apparatus, Systems and Methods for Enhanced Multi-carrier Based Underwater Acoustic Communications

Advantageous OFDM-based underwater acoustic (UWA) apparatus, systems and methods are provided according to the present disclosure. In general, OFDM transmissions over UWA channels encounter frequency-dependent Doppler drifts that destroy the orthogonality among OFDM subcarriers. The disclosed appara...
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Video Processing System Employing Behavior Subtraction Between Reference and Observed Video Image Sequences

An image processing method includes calculating sequences of motion labels from each of first and second sequences of images, each sequence of motion labels including motion label values indicating levels of motion activity in corresponding regions of the corresponding sequence of images. First and ...
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Device for fastening radio-frequency identification transponder at e.g. container to identify and monitor transport cart containing object, has preparing device and mounting device arranged at common

The device (10) has a preparing device (20) i.e. boring machine, for producing a receptacle i.e. borehole, for a transponder in a material of an object e.g. wooden pallet (13). A mounting device (22) brings the transponder in the receptacle. The preparing device and mounting device are arranged at a...
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A Method and System of Enhanced Performance in Communication Systems

A method of spatial modulation to identify a transmitter within a transmission array, wherein the transmitter has a unique bit sequence and defines a spatial component indicative of relative location is disclosed, comprising the following steps: receiving transmitted bits from the transmission array...
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Guidance, Navigation and Information System Especially Adapted for Blind Or Partially Sighted People

The present invention concerns an orientation, navigation and information system, especially adapted for blind or visually impaired people. It is essentially a system that allows blind or visually impaired people to access information usually made available only to public transportation users visual...
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System and Method for Increased Observation

The invention relates to a system for increased observation, enabling the improvement of the information received by a user observing an event, said system comprising: a means for capturing images located at the same point, said means capturing individual images of the event; a processing means prov...
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Analog System for Generating Quadrature Signals

The system comprises at least one injection-tuned oscillator (O1) and at least one analog multiplier (Mx1) with an output (Mx1s1) connected to the input (O1e) of said oscillator (O1) for supplying it with an injection signal (V inj) resulting from the multiplication of the signals present at the inp...
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Method for the Completely Adaptive Calibration of a Prediction Error Encoder

The method comprises a first step of initialization; a second step of reception and accumulation of block-size data samples, in which for each value received, one is added to the histogram accumulator associated with this value; a third step of analysing the histogram and determining the encoding op...
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Housing for Microphone Arrays and Multi-sensor Devices for their Size Optimization

A sensor system being is located in an environment composed of a first medium, where waves propagate with a first phase velocity, the sensor system including at least one main enclosure and a sensor array with at least two sensors, said sensor array being arranged inside the main enclosure, wherein ...
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Autocorrelation-Based Multi-Band Signal Detection

A receiver device for detecting a multi-band signal, the receiver device comprising a bank of autocorrelation units adapted for separating the multi-band signal into a set of autocorrelation signals, and a sampling stage arranged downstream the bank of autocorrelation units and adapted for sampling ...
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Tof Range Finding with Background Radiation Suppression

A method for measuring time of flight of radiation comprises emitting modulated radiation (51) in response to a first modulation signal, projecting the modulated radiation (51) onto a scene (55), and receiving radiation, the received radiation comprising at least modulated radiation reflected by the...
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Lens system for three-dimensional display applications

A lens system for a display system, the display system and a method, adapted for three-dimensional display applications are described. The lens system comprises a first lens array (1) adapted for focusing a light beam in a direction comprising a horizontal and/or a vertical component relative to a f...
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System and Method for Position Estimation

The present invention is related to a method for estimating the location of a target device in a wireless network, whereby the wireless network comprises a plurality of reference stations. The method comprises the steps of measuring with the target device a signal parameter of a set of signals recei...
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Device and Method for Signal Detection in a TDMA Network

The present invention is related to a circuit (1) for detecting activity in a burst-mode receiver. The circuit is arranged for receiving an input signal (2) comprising a preamble. The circuit comprises a differentiator (11) for detecting signal transitions in the input signal (2) whereby the preambl...
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Centralized Authentication System

The present invention provides a method for centralized identity authentication of a user (20), for use in connection with a communications network, based on a network wide reputation for the user. The method comprises creating at least one online service account, e.g. a website account, for allowin...
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Method and System for Analog Beamforming in Wireless Communication Systems

The present invention is related to a method of analog beamforming in a wireless communication system, whereby said system has a plurality of transmit antennas and receive antennas. The method comprises the steps of determining transmit beamforming coefficients and receive beamforming coefficients b...
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Integrated system comprising waveguide to microstrip coupling apparatus

The present invention provides an integrated system comprising an RF chip (1), an antenna (2) and a transition element for providing signal coupling between a waveguide (5) and a microstrip line (6). The transition element and the antenna (2) are integrated in a multilayer system (3). The antenna (2...
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Method and Apparatus for Real-time/on-line Performing of Multi View Multimedia Applications

A method and apparatus for real-time/on-line performing of multi-view multimedia applications are disclosed. In one aspect, a method of computing a disparity value of a pixel includes computing from two input images a plurality of first costs for a pixel, each cost associated with a region selected ...
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Mimo Sphere Detection with Parallel Distributed Node Processing

The present invention is related to method for detecting a symbol transmitted over a communication channel in a multiple input-multiple output communication system by performing sphere detection. A parallel processing performing a distributed-greedy-algorithm for the tree search is proposed. It is b...
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Method for Resolving Network Contention

A method for resolving network contention in a wireless network having a plurality of communication devices is disclosed. In one aspect, the method includes determining a set of initial values of at least three parameters of a first device of the plurality, at least one of the at least three paramet...
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Method for Generating a Data Block for Transmission Using a Cpm Scheme

A method for generating a data block for transmission using a continuous phase modulation scheme is disclosed. In one aspect, the method includes inserting payload data in the data block, the payload data having a plurality of payload symbols, each involving an state change in a continuous phase mod...
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Communication Device and Method

The present invention relates to a communication and interoperability device with at least one electronic peripheral apparatus (2), wherein the device includes a electronic processing circuit (6) connected to at least one connection interface (5) for at least one peripheral apparatus, characterised ...
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Method for Synchronising Video Streams

The invention relates to method or synchronising at least two video streams from at least two cameras having a common field of vision. The synchronisation method includes at least the following steps: acquiring (81) the video streams and storing the images constituting each video stream on a video s...
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Method and System for the Efficient and Automated Management of Virtual Networks

The invention relates to a method for the automated management of the performance of at least one virtual network (214, 216, 218) consisting of a plurality of virtual nodes installed on physical nodes (202, 204, 206, 208) selected from among a set of physical nodes forming an infrastructure network ...
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Method and System for Deploying At Least One Virtual Network on the Fly and on Demand

The invention relates to a method for generating, on the fly and on demand, at least one virtual network (402, 404, 406), adapted for a specific use, on a physical network (200), referred to as an infrastructure network, including physical nodes (204, 206, 208, 210), each of said physical nodes (204...
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Electronic dispersion compensation system and method

The invention provides a system and method for an optical communication network to compensate impairments in the network to optimize system parameters, using electronic dispersion compensation (EDC) comprising a circuit for receiving two signals, representing amplitude and instantaneous frequency, a...
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A reflective optical transmitter

A semiconductor optical amplifier (SOA) is used in a double pass configuration with one of the output ports followed by an attenuator, which is followed by a modulator with a reflective facet. The variable loss between the SOA and the modulator is optimised, so that the SOA can be operated in a high...
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Robust Routing of Data in Wireless Networks

A wireless network (1) comprises a base station (2) and sensor nodes (3). The base station (2) comprises a network interface (10), an application interface (11), topology control functions (12) a timer (13), and a buffer (14). Each sensor node (3) comprises a network interface (20), route control fu...
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Femtocell Configuration Using Spectrum Sensing

An embodiment provides for the ad-hoc configuration of femtocells (104) using spectrum sensing for the selection of spectrum channels. In this embodiment, frequency bands that are not reserved by macrocells in a location (130) are determined (302), and spectrum sensing (206-220) is performed to dete...
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System and Method for Measuring Optical Signal-to-noise Ratio

The invention provides a system and method for measuring optical signal-to-noise-ratio (OSNR) in an optical communication system. A channel filter is adapted to select one specific optical communication channel from a wavelength-division-multiplexing (WDM) optical communication system, wherein the c...
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Radio Frequency Transponder System

A radio frequency transponder, including: a substrate; and at least one planar antenna on said substrate, said antenna having a shape determining a corresponding resonant frequency of said antenna; wherein said antenna causes a phase difference between backscattered signals generated in response to ...
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Radio Frequency Transponder

Information is encoded in a resonator/antenna structure, which may be interrogated in order to retrieve the information via radio frequency (RF) excitation. The resonator/antenna structure comprises a multiresonator including a plurality of substructures, and exhibits a plurality of resonances in th...
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Ditributed Turbo Coding and Relaying Protocols

This invention concerns distributed turbo coding and relaying protocols wireless relay networks. In particular, the invention concerns a method for relaying signals at a relay node, a method for processing signals at a destination node, a relay system and software to perform the methods. The wireles...
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Signal Method and Apparatus

Methods and apparatus for generating and processing a signal are disclosed. The signal may comprise a plurality of mutually orthogonal subcarriers constituting a plurality of bands. The signal may be either an optical or a radio frequency signal...
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Band-notched Wideband Antenna

The present invention provides a wideband antenna (10) comprising: a substrate (13); a radiating element (12) supported on the substrate and coupled to a transmission feed-line (14); and a resonator (20) mounted in proximity to the radiating element and occupying an area that is covered at least in ...
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Multifunctional Antenna

A multifunctional antenna is described comprising a substrate having a radiating element provided on a first side thereof. A first ground plane is provided in proximity to the radiating element and a transmission line is coupled to the radiating element and configured to link the radiating element t...
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Multifunctional Antenna

A multifunctional antenna comprises a radiating element and a microstrip feed line coupled to the radiating element. The microstrip feed line comprises a conductive strip disposed on a first side of a substrate and a ground plane disposed on a second side of the substrate, extending beneath the cond...
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Reconfigurable Antenna

A reconfigurable antenna comprises two or more mutually coupled radiating elements and two or more impedance -matching circuits (56, 58) configured for independent tuning of the frequency band of each radiating element. In addition, each radiating element is arranged for selective operation in each ...
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Pervasive Display System and Method for Operating a Pervasive Display System

A pervasive display system, including at least one display device for presenting content, is characterized in that the system further includes a content creator being configured to annotate content with contextual presentation goals that specify when, where, and how said content should be presented,...
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A Receiver of Multiplexed Binary Offset Carrier (MBOC) Modulated Signals

A receiver for receiving a navigation signal comprising a carrier modulated by a code modulation function of a given code rate and further modulated by a composite sub-carrier modulation function having first and second components with two different rates both of which are different to the code rate...
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Method and Apparatus for Beamforming in Multiple Userscommunicaiton Using Multiple Antennas

PURPOSE: A beam forming method in a multi antenna multi user communication system and an apparatus thereof are provided to simplify and integrate a system design, thereby overcoming performance deterioration due to quantization. CONSTITUTION: A beam forming method in a transmitting device of a multi...
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Apparatus and Method for Beamforming Based on Generalized Eigen Analysis in a Multiple Input Multiple Output Wireless Communication System

PURPOSE: A beam forming device using an eigen analysis in a multi input/output communication system and a method thereof are provided to perform multi input/output communication of multi users without interference between terminals. CONSTITUTION: A beam forming device using an eigen analysis in a mu...
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Scalable Bus-based On-chip Interconnection Networks

The present disclosure generally relates to systems for routing data across a multinodal network. Example systems include a multinodal array having a plurality of nodes and a plurality of physical communication channels connecting the nodes. At least one of the physical communication channels may be...
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Method, System, Server and Client for Transmitting Media Stream Data

A method, system, server and client for transmitting media stream data are provided. The method includes: dividing all clients in a conversation into a first conversation group and a second conversation group; retransmitting the received media stream data to the client in the first conversation grou...
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Communication Terminal and Information System

A communication terminal and an information system are provided. The communication terminal includes an image/video collecting and generating module (1) to collect and generate stereo image/video data, a communication module (2) to transmit and receive stereo image/video data, and an image/video dis...
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Power line communication apparatus and method for controlling the same

The embodiments of the present disclosure provide a PLC apparatus and a method for controlling the PLC apparatus. The method includes: acquiring a working state and a network state of the PLC apparatus; and switching the working state of the PLC apparatus in accordance with the working state and the...
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A Method and a System of Video Communication and a Device for Video Communication

A method, a system, and a device of video communication are provided. A sub-picture in a synthetic picture corresponding to each audio stream received is marked. Position information of each audio stream is obtained according to a position of each sub-picture in the synthetic picture. The audio stre...
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Displaying device, terminal of displaying device, and display method

A displaying device, a terminal of the displaying device, and a display method are provided. The displaying device includes: a calculating unit, configured to calculate the active display area that shows the interface content and calculate an image area occupied by a display interface; a creating un...
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A Video Encoding/decoding Method and a Video Encoder/decoder

A video coding method, a video decoding method, a video coder, and a video decoder are disclosed herein. A video coding method includes: performing base-layer coding for the first view, and extracting prediction information of at least one layer by combining a locally decoded first view and a second...
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Video Encoding Decoding Method and Device and Video Codec

A video encoding decoding method and device and a video codec are provided. The video encoding method includes the following steps. A first view picture is basic-layer encoded as a reference view picture, prediction information is extracted in combination with a second view picture, and the second v...
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Telepresence System, Method and Video Capture Device

A telepresence system, a method and a video capture device are provided. The system includes the video capture device, a video display device, an audio capture device, an audio play device and a video audio communication device. Video and audio captured by the local video capture device and the loca...
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Systems and Methods for Providing Opportunistic Security for Physical Communication Channels

Systems and methods of providing opportunistic security for physical communication channels are disclosed. One disclosed method is for opportunistic secure communication on a main channel between a sender device and a receiver device when an eavesdropper device is listening on an eavesdropper channe...
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Communication System, Transmission Device, Reception Device, Communication Method, and Program

The present invention relates to a communication system capable of performing efficient data transmission in HDMI(R) and the like, a transmission apparatus, a receiving apparatus, a communication method, and a program. An HDMI(R) source 53 determines whether or not an HDMI(R) sink 61 can receive a s...
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Communication Control System, Mobile Communication Switching Device, Subscriber Information Management Device, and Communication Control Method

In a communication control system 1, in an acquisition step of acquiring routing information before a line is set, a first mobile communication switching device 100 generates an acquisition request signal of routing information, which includes calling/called number specifying information and call in...
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Device for wavelength conversion of optical signal wavelength into another wavelength, has laser light source, which emits optical signal of wavelength

The device has laser light source, which emits an optical signal (S1) of a wavelength (Lambda1), and another laser light source (L2), which emits another optical signal (S2) of another wavelength (Lambda2). An optical filter (10) is provided for central wavelength of the latter laser light source. T...
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Automated Voice-operated User Support

An information device for voice-operated support of a user includes a storage medium, a knowledge database, a processing unit, an input device, a recording component, a transcription component, and an ontological analysis component. A signal is detected by the input device and stored by the recordin...
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Predistortion of Amplifier Input Signals

Described herein are devices, methods, and techniques related to predistortion of amplifier signals based on an operating condition. Predistortion techniques are described that mitigate or eliminate the effects of variable operating conditions, including nonlinear effects, on amplified signals. Nonl...
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Communication System and Redundant Configuration Management Method

A redundant device stores configuration information, including IP addresses and routing information used for transferring user data, and session information for each device in use. Then, in the event that a problem occurs with any of the devices in use, the redundant device continues the transfer of...
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Enhancement of Data Transmission Rates for HSDPA Systems

Background The enhancement of data transmission rates is relevant to high speed downlink packet access (HSDPA) systems, such as the system shown in Figure 1. In particular, there is growing interest in data rate improvements for Femtocells, for which high data rates and complexity are delivered fo...
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Inometrix Inc.

Current commercial dispersion measurement equipment is incapable of stable, accurate and low cost characterization of short length optical fibers/waveguides. Technology developed by Michael Galle and his research team at the University of Toronto changes this by introducing not just one but two new ...
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Opportunistic WIFI Mesh Infrastructure for Broadband Wireless Internet

Mesh networking is a way to route data, voice and routing instructions between Wi-Fi nodes. It allows for continuous connections and reconfiguration around broken or blocked paths by “hopping” from node to node until the destination is reached. Mesh networks differ from other networks in that the co...
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Reflector Antenna with Improved Performance

Researchers at the University of British Columbia have developed a simple, practical, and low cost antenna design for effective transmission and reception of communication signals. The antenna design employs a spherical reflector and a feed that is positioned pointing substantially downward, where t...
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Adaptable Channel Testbed for Investigating On-the-move Wireless Nodes (ACTION)

ACTION is a comprehensive, real-time platform used to analyze the performance of wireless networks with stationary or mobile nodes. A test-bed or “fictional” approach is essential due to the challenge and cost associated with live field-testing to capture network performance for high-speed (> Mach 4...
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High-fidelity Quantum Logic Operations Using Linear Optical Elements

Techniques for high fidelity quantum teleportation include receiving an input photon representing a qubit. Ancilla photons are generated in a particular ancilla quantum state chosen to reduce a rate of error below a threshold error rate. The ancilla and the input photon are combined to populate outp...
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Quantum Memory for Photonic Qubits

This invention, in one aspect, is a method for performing quantum logic operations using linear optical elements with much smaller errors than in earlier methods. As shown in Fig. 1, the proposed quantum logic devices have two logical inputs, each of which is a quantum bit (qubit) represented by a s...
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Apparatus and Method for Quantum Mechanical Encryption for the Transmission of Secure Communications

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. This is analogous to an automatic encryption code that exists at only one location and is immediat...
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Multi-line Towed Acoustic Array Shape Measurement Unit (SMU)

An acoustic array comprising a plurality of nodes attached to two or more lines. Some or all of the nodes include an emitting transducer and a receiving hydrophone, and the balance include only a receiving hydrophone. Each emitting transducer has associated electronics comprising a high fidelity amp...
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Digital Nulling Pulse Inductive Metal Detector

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 with existing PIMD’s. First is the high kickback voltage of the transmitter coil, which temporally bl...
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Switched Coil Receiver Antenna for Metal Detector

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 with existing PIMDs. First is the high kick-back voltage of the transmitter coil which temporally bli...
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Chloride Ion Sensor

The United States is replacing aging concrete infrastructure and simultaneously developing the tools and techniques to monitor new infrastructure as it ages. Currently, trained personnel base most infrastructure monitoring on individual sensor measurements or periodic visual inspection. Sensors are ...
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Smart Aggregates: Distributed Sensor Suite for Remote Infrastructure Monitoring

Physical and analytical sensors need the ability to communicate via wireless connections to various forms of readout systems. Many applications for sensors are in remote and embedded locations where wired or optical connections are not practical or economical. Sensors in these applications need to b...
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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 foyer, entranceway or other open area can carry the targets. The systems needs to be able to achieve a...
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Wide Bandwidth Variable Gain Optical Amplifier for Optical Communications Systems

Optical communications systems can suffer from fast (...
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Remotely Directed Vehicle Inspection System

Personnel operating check points, border crossings, toll barriers, parking garages, traffic stops and others are subject to many different types of hazards. They include explosives, drugs, weapons, chemical, biological and radiological agents, smugglers, contraband and others. A method is needed to ...
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Prime-Rational Frequency Synthesis Method and Frequency Synthesizers

Frequency synthesizers are an essential element to modern navigation and communications systems, as they provide the means to align and synchronize distributed transmitters and receivers with high signal purity. The degree of synchronization and signal purity is directly proportional to the quality ...
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Broadband Clock Recovery Circuit Using YIG Oscillators

JHU/APL inventors have designed a Broadband Clock Recovery Circuit using YIG Oscillators with novel features compared to similar technologies currently circulating in this market. The fields of application for this invention include companies in Telecommunications and those involved in Test and Meas...
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Submarine Speed and Depth Communications Enabling Technologies and At-Sea GPS Reception Demonstration

The Johns Hopkins University Applied Physics Laboratory (JHU/APL) has an ongoing interest in providing two-way submarine communications (at speed and depth) and developing buoyant cable antenna (BCA)-enabling technologies. JHU/APL envisions submarine speed and depth communications capabilities that ...
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Media Access Control (MAC) Protocol for neXt Generation (XG) Radio System

This technology allows multiple radios to sense the radio frequency (RF) spectrum in order to determine the frequency, and other dimensional parameters, to be used for transmitting signals between the nodes. When a user of an XG radio requests to make a transmission to another XG radio, the protocol...
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Simultaneous Bi-directional Digital Data Transfer Over a Single Transmission Line

Telephone systems have used “two-to-four-wire hybrids” for years. A telephone hybrid is a multi-winding transformer that connects the two wires of the receiver and the two wires of the transmitter to a single wire pair. It allows cancellation of the local voice signal so that the distant signal may ...
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Serial and Ethernet Over-The-Horizon (SOTH/EOTH) Communication System

Overview: The Johns Hopkins University Applied Physics Laboratory (APL) has developed the Serial and Ethernet Over the Horizon SOTH/EOTH Communication System. This system can transparently replace a wired point-to-point data link with a wireless satellite communication (SATCOM) link. The SOTH/EOTH s...
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High Altitude Remote Probe (HARP)

Winged aircraft and most lighter-than-air airships, or tethered aerostats are limited to the lower altitude with denser atmosphere, thereby limiting their horizon coverage. Further, they require substantial support and are not generally on station for long periods (days or months) due to crew limits...
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Mechanism for Aiming Lasers with High Precision Anti-jamming Applications

Among the critical challenges facing optical communications network developers is the security of very high bandwidth optical data links. Desired capabilities include essentially global access to multi-satellite, multi-site terminals that must be allocated and managed to insure quality of service, m...
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Method for Adaptable, Distributed and Synchronized Signal Observation

Due to the overwhelming demand for consumer wireless communications, the Chairman of the FCC recently announced a new spectral deregulation policy creating a market for secondary allocation of the current commercial radio spectrum. This APL invention is a system intended for signal observation in mu...
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Integrated, All Photonic Lighting, Heating, Cooling and Communications for Buildings

Unlike much longer wavelength microwave systems such as cellular and cordless technologies, optical and millimeter bands do not penetrate building structures as thoroughly. The Johns Hopkins University Applied Physics Lab has invented a new approach for use of optical techniques in an integrated ...
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Remote Monitoring and Relaying for Wrist Watch Alarm

Hearing loss can be a problem for many segments of the population. As the population gets older and the ability to hear high pitch sounds decreases, it may not always be possible to hear a watch alarm or cell phone ringing. It is common to see people use watch alarms to remind them to take medicatio...
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Spiral Resonator-Slot UHF Antenna

resonator-slot antenna is configured to have a spiral of a conducive sheet material having at least one turn and extending along an axis with an elongated antenna slot helically wound around the axis in at least one full twist. Patent Status: U.S. patent(s) 6897822 issued...
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High Temperature Light Guide

Researchers at the Johns Hopkins Applied Physics Laboratory (APL) have created a high-temperature optical fiber assembly for sensing applications within harsh or high-temperature environments. These pressure-sealing and chemically resistant light guides have been made using both quartz and borosilic...
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Crosslink Transceiver for Integrated Navigation and Communication Among Multiple, Distributed Spacecraft

A significant number of Earth and space science goals rely on the successful deployment and operation of distributed spacecraft technology. In conjunction with fundamental science, distributed spacecraft military missions have been identified as important capabilities to maintain national interests....
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Open Autonomy Kernel (OAK), an Architecture for Mode-Identification and Reconfiguration of Control systems Model-Based

Model-based reasoning systems have been relying upon a single model on which a single reasoning engine operates. A single inference engine physically removes the intelligence from the control system when used to control geographically large systems such as ships, computer networks, power grids and t...
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Integrated Optical Mono-pulse Tracking System for Full Duplex Optical Communication

Conventional technology relies on a lens or array of lenses to cause incident energy to be aligned with the central detector. Tracking detectors are arranged around a central detector in close proximity and only receive energy as a result of misalignment. This misalignment causes a decrease in the e...
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Cable-to-House Wideband Wireless Link and Relay

There is a need to provide an information distribution system having greater networking and information bandwidth, reduction of obsolescence costs, increases in mobility, lower human electromagnetic exposure, and reduced costs of services. It is, therefore, an aspect of the present invention to p...
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X-Band Solid State Power Amplifier (SSPA)

A high-efficiency solid state power amplifier (SSPA) for specific use in a spacecraft is provided. The SSPA has a mass of less than 850 g and includes two different X-band power amplifier sections, i.e., a lumped power amplifier with a single 11-W output and a distributed power amplifier with eight ...
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Integrated Adaptive Antenna Array and Adaptive Locally-Optimum Detection Processor

Adaptive Antenna Arraying (AAA) and Adaptive Locally-Optimum Detection (ALOD) are two complementary signal-processing techniques use for detecting weak signals (such as radio or radar) in the presence of strong man-made interference or jamming. The system is primarily designed for incorporation with...
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Controlled Beam Steering Using Two-Beam Coupling for Optical Routing Applications

Optical routing applications involve the re-direction of an optical beam from one path direction to another in a well-controlled, rapid manner. One possible means of re-direction involves the use of two-beam coupling in photorefractive polymer films. Novel polymer photorefractive systems are attr...
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Planar Magnetic Field Antenna

Most metal detectors (electromagnetic induction (EMI) sensors) or nuclear quadrupole resonate (NQR) use a loop antenna to create a magnetic field in the environment. The magnetic field interacts with the objects. For trasient EMI metal detectors, the magnetic field creates eddy currents in the metal...
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Hybrid Inflatable Antenna

hybrid inflatable dish antenna combines a fixed parabolic antenna and feed with an inflatable annulus to greatly increase the dish surface area on orbit. This provides a simple, more reliable, and low cost method for large dish deployment. The fixed portion of the dish also provides modest high gai...
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"SPARCL" High Bandwidth Space-to-Ground Data Transmission System Concept

An optical communication system using a high altitude tethered balloon 10 that operates above most clouds and atmospheric turbulence. An optical communication system includes a balloon 10 with an optical communication payload 30, a fiber optic cable attached to the tether 12, an automated winch syst...
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Networked Sensor System (NESSY)

A networked sensor system that simultaneously acquires, processes, and transmits sensor data under the control of a central processing unit. The system includes sensors connected to sensor processing modules. The sensor processing modules are serially coupled together and to the central processing u...
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Floating GPS Cylindrical Slot Antenna

-------------------------------------------------------------------------------- Floating GPS Cylindrical Slot Antenna Reference#: P01325 -------------------------------------------------------------------------------- This invention enhances the capabilities of the Buoyant Cable Antenna ...
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A Portable Rapidly Erectable Discone Antenna

Technology Status: United States Patent 5,608,416 --- Champion, et al.March 4, 1997 Market Need: This invention is lightweight, portable, quickly assembled, wideband, discone antenna for high-frequency ground wave communication. The disk portion of the antenna is formed of telescoping spokes, and th...
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Coherent Radar Digital Data Collector and Sampling Technique for Noncoherent Transmitter Radars

Radar Digital Data Processor has been developed which produces I (phase) and Q (quadrature) data obtained by sampling the receiver IF of a radar with a single A/D converter. A sampling technique was developed for this application to allow operation with radars employing a noncoherent transmitter su...
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High Speed Imaging Television System

The present invention provides a unique approach to solving the problem of dead-time between the forming of images in a video camera system by the multiplexing of the outputs of a plurality of cameras together to form an interlaced composite video signal which enables high speed viewing of a dynamic...
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Sharp Mode-Transducer Bend for Overmoded Waveguide

sharp, mode-transducing bend structure for circular TE01 overmoded waveguide systems is formed by first transducing from circular TE01 waveguide into multiport rectangular TE10 waveguide, performing the desired bend, and then transducing from the multiport rectangular TE10 waveguide back into the c...
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Local Area Communication Network

The invention is a communications network for providing full-duplex data transfer between any two network interface units on a one-to-all-others contention bus. Network interface units (NIUs) send and receive data signals on outgoing and incoming links, respectively, which are connected to junction ...
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Microelectromechanical Wireless/RF Components

Description Microelectromechanical System (MEMS) devices provide many advantages over conventional devices because of their unique actuation, miniature and integration features. The device sizes are usually in the range from 10mm to 1mm and the thickness of moveable parts on the chips usually...
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Parylene Micromachined Piezoelectric Acoustic Transducers on Silicon Substrate

Description A new type of micromachined acoustic transducers, parylene micromachined piezoelectric acoustic transducers, has been developed and tested for use as microphones and microspeakers. The parylene diaphragms have about 100 times lower stiffness than silicon nitride, and considerably increas...
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Infrared Communication System (MFS-31331)

Abstract: The MSFC transceiver was developed to serve as a data-communication link between the RS-232-stan-dard serial communication port of a PC running Microsoft Windows and a remote infrared transceiver that can operate at a baud rate greater than or equal to 4 MHz. The PC-to-transceiver communi...
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New Manufacturing Devices for Improved Fiber Optic Assemblies (GSC-13644)

Abstract: Fixture for Adhesive Curing in Open-Cell Ovens This device holds a termination and optical fiber firmly in place during elevated temperature epoxy bonding in an open-cell oven. Until adhesives are fully cured,terminations must not move or slip from their position on the fiber. When insert...
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Fiber Optics-Distributed Sensor System (TOP1-468)

Abstract: The DSS determines the Bragg reflectivity and wavelength at every point along an optical fiber by measuring the interference of the light reflected from the Bragg gratings with the light from a reference reflector. The reflected spectrum of any section of fiber can then be computed. Shift...
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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 supply voltages and low power dissipation in ultra-deep submicron silicon technology is a major chal...
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Unidirectional Proxy Re-encryption with Applications to Secure Distributed Storage

The invention consists of three public-key encryption schemes that support �proxy re-encryption�. In a typical public-key encryption scheme, a sender (Alice) may encrypt messages to a recipient Bob under Bob�s public key, such that only Bob may decrypt (and learn the message contents) using his secr...
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Fair Asynchronous Random Access with Probabilistic Antenna Allocation in MIMO Multihop Networks

This invention is the first asynchronous multiple input/multiple output media access control (MIMO MAC) protocol that counters starvation and provides fairness. The invention exploits antenna selection and uses standard network utility maximization to find the number of used antennas per link in a g...
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A new communications protocol for personal two-way radios

The Ramrod protocol is a new method for users of two-way radios to contact each other without the problem of finding an open channel or losing a signal. The FCC places strict restrictions on digital/data/non-voice communications in the FRS/GMRS bands which preclude traditional techniques for dealing...
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Scalable, Rapidly Tunable Wavelength Selective Ring Resonator

Introduction Wavelength-division multiplexing (WDM) is a capacity increasing technology used in fiber-optic communications to carry different optical signals in a single optical fiber. Optical add-drop multiplexers are required at either end of a fiber for WDM. Current technologies switch too slowly...
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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 more important specific electro-optic effects is known as the Pockels effect. Materials exhibiting ...
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A Common-Gate Low Noise RF Amplifier for Ultra High Frequencies

Introduction Typically the first stage of an integrated receiver is a low-noise amplifier (LNA); hence, it is one of the most critical RF building blocks. An LNA is required to provide enough gain to suppress the noise contributions of subsequent blocks such as mixers. Noise figure is the most impor...
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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 being adjusted in both amplitude and phase. Variable-gain low-noise amplifiers and variable phase shift...
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Frequency and phase measurements using the Morlet transform

Introduction Telecommunication systems designed for Bluetooth or other standards deal with transmitted and received signals in the radio frequency (RF) range. Modulation methods and frequency-hopping techniques are employed to optimize access for multiple users. These communication architectures cre...
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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 complexity and increased size leads to higher costs; thus, design improvements that save space and decrease ...
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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 in situations where fiberoptics are impractical. Unfortunately, this technique suffers from signal ...
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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 ADC’s modulator subsystem with an observation circuit to provide quantized estimates of the modulat...
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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 cells from body fluids. So far, these techniques have typically required substantial capital equipment...
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Embedded Haptics in Cell Phone Dialing

Introduction Handheld devices such as cellphones and PDAs have been increasing in complexity over the last few years. These devices can now handle large amounts of data, but the avenues for inputting data are severely limited. A more flexible channel for entering data into handheld devices would all...
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Mechanically Controllable Microwave Phase Shifters

Introduction Researchers at the UW have developed a low-cost microwave phase shifter that will be a key component of the ground station antenna for the proposed high-speed satellite based internet connection. The designs use a low-power electro-active polymer (EAP) as an actuator. Technology descrip...
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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 in situations where fiberoptics are impractical. Unfortunately, this technique suffers from signal ...
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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 complexity and increased size leads to higher costs; thus, design improvements that save space and decrease ...
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Novel Measurement of Intermodulation Distortion (IMD) in Ferrite Circulators

BACKGROUND The rapid expansion of wireless communications and the development of mobile phone technology have resulted in a market requirement for large capacity communication systems. Wideband Code Division Multi-Access (WCDMA) is considered to be promising technology to meet this requirement. Idea...
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Phone for Blinds and Illiterates

Phone for Blinds and Illiterates’, a patent pending technology, provides a convenient method for dialing ,programming and storing telephone numbers equally beneficial for a common, illiterate, aged, visually handicapped and physically challenged person....
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Global Qualitative Flow Path Modeling for Local State Determination (MSC-22618)

The technology supports reconfigurable models needed for analysis and simulation of industrial process automation where operations change the active flow paths in the system. The technology can be used to validate advanced process automation designs and software, where the active system structure ch...
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Breakthrough in Combining/Dividing Radio Frequency/Microwave Power (MFS-31186)

In the past, methods to divide a waveform had inherent design constraints that limited high-efficiency techniques. This invention provides 50 to 60 percent efficiency compared to the 10 percent efficiency now achieved in non-pulsed circuits. This invention has contributed an important approach to so...
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Planar waveguide grating device having Controlled Polarization Dependent Sensitivity and Method of Manufacturing thereof

Solution / invention summary : Method of manufacturing that controls efficiently the effects of polarization dependent loss (PDL) and polarization dependent lambda (PDλ). Advantages / benefits : - The Echelle grating device is much smaller than other commercial technologies like the ones based ...
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Monolithic Photodiode Array with Impedance Match

High-bit-rate optical fiber networks and photonic microwave applications currently rely on photodiodes to serve as optical-to-electrical (O/E) converters. In such high performance, high-speed applications the O/E converters must exhibit high 3db bandwidth as well as a large saturation photocurrent. ...
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Shape-controlled Silver Nanoparticle Ink (“ArgentInkTM”)

New Market Opportunity: Silver nanoparticle inks have applications in a wide number of fields across the electronics, physics, chemistry and biomedical fields. The optical absorption and fluorescence characteristics of the silver nanoparticles are critical to their functionality in all applications...
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