Patent application number | Description | Published |
20090111395 | PROVIDING A VIRTUAL LOCAL CHANNEL IN A SATELLITE BROADCAST SYSTEM - In one embodiment, a receiver for providing a virtual local channel in a broadcast radio system that transmits a plurality of sets of local content corresponding to a plurality of different geographic regions is disclosed. The receiver includes a detector (e.g., | 04-30-2009 |
20100008458 | Methods and apparatuses for estimating time delay and frequency offset in single frequency networks - In one method, an uplink signal carrying at least one block of transmitted samples is transmitted, and a distorted copy of the uplink signal is received as a downlink signal. A plurality of blocks of received samples are generated based on the received downlink signal, and a time delay and frequency offset between the uplink and downlink signals are determined based on a correlation between the block of transmitted samples and at least one of the plurality of blocks of received samples. | 01-14-2010 |
20100111197 | METHOD AND APPARATUS FOR FAST CHANNEL CHANGE - Providing a fast channel change function in a digital television system by hierarchically modulating each channel to provide both high priority (long interleave) and low priority (short interleave) signals, wherein a receiver may rapidly demodulate and use information within the low priority signal of a new channel to more rapidly change to the new channel. | 05-06-2010 |
20100142644 | Hierarchical Modulation - A method for modulating first and second bit streams in a communications network that supports at least one of a binary phase-shift keying (BPSK), a quadrature phase-shift keying (QPSK) or a quadrature amplitude modulation (QAM) constellation uses hierarchical modulation. A hierarchical modulation parameter that varies within the network is set. The first bit stream is modulated based on a first constellation of the hierarchical modulation and the hierarchical modulation parameter. The second bit stream is modulated based on a second constellation in the first constellation. | 06-10-2010 |
20100253425 | METHOD AND APPARATUS FOR PERFORMING PREDISTORTION - Embodiments are described herein to provide better predistortion solutions for the linearization of high power amplifiers, especially those with memory effects. Many embodiments involve a method in which a predistorted signal z | 10-07-2010 |
20100293213 | Method and apparatus for approximating a function - Embodiments described herein provide techniques for computing an approximation of a function. These embodiments provide an iterative method that avoids the computation of the normal matrix and/or the coefficients, as is typical in the prior art. (See diagram | 11-18-2010 |
20110164672 | Orthogonal Multiple Description Coding - In one aspect, an orthogonal multiple description encoder comprises orthogonal multiple description generation circuitry configured to produce multiple descriptions of a given signal by processing the signal using respective ones of a plurality of orthogonal matrices. Each of the multiple descriptions is generated as a function of the signal and a corresponding one of the plurality of orthogonal matrices. Other aspects include an orthogonal multiple description decoder, orthogonal multiple description encoding and decoding methods, and associated computer program products. | 07-07-2011 |
20120082205 | APPARATUS AND METHOD FOR GENERATING COMPRESSIVE MEASUREMENTS OF VIDEO USING SPATIAL AND TEMPORAL INTEGRATION - The present invention relates to an apparatus and method for generating compressive measurements of video using spatial-temporal integration. The apparatus includes a detector configured to detect luminance values of a temporal video structure over a period of time based on optical data. The temporal video structure has pixels with a horizontal dimension and a vertical dimension with corresponding luminance values over the period of time. The apparatus also includes a spatial-temporal integrator unit configured to receive a plurality of measurement bases. Also, the spatial-temporal integrator unit is configured to apply each measurement basis to the temporal video structure and to sum resulting values for each measurement basis over the period of time to obtain a set of measurements. The summed values for each measurement basis is the set of measurements. | 04-05-2012 |
20120082207 | VIDEO CODING USING COMPRESSIVE MEASUREMENTS - The present invention relates to an apparatus and method for video coding using compressive measurements. The method includes receiving video data including frames, and determining at least one temporal structure based on a series of consecutive frames in the video data. The temporal structure includes a sub-block of video data from each frame in the series. The method further includes obtaining a measurement matrix, and generating a set of measurements by applying the measurement matrix to the at least one temporal structure. The measurement matrix includes an assigned pattern of pixel values and the set of measurements is coded data representing the at least one temporal structure. | 04-05-2012 |
20120082208 | METHOD AND APPARATUS FOR ARBITRARY RESOLUTION VIDEO CODING USING COMPRESSIVE SAMPLING MEASUREMENTS - The present invention relates to method and apparatus for arbitrary resolution video coding using compressive measurements. The method includes receiving at least one measurement of a set of measurements that was generated at an encoder. The set of measurements represents encoded video data. The method further includes determining a display resolution, where the display resolution is the same or different than an original display resolution. The method further includes determining an expansion matrix based on at least a number of pixels for the determined display resolution, and reconstructing the video data using the determined expansion matrix such that the original display resolution is resized to the determined display resolution if the determined display resolution is different than the original display resolution. The expansion matrix includes a pattern of values. | 04-05-2012 |
20120189047 | Arbitrary Precision Multiple Description Coding - In one aspect, an encoder comprises arbitrary precision multiple description generation circuitry configured to produce multiple descriptions of a given signal by processing the signal using at least one matrix having a dimension which is selected as a function of a designated number of transmission resources, such as OFDM subcarriers or TDM time slots, that are allocated for transmission of the multiple descriptions. For example, the signal may comprise a vector x of dimension N and the arbitrary precision multiple description generation circuitry may be configured to generate M descriptions of the vector x where the value of M is selected to satisfy a particular one of three possible cases M=N, M>N and M07-26-2012 | |
20120294456 | SIGNAL SOURCE LOCALIZATION USING COMPRESSIVE MEASUREMENTS - In one aspect, a method for performing signal source localization is provided. The method comprises the steps of obtaining compressive measurements of an acoustic signal or other type of signal from respective ones of a plurality of sensors, processing the compressive measurements to determine time delays between arrivals of the signal at different ones of the sensors, and determining a location of a source of the signal based on differences between the time delays. The method may be implemented in a processing device that is configured to communicate with the plurality of sensors. In an illustrative embodiment, the compressive measurements are obtained from respective ones of only a designated subset of the sensors, and a non-compressive measurement is obtained from at least a given one of the sensors not in the designated subset, with the time delays between the arrivals of the signal at different ones of the sensors being determined based on the compressive measurements and the non-compressive measurement. | 11-22-2012 |
20130016790 | METHOD AND APPARATUS FOR SUPER-RESOLUTION VIDEO CODING USING COMPRESSIVE SAMPLING MEASUREMENTSAANM Jiang; HongAACI WarrenAAST NJAACO USAAGP Jiang; Hong Warren NJ USAANM Wilford; Paul A.AACI BernardsvilleAAST NJAACO USAAGP Wilford; Paul A. Bernardsville NJ US - Embodiments relate to a method and apparatus for super resolution video coding using compressive measurements. The method includes receiving, by a decoder, a set of measurements, where the set of measurements represents encoded video data having original video data with an original display resolution. The method further includes determining, by the decoder, a display resolution, where the display resolution is higher than the original display resolution, and determining a reduction matrix based on at least a number of pixels for the determined display resolution, where the reduction matrix includes a pattern of values. The method further includes reconstructing, by the decoder, the video data or a portion of the video data using the determined reduction matrix and the received set of measurements such that the original display resolution is enlarged to the determined display resolution. | 01-17-2013 |
20130044818 | Method And Apparatus For Video Coding Using A Special Class Of Measurement Matrices - The embodiments relate to a method and apparatus for video coding using a special class of measurement matrices. The method includes generating, by the encoder, a measurement matrix including a first row having a sequence of values and at least one other row having a shifted version of the sequence of values for the first row, and obtaining, by the encoder, a set of measurements by applying the measurement matrix to the video data, where the set of measurements is coded data representing the video data. | 02-21-2013 |
20130044820 | Method And Apparatus For Coding Data Using Compressive Sampling And Clustering - Embodiments relate to an apparatus and method for encoding and decoding data. The method includes arranging, by an encoder, data into a plurality of blocks. Each block corresponds to a sub-region of the data. The method further includes assigning, by the encoder, the plurality of blocks into groups such that a spread value associated with each group meets a desired criterion. The spread value indicates a level of dissimilarity or similarity among members of a group. The method further includes generating, by the encoder, a set of measurements for at least one group of blocks. The set of measurements is coded data representing the blocks corresponding to the at least one group. | 02-21-2013 |
20130121422 | Method And Apparatus For Encoding/Decoding Data For Motion Detection In A Communication System - Embodiments relate to an apparatus and method for encoding/decoding data for motion detection in a communication system. The method for encoding data includes receiving, by an encoder, video data including a plurality of frames. Each frame is represented by a pixel vector including a number of pixel values. The method further includes generating, by the encoder, sets of measurements representing the plurality of frames. Each set of measurements represents a different frame of the plurality of frames. The generating step generates the sets of measurements by applying sensing matrices to the pixel vectors, and a same sensing matrix is used for at least two sets of measurements. | 05-16-2013 |
20130156261 | METHOD AND APPARATUS FOR OBJECT DETECTION USING COMPRESSIVE SENSING - In one embodiment, the method for object detection and compressive sensing includes receiving, by a decoder, measurements. The measurements are coded data that represents video data. The method further includes estimating, by the decoder, probability density functions based upon the measurements. The method further includes identifying, by the decoder, a background image and at least one foreground image based upon the estimated probability density functions. The method further includes examining the at least one foreground image to detect at least one object of interest. | 06-20-2013 |
20130201297 | LENSLESS COMPRESSIVE IMAGE ACQUISITION - Systems, structures, devices and methods for lensless compressive image acquisition are disclosed herein with which images may be obtained from a single detection element while performing fewer times than a number of pixels associated with the image. Advantageously such systems, structures, devices and methods may be adapted to acquiring images at wavelengths that are difficult or impossible with contemporary CCD or CMOS imagers. | 08-08-2013 |
20130201343 | LENSELESS COMPRESSIVE IMAGE ACQUISITION - An exemplary lensless compressive imaging device may include a micro mirror array having a plurality of mirror elements that are individually controllable for selectively directing light reflecting from the micro mirror array. A detector detects light reflected from at least one of the mirror elements. A processor provides compressive image information based on the detected light. | 08-08-2013 |
20130208655 | METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION IN HYBRID SATELLITE-TERRESTRIAL NETWORK - In a method for cancelling interference caused by a terrestrial transmitter at a satellite receiver in a hybrid satellite-terrestrial network, a satellite receiver generates an interference cancellation signal based on a reference terrestrial signal from the terrestrial transmitter and a received over-the-air (OTA) signal. The satellite receiver then cancels the interference caused by the terrestrial transmitter by combining the interference cancellation signal with the received OTA signal. The interference cancellation signal is a modified version of the reference terrestrial signal. | 08-15-2013 |
20130235487 | ANALOG TUNNELING CURRENT SENSORS FOR USE WITH DISK DRIVE STORAGE DEVICES - Amplifier architectures are provided for current sensing applications. An amplifier includes a load device, an operational amplifier, a current source, and a bipolar transistor. The operational amplifier has a first input terminal connected to a first input node that receives an input current, and a second input terminal connected to a second input node that receives a reference voltage. The current source is connected to an output of the operational amplifier. The operational amplifier, the current source, and the bipolar transistor form a feedback loop that generates and maintains a bias voltage on the first input node based on the reference voltage applied to the second input node. The bipolar transistor amplifies the input current received on the first input node, and generates an amplified input current. The load device converts the amplified input current to an output voltage, wherein the output voltage is used to sense the input current. | 09-12-2013 |
20140023147 | CROSS LAYER CODING FOR SATELLITE MOBILE TV BROADCAST METHOD AND APPARATUS - Methods and apparatus providing error protection in multicast-broadcast service by encoding multimedia content according to a first protocol to provide a plurality of distinct video streams, coding each of the distinct video streams using respective coding protocols, wherein each coding protocol has associated with it corresponding descriptors and coefficients, and multiplexing the coded video streams toward a wireless network. | 01-23-2014 |
20140043491 | METHODS AND APPARATUSES FOR DETECTION OF ANOMALIES USING COMPRESSIVE MEASUREMENTS - A method for detection of anomalies using compressive measurements includes receiving sets of measurements, a set of measurements representing compressed coded data of a segment of data; collecting at least one statistic of the sets of measurements; and examining the at least one statistic to detect at least one anomaly in the at least one segment. | 02-13-2014 |
20140112594 | RESOLUTION AND FOCUS ENHANCEMENT - An exemplary system includes at least one detector configured to provide an output based on a detected input. A plurality of input control elements control the input detected by the detector. A processor is configured to determine at least one point spread function based on a condition of the detector, a condition of the input control elements and a selected distance associated with the output. The controller is configured to generate data based on the output and the at least one point spread function, the generated data having at least one aspect | 04-24-2014 |
20140181061 | DATA DISTRIBUTION IN A CLOUD COMPUTING SYSTEM - An illustrative data access management system includes a plurality of data storage devices and at least one data manager device configured to arrange information stored by the data storage devices. The data manager device segments compressive measurements of data into a plurality of subsets. Each of the subsets contains measurement information for facilitating a reconstruction of at least an approximation of the data. The data manager device provides at least a first one of the subsets to a first one of the data storage devices and at least a second one of the subsets to a second one of the data storage devices. One of the data storage devices may be selected, based on at least one criterion, for providing a user access to the at least one subset stored by the selected data storage device. | 06-26-2014 |
20140240870 | ANALOG TUNNELING CURRENT SENSORS FOR USE WITH DISK DRIVE STORAGE DEVICES - Amplifier architectures are provided for current sensing applications. An amplifier includes a load device, an operational amplifier, a current source, and a bipolar transistor. The operational amplifier has a first input terminal connected to a first input node that receives an input current, and a second input terminal connected to a second input node that receives a reference voltage. The current source is connected to an output of the operational amplifier. The operational amplifier, the current source, and the bipolar transistor form a feedback loop that generates and maintains a bias voltage on the first input node based on the reference voltage applied to the second input node. The bipolar transistor amplifies the input current received on the first input node, and generates an amplified input current. The load device converts the amplified input current to an output voltage, wherein the output voltage is used to sense the input current. | 08-28-2014 |