Apparatus Convertible To Analog Patents (Class 375/216)
  • Patent number: 10362610
    Abstract: A user equipment (UE) for selecting a cell using a synchronization signal (SS) in a wireless communication network. The UE comprises determining subcarrier spacing based on an operating frequency band, receiving, from a base station (BS), a signal block comprising a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a broadcasting signal conveyed on a physical broadcasting channel (PBCH), decoding a block index from the signal block, and determining OFDM symbol indices corresponding to the block index, wherein the OFDM symbol indices are determined by a mapping pattern based corresponding to the subcarrier spacing, and wherein the mapping pattern comprises a plurality of bursts each of which includes a set of consecutive OFDM symbols.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: July 23, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hao Chen, Li Guo, Young-Han Nam, Aris Papasakellariou
  • Patent number: 10333577
    Abstract: A mobile terminal and a system with a multichannel transceiver are provided. The mobile terminal includes a central processing unit and a multichannel transceiver. The central processing unit outputs first and second transmitted signals to a first transmitter module and a second transmitter module. The first and second transmitted signals are filtered, frequency-converted, amplified, and transmitted to corresponding transmitting channels. First and second received signals received by a plurality of receiving channels are amplified and then transmitted to a first receiver module and a second receiver module, respectively, and the first and second received signals are frequency-converted, filtered, and output to the central processing unit.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: June 25, 2019
    Assignee: HUIZHOU TCL MOBILE COMMUNICATION CO., LTD.
    Inventors: Shiqing Zhao, Aiping George Guo, Shenggang Hu
  • Patent number: 10251166
    Abstract: The present invention is designed to improve spectral efficiency in a radio communication system which can use non-orthogonal multiple access (NOMA). Steps are provided in which a radio base station configures one of a plurality of transmission mode including a first transmission mode, which groups a plurality of transmission methods including a transmission method to employ non-orthogonal multiple access (NOMA) and multiple-user multiple-input and multiple-output (MU-MIMO), and a second transmission mode, which groups a plurality of transmission methods including a transmission method to employ this NOMA and open-loop transmit diversity, and transmits a downlink signal for this user terminal based on the configured transmission mode.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: April 2, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Yoshihisa Kishiyama, Anass Benjebbour, Yuuya Saitou, Kenichi Higuchi
  • Patent number: 10224990
    Abstract: Disclosed in the present application is a method for a terminal reporting a precoding matrix index to a base station in a wireless communication system. Specifically, the method comprises the steps of: estimating a channel with the base station; on the basis of the estimated channel, selecting a first precoding matrix from a first codebook; on the basis of the estimated channel, selecting a second precoding matrix from a second codebook comprising only precoding matrixes which do not include the first precoding matrix; and reporting, to the base station, at least one among the index of the first precoding matrix and the index of the second precoding matrix.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: March 5, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kitae Kim, Heejin Kim, Kilbom Lee, Jiwon Kang
  • Patent number: 10142075
    Abstract: Disclosed is a method of mapping a demodulation-reference signal (DM-RS) transmitted to a terminal by a base station in a wireless communication system based on multiple antennas. Specifically, the method includes grouping a plurality of DM-RS ports into antenna port groups including a predefined number of DM-RS ports, mapping a DM-RS sequence to two symbol resources of a first slot and two symbol resources of a second slot on one subcarrier, and transmitting the mapped DM-RS sequence to the terminal through the plurality of DM-RS ports, wherein a DM-RS sequence transmitted through DM-RS ports included in the same antenna port group is mapped by applying an orthogonal cover code (OCC) having a length of 2 to the same symbol resource, and the two symbol resources of the first slot correspond to a first antenna port group and the two symbol resources of the second slot correspond to a second antenna port group on the one subcarrier.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: November 27, 2018
    Assignee: LG Electronics Inc.
    Inventors: Hyungtae Kim, Kijun Kim
  • Patent number: 10062157
    Abstract: Disclosed are apparatus and methods for determining a structure or process parameter value of a target of interest on a semiconductor wafer. A plurality of collection patterns are defined for a spatial light beam controller positioned at a pupil image plane of a metrology tool. For each collection pattern, a signal is collected from a sensor of the metrology tool, and each collected signal represents a combination of a plurality of signals that the spatial light beam controller samples, using each collection pattern, from a pupil image of the target of interest. The collection patterns are selected so that the pupil image is reconstructable based on the collection patterns and their corresponding collection signals. The collected signal for each of the collection patterns is analyzed to determine a structure or process parameter value for the target of interest.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: August 28, 2018
    Assignee: KLA-Tencor Corporation
    Inventors: Stilian Ivanov Pandev, Alexander Kuznetsov, Gregory R. Brady, Andrei V. Shchegrov, Noam Sapiens, John J. Hench
  • Patent number: 10064200
    Abstract: A method for receiving a PDCH is provided. The method comprises: receiving, by a UE, information identifying a plurality of resource elements that are transmitted with zero power in a resource block containing the PDCH; receiving, by the UE, a first DMRS on a first DMRS port transmitted from a first cell; and receiving, by the UE, the PDCH that is transmitted on the first DMRS port.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: August 28, 2018
    Assignee: BlackBerry Limited
    Inventors: Vahid Pourahmadi, Hua Xu, Siva Dharshan Muruganathan, Yongkang Jia, Shiwei Gao, Yi Song, Robert Mark Harrison
  • Patent number: 10063235
    Abstract: A semiconductor die includes at least one flexible interface block. The flexible interface block includes at least one interconnect, and at least one buffer coupled to the at least one interconnect. The flexible interface block further includes a routing interface coupled to circuitry integrated in the semiconductor die, and a controller coupled to provide communication between the routing interface and the at least one buffer.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: August 28, 2018
    Assignee: Altera Corporation
    Inventor: Tony K. Ngai
  • Patent number: 10049379
    Abstract: A method and system for analysis and evaluation of branding of commercial products embedded in entertainment programming. The entertainment programming may be divided into blocks that are compared to several rule sets defining audio visual and other attributes of the commercial products to evaluate parameters such as recall of the product by viewers.
    Type: Grant
    Filed: June 12, 2010
    Date of Patent: August 14, 2018
    Assignee: Rentrak Corporation
    Inventors: Frank Zazza, Boris Vychodil
  • Patent number: 10020834
    Abstract: Devices and methods are provided that permit interoperability between Radio over Internet Protocol (RoIP) devices and land mobile radio (LMR) devices. In one device according to the invention, a networked radio includes a wireless network transceiver, an LMR signal connector, and an analog-to-digital converter/digital-to-analog converter (ADC/DAC). A computer processor that inputs data from or outputs data to the ADC/DAC includes a sound architecture and a server. The server includes a digital audio buffer, a voice-activity detector, and a daemon. The daemon is configured to (1) collect data on one or more variables affecting a best-choice determination for transmitting a communications signal intended for retransmission to one or more LMR devices, and (2) make the best-choice determination based on the data collected.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: July 10, 2018
    Assignee: Persistent Systems, LLC
    Inventors: Herbert B. Rubens, Artur Zak
  • Patent number: 9985703
    Abstract: Disclosed is a method and system for performance test. The method includes: configuring a static channel between a transmitting end and a receiving end in a system configured with M transmitting antenna ports and N receiving antennas, wherein singular values of a N*M channel matrix of the static channel are equal, wherein, M=4 and N=4; or M=8 and N=4; or M=8 and N=8. The transmitting end transmits data to the receiving end by the static channel. When the M=4 and the N=4, the N*M channel matrix is a 4×4 channel matrix as follows: [ 1 j 1 j 1 - j 1 - j 1 j - 1 - j 1 - j - 1 j ] ; or a matrix obtained after any row swap or column swap operation is performed on [ 1 j 1 j 1 - j 1 - j 1 j - 1 - j 1 - j - 1 j ] .
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: May 29, 2018
    Assignee: ZTE Corporation
    Inventors: Yu Xin, Jia Ni, Luanjian Bian
  • Patent number: 9912373
    Abstract: Techniques to detect echoes using audio fingerprinting are described. In one embodiment, an apparatus may comprise a streaming component operative to establish a audio connection between the first client device and a second client device; and receive a far-end audio stream at the first client device from the second client device via the audio connection; an audio capture component operative capture a near-end audio stream at the first client device; and an echo processing component operative to compare the near-end audio stream and the far-end audio stream to determine whether a far-end audio segment is present in the near-end audio stream; and use an echo-cancellation module at the first client device where the far-end audio segment is present in the near-end audio stream. Other embodiments are described and claimed.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: March 6, 2018
    Assignee: WHATSAPP INC.
    Inventor: YuanYuan Wang
  • Patent number: 9843406
    Abstract: Provided are a receiver, a transmitter and a radio communication method capable of using non-orthogonal multiple access while suppressing cost increase and processing delay. A mobile station 200A receives non-orthogonal signals, also receives a reference signal to be used for interference cancellation, and extracts the non-orthogonal signal addressed to the mobile station 200A from the received non-orthogonal signals by demodulating and cancelling the radio signal addressed to another mobile station. In addition, the mobile station 200A demodulates the extracted non-orthogonal signal addressed to the mobile station 200A on the basis of the reference signal. The reference signal is multiplexed in the same radio resource block as a resource block allocated to the non-orthogonal signals, and is multiplexed in the radio resource block only when at least one signal is scheduled in the radio resource block.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: December 12, 2017
    Assignee: NTT DOCOMO, INC.
    Inventor: Yoshihisa Kishiyama
  • Patent number: 9787587
    Abstract: Methods and systems are disclosed for secure bi-directional message routing between services running on a different nodes in a computer cluster. According to some embodiments, a multi-tenant computer cluster is accessed online via a controller. The controller, acting as central management system, may establish secure independent connections with each of the many nodes. Messages from the controller to any given node, and vice versa, are wrapped in a routing envelope and transferred over an independent and secure virtual private network tunnel. This allows the plurality of nodes to be centrally managed and utilized as a cluster while not being allowed to communicate with each other.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: October 10, 2017
    Assignee: SwiftStack, Inc.
    Inventors: Darrell Bishop, Samuel N. Merritt, Joe Arnold
  • Patent number: 9780849
    Abstract: Disclosed is a method and system for performance test. The method includes: configuring a static channel between a transmitting end and a receiving end in a system configured with M transmitting antenna ports and N receiving antennas, wherein singular values of a N*M channel matrix of the static channel are equal, wherein, M=4 and N=4; or M=8 and N=4; or M=8 and N=8. The transmitting end transmits data to the receiving end by the static channel. The abovementioned technical solution can implement the performance test in 4 or 8 receiving antennas, and it can implement CQI reporting precision performance test of static channel in 4 or 8 receiving antennas.
    Type: Grant
    Filed: December 31, 2011
    Date of Patent: October 3, 2017
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO.LTD.
    Inventors: Yu Xin, Jia Ni, Luanjian Bian
  • Patent number: 9667456
    Abstract: Disclosed are a compressive sensing system based on a personalized basis and a method thereof; first a sensing end senses an original signal and transmits the original signal to a reconstruction end; the reconstruction end generates a personalized basis by means of a dictionary learning method; next, the sensing end is made to sample the original signal according to a sampling matrix to generate a compressed signal and transmit the compressed signal to the reconstruction end, so that the reconstruction end executes a compressive sensing reconstruction algorithm according to the personalized basis and the compressed signal to recover the compressed signal into the original signal, thereby achieving an effect of improving signal recovering quality and a compression ratio.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: May 30, 2017
    Assignee: NATIONAL TAIWAN UNIVERSITY
    Inventors: Yu-Min Lin, Yi Chen, Hung-Chi Kuo, An-Yeu Wu
  • Patent number: 9607362
    Abstract: Various examples of methods and systems are provided for compressive imaging using approximate message passing with denoising. According to an aspect, a method includes applying an approximate message passing (AMP) conversion framework to a plurality of substantially linear measurements for conversion into a plurality of scalar measurements. A denoiser algorithm can be applied to the plurality of scalar measurements to generate a plurality of denoised scalar measurements. Further, a conversion term can be applied to the plurality of denoised scalar measurements for converting the plurality of denoised scalar measurements to a plurality of denoised substantially linear measurements. The plurality of substantially linear measurements can represent two-dimensional or three-dimensional signals.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: March 28, 2017
    Assignee: NORTH CAROLINA STATE UNIVERSITY
    Inventors: Dror Baron, Jin Tan, Yanting Ma
  • Patent number: 9590305
    Abstract: The emitter is intended to provide a contactless communication channel (particularly RFID/NFC) in miniature build space. The emitter has an oblong, at least partially ferrite core (1), the core (1) is winded up by a wire (4) with at least two threads (2), the threads (2) are on the core (1) placed tightly next to each other and the effective width (w)of one thread (2) corresponds to the radius of the core (1) in the circular core (1) cross-section, or corresponds to the equivalent radius in other shapes of the core (1) with deviation up to +?75%. The wire (4) of the coil is flat, or the coil includes several wires held parallel to each other (41 to 4N) forming a multi-stage thread. The emitter can be placed in the removable memory card (5) and/or on the PCB board (10) and/or SIM card (9) and/or battery (11). Modulation of data transmitted by the emitter uses electromagnetic wave generator with a frequency different from the receiver, difference of these frequencies corresponds to the subcarrier frequency.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: March 7, 2017
    Assignee: SMK Corporation
    Inventors: Miroslav Florek, Libor Majer, Emil Hubinak
  • Patent number: 9518916
    Abstract: Disclosed are apparatus and methods for determining a structure or process parameter value of a target of interest on a semiconductor wafer. A plurality of collection patterns are defined for a spatial light beam controller positioned at a pupil image plane of a metrology tool. For each collection pattern, a signal is collected from a sensor of the metrology tool, and each collected signal represents a combination of a plurality of signals that the spatial light beam controller samples, using each collection pattern, from a pupil image of the target of interest. The collection patterns are selected so that the pupil image is reconstructable based on the collection patterns and their corresponding collection signals. The collected signal for each of the collection patterns is analyzed to determine a structure or process parameter value for the target of interest.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: December 13, 2016
    Assignee: KLA-Tencor Corporation
    Inventors: Stilian Ivanov Pandev, Alexander Kuznetsov, Gregory R. Brady, Andrei V. Shchegrov, Noam Sapiens, John J. Hench
  • Patent number: 9515684
    Abstract: According to an embodiment, a receiver includes a voltage controlled oscillator, a frequency-to-digital converter and an input sensitivity controller. In the voltage controlled oscillator, input sensitivity relative to a baseband signal is controlled based on an input sensitivity control signal. The voltage controlled oscillator oscillates at a frequency controlled by a voltage of the baseband signal to generate an oscillation signal. The frequency-to-digital converter performs frequency-to-digital conversion of the oscillation signal to generate a digital signal. The input sensitivity controller generates the input sensitivity control signal based on the digital signal.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: December 6, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tuan Thanh Ta, Akihide Sai, Masanori Furuta
  • Patent number: 9472181
    Abstract: An audio read-out device comprises an audio signal generator, a first information receiver, a first information transmitter, a first controller, and a mixed audio signal generator, and when the first information receiver receives audio output enablement information indicating that audio output is disabled, the first controller causes the mixed audio signal generator to generate a mixed audio signal composed of a broadcast audio signal and causes the first information transmitter to transmit the mixed audio signal until the first information receiver receives audio output enablement information indicating that audio output is enabled; and when the first information receiver receives audio output enablement information indicating that audio output is enabled, the first controller causes the mixed audio signal generator to generate a mixed audio signal obtained by mixing a read-out audio signal and a broadcast audio signal, and causes the first information transmitter to transmit the mixed audio signal.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: October 18, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Takuma Adachi
  • Patent number: 9448162
    Abstract: A single-photon or ultra-weak light multi-D imaging spectral system and method. In order to realize rough time resolution, a time-resolved single-photon counting 2D imaging system for forming color or grey imaging is provided. Moreover, in order to realize high-precision time resolution, the system comprises a light source, an imaging spectral measurement unit, an electric detection unit, a system control unit and an algorithm unit. The light carrying information of an object is imaged on a spatial light modulator and randomly modulated according to compressed sensing theory, emergent light of a grating is collected using a point or array single-photon detector, the number of photons and photon arrival time are recorded, and reconstruction is carried out using the compressed sensing algorithm and related algorithm of the spectral imaging. The system provides single-photon detection sensitivity, high time resolution and wide spectral range, and can be applied in numerous new high-tech industries.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: September 20, 2016
    Assignee: Center for Space Science and Applied Research, Chinese Academy of Sciences
    Inventors: Guangjie Zhai, Wenkai Yu, Xuefeng Liu, Xuri Yao, Chao Wang, Zhibin Sun
  • Patent number: 9420550
    Abstract: A method and apparatus for power control in a wireless communication involves establishing at least two orthogonal sub-channels within a channel for communication and controlling transmitted power in each sub-channel independently.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: August 16, 2016
    Assignee: InterDigital Technology Corporation
    Inventors: Prabhakar R. Chitrapu, Behrouz Aghili, Stephen G. Dick
  • Patent number: 9407477
    Abstract: A method and apparatus for a method and apparatus for correlation canceller for interference mitigation with adaptive DC offset cancellation for a dual mode communication device includes detecting an active signal transmitting in one mode; configuring integrators associated with the adaptive correlation canceller into gain amplifiers; detecting DC offset utilizing the gain amplifiers and comparators; and configuring the integrators from the gain amplifiers back to integrators with the DC offset applied thereto. The active signal transmitting in one mode can be Long Term Evolution (LTE) which is adjacent to a signal in another mode.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: August 2, 2016
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Mark Rozental, Nir Corse, Kevin G. Doberstein, Josh E. Dorevitch, Baruh Hason, Claudine Tordjman
  • Patent number: 9392355
    Abstract: An electronic device may be configurable to operate in a scrambling mode and a non-scrambling mode while processing chat audio and microphone audio for a first player participating in an online multiplayer game via a game console. While operating in the non-scrambling mode, the electronic device may be configured to transmit the microphone audio to the game console without scrambling the microphone audio. While operating in the scrambling mode, the electronic device may be configured to scramble the microphone audio and transmit the scrambled microphone audio to the game console. The electronic device may be operable to select a scrambling key used to scramble the microphone audio based on a signal received by the electronic device that indicates a role of the player in the online multiplayer game. The role of the player may correspond to which of two or more opposing teams the first player is a member of in the online multiplayer game.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: July 12, 2016
    Assignee: Voyetra Turtle Beach, Inc.
    Inventor: Richard Kulavik
  • Patent number: 9386540
    Abstract: A method and apparatus for power control in a wireless communication involves establishing at least two orthogonal sub-channels within a channel for communication and controlling transmitted power in each sub-channel independently.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: July 5, 2016
    Assignee: InterDigital Technology Corporation
    Inventors: Prabhakar R. Chitrapu, Behrouz Aghili, Stephen G. Dick
  • Patent number: 9361895
    Abstract: Provided is an audio encoding method. The audio encoding method includes: acquiring envelopes based on a predetermined sub-band for an audio spectrum; quantizing the envelopes based on the predetermined sub-band; and obtaining a difference value between quantized envelopes for adjacent sub-bands and lossless encoding a difference value of a current sub-band by using a difference value of a previous sub-band as a context. Accordingly, the number of bits required to encode envelope information of an audio spectrum may be reduced in a limited bit range, thereby increasing the number of bits required to encode an actual spectral component.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: June 7, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Anton Porov, Konstantin Osipov, Ki-hyun Choo
  • Patent number: 9300865
    Abstract: An image processing system comprises a filter associated with a sensor array, which is operable to capture an image. The filter is provided to separate a plurality of distinct qualities of light from the scene to be captured. The filter has filter portions associated with the plurality of distinct qualities of light which are spatially pseudo-randomly ordered relative to each other. The image processing system also comprises an image reconstruction algorithm specifically designed to operate with the filter.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: March 29, 2016
    Assignee: Goodrich Corporation
    Inventors: Hongcheng Wang, Alan Matthew Finn, Serge L. Shishkin, Sergei F. Burlatsky
  • Patent number: 9224398
    Abstract: Apparatus comprising at least one processor and at least one memory including computer code, the at least one memory and the computer code configured to with the at least one processor cause the apparatus to at least perform: transforming an audio signal into a sparse domain signal, the sparse domain signal representing the audio signal; transforming the sparse domain signal into a measurement domain signal; determining a sampling pattern dependent on the measurement domain signal; and measuring the measurement domain signal dependent on the sampling pattern.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: December 29, 2015
    Assignee: Nokia Technologies Oy
    Inventor: Juha Petteri Ojanpera
  • Patent number: 9225565
    Abstract: A device for generating a vector-modulated output signal based on a baseband signal having an in-phase component and a quadrature component, a first LO signal for the in-phase component of the baseband signal and a second LO signal for the quadrature component of the baseband signal comprises a baseband combination circuit, which is configured to combine the in-phase component and the quadrature component in order to obtain a plurality of combined IQ signals. Furthermore, the device includes a plurality of mixer cells for generating the vector-modulated output signal, based on the combined IQ signals, the first LO signal and the second LO signal.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 29, 2015
    Assignee: Intel Deutschland GmbH
    Inventors: Martin Simon, Hans Geltinter
  • Patent number: 9210663
    Abstract: A method and apparatus for power control in a wireless communication involves establishing at least two orthogonal sub-channels within a channel for communication and controlling transmitted power in each sub-channel independently.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: December 8, 2015
    Assignee: InterDigital Technology Corporation
    Inventors: Prabhakar R. Chitrapu, Behrouz Aghili, Stephen G. Dick
  • Patent number: 9173190
    Abstract: The disclosure relates to systems and methods for controlling a delay probability distribution associated with receiving a response to a page. The method entails performing a series of page operations, wherein each page operation entails transmitting a page and scanning for a page response. The method further entails adjusting at least one timing parameter associated with performing the series of page operations based on a characteristic of one or more scans for the page performed by the at least one remote device. The characteristic may be the period of periodic page scans performed by the at least one remote device.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: October 27, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Edward Harrison Teague, Qingjiang Tian, David Jonathan Julian, Zhanfeng Jia
  • Patent number: 9124755
    Abstract: Compressive imaging apparatus employing multiple modulators in various optical schemes to generate the modulation patterns before the signal is recorded at a detector. The compressive imaging apparatus is equally valid when applying compressive imaging to structured light embodiments where the placement is shifted from the acquisition path between the subject and the detector into the illumination path between the source and the subject to be imaged.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: September 1, 2015
    Assignee: William Marsh Rice University
    Inventors: Kevin F. Kelly, Richard G. Baraniuk, Gary Woods, Ting Sun, Matthew Turner
  • Patent number: 9020065
    Abstract: A radio frequency (RF) front end having group delay mismatch reduction is provided. One embodiment provides a first feed forward path and a second feed forward path. The second feed forward path is electrically in parallel with the first feed forward. The second feed forward path has a first signal path and a second signal path. The first and second signal paths are arranged to be electrically in parallel. The first signal path has a digital filter. The second signal path has a tunable analog filter. The tunable analog filter operates to reduce a delay associated with the second feed forward path as compared with a delay associated with the first feed forward path.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: April 28, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Mark William Wyville
  • Patent number: 9008158
    Abstract: Disclosed uses a digital to analog converter and an analog to digital converter that process a low bit for processing of a data signal at high speed according to analog to digital conversion and digital to analog conversion in a communication system and an analog to digital converter that processes high bit for processing of a signal for synchronization acquisition at low speed.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: April 14, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kwang-Seon Kim, Bong-Su Kim, Min-Soo Kang, Woo-Jin Byun
  • Publication number: 20140369392
    Abstract: In one example embodiment, a communication system includes a remote unit configured to convert a plurality of signals, received at the remote unit from a plurality of end devices, into a plurality of first digital signals regardless of a bandwidth occupied by any of the plurality of signals. The communication system further includes a central unit configured to generate a plurality of second digital signals by processing the plurality of first digital signals received from the remote unit and transmit the plurality of second digital signals back to the remote unit, to be transmitted to the plurality of end devices.
    Type: Application
    Filed: June 13, 2013
    Publication date: December 18, 2014
    Applicant: ALCATEL-LUCENT USA INC.
    Inventors: Sian Chong LEE, Noriaki KANEDA
  • Patent number: 8885690
    Abstract: Various embodiments are disclosed relating to power control techniques for wireless transmitters. In an example embodiment, an apparatus is provided that may include a digital-to-analog converter (DAC) adapted to convert a digital amplitude signal to an analog amplitude signal during a first transmission mode and adapted to convert a digital power level signal to an analog power level signal during a second transmission mode.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: November 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Alireza Zolfaghari, Henrik Tholstrup Jensen, Hooman Darabi
  • Patent number: 8837627
    Abstract: A method of reducing signal correlation in a symmetrical adaptive canceller link comprising spectrally inverting one of a first carrier signal and a second carrier signal by causing a spectral inversion of one of the first and second carrier signals using a modulator, transmitting the first and second carrier signals within a bandwidth to a remote receiver using a transmitting device such that a composite carrier signal results, and cancelling at least one of the first carrier signal from the composite carrier signal using a cancellation technique such that the second carrier signal results on one end of the link and the second carrier signal from the composite carrier signal using a cancellation technique such that the first carrier signal results on the opposite end of the link.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: September 16, 2014
    Assignee: Comtech EF Data Corp.
    Inventors: Richard Hollingsworth Cannon, Louis Dubin, Cris Mamaril
  • Patent number: 8811517
    Abstract: The present invention relates to a method for sending a data signal from a transmitter to a receiver in a multiple antenna wireless communication system. In particular, the method comprises: sending information about the number of transmission antennas of the transmitter to the receiver; receiving from the receiver information about the number of effective communication links of the transmitter and the receiver; determining a precoding matrix based on the information about the number of effective communication links; and receiving from the receiver the data signal using the precoding matrix, wherein transmission antennas of the transmitter and receiving antennas of the receiver respectively form effective communication links independent of each other.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: August 19, 2014
    Assignee: LG Electronics Inc.
    Inventors: Bin Chul Ihm, Ji Won Kang, Sung Ho Park, Wook Bong Lee, Moon Il Lee
  • Patent number: 8804750
    Abstract: There is provided a field device performing a communication through a communication line. The field device includes: first circuits involved with a smart communication; second circuits involved with a fieldbus communication; a token detecting circuit that detects a token in the fieldbus communication; and a control circuit. The control circuit is operable to: i) cause the second circuits to operate when the token is detected within a given time by the token detecting circuit; and ii) cause the second circuits not to operate when the token is not detected within the given time by the token detecting circuit.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: August 12, 2014
    Assignee: Yokogawa Electric Corporation
    Inventor: Seiichiro Takahashi
  • Patent number: 8731490
    Abstract: In transmitter modules or power amplifier (PA) modules there is at least a possible path for a second and even a third harmonic of a low band to crossover unfiltered into the high band path and reach the antenna and hence cross band isolation is necessary. Forward isolation is necessary in order to limit the input crossing over the PAs into the antenna port. According to the methods and the circuits such cross band isolation and forward isolation is improved by detuning the filter and matching network at the output of the PA. The circuit comprises a trap at the harmonic frequencies of the low band thereby at least reducing the impacts of the cross band and forward isolation.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: May 20, 2014
    Assignee: RF Micro Devices (Cayman Islands), Ltd.
    Inventors: Malcolm Smith, Ying Shi
  • Patent number: 8705592
    Abstract: Disclosed herein are a data transmission apparatus, a data reception apparatus, and a data transmission method. The data transmission apparatus, the data reception apparatus, and the data transmission method are capable of simplifying the circuit structure of a decoder because an assumption of the time related to a request signal and a data signal is not necessary and an additional logic for generating a clock signal for the decoder is not necessary by using a Finite State Machine (FSM) logic without storing a state via a delay device.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: April 22, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Myeong-Hoon Oh, Chi-Hoon Shin, Sung-Nam Kim, Seong-Woon Kim
  • Patent number: 8693971
    Abstract: A receiver is configured to receive a receive signal including a plurality of signal components, each signal component indicating a channel of an antenna port and an associated scrambling sequence, wherein a first one of the channels indicated by a first one of the signal components which is based on a first scrambling sequence is allocated to the receiver for data reception and a second one of the channels indicated by a second one of the signal components which is based on a second scrambling sequence different from the first scrambling sequence is interfering with the allocated channel. The receiver includes an interference reduction unit configured to combine an estimate of the first one of the signal components and an estimate of the second one of the signal components to provide an interference-reduced signal.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: April 8, 2014
    Assignee: Intel Mobile Communications GmbH
    Inventors: Rajarajan Balraj, Biljana Badic, Tobias Scholand
  • Patent number: 8630365
    Abstract: One embodiment of the present invention relates to a transceiver. The transceiver includes a transmitter having a first transmission path configured to transmit a digital baseband signal over a wireline medium. In addition, the transmitter has a second transmission path configured to transmit a radio frequency signal over a wireless medium. Other systems and methods are also disclosed.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: January 14, 2014
    Assignee: Lantiq Deutschland GmbH
    Inventors: Norbert Neurohr, Axel Clausen, Vladimir Oksman
  • Patent number: 8582497
    Abstract: Certain embodiments of the invention may be found in a method and system for minimizing power consumption in a communication system. Exemplary aspects of the invention may comprise configuring a supply voltage of an amplifier to enable communication of data using a first communication protocol during a first timeslot in a TDM frame, reconfiguring the supply voltage of the amplifier to enable communication of data using a different communication protocol, and adjusting the supply voltage of the amplifier in proportion to the envelope of a baseband signal conforming to one of the communication protocols. The first and second communication protocols may conform to various communication protocols, such as WCDMA, HSDPA, HSUDPA, GSM, GPRS, EDGE, WiMAX, OFDM, UWB, ZigBee, and Bluetooth. The baseband signal may be delayed by a number of samples before being input into the amplifier.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: November 12, 2013
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza Rofougaran
  • Patent number: 8565352
    Abstract: Digital IQ imbalance compensation is utilized for a dual-carrier double conversion receiver. First, the effect of IQ imbalance on OFDM-based digital baseband is analyzed, showing that, in the presence of IQ imbalance, the baseband signal of each carrier is obtained from its own branch as well as the other branch. Second, IQ imbalance parameters of interest are estimated using pilot signals and compensated using only digital baseband processing.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: October 22, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Chester Park, Niklas Andgart
  • Patent number: 8565341
    Abstract: In general, according to one embodiment, a power amplifier includes an envelope detector, a limiter, and a combiner. The envelope detector is configured to sense an envelope component of an input signal. The limiter includes a PMOS (Positive channel Metal Oxide Semiconductor) transistor and an NMOS (Negative channel Metal Oxide Semiconductor) transistor. The PMOS transistor is configured to sense a phase component of the input signal. The phase component has a second-order distortion controlled within a predetermined range with respect to the input signal. The NMOS transistor is configured to sense a phase component of the input signal. The phase component has the same second-order distortion as the phase component sensed by the PMOS transistor. The combiner is configured to combine the envelope component sensed by the envelope detector and the phase component sensed by the limiter to generate an output signal.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: October 22, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Shouhei Kousai
  • Patent number: 8532592
    Abstract: A mixed-signal adaptive integrated circuit may comprise a primary function circuit, a digitally controlled analog sub-system cooperatively connected with the primary function circuit, and an on-chip signal analyzer. The on-chip signal analyzer may be arranged to analyze RF signals. The signal analyzer may comprise at least one multiplexor for selecting selected RF signals for comparison and analysis, and may comprise a digital signal processor (DSP) for analyzing the selected RF signals and adjusting at least one operational parameter of the digitally controlled analog sub-system responsive to the analysis.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: September 10, 2013
    Assignee: Scintera Networks, Inc.
    Inventors: Qian Yu, Abhijit G. Shanbhag, Yan Wang
  • Patent number: 8519877
    Abstract: A circuit for providing audio signals to a load such as a speaker is provided that uses the speaker or headphone amplifier structure as a current to voltage converter, thereby eliminating a separate current to voltage converter from the circuit. Such a design removes one of the elements that creates noise in the circuit architecture and improves the dynamic range for the audio signal. For example, the output of a digital to analog converter is a single ended output provided to the speaker or headphone amplifier. The digital to analog converter can include a series of current sources that are summed up to provide the single ended output. Where the current sources have positive and negative current source mismatch, a feedback mechanism is employed to correct for the mismatch and reduce introduction of harmonic noise into the signal through the digital to analog converter.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: August 27, 2013
    Assignee: Texas Instruments Incorporated
    Inventor: Shailendra Kumar Baranwal
  • Patent number: 8473284
    Abstract: A voice encoding/decoding method and apparatus. A voice encoder includes: a quantization selection unit generating a quantization selection signal; and a quantization unit extracting a linear prediction coding (LPC) coefficient from an input signal, converting the extracted LPC coefficient into a line spectral frequency (LSF), quantizing the LSF with a first LSF quantization unit or a second LSF quantization unit based on the quantization selection signal, and converting the quantized LSF into a quantized LPC coefficient. The quantization selection signal selects the first LSF quantization unit or second LSF quantization unit based on characteristics of a synthesized voice signal in previous frames of the input signal.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: June 25, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kangeun Lee, Hosang Sung, Kihyun Choo