Systems Using Alternating Or Pulsating Current Patents (Class 375/259)
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Patent number: 9225400Abstract: A method and apparatus for processing feedback implemented in a wireless transmit/receive unit (WTRU) comprises estimating a channel matrix. The effective channel is calculated and a precoding matrix is selected. Feedback bits are generated and transmitted.Type: GrantFiled: June 27, 2014Date of Patent: December 29, 2015Assignee: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Kyle Jung-Lin Pan, Allan Y. Tsai
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Patent number: 9219626Abstract: In order to make it possible to suppress attenuation of a data signal waveform without extra power consumption in high-speed transmission by using a high-speed clock, a data transmission system of the present invention includes a sending unit that outputs a reference signal generated by delaying a clock signal and a modulation signal which is either a signal the phase of which is delayed with respect to the reference signal in accordance with a state of a data signal or the clock signal, a transmission unit that transmits the reference signal and modulation signal, a peaking unit that suppress a development of peaking by applying inductor peaking to a signal on a transmission path, and a receiving unit that demodulates the data signal by detecting a phase difference between the reference signal and the modulation signal and outputs information on the data signal.Type: GrantFiled: September 24, 2014Date of Patent: December 22, 2015Assignee: NEC CorporationInventor: Hiroshi Yamaguchi
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Patent number: 9210617Abstract: A method for a user equipment sending an uplink resource scheduling request in a long term evolution mobile communication system and the user equipment thereof are provided. The present invention relates to a technique for the user equipment sending the uplink resource scheduling request in a long term evolution system, for reducing the user data transmission delay. The embodiments of the present invention set the minimum alternative option of the scheduling request transmission cycle configuration parameter as 2 ms or 1 ms, that is to say, add 2 ms or 1 ms, or 2 ms and 1 ms to the alternative option of the scheduling request transmission cycle configuration parameter, therefore, improving the flexibility of the whole system in the scheduling request transmission cycle configuration. When the data delay is required to be less, the user data transmission delay can be reduced, by using the 2 ms or 1 ms scheduling request transmission cycle configuration, to the delay requirement of 10 ms as close as possible.Type: GrantFiled: September 15, 2010Date of Patent: December 8, 2015Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGYInventors: Xueming Pan, Guoqing Li, Yanan Lin
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Patent number: 9203637Abstract: A device translates a script command related to audio streaming in a network, and generates or receives an audio stream based on the translated script to test the network.Type: GrantFiled: December 15, 2006Date of Patent: December 1, 2015Assignee: Verizon Patent and Licensing Inc.Inventor: Brian Bonnett
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Patent number: 9193474Abstract: A system, method, and computer readable medium directed to communication with a remote component in an aircraft environment are described. The system includes the remote component in the aircraft environment to control a single phase alternating or direct current input drawn from a constant voltage power source, and a controller in the aircraft environment configured to monitor the current input to the remote component and determine a message from the remote component based on a current pattern in the current input.Type: GrantFiled: June 6, 2013Date of Patent: November 24, 2015Assignee: HAMILTON SUNDSTRAND CORPORATIONInventor: Kyle Stephen Ives
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Patent number: 9184832Abstract: Concept for transmitting payload data from a transmitter to a receiver via a communication channel within a time interval, wherein channel-coded data packets are generated from the payload data, wherein each of the channel-coded data packets has packet core data corresponding to a packet identification of the respective channel-coded data packet, and wherein the packet core data is coded with a channel code of higher redundancy than the payload data. The channel-coded data packets are sent without any return channel to the receiver, which decodes packet core data of a first received channel-coded data packet of the time interval.Type: GrantFiled: January 14, 2013Date of Patent: November 10, 2015Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Gerd Kilian, Andreas Tasch, Josef Bernhard, Wolfgang Koch, Patrick Nickel, Wolfgang Gerstacker
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Patent number: 9160461Abstract: A frequency source, such as for a wireless communications device, configured to have a duty cycle adjustment. A selected harmonic spur resulting from operation of the frequency source at one duty cycle may be avoided or minimized by operating the frequency source at a second duty cycle. Determination of the appropriate duty cycle may be based on measuring the amplitude of the harmonic spur as it appears in the output of a receive chain of the wireless device. Alternatively, the duty cycle may be set to desired value to avoid or minimize a given harmonic.Type: GrantFiled: January 10, 2013Date of Patent: October 13, 2015Assignee: Qualcomm IncorporatedInventors: Justin A. Hwang, David Su
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Method for reporting channel state information in wireless communication system, and device therefor
Patent number: 9154988Abstract: The present invention relates to a wireless communication system. Particularly, the present invention relates to a method and a device for reporting channel state information, the method comprising the steps of: carrying out operations for periodic reporting of a first channel state information item; and carrying out operations for periodic reporting of a second channel state information item, wherein the period for reporting the first channel state information item is longer than the period for reporting the second channel state information item, and the second channel state information item is determined on the basis of the first channel state information item.Type: GrantFiled: November 30, 2011Date of Patent: October 6, 2015Assignee: LG Electronics Inc.Inventors: Jonghyun Park, Hakseong Kim, Hanbyul Seo, Seungmin Lee, Kijun Kim, Hyungtae Kim -
Patent number: 9154252Abstract: In bus communications methods and apparatus, a first set of physical signals representing the information to be conveyed over the bus is provided, and mapped to a codeword of a sparse signaling code, wherein a codeword is representable as a vector of a plurality of components, some of which are quiescent components and some of which are non-quiescent components, wherein the number of quiescent components and non-quiescent components meet a sparseness requirement.Type: GrantFiled: February 10, 2014Date of Patent: October 6, 2015Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Harm Cronie, Amin Shokrollahi, Armin Tajalli
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Transceiver and communication apparatus transmitting and receiving data encoded by transmission code
Patent number: 9154175Abstract: A transceiver that transmits and receives data used in a communication system, in which the data is encoded by a transmission line code and a signal level of the transmission code changes at a predetermined transition timing in a bit-duration. The transceiver includes: a clock generator that generates an internal clock used for internal circuits; a timing generator that generates, by using the internal clock generated by the clock generator, a timing signal synchronized to a reference clock supplied externally; an encoding circuit that encodes, by using the timing signal generated by the timing generator, a transmission data which is synchronized to the reference clock to be the transmission line code; and a waveform shaping unit that performs a waveform shaping of a waveform at the predetermined transition timing of the transmission data to be based on the reference clock.Type: GrantFiled: December 19, 2013Date of Patent: October 6, 2015Assignees: DENSO CORPORATION, ANDEN CO., LTD.Inventors: Hideki Kashima, Tomohisa Kishigami, Naoji Kaneko, Nobutomo Takagi -
Patent number: 9143374Abstract: In a phased-array communications system with a distributed processing architecture, channelized beamforming is used to minimize sampling and computational requirements, as well as reduce the data rates required for the communication of data and control information between system components. A central processor within the phased array system performs parallelized synthesis of channelized beams to form beams composite beams in sub-bands that overlap multiple channels. The phased array system incorporates a flexible scheme for channelization, channelized beamforming, and synthesis so that any number of composite beams may be synthesized in parallel at any one time. The system is capable of simultaneously processing beams that occupy overlapping subbands, and does not require restriction on the bandwidths or center frequencies of the subbands which the beams occupy.Type: GrantFiled: December 5, 2014Date of Patent: September 22, 2015Assignee: Cubic CorporationInventor: Wayne Edward Richards
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Patent number: 9135385Abstract: As consistent with one or more embodiments, electronic circuitry is characterized to provide an indication of susceptibility of the circuitry to error. As consistent with one or more embodiments, bits corresponding to a circuit component of a circuit design are evaluated using a software program that characterizes a hardware description language representing the circuit components and their interconnectivity. A noise power value is calculated for each bit, and bits are identified as being susceptible to data error based upon the noise power value and a signal-to-noise (SNR) ratio reference value. A characterization of the circuit components (e.g., a quality factor) is provided based upon a number of bits susceptible to data errors.Type: GrantFiled: November 25, 2013Date of Patent: September 15, 2015Assignee: NXP B.V.Inventors: Sujan Pandey, Abhijit Kumar Deb, Hubertus Gerardus Hendrikus Vermeulen
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Patent number: 9130720Abstract: Disclosed in the present invention is a method for a base station to set a backhaul link subframe for a relay node in a wireless communication system, to which a carrier aggregation technique is applied.Type: GrantFiled: October 8, 2013Date of Patent: September 8, 2015Assignee: LG Electronics Inc.Inventors: Seungmin Lee, Hakseong Kim, Hanbyul Seo
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Patent number: 9124399Abstract: Circuitry for use in a receiver may comprise: a front-end circuit operable to receive an orthogonal frequency division multiplexing (OFDM) symbol on a first number of physical subcarriers. The circuitry may comprise a decoding circuit operable to decode the OFDM symbol using an inter-carrier interference (ICI) model, the decoding resulting in a determination of a sequence of symbols, comprising a second number of symbols, that most-likely correspond to the received OFDM symbol, where the second number is greater than the first number. The sequence of symbols may comprise N-QAM symbols, N being an integer. The ISCI model may be based, at least in part, on non-linearity experienced by the OFDM symbol during transmission by a transmitter, propagation over a channel, and/or reception by the receiver. The ISCI model may be based, at least in part, on phase-noise introduced to the OFDM symbol during transmission by a transmitter, propagation over a channel, and/or reception by the receiver.Type: GrantFiled: May 27, 2014Date of Patent: September 1, 2015Assignee: MagnaCom Ltd.Inventors: Amir Eliaz, Ilan Reuven
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Patent number: 9106369Abstract: A method of controlling the data rate of a data transmission between an emitter and a receiver, wherein data rate adaptation control commands may be sent using a return path from the receiver to the emitter, which comprises monitoring at least one receiving condition at the receiver; determining at least one threshold on said receiving conditions to trigger data rate adaptation control commands; estimating the transmission time of the data rate adaptation control commands from the receiver to the emitter and adjusting the threshold on these receiving conditions to trigger data rate adaptation control commands based on said estimation of the transmission time from the receiver to the emitter. Accordingly, by continuously adjusting at least one said triggering threshold according to the variation of the transmission time of said data rate adaption commands, a more efficient data rate adaptation method is obtained minimizing the adaptation needs.Type: GrantFiled: September 16, 2013Date of Patent: August 11, 2015Assignee: Canon Kabushiki KaishaInventors: Brice Le Houerou, Arnaud Closset
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Patent number: 9100047Abstract: A method for reducing noise on a power distribution network of a printed circuit board includes determining whether a given data signal may be a problematic data signal. The given data signal is issued onto a signal distribution network of the printed circuit board if the given data signal is determined to not be a problematic data signal. The given data signal is encoded into an encoded data signal if the given data signal is determined to be a problematic data signal, and the encoded data signal is issued onto the signal distribution network.Type: GrantFiled: September 20, 2013Date of Patent: August 4, 2015Assignee: Intel CorporationInventors: Alberto Alcocer Ochoa, Jose A. Sanchez Sanchez, Dawson W. Kesling, Maynard C. Falconer, Antonio Zenteno Ramirez
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Patent number: 9100973Abstract: A wireless communication device comprises a wide area transceiver, an auxiliary receiver, a plurality of antennas for use by said auxiliary receiver and said wide area transceiver, and an antenna selection circuit. The antenna selection circuit selects an antenna configuration for the auxiliary receiver and the wide area transceiver. The antenna selection circuit is configured to measure a link quality for one or more of antennas used by the auxiliary receiver, and select an antenna configuration for the wide area transceiver based on the link quality measurements for the auxiliary receiver.Type: GrantFiled: November 19, 2012Date of Patent: August 4, 2015Assignees: Sony Corporation, Sony Mobile Communications ABInventors: Pär Håkansson, Patrik Lundell, Johan Lundqvist
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Patent number: 9083582Abstract: In a multi transmitter-receiver system, transmitter noise cancellation may be applied selectively for certain transmitters by exploiting asymmetries of the system. Hence, observation receiver(s) numbering less than the number of transmitters may be provided saving space and cost. Each observation receiver may selectively couple to a transmitter path and estimate the leakage noise from that transmitter. Based on the estimated leakage noise, noise cancellation may be applied to corresponding receiver path(s). Selection of the transmitters for leakage estimation may be based on system conditions at that time, which may be known to the system or may be estimated dynamically.Type: GrantFiled: January 30, 2014Date of Patent: July 14, 2015Assignee: ANALOG DEVICES GLOBALInventors: Dzianis Lukashevich, Patrick Pratt
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Patent number: 9083404Abstract: Methods and systems for transmission are shown that include iteratively generating an optimized precoder matrix and optimized linear filters for multiple receivers, where the optimized precoder matrix is based on a linear filter from a previous iteration and the optimized linear filters the multiple receivers are based on a precoder matrix from a previous iteration, precoding an input stream using the iteratively generated optimized precoder matrix to produce transmission streams for the multiple receivers, where at least one receiver has a plurality of associated transmission streams, and transmitting the transmission streams with multiple antennas to the receivers.Type: GrantFiled: September 16, 2011Date of Patent: July 14, 2015Assignee: NEC Laboratories America, Inc.Inventors: Mohammad A. Khojastepour, Mohammad A. Khajehnejad, Guosen Yue
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Patent number: 9083497Abstract: Disclosed in the present invention is a method for a base station to set a backhaul link subframe for a relay node in a wireless communication system, to which a carrier aggregation technique is applied.Type: GrantFiled: February 29, 2012Date of Patent: July 14, 2015Assignee: LG Electronics Inc.Inventors: Seungmin Lee, Hakseong Kim, Hanbyul Seo
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Patent number: 9078279Abstract: A method and system for providing control information for supporting high speed downlink and high speed uplink packet access are disclosed. A Node-B assigns at least one downlink control channel and at least one uplink control channel to a wireless transmit/receive unit (WTRU). The downlink control channel and the uplink control channel are provided to carry control information for both the downlink and the uplink. Conventional control channels for downlink and uplink are combined into a reduced set of control channels for uplink and downlink. The Node-B and the WTRU communicate control information via the downlink control channel and the uplink control channel. The WTRU receives downlink data and transmits uplink data, and the Node-B receives uplink data and transmits downlink data based on the control information transmitted via the downlink control channel and the uplink control channel.Type: GrantFiled: May 22, 2012Date of Patent: July 7, 2015Assignee: InterDigital Technology CorporationInventors: Arty Chandra, Stephen E. Terry
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Patent number: 9053699Abstract: A method and apparatus provide for audio frame recovery by identifying a sequence of lost frames of coded audio data as being lost or corrupted; identifying a first frame of coded audio data which immediately preceded the sequence of lost frames, as having been encoded using a time domain coding method; identifying a second frame of coded audio data, which immediately followed the sequence of lost frames of coded audio data, as having been encoded using a transform domain coding method; obtaining a pitch delay; generating a second decoded audio portion of the second frame based on the second frame; generating a first decoded audio portion of the second frame based on the pitch delay and decoded audio samples; and generating a decoded audio output of the second frame based on a sequential combination of the first and second decoded audio portions.Type: GrantFiled: July 10, 2012Date of Patent: June 9, 2015Assignee: GOOGLE TECHNOLOGY HOLDINGS LLCInventors: Udar Mittal, James P. Ashley
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Patent number: 9054904Abstract: A receiving apparatus for an RFID reader estimates channel coefficients for each of a plurality of receiving antennas based on tag response signals received via a plurality of receiving antennas, compensates the tag response signals received via the plurality of receiving antennas based on the channel coefficients estimated for each of a plurality of channel estimators, combines the compensated tag response signals for each of the plurality of receiving antennas to generate a combined signal, and detect bits in the combined signal.Type: GrantFiled: June 20, 2014Date of Patent: June 9, 2015Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jae-young Jung, Sang Hyun Mo, Won Kyu Choi, Hoe-Sung Yang, Chan-Won Park, Cheol Sig Pyo
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Patent number: 9048904Abstract: A method for transmitting channel status information (CSI) via uplink in a wireless communication system includes transmitting a first precoding matrix indicator (PMI) and a second PMI at a subframe. A subsampled codebook for each of a precoding codebook for Rank-1 and a precoding codebook for Rank-2 is determined based on at least the first PMI or the second PMI. In case of the Rank-1 or the Rank-2, a number of elements for the first PMI is 8.Type: GrantFiled: December 2, 2013Date of Patent: June 2, 2015Assignee: LG ELECTRONICS INC.Inventors: Hyunsoo Ko, Sunam Kim, Dongguk Lim, Moonil Lee, Jaehoon Chung
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Patent number: 9048891Abstract: A multi-tiered CSI vector quantizer (VQ) is provided for time-correlated channels. The VQ operates by quantizing channel state information by reference to both the current channel state information and a prior channel state quantization. A system is also provided that uses multi-tiered CSI quantizers. Enhanced signaling between the transmitter and receivers is provided in order to facilitate the use of multi-tiered CSI quantizers.Type: GrantFiled: April 8, 2011Date of Patent: June 2, 2015Assignee: Wi-LAN Inc.Inventors: Bartosz Mielczarek, Witold A. Krzymien
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Patent number: 9042474Abstract: Methods and apparatuses for information feedback and precoding have been provided. A method for processing communication data at a user equipment in a wireless communication system may comprise: deriving a spatial correlation matrix R of multiple transmit antennas of a base station based on an obtained downlink channel transmission matrix H; transforming a precoding codebook F according to the spatial correlation matrix R; selecting a precoding matrix Fs based on the transformed precoding codebook; and feeding back information about the spatial correlation matrix R and information about the selected precoding matrix Fs to the base station.Type: GrantFiled: April 7, 2010Date of Patent: May 26, 2015Assignee: Alcatel LucentInventors: Jinhui Chen, Hongwei Yang, Di Lv, Yang Song
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Patent number: 9042497Abstract: A system that incorporates the subject disclosure may include, for example, a process that includes adjusting a filter in electrical communication between an input terminal and a demodulator. The filter is applied to an information bearing signal, e.g., to mitigate interference, received at the input terminal, resulting in a filtered signal. An error signal is received, indicative of errors detected within information obtained by demodulation of a modulated carrier of the filtered signal. A modified filter state is determined in response to the error signal and the filter is adjusted according to the modified filter state, e.g., to improve mitigation of the interference. Other embodiments are disclosed.Type: GrantFiled: August 9, 2013Date of Patent: May 26, 2015Assignee: ISCO International, LLCInventors: Amr Abdelmonem, Mikhail Galeev, Sean S. Cordone, Howard Wong
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Patent number: 9042465Abstract: An apparatus and method for updating channel information in a mobile communication terminal supporting Digital Multimedia Broadcasting (DMB) are provided. The method includes sending a broadcasting information request to an Over The Air (OTA) server over a mobile communication network, receiving broadcasting information from the OTA server over the mobile communication network, and updating stored broadcasting information based on the received broadcasting information.Type: GrantFiled: March 24, 2011Date of Patent: May 26, 2015Assignee: Samsung Electronics Co., Ltd.Inventor: Dong-Hyeon Kim
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Patent number: 9042462Abstract: Transport of differential signals is provided. In one aspect, a telecommunications system includes a first unit and a second unit. The first unit can calculate a differential signal from an original signal. The differential signal can represent a change in signal levels between constant time intervals in the original signal. The second unit can estimate the original signal from the differential signal received from the first unit over a communication medium.Type: GrantFiled: April 24, 2013Date of Patent: May 26, 2015Assignee: COMMSCOPE TECHNOLOGIES LLCInventor: Van E. Hanson
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Patent number: 9042466Abstract: A wireless communication device including a transceiver, a medium access control device, a first module and a second module. The transceiver is configured to receive a signal on a channel. The medium access control device is configured to determine a parameter, wherein the parameter is a rank of a matrix of the channel, an angle of array of the signal, a packet error rate of the signal, a frame error rate of the signal, or a signal-to-noise ratio of the signal. The first module is configured to, based on the parameter, determine whether an operating environment of the wireless communication device is a rich-scattering environment or a line of sight environment. The second module is configured to adjust a bandwidth of the wireless communication device based on the operating environment as determined by the first module.Type: GrantFiled: January 21, 2014Date of Patent: May 26, 2015Assignee: Marvell International Ltd.Inventors: Hui-Ling Lou, Kok-Wui Cheong, Randy Tsang
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Publication number: 20150139293Abstract: A receiving device is provided to coordinate transmissions from a first transmitting device and from a second transmitting device of a plurality of transmitting devices to the receiving device in a communication network.Type: ApplicationFiled: September 30, 2014Publication date: May 21, 2015Inventors: Kenneth L. Stanwood, David Gell, Murat Karsi
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Patent number: 9037881Abstract: A method of power flow mapping in a datacenter includes encoding, by a power supply unit of the datacenter, identification information that uniquely identifies the power supply unit, and modulating the encoded identification information onto a power cable, wherein the power supply unit receives operating power via the power cable. Modulating the encoded information onto the power cable further includes changing a voltage internal to the power supply unit to create a current change in the power cable.Type: GrantFiled: October 12, 2012Date of Patent: May 19, 2015Assignee: Dell Products, LPInventors: Abey K. Mathew, John J. Breen, III, Mark A. Muccini
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Patent number: 9036724Abstract: A data signal correction circuit includes a channel characteristic calculator unit configured to calculate a channel characteristic estimate value of a received data signal on the basis of a pilot signal, a path detector unit configured to determine a delay quantity of multipath propagation of the received data signal on the basis of the calculated channel characteristic estimate value, and an adaptive filter configured to receive the delay quantity and the channel characteristic estimate value as input items, adjust an input interval of the channel characteristic estimate value along a carrier frequency axis in accordance with the delay quantity, and perform adaptive equalization on the channel characteristic estimate value inputted to the adaptive filter at the adjusted input interval.Type: GrantFiled: February 12, 2014Date of Patent: May 19, 2015Assignees: FUJITSU SEMICONDUCTOR LIMITED, FUJITSU LIMITEDInventors: Hiroaki Takagi, Masataka Umeda, Naoto Adachi
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Patent number: 9036723Abstract: A training symbol with two identical halves as well as a pilot-tone at a center frequency is used for both timing synchronization and carrier frequency offset estimation. A timing synchronization is achieved by finding a peak of a cross-correlation function of the two halves in the first symbol. A fraction part of the frequency offset FO is then calculated from a phase difference between the two halves of the first training symbol. Then, the received signal is compensated for the fraction part of FO, and, an integer part of the FO is obtained by counting the shifted positions of the pilot-tone peak in the frequency domain.Type: GrantFiled: September 20, 2013Date of Patent: May 19, 2015Assignee: NEC Laboratories America, Inc.Inventors: Shaoliang Zhang, Ting Wang
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Patent number: 9036727Abstract: A precoding codebook matrix/vector of length 2L is generated by the selection of two matrices/vectors, each from one of a predetermined set of L×L matrices and multiplying each column of one of the matrices/vectors by a complex coefficient.Type: GrantFiled: February 11, 2011Date of Patent: May 19, 2015Assignee: Koninklijke Philips N.V.Inventors: Milos Tesanovic, Timothy James Moulsley, Choo Chiap Chiau
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Patent number: 9037094Abstract: A device comprises a plurality of distributed transceivers, a plurality of distributed beamformers, a baseband processor, and a network management engine. The distributed transceivers perform beamforming in a radio frequency band. The distributed beamformers, however, performs beamforming in an intermediate frequency band. Each of the distributed transceivers is coupled to a corresponding one of the distributed beamformers. Each transceiver-beamformer pair is coupled to the baseband processor utilizing a same communication medium such as a cable. For transmission, a data stream generated at baseband is converted to intermediate frequencies. With a low-power transmission, the distributed beamformers transmit the data stream wirelessly in the intermediate frequencies to a receiving device. With a normal-power transmission, the distributed transceivers transmit the data stream to the receiving device in the radio frequency band. The transceivers and the beamformers are turned OFF whenever not being used.Type: GrantFiled: May 16, 2012Date of Patent: May 19, 2015Assignee: Golba LLCInventor: Mehran Moshfeghi
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Patent number: 9036719Abstract: Some example embodiments may be directed towards improving a secondary system channel estimation by using a primary channel estimate. Specifically, some example embodiments may be directed towards a method in an user equipment, which may be comprised in a Radio Network, for estimating a primary and a secondary channel. The method may comprise receiving from at least one Base Station a combined wireless communication signal through at least a portion of the primary channel. The method may also comprise determining an estimation of the primary channel. The method may further comprise determining an estimation of the secondary channel. The method may further comprise determining at least one common sub-component between the estimations of the primary and secondary channels, and determining an updated estimation of the secondary channel based on the at least one common sub-component.Type: GrantFiled: May 30, 2011Date of Patent: May 19, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Yngve Selén, Robert Baldemair, Joachim Sachs
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Patent number: 9030339Abstract: A transmitting device includes a parallel data generation unit and a transmitting unit. The parallel data generation unit generates first serial data and second serial data from a data packet, converts the first serial data and second serial data respectively into first parallel data and second parallel data, transmits the first parallel data and second parallel data respectively through first and second parallel transmission paths, and performs the transmission of the first parallel data and the transmission of the second parallel data in parallel. The transmitting unit receives the first parallel data and second parallel data respectively through the first and second parallel transmission paths, re-converts the first parallel data and second parallel data respectively into the first serial data and second serial data, and transmits the first serial data and second serial data to a receiving device respectively through first and second serial transmission paths.Type: GrantFiled: July 2, 2014Date of Patent: May 12, 2015Assignee: Canon Kabushiki KaishaInventor: Yusuke Fujita
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Patent number: 9031139Abstract: A communication apparatus according to the present invention comprises first communication means configured to transmit differential signals serving as first information over a first wire pair; second communication means configured to transmit differential signals serving as second information over a second wire pair; and third communication means configured to transmit third information by transmitting one of differential signals over the first wire pair and transmitting the other of the differential signals over the second wire pair. It is possible to provide a communication apparatus that spurious emission is suppressed.Type: GrantFiled: July 5, 2012Date of Patent: May 12, 2015Assignee: NEC CorporationInventor: Shigeo Yamada
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Patent number: 9031152Abstract: A communication level table storage unit stores a communication level table that defines correspondence between a communication level at least defined by MCS (modulation scheme and coding rate) and a range of required CINR at the communication level. A communication quality management unit obtains CINR of a received signal at another communication apparatus which is a communication partner. A setting unit refers to the communication level table, and when a difference between a representative value of a range of required CINR at a current communication level and a representative value of a range of required CINR of CINR at a communication level which is one level higher is more than or equal to a threshold value, sets a communication level such that the obtained CINR of the received signal is included in the range of required CINR.Type: GrantFiled: December 9, 2011Date of Patent: May 12, 2015Assignee: KYOCERA CorporationInventor: Takeo Miyata
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Patent number: 9031140Abstract: Method and apparatus for transmitting combined power and data. In one embodiment, the apparatus comprises an isolation barrier; a drive controller for generating a first waveform comprising a plurality of data signals for transmitting different types of data, where the drive controller couples the first waveform to a first side of the isolation barrier to produce a second waveform on a second side of the isolation barrier; and a circuit controller coupled to the second side of the isolation barrier, where the circuit controller is powered by the second waveform, and where the circuit controller controls a circuit based on the plurality of data signals.Type: GrantFiled: December 19, 2012Date of Patent: May 12, 2015Assignee: Enphase Energy, Inc.Inventor: Donald Richard Zimmanck
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Publication number: 20150124893Abstract: A modulation-assisted preprocessing scheme for non-binary LDPC reduces the computational complexity of non-binary LDPC decoding. A received signal is directly mapped onto a truncated symbol vector through a table lookup. The mapping table is built off-line based on the characteristics of a constellation structure. The receiver calculates and, if necessary, ranks the reliability of the symbols in the truncated vectors. This avoids unnecessary reliability calculation and ranking during on-line operation. The disclosed preprocessing methods offer lower computational complexity in terms of ranking and addition operations while offering the same error rate performance as conventional EMS preprocessing.Type: ApplicationFiled: November 4, 2013Publication date: May 7, 2015Applicant: UVic Industry Partnerships, Inc.Inventors: Hong-Chuan Yang, Tianqing Wu
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Patent number: 9025647Abstract: A device including a power input supplying external AC power to the device via a power cord, a filter filtering noise from outside of the supplied external AC power and thereby generating a filtered AC power, at least one power socket supplying the filtered AC power to at least one other device, and a PLC modem configured to be connected to the at least one power socket and to transmit data to or receive data from the at least one other device via power line communication using the filtered AC power. The device may be used in power line communication systems. A power line communication method uses the device for isolating a power line communication network from a mains grid.Type: GrantFiled: October 12, 2010Date of Patent: May 5, 2015Assignee: SONY CorporationInventors: Andreas Schwager, Dietmar Schill, John Christopher Clifton
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Patent number: 9026434Abstract: An audio coding terminal and method is provided. The terminal includes a coding mode setting unit to set an operation mode, from plural operation modes, for input audio coding by a codec configured to code the input audio based on the set operation mode such that when the set operation mode is a high frame erasure rate (FER) mode the codec codes a current frame of the input audio according to a select frame erasure concealment (FEC) mode of one or more FEC modes. Upon the setting of the operation mode to be the High FER mode the one FEC mode is selected, from the one or more FEC modes predetermined for the High FER mode, to control the codec by incorporating of redundancy within a coding of the input audio or as separate redundancy information separate from the coded input audio according to the selected one FEC mode.Type: GrantFiled: April 10, 2012Date of Patent: May 5, 2015Assignee: Samsung Electronic Co., Ltd.Inventors: Steven Craig Greer, Hosang Sung
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Patent number: 9025679Abstract: An adaptive coding and modulation (ACM) apparatus and method for a forward link in satellite communication is provided. The ACM apparatus may include a receiving unit to receive a signal-to-noise ratio (SNR) of a received signal, a determination unit to determine whether the SNR of the received signal is less than or equal to a threshold value, and a processing unit to execute a channel prediction algorithm when the SNR of the received signal is determined to be less than or equal to the threshold value.Type: GrantFiled: August 21, 2013Date of Patent: May 5, 2015Assignee: Electronics and Telecommunications Research InstituteInventors: Joon Gyu Ryu, Do Huy Wang, Deock Gil Oh
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Patent number: 9025641Abstract: The present invention provides, in one embodiment, a method of transmitting a message. The method includes transmitting a first codeword from a transmitter to a relay. The method also includes subsequently transmitting a second codeword based on the first codeword from the relay and a third codeword from the transmitter wherein the second and third codewords are transmitted concurrently.Type: GrantFiled: June 21, 2006Date of Patent: May 5, 2015Assignee: Alcatel LucentInventor: Gerhard G. Kramer
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Patent number: 9026834Abstract: An embodiment of the invention provides a communication device (100) for processing data samples and comprises a communication entity (102) and a further communication entity (104) communicatively coupled to the communication entity (102) with a digital interface. The communication entity (102) comprises a timing generation unit (106) adapted for generating real-time related timing information for operating hardware components of the communication entity (102) when processing data samples. The further communication entity (104) is adapted for operating hardware components of the further communication entity (104) in a sample-driven way when processing data samples.Type: GrantFiled: February 11, 2010Date of Patent: May 5, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventor: Steffen Reinhardt
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Patent number: 9026169Abstract: A method and apparatus are disclosed comprising a combined open loop/closed loop uplink power control scheme for E-UTRA. The combined open and closed loop method for UL intra-cell PC controls the wireless transmit receive unit (WTRU) transmit power spectral density (PSD), PSDTx, (e.g. power per RB).Type: GrantFiled: July 11, 2014Date of Patent: May 5, 2015Assignee: InterDigital Technology CorporationInventors: Sung-Hyuk Shin, Robert L. Olesen, Zinan Lin, Donald M. Grieco
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Patent number: 9019030Abstract: A memristor-based emulator including a memristor circuit for use in digital modulation that includes a first current feedback operational amplifier (CFOA) having multiple terminals in communication with a capacitor Cd and in further communication with a resistor Ri. A second CFOA having multiple terminals is in communication with the first CFOA and is adapted to be in further communication with a voltage vM to provide an input current iM for integration by a capacitor Ci. A nonlinear resistor is in communication with the second CFOA. A third CFOA having multiple terminals is in communication with the nonlinear resistor and is in further communication with the first CFOA and a resistor Rd. The third CFOA and the resistor Rd act as an inverting amplifier associated with the nonlinear resistor to increase a current gain to increase a difference between ON and OFF values of a resistance of a realized memristor.Type: GrantFiled: September 18, 2014Date of Patent: April 28, 2015Assignee: King Fahd University of Petroleum and MineralsInventors: Muhammad Taher Abuelma'atti, Zainualbideen Jamal Khalifa
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Accounting for inter-carrier interference in determining a response of an OFDM communication channel
Patent number: 9020050Abstract: In an embodiment, a channel estimator includes first and second stages. The first stage is operable to generate a respective one-dimensional array of first channel-estimation coefficients for each communication path of a communication channel, and the second stage is operable to generate a multi-dimensional array of second channel-estimation coefficients in response to the first channel-estimation coefficients. For example, such a channel estimator may estimate the response of a channel over which propagates an orthogonal-frequency-division-multiplexed (OFDM) signal that suffers from inter-carrier interference (ICI) due to Doppler spread. Such a channel estimator may estimate the channel response more efficiently, and with a simpler algorithm, than conventional channel estimators.Type: GrantFiled: December 8, 2010Date of Patent: April 28, 2015Assignees: STMicroelectronics, Inc., STMicroelectronics Asia Pacific Pte. Ltd.Inventors: Muralidhar Karthik, George A. Vlantis