Data Rate Patents (Class 375/225)
  • Patent number: 10492084
    Abstract: Data traffic routing and/or transmission parameter adaption decisions are made at a sending node by considering error patterns of one or more possible receiving nodes at the bit level. Data traffic routing and/or transmission parameter adaption decisions may be used to preemptively prevent data errors from occurring as data traffic is transmit by a sending node. The error pattern information may include information on numbers of bit errors in a code word or information on relative randomness or burstiness of bit error patterns at the one or more possible receiving nodes. The collaboratively shared error pattern information may be determined and updated over time intervals or upon selected conditions occurring. In one embodiment, a next hop node may be determined using bit error patterns of neighbor nodes. In another embodiment, transmission parameter adaption or channel selection may be determined using bit error patterns.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: November 26, 2019
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Amer Hassan, Paul Mitchell
  • Patent number: 10461983
    Abstract: This disclosure describes methods, apparatus, and systems to increase the transmission data rate in wireless networks, for example, by using one or more Multiple Input Multiple Output (MIMO) and/or channel bonding techniques. In one embodiment, the disclosure describes the use of Golay Sequence Sets (GSS) to define guard intervals (GIs) for single carrier (SC) single channel bonding and multiple input multiple output (MIMO) transmission. In various embodiments, the disclosure describes the design of guard interval sequence for 3 types of guard intervals having lengths that can be classified as short, medium, and long. In another embodiment, the disclosure defines the guard interval for single channel transmission channel bonding and for MIMO transmission.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: October 29, 2019
    Assignee: Intel Corporation
    Inventors: Yaroslav P. Gagiev, Artyom Lomayev, Alexander Maltsev, Michael Genossar, Carlos Cordeiro
  • Patent number: 10419802
    Abstract: A reduction in bitrate oscillation penalties is achieved by determining an oscillation measure measuring a balance of bitrate increase and bitrate decrease of the varied bitrate at which recently retrieved segments of the sequence of segments have been retrieved and setting the bitrate at which a current segment of the sequence of segments is to be retrieved depending on the oscillation measure.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: September 17, 2019
    Assignee: bitmovin GmbH
    Inventors: Christopher Mueller, Stefan Lederer, Christian Timmerer
  • Patent number: 10405323
    Abstract: The present disclosure provides a method, User Equipment (UE) and base station for adjusting a Modulation and Coding Scheme (MCS). The method comprises: receiving, by a user equipment (UE), a first downlink data frame sent by a base station at a first moment, and estimating, by the UE, a first Signal to Interference and Noise Ratio (SINR) and a first Channel Quality Indicator (CQI) according to the first downlink data frame; estimating a second SINR and a second CQI according to a received second downlink data frame, wherein the second downlink data frame is sent by the base station at a second moment later than the first moment; calculating, by the UE, a MCS variation according to at least one of the first CQI, the second CQI, the first SINR or the second SINR; and feeding back, by the UE, the MCS variation to the base station.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: September 3, 2019
    Assignee: NTT DoCoMo, Inc.
    Inventors: Yang Lan, Anxin Li, Huiling Jiang
  • Patent number: 10404313
    Abstract: Low noise amplifiers (LNAs) with output limiting are provided herein. In certain implementations, a gallium nitride (GaN) LNA includes LNA amplification circuitry and an output limiter that is connected to an output of the LNA amplification circuitry and operable to limit an output power of the GaN LNA. By limiting the output signal power, a number of benefits are achieved, including protection of downstream circuitry receiving the GaN LNA's output signal. For example, such downstream circuitry can be fabricated using silicon or other fabrication technology associated with a lower signal power handling capability relative to that of the GaN LNA.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: September 3, 2019
    Assignee: Analog Devices, Inc.
    Inventor: Keith Benson
  • Patent number: 10264569
    Abstract: The teachings presented herein propose a separation between the configuration of a sounding signal, and the initialization of the sounding signal. In other words, in at least one example embodiment proposed herein, a base station or other controlling entity sends, to a mobile station, an explicit or implicit indication that causes the mobile station to transmit a sounding signal according to sounding signal configuration parameters that at least a portion of which were previously and separately sent to the mobile station.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: April 16, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Erik Dahlman, Ylva Jading, Stefan Parkvall
  • Patent number: 10158446
    Abstract: In a multi-carrier cellular system, a second synchronization code (a Walsh code or a GCL series code) mapped on a second synchronization channel is used as a signal for specifying in which cell of the base station a mobile station terminal device itself is. A signal transmitted from the base station to the mobile station terminal device is mapped in a radio frame having two-dimensional extension in frequency and time directions. When mapping a certain series number of the second code for specifying a cell or a cell group on the radio frame as the second synchronization channel, phase rotation or circular shift in which one radio frame is one cycle is applied to the second synchronization code. On the receiving side, the head timing of the radio frame is known by knowing the phase rotation angle or the amount of circular shift of the second synchronization code.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: December 18, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Takashi Seyama, Takashi Dateki
  • Patent number: 10142054
    Abstract: A communication unit (2020) performs directly wireless communicates with a portable terminal (3000). A collection information acquisition unit (2040) acquires collection information. A division transmission unit (2060) generates multiple pieces of partial collection information by dividing the collection information, and transmits pieces of partial collection information being different from each other to multiple portable terminals (3000). A redundancy transmission unit (2080) transmits the same collection information to the multiple portable terminals (3000). An index value acquisition unit (2100) acquires any one or two of a reliability index value and a capacity index value of the portable terminal (3000). Based on any one or two of the reliability index value and the capacity index value of each portable terminal (3000), a transmission control unit (2120) selects the division transmission unit (2060) or the redundancy transmission unit (2080) to perform the transmission.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: November 27, 2018
    Assignee: NEC Corporation
    Inventors: Kenichiro Fujiyama, Koji Kida
  • Patent number: 10110290
    Abstract: Disclosed herein is a terminal including: receiving a CSI-RS from a base station, generating CSI feedback information including indicators such as RI, PTI, and BI and a first PMI and a second PMI that are elements of a double codebook, on the basis of the CSI-RS and transmits the CSI feedback information to the base station through an uplink subframe corresponding to predetermined feedback periodicity.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: October 23, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Cheulsoon Kim, Sung-Hyun Moon, Gi Yoon Park, Wooram Shin
  • Patent number: 10061720
    Abstract: A storage system includes a controller part, a data storage part, and a transfer path of a signal that couples these parts. A driver included in the controller part transmits the signal including write data on the basis of a configured parameter, a receiver included in the data storage part receives the signal, and the write data included in the signal is written into a first storage area. The controller part reads the write data from the first storage area, determines whether or not a bit error exists in the write data, changes the parameter when the bit error exists to repeat similar determination and find an appropriate parameter at which the bit error no longer exists.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: August 28, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Yasuhiro Ikeda, Satoshi Muraoka
  • Patent number: 10045366
    Abstract: An eNode-B includes PUSH mapping hardware for improved performance. A scheduler schedules first and second code words of first and second respective user devices. A buffer receives and stores first and second identifiers. A de-multiplexer outputs a first code word number based on the first identifier and a second code word number based on the second identifier. A set of completion queues store the first and second code word numbers. A sequence controller generates first and second select signals corresponding to the first and second identifiers. A multiplexer outputs one of the first and second code word numbers based on the select signals, and the scheduler schedules the first and second code words based on the first and second identifiers.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: August 7, 2018
    Assignee: NXP USA, INC.
    Inventors: Somvir Dahiya, Arvind Kaushik, Aviel Livay, Amrit P. Singh
  • Patent number: 10021704
    Abstract: According to certain embodiments, methods and systems for toggling transmission parameters in a heterogeneous network to achieve a target block error rate by a network node may include obtaining a signal-to-noise ratio (SINR) estimate from channel quality information for a downlink between a network node and a wireless device. For each of a first code word and a second code word to be transmitted on the downlink, a block error rate estimate may be obtained based on the SINR estimate. The network node may then determine at least one expected SINR for the first code word and the second code word. The at least one expected SINR may be determined as a function of the SINR estimate and the block error rate estimate. Based on the at least one expected SINR for the first code word and the second code word, a modulation and coding scheme (MCS) for obtaining a target block error rate may be selected.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: July 10, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Chandra Sekhar Bontu, Jianguo Long, Xixian Chen
  • Patent number: 10009123
    Abstract: Systems and methods for phase alignment among multiple transmitters are described. In some embodiments, a method may include creating a loop between an RF transmitter and an RF receiver; measuring a first DC signal on the I and Q paths of the RF receiver without inserting a DC signal in the I and Q paths of the RF transmitter; measuring a second DC signal on the I and Q paths of the RF receiver while inserting a non-zero DC signal in the I and Q paths of the RF transmitter; and calculating a relative phase difference between the RF transmitter and the RF receiver using the first and second DC signals.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: June 26, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Fanlong Li, Hunsoo Choo, Kyung-wan Nam
  • Patent number: 10003491
    Abstract: Disclosed is a transmission method compatible with higher order modulation and lower order modulation, and an apparatus. A base station stores a first higher order modulation mapping table supporting the higher order modulation and a first lower order modulation mapping table supporting the lower order modulation; the base station receives capability level information sent by user equipment; the base station determines, according to the capability level information sent by the user equipment, a first modulation mapping table used to communicate with the user equipment; the base station determines a modulation and coding scheme index according to the modulation mapping table, where the modulation and coding scheme index is used by the user equipment to determine a modulation and coding scheme; and the modulation and coding scheme index is sent to the user equipment.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: June 19, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Huaizhi Zhang, Weimin Chen, Xiufeng Wu, Qing Wang
  • Patent number: 9935731
    Abstract: A communication apparatus has a communicator configured to communicate with an external device capable of communication at multiple communication rates, a communication rate setter configured to change a communication rate of the communicator, and a period detector configured to detect a change period of the communication rates of the external device. The communication rate setter changes the communication rate based on the change period detected by the period detector.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: April 3, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takashi Tada
  • Patent number: 9924473
    Abstract: A compensation method, a base station, and a user equipment for uplink power control in a CoMP system are provided. The method includes: a base station determines an adjustment value for an uplink sending power of a UE; the base station sends to the UE indication information and the adjustment value for the uplink sending power of the UE, where the indication information is used for indicating a range of the adjustment value for the uplink sending power of the UE, so that the UE, according to the indication information and the adjustment value for the uplink sending power of the UE, determines the uplink sending power of the UE. Embodiments of the present invention are capable of improving the quality of sending uplink data.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: March 20, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jiayin Zhang, Wei Ni, Xiaotao Ren, Jun Ni
  • Patent number: 9826487
    Abstract: A method of controlling the respective transmit powers allocated by a base station of a cellular communications network to each of a plurality of sub-bands is provided. Information from at least one other base station of the network is received, the information comprising information about a sensitivity of a utility function in a cell served by the other base station to changes in powers allocated to respective sub-bands by the base station. A sub-band is identified in which it would be relatively advantageous to increase a transmit power. It is determined whether a factor relating to a happiness of users in the cell exceeds a threshold value. The transmit power in the identified sub-band is increased only if the happiness factor is less than the threshold value.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: November 21, 2017
    Inventors: Alan James Auchmuty Carter, Raymond Kwan
  • Patent number: 9819421
    Abstract: An optical receiver includes: an active transimpedance amplifier (TIA) that converts a photocurrent from a photosensor into an active voltage signal; a high-speed amplifier that amplifies the active voltage signal to produce an amplified voltage signal that comprises an output for the optical receiver; and a reference-voltage-generation circuit that generates a reference voltage for the high-speed amplifier. This reference-voltage-generation circuit includes a dummy TIA that is identical to the active TIA, but does not receive a live input signal, and produces a dummy voltage signal. It also includes a low-speed amplifier which includes: an active input that receives the active voltage signal from the active TIA output; a dummy input that receives the dummy voltage signal from the dummy TIA output; and an output that controls directly or indirectly the reference voltage for the high-speed amplifier.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: November 14, 2017
    Assignee: Oracle International Corporation
    Inventors: Jingqiong Xie, Ashok V. Krishnamoorthy, Xuezhe Zheng, Jeffrey W. Denq, Kannan Raj, John E. Cunningham, Hiren D. Thacker
  • Patent number: 9692646
    Abstract: A device that that is difficult to access may have procedures remotely initiated by the generation of signal patterns over an Ethernet network. The signal patterns include status of the Ethernet link (active, down), the duration of an active link and a down link, and the speed of data during the active link.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: June 27, 2017
    Assignee: PROXIM WIRELESS CORPORATION
    Inventor: Nagaraju Nerella
  • Patent number: 9686105
    Abstract: The present disclosure provides a crystal-less clock and data recovery (CDR) circuit and a frequency detection method thereof. The CDR circuit includes a clock generator and a frequency detection module. The clock generator is operable to generate a clock signal. The frequency detection module coupled to the clock generator is configured for outputting a control signal to the clock generator to increase or decrease the frequency of the clock signal according to a data signal received and a transition density.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: June 20, 2017
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Feng-Cheng Chang, Xiao-Guo Zheng
  • Patent number: 9590827
    Abstract: A distortion compensation apparatus including: an amplifier configured to amplify an input signal including a transmission signal and an impulse signal, the transmission signal being converted to a radio frequency signal for transmission, the impulse signal being not converted to a radio signal for transmission, a memory configured to store a plurality of distortion compensation coefficients for compensating distortion to the input signal, each of the plurality of distortion compensation coefficients being associated with an amplitude of the input signal, and a processor configured to select a distortion compensation coefficient from the plurality of distortion compensation coefficients based on an amplitude of the impulse signal included in the input signal, and update the selected distortion compensation coefficient based on the amplified impulse signal include in the amplified input signal.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: March 7, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Yoshinobu Shizawa, Hiroaki Maeda, Junya Morita, Hiroyuki Ogawa, Yousuke Okazaki, Satoshi Matsubara
  • Patent number: 9544352
    Abstract: A reduction in bitrate oscillation penalties is achieved by determining an oscillation measure measuring a balance of bitrate increase and bitrate decrease of the varied bitrate at which recently retrieved segments of the sequence of segments have been retrieved and setting the bitrate at which a current segment of the sequence of segments is to be retrieved depending on the oscillation measure.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: January 10, 2017
    Assignee: BITMOVIN GMBH
    Inventors: Christopher Mueller, Stefan Lederer, Christian Timmerer
  • Patent number: 9529685
    Abstract: A method for checking an installation location of a component in a failsafe automation system, wherein the components are connected to one another in series and uniquely defined addresses are continuously assigned from a first component to successor components, wherein, after the assignment of addresses to the components, a switching device is operated in the components such that a signal transit time measurement is performed incrementally with a test signal for each successor component, and wherein the test signal is emitted and re-received and the installation location of the successor component is check based on the time difference.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: December 27, 2016
    Assignee: Siemens Aktiengesellschaft
    Inventors: Herbert Barthel, Temple L. Fulton, Peter Hoedl
  • Patent number: 9432171
    Abstract: a method and a board for high-speed link auto-negotiation, includes: setting, by a first board, a port rate to a public rate supported by both the first board and a second board; sending, by the first board, a first auto-negotiation packet to the second board according to the public rate, where the first auto-negotiation packet carries a rate supported by the first board, so that the second board determines, a highest rate supported by both the two boards, and sets the port rate to the highest rate; receiving, by the first board, a second auto-negotiation packet that is sent by the second board according to the public rate, which carries the rate supported by the second board; determining, by the first board, according to the rate supported by the two boards, the highest rate supported by both the two boards, and setting the port rate to the highest rate.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: August 30, 2016
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Li Yan, Yunmin Tong, Ligang Huang, Xiaoqin Chen
  • Patent number: 9426761
    Abstract: A WiGig wireless device partially performs a masking processing on a preamble of a transmission signal frame and generates a repetition pattern of the same pulse capable of being used in a correlation detection of a sensor. That is, a repetition pattern of a Golay code is output by intermittently performing the masking processing on the Golay code sequence. The sensor performs the correlation detection using a pulse compression technology, thereby detecting the antenna radiation pattern even in an environment where a reflected wave is generated, by separating the direct wave and the reflected wave.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: August 23, 2016
    Assignee: Panasonic Corporation
    Inventors: Tadashi Morita, Takaaki Kishigami, Hirohito Mukai
  • Patent number: 9408094
    Abstract: Disclosed are an apparatus and method for assessing decode reliability of voice, data and control channel transmissions. In an aspect, the apparatus and method are configured to receive one or more radio frames or parts of a frame on a downlink channel; demodulate the received one or more frames or parts of the frame; decode the demodulated one or more frames or parts of the frame; compute one or more demodulator-based metrics and one or more decoder-based metrics; combine the one or more demodulator-based metrics and the one or more decoder-based metrics using a reliability function that assesses reliability of the decoded one or more frames or parts of the frame; and accept or reject the decoded one or more frames or parts of the frame based on the assessment of the reliability of the decoded frames or parts of the frame.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: August 2, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Prashant Udupa Sripathi, Nate Chizgi, Christopher Cooper Riddle, Nitin Kasturi, Atul Arvind Salvekar
  • Patent number: 9258791
    Abstract: The present disclosure relates to a method and user equipment, UE, in a wireless communication network of performing power scaling on uplink transmission to a receiving radio access node, RAN. In particular, the disclosure relates to a method and user equipment for power scaling on a multi-radio access bearer, multi-RAB, wherein a Dedicated Physical Data Channel, DPDCH, and an enhanced Dedicated Physical Data Channel, E-DPDCH are configured for uplink transmission from the UE to the receiving RAN. The method comprises determining (S31) a total UE transmit power exceeding a predetermined maximum power limit value. The total UE transmit power is reduced (S32) to the predetermined maximum power limit value by reducing one or more E-DPDCH gain factors by an equal scaling factor. A DPDCH transmission status is determined (S33), whereupon a power scaling procedure is selected (S34) based on the determined DPDCH transmission status. The selected power scaling procedure is applied (S35) on the uplink transmission.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: February 9, 2016
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Cagatay Konuskan, Andreas Andersson, Billy Hogan
  • Patent number: 9215041
    Abstract: A transmission apparatus controls a transport format for retransmission of data packets transmitted uplink to a receiving apparatus via at least one data channel using an automatic repeat request (ARQ) protocol. A transmitter transmits an uplink data packet via the data channel to the receiving apparatus, and a receiver receives first information along with second information from the receiving apparatus. The first information is used for determination whether to perform a retransmission of the uplink data packet at the transmission apparatus, and the second information indicates a transport format for the retransmission. The transmitter transmits the retransmission from the transmission apparatus to the receiving apparatus according to the transport format indicated in the second information element using a transmission timing based on the ARQ protocol.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: December 15, 2015
    Assignee: Optis Wireless Technology, LLC
    Inventors: Joachim Lohr, Eiko Seidel, Dieter Petermann
  • Patent number: 9203444
    Abstract: A rate adjustment apparatus includes a calculating section to calculate a number of outputs where bits of input data are sequentially output when a number of times of puncturing of the input data to be punctured is smaller than a number of remaining bits after puncturing, and a processing section to sequentially output bits of the input data and puncture the bits of the input data based on the number of outputs calculated by the calculating section.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: December 1, 2015
    Assignee: FUJITSI LIMITED
    Inventor: Shunji Miyazaki
  • Patent number: 9197383
    Abstract: A method of transmitting, by a transmitter, information in a wireless communication system, the method includes generating first and second symbols; generating first and second transmit vectors on the basis of an Alamouti code from the first and second symbols; and transmitting the first transmit vector through a first antenna and transmitting the second transmit vector through a second antenna. The first transmit vector consists of a first transmit symbol and a second transmit symbol. The second transmit vector consists of a third transmit symbol and a fourth transmit symbol. The first, second, third, and fourth transmit symbols are transmitted based on first and second resource indexes. The first symbol is a first modulation symbol for first information, and the second symbol is a second modulation symbol for second information.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: November 24, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Seung Hee Han, Moon Il Lee, Yeong Hyeon Kwon, Hyun Soo Ko, Ja Ho Koo, Dong Cheol Kim, Jae Hoon Chung, Sung Ho Moon, Jin Sam Kwak, Min Seok Noh, Hyun Woo Lee
  • Patent number: 9148256
    Abstract: The performance of a Single Code Word (SCW) design with low complexity MMSE receiver & rank prediction is similar to the Multiple Code Word (MCW) design with successive interference cancellation (SIC). A method of rank prediction comprises calculating MIMO channel matrices corresponding to layer transmissions for each tone, calculating signal-to-noise ratios (SNRs) for each tone based on the MIMO channel matrices, mapping the SNR for each tone to generate effective SNRs for each layer transmission, selecting a highest packet format (PF) with an SNR threshold less than the effective SNR for each layer transmission, maximizing an over-all spectral efficiency based on the selected highest packet formats for each layer transmission, and selecting a rank based on maximizing an over-all spectral efficiency.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: September 29, 2015
    Assignee: Qualcomm Incorporated
    Inventors: Hemanth Sampath, Tamer Kadous
  • Patent number: 9137522
    Abstract: A control device for three dimensional display has an image processor and a timing signal generator. The image processor is used for receiving a first and a second input image signals to generate a first, a second, and a third output image signals. The first output image signal comprises part of the first input image signal. The second output image signal comprises part of the first input image signal and part of the second input image signal. The third output image signal comprises part of the second input image signal. The timing signal generator is used for generating a first lens control signal for configuring a first lens to be non-opaque when the second output image signal is displayed on a display device, and generating a second lens control signal for configuring a second lens to be non-opaque when the third output image signal is displayed on the display device.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: September 15, 2015
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Wen-Che Wu, Wen-Hsia Kung
  • Patent number: 9130595
    Abstract: A method involves receiving at least one analog signal from a transmitter, converting the analog signal to digital waveform data representing the analog signal and storing the digital waveform data in a first memory storage area. The digital waveform data includes cyclic redundancy check (CRC) error-checking code and informational message data, and is modulated by an unknown frequency rate parameter. A chirp adjustment function is performed that includes multiplying the digital waveform data by a non-linear data array to correct for the unknown frequency rate parameter. An error-checking function is performed using the CRC error-checking code. If an error is found, the method involves iteratively performing the chirp adjustment function and the error-checking function. The method may be implemented in a receiver in a mobile communications system to correct for acceleration effects of the receiver.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: September 8, 2015
    Assignee: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
    Inventors: Gregory K. Fleizach, Gary Lau
  • Patent number: 9054854
    Abstract: Circuitry for use in aligning bytes in a serial data signal (e.g., with deserializer circuitry that operates in part in response to a byte rate clock signal) includes a multistage shift register for shifting the serial data signal through a number of stages at least equal to (and in many cases, preferably more than) the number of bits in a byte. The output signal of any shift register stage can be selected as the output of this “bit slipping” circuitry so that any number of bits over a fairly wide range can be “slipped” to produce or help produce appropriately aligned bytes. The disclosed bit slipping circuitry is alternatively or additionally usable in helping to align (“deskew”) two or more serial data signals that are received via separate communication channels.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: June 9, 2015
    Assignee: Altera Corporation
    Inventor: Richard Yen-Hsiang Chang
  • Patent number: 9036686
    Abstract: A modem and a method of placing a modem in an online data state. In one embodiment, the modem includes: (1) a digital interface configured to receive, via an AT channel thereof, a standard AT command directing an AT channel of the modem to exit a command state and enter an online data state and (2) a command processor coupled to the digital interface and configured to: extract channel designation data received as a standard parameter of the standard AT command, cause a channel designated by the channel designation data and separate from the AT channel to enter the online data state, and allow the AT channel to remain in the command state.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: May 19, 2015
    Assignee: NVIDIA CORPORATION
    Inventors: Bruno De Smet, Flavien Delorme, Fabien Besson
  • Patent number: 9020017
    Abstract: A signal processing method, device, and system are provided. The method includes: sending, through a first user port, a crosstalk detection signal in a connected line, and receiving, through a second user port, an error sample of an actual downlink signal fed back by a terminal side in a connected line; and estimating, according to the actual downlink signal and the crosstalk detection signal, a coefficient of a pre-coder of a DSLAM to obtain an estimated coefficient of the pre-coder, where the coefficient of the pre-coder is used to cancel far-end crosstalk on the line connected to the second user port when the first user port sends an SELT signal.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: April 28, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Cao Shi
  • Patent number: 9021291
    Abstract: A network node of a synchronous network, wherein said network node comprises a timing circuit which recovers a reference clock from a reception signal received by said network node from an upstream network node of said synchronous network and uses the recovered reference clock for a transmission signal transmitted by said network node to a downstream network node of said synchronous network; and a clock stability monitoring circuit which monitors internal control parameters (CP) of said timing circuit to detect an instability of the reference clock distributed within said synchronous network.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: April 28, 2015
    Assignee: ADVA Optical Networking SE
    Inventor: Anthony Magee
  • Patent number: 9008594
    Abstract: A method for adaptive communication in an HF frequency band includes at least one of the following steps: the determination of a payload subband S that is available for a transmission in the HF band, the selection in the payload subband S of a set of n frequency channels of identical width according to a frequency allocation plan and the quality of the link of each of said channels, or the simultaneous transmission on the n frequency channels of a signal complying with an HF waveform.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: April 14, 2015
    Assignee: Thales
    Inventors: Catherine Lamy-Bergot, Crambert Philippe, Multedo Gilbert, Merel Dominique, Gaschi Jean-François
  • Patent number: 8995503
    Abstract: An achievable sum data rate with respect to each of available candidate transmission/reception modes may be calculated to select a transmission/reception mode of transmission/reception pairs repeatedly using radio resources. A transmission/reception mode to be applied may be selected from the candidate transmission/reception modes based on the calculated sum data rate. Information associated with the selected transmission/reception mode may be shared by the transmission/reception pairs.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: March 31, 2015
    Assignees: Samsung Electronics Co., Ltd., Korea University Industrial & Academic Collaboration Foundation
    Inventors: Young-Doo Kim, Seok Hwan Park, Hae Wook Park, Inkyu Lee
  • Patent number: 8989244
    Abstract: A receiver is provided that receives signals from a device under test (DUT) for one or more modes of operation. For each mode, the system detects beacon transmission signals from the DUT, and counts the number of beacons for a period of time. If the count is not consistent with an expected count, e.g. a stored value, the system may preferably provide an output to indicate that there is a problem with the DUT. If the count is consistent with the expected count, the system may preferably perform further testing for other modes of operation. If the count output of the DUT is consistent with expected counts over each of the operation modes, the system may provide an indication that the DUT has passed the beacon tests.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: March 24, 2015
    Assignee: NETGEAR, Inc.
    Inventors: Joseph Amalan Arul Emmanuel, Jonathan M. Hummel, Shahrokh M. Zardoshti
  • Patent number: 8971818
    Abstract: A method for partitioning a communications network includes selecting, by a controller, a starting communications controller for a first region in the communications network according to an interference level. The method also includes including, by the controller, a first neighboring communications controller in the first region if an average inter-cell interference level of the starting communications controller and the first neighboring communications controller exceeds a first threshold and closing the first region if the average inter-cell interference level of the starting communications controller and the first neighboring communications controller fails to exceed the first threshold. The method further includes storing information about the first region in a memory.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: March 3, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Amine Maaref, Ying Qian
  • Patent number: 8958493
    Abstract: The present invention relates to a transmitter in a transmission system operable to optimize estimates of a quantity at a receiver for improved operation. The transmission system includes a transmitting unit connected to a number of antennas (Txm), and to control unit. The control unit controls the transmitting unit to initially transmit an initial training/quantity estimation sequence during an initial training/quantity estimation phase and subsequently transmit a sequence of data symbols such that the information rate of the data symbols is progressively increased.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: February 17, 2015
    Assignee: Infineon Technologies AG
    Inventor: Michael Lewis
  • Publication number: 20150036730
    Abstract: An apparatus and a system for automatically tracking data speed are disclosed. An embodiment of the invention provides a transmitting apparatus for automatically tracking data speed that includes: an encoder configured to convert parallelized input data according to a preset signal rule into a first signal and a second signal, where the input data is inputted as a unit of n bits, the encoder outputs the first signal and the second signal such that, if the input data includes identical bit values consecutively, one of the first signal and the second signal is converted to include transition information instead of following a differential rule with respect to the other signal; a serializer configured to serialize the first signal and the second signal; and a transmitting part configured to transmit the serialized first signal and second signal.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 5, 2015
    Inventors: Chulwoo Kim, Yeonho Lee, Junyoung Song
  • Patent number: 8942277
    Abstract: To improve throughput by reducing the resource used for transmitting a parameter relating to retransmission control and decreasing overhead of retransmission control signaling. Where a retransmission control method is employed with adaptive MCS control in which the encoding rate can be changed, the scheduling section sets the MCS in accordance with CQI notified from the communication counterpart apparatus. When transmission data is encoded, the RV parameter bit-number setting section sets the number of bits used for signaling the RV parameter to decrease as the encoding rate of the first transmission is decreased and sets the RV parameter based on the number of bits. For example, in a case where the encoding rate R is R>?, two bits are set. In a case where the encoding rate ?<R??, one bit is set. On the other hand, in a case where R??, zero bits is set.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: January 27, 2015
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Masayuki Hoshino, Katsuhiko Hiramatsu, Yasuaki Yuda
  • Patent number: 8942716
    Abstract: A radio resource control method of controlling a radio resource for transmitting user data by a mobile station via an uplink, including: sending, from a radio base station, a signal indicative of a reduction of a maximum allowable transmission rate of the user data signaled to the mobile station connected to the radio base station, to a radio network controller; and controlling, at the radio network controller, the radio resource based on the reported signal indicative of the reduction of the maximum allowable transmission rate.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: January 27, 2015
    Assignee: NTT DOCOMO, INC.
    Inventors: Masafumi Usuda, Anil Umesh
  • Patent number: 8942280
    Abstract: A timing jitter measurement circuit for measuring timing jitter in the digital domain may use an interpolator bank to over-sample a signal from a media reader, a zero crossing estimator to estimate a zero crossing moment in the output of the interpolator bank and a time interval analyzer (TIA) to calculate the timing jitter as the deviation of the estimated zero crossing moment from an expected zero crossing moment in a clock signal. The timing jitter measurement circuit may be integrated into digital circuitry since it avoids using analog devices. Consequently, it may simplify the chip design, lower power consumption and save space.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: January 27, 2015
    Assignee: Marvell International Ltd.
    Inventors: Mats Oberg, Jin Xie, Bin Ni
  • Patent number: 8934860
    Abstract: A method for detecting an ingress of a short wave radio signal in a power line communication system which determines a strength of a common mode signal at a frequency of the power line communication system during a time period when no communication in the power line communication system at this frequency takes place and an ingress is detected if the strength of the common mode signal is above a determined threshold. A corresponding power line communication modem can implement such a method.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: January 13, 2015
    Assignee: Sony Corporation
    Inventor: Andreas Schwager
  • Patent number: 8929425
    Abstract: Disclosed are a self-adaptive baud rate system and method. The method includes: a) receiving first data and second data; b) judging whether or not a falling edge of a start bit in a synchronization code of the first data and second data is detected; c) if the falling edge is not detected, then return to step b); and if the falling edge is detected, then a first counting is started from a rising edge after the start bit based on a reference clock, and stopped at the next falling edge, and a first count value is obtained; and a second counting is started from the falling edge where the first counting was stopped, and stopped at the next rising edge, and a second count value is obtained; and d) acquiring a baud rate according to the relationships among the first count value and the second count value and a first threshold.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: January 6, 2015
    Assignee: Schneider Electric Industries SAS
    Inventor: Lei Chen
  • Patent number: 8913650
    Abstract: A device may include one or more components and a processor. The one or more components may obtain bit-error-rates of a signal and signal-to-noise ratios of the signal. The processor may select a target signal-to-noise ratio for the signal, determine a target noise level based on the target signal-to-noise ratio, set a noise level of the signal to the target noise level, determine a signal-to-noise ratio of the signal via the one or more components, adjust the noise level of the signal based on the determined signal-to-noise ratio, to stabilize the signal-to-noise ratio, determine a bit-error-rate of the signal via the one or more components, and record the bit-error-rate.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: December 16, 2014
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: James M. Cervenka, John Fasolino, Steven Franks, Stephen Clark, Tiejun J. Xia
  • Patent number: 8903049
    Abstract: Using DSL modems as data collectors, the modems processes the data to, for example, allow easier interpretation of the line characteristics. In particular, the modems postprocess the data including calibration, filter compensation, determination of the SNR medley from the bits and gains tables and rate conversion. The interpretation process uses the postprocessed data and determines loop characterization, interferer detection, a data reduction estimation and a data rate estimation. The outputs of these determinations least allow for the characterization of the line conditions between the two modems.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: December 2, 2014
    Assignee: Broadcom Corporation
    Inventors: Murat Belge, Michael A. Tzannes, Halil Padir