Transmission Facility Patents (Class 714/821)
  • Patent number: 11699095
    Abstract: A training apparatus includes an acquiring unit that acquires a first model including an input layer to which input information is input; a plurality of intermediate layers that executes a calculation based on a feature of the input information that has been input; and an output layer that outputs output information that corresponds to output of the intermediate layer. The training apparatus includes a training unit that trains the first model such that, when predetermined input information is input to the first model, the first model outputs predetermined output information that corresponds to the predetermined input information and intermediate information output from a predetermined intermediate layer among the intermediate layers becomes close to feature information that corresponds to a feature of correspondence information that corresponds to the predetermined input information.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: July 11, 2023
    Assignee: YAHOO JAPAN CORPORATION
    Inventors: Heishiro Kanagawa, Hayato Kobayashi, Nobuyuki Shimizu, Yukihiro Tagami
  • Patent number: 11463893
    Abstract: Included are a first mobile terminal testing device that operates as an LTE base station, a second mobile terminal testing device that operates as an NSA 5G NR base station, and a test control device that controls the first mobile terminal testing device and the second mobile terminal testing device. The test control device includes a command input unit into which a control command for controlling the first mobile terminal testing device and the second mobile terminal testing device is input, a command transmission determination unit that determines a mobile terminal testing device of a transmission destination of the control command, and a command transmission unit that transmits the control command to a transmission destination determined by the command transmission determination unit. The command transmission determination unit determines the transmission destination of the control command according to the type of the control command.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: October 4, 2022
    Assignee: ANRITSU CORPORATION
    Inventors: Daiki Kano, Yuki Naruse, Keiichi Mineda
  • Patent number: 10994759
    Abstract: The invention pertains to a system for providing information to an information system in a vehicle, comprising: a communication interface (210) to communicate with a server (299) residing outside the vehicle (200); data storage means (220) to temporarily store data received from the server via the communication interface; data gathering means (230) to obtain information about a current situation or event independently of the server; an information system (100) to provide information services to crew and/or passengers or to control systems of the vehicle; and a processor (240). The processor is configured to: detect whether the communication interface is operational, if the communication interface is operational, provide data received from the communication interface to the information system; otherwise, provide data retrieved from the data storage means and adapted on the basis of information obtained from the data gathering means to the information system.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: May 4, 2021
    Assignee: Televic Rail NV
    Inventors: Jabran Bhatti, Dirk Van Den Wouwer
  • Patent number: 10637785
    Abstract: Systems, methods, and storage media for utilizing software defined networking for a multiple operating system rotational environment, executing on a computing device are disclosed. Some implementations may: receive a request from a user device; modify a packet of the request with a destination address and a port of a first server; forward the modified packet of the request to a controller server; receive a flow modification from the controller server based on the modified packet; and modify further received packets from the user device based on the received flow modification.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: April 28, 2020
    Assignee: UChicago Argonne, LLC
    Inventors: Joshua A. Lyle, Nathaniel Evans
  • Patent number: 9986260
    Abstract: An video image processing device configured to generate one or more census digit planes, and to generate one or more signature vectors based on the one or more census digit planes. The video image processing device can include one or more census transforms configured to perform one or more census transformations to generate the signature vector(s) based on the census digit plane(s).
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: May 29, 2018
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventor: Minhua Zhou
  • Patent number: 9590724
    Abstract: A method for error detection within a passive optical network (PON), the method comprising receiving a first upstream optical signal that is copied at an optical splitter, converting the first upstream optical signal to a first electrical signal, receiving a second electrical signal that is converted from a second upstream optical signal that is copied at the optical splitter, and determining a corrected transmitted data stream using at least the first electrical signal and the second electrical signal, wherein the first upstream optical signal and the second upstream optical signal are copies of an upstream optical signal generated from a plurality of optical network units (ONUs).
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: March 7, 2017
    Assignee: Futurewei Technologies, Inc.
    Inventors: Frank J. Effenberger, Lei Zong
  • Patent number: 9229798
    Abstract: An error handling method, a memory storage device and a memory controlling circuit unit are provided. The method includes obtaining a finished event corresponding to a channel; determining whether the finished event is a failed event, if the finished event is the failed event; stopping an operation of the channel and performing a first update operation on a counting value corresponding to the channel; and if the finished event is not the failed event, keeping the counting value corresponding to the channel unchanged and processing the finished event. The step of the processing the finished event includes performing a second update operation on the counting value corresponding to the channel if the finished event is the failed event, and recovering the operation of the channel if the counting value matches a threshold criterion. Accordingly, it can improve the accessing performance.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: January 5, 2016
    Assignee: PHISON ELECTRONICS CORP.
    Inventor: Horng-Sheng Yan
  • Patent number: 9219597
    Abstract: A method is described for the transmission of data among devices (D1, D2, . . . Di, . . . Dn) connected to a communication channel (1) through sequences containing at least two symbols, one dominant (“0”) and one recessive (“1”). According to this transmission method, one (DTSG) of the devices connected to the communication channel (1) has the function of time slot generator and it transmits on the communication channel (1) with a transmission frequency (f) a sequence of symbols, each defining a time slot in a sequence of time slots. The sequence of symbols comprises at least a series of recessive symbols (“1”). When one of the devices (Di) has to transmit on the communication channel (1), it generates a sequence of symbols, synchronized with the sequence of time slots generated by the time slot generator device (DTSG) and comprising at least one dominant symbol (“0”).
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: December 22, 2015
    Assignee: ABB Technology AG
    Inventors: Massimo Valiani, Davide Tazzari, Filippo Vernia
  • Patent number: 9032277
    Abstract: In an arrangement of the disclosed systems, devices, and methods, a codeword encoded with a first number of check symbols is received and asymmetrically processed according to a second number of check symbols, where the second number of check symbols is less than the first number of check symbols, to produce an error locator polynomial and an error evaluator polynomial. A derivative of the error locator polynomial is produced by outputting a first polynomial term and a second polynomial term, wherein the second polynomial term is a constant. The derivative of the error locator polynomial is produced using a variable finite-field multiplier and without use of a divider.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: May 12, 2015
    Assignee: Altera Corporation
    Inventors: Martin Langhammer, Chuck Rumbolt
  • Patent number: 9015538
    Abstract: A method of using tester data packet signals and control instructions for testing a radio frequency (RF) data packet signal transceiver device under test (DUT) capable of communicating using multiple radio access technologies (RATs) having one or more mutually distinct signal characteristics. During mutually alternating time intervals, selected ones of which are substantially contemporaneous, tester data packet signals and control instructions are used for concurrent testing and configuration for testing, respectively, of multiple RATs of the DUT.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: April 21, 2015
    Assignee: Litepoint Corporation
    Inventor: Christian Volf Olgaard
  • Patent number: 8972838
    Abstract: A data transmission detecting device including a detecting module and a detection value calculating module is provided. The detecting module has a plurality of receiving terminals and receives a first data and a second data during a first period. The detecting module calculates a total detection value according to the first data and the second data, and performs an error check comparison by comparing the total detection value with an error check code. When the detecting module again receives the first data during a second period, the detection value calculating module transmits an auxiliary detection value to the detecting module, so that the detecting module calculates a corresponding total detection value according to the auxiliary detection value, and performs the error check comparison by comparing the total detection value with the error check code. The first period and the second period are two successive periods adjacent to each other.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: March 3, 2015
    Assignee: Novatek Microelectronics Corp.
    Inventors: Wei-Ying Tu, Hsi-Chi Ho
  • Publication number: 20150039979
    Abstract: A method and an apparatus for concealing an error of an apparatus for receiving an audio frame in a communication system are provided. The includes determining whether the error occurs in a current audio frame that is received from a transmitter, determining whether the audio frame includes a signal that corresponds to a preset specific frequency when the error occurs, setting a gain of the signal that corresponds to the specific frequency to be lower than a preset limit value if the audio frame includes the signal, and concealing the error of the current audio frame based on a previous audio frame of the audio frame in which the error occurs and the gain of the signal that corresponds to the set specific frequency.
    Type: Application
    Filed: July 29, 2014
    Publication date: February 5, 2015
    Inventors: Seungwon CHOI, Seongwook SONG
  • Patent number: 8914713
    Abstract: Error correction coding for streaming communication is provided. A streaming problem is modeled as a non-multicast network problem with a nested receiver structure. Each packet in the streaming problem corresponds to a link, and each deadline in the streaming problem corresponds to a receiver in the non-multicast network problem. For the non-multicast network problem, content to be transmitted in multiple packets to multiple receivers is obtained. Each of the receivers is required to decode specific independent messages from the content, at given time steps, and has access to a subset of the content received by another receiver. The content is allocated into multiple packets to be transmitted on multiple links. No coding occurs across information demanded by different receivers. A capacity region defines a set of information rate vectors that can be communicated to the receivers successfully. A rate vector is successfully communicated if it complies with various inequalities.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: December 16, 2014
    Assignee: California Institute of Technology
    Inventors: Svitlana Vyetrenko, Tracey C. Ho, Hongyi Yao, Omer Tekin
  • Patent number: 8898526
    Abstract: A communication link analyzer is disclosed for analyzing a communication link. The communication link analyzer may analyze bitstreams that have been FEC encoded and are transmitted according to one or more 10 Gigabit Ethernet standards, 40 Gigabit Ethernet standards, and other such standards. The communication link analyzer may maintain a running count of the errors detected for the bit positions of a 2112-bit FEC-encoded datablock. These errors may include, but are not limited to, baseline wander, deterministic jitter, and predictive-interval errors. When a given error threshold is met or exceeded for one or more received bitstreams, the communication link analyzer may then attempt a diagnosis of the communication link. Using previously provided empirical data, the communication link analyzer may provide a diagnosis of the communication link based on the error type threshold that was met or exceeded and the bit position associated with the error type threshold.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: November 25, 2014
    Assignee: Google Inc.
    Inventor: Leesa Marie Noujeim
  • Patent number: 8874980
    Abstract: A chip applied to a serial transmission system includes an input terminal, a core circuit, an output terminal, a first transmission line, a second transmission line and a spare transmission line, where the input terminal is used to receive an input signal from a source outside the chip, the output terminal is used to output an output signal, the first transmission lines is coupled between the input terminal and the core circuit, the second transmission line is coupled between the core circuit and the output terminal, and the spare transmission line is coupled between the input terminal and the output terminal. When the core circuit cannot process the input terminal normally, the input signal is directly transmitted to the output terminal via the spare transmission line, and the input signal serves as the output signal to be outputted from the output terminal.
    Type: Grant
    Filed: January 6, 2013
    Date of Patent: October 28, 2014
    Assignee: Silicon Touch Technology Inc.
    Inventors: Chi-Yuan Chin, Kuei-Jyun Chen
  • Patent number: 8867287
    Abstract: A semiconductor memory apparatus including a test circuit configured for generating compressed data by comparing and compressing data stored in a plurality of memory cells inside a memory bank during a first test mode, and configured for outputting the compressed data as test data to an input/output pad through one selected global line during the first test mode, and the test circuit is configured for transmitting the compressed data to a plurality of global lines during a second test mode, combining the compressed data loaded in the respective global lines during the second test mode, and outputting the combination result as the test data to the input/output pad during the second test mode.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: October 21, 2014
    Assignee: SK Hynix Inc.
    Inventors: Jin Youp Cha, Jae Il Kim
  • Patent number: 8850300
    Abstract: A system includes a packet generator and a packet checker. The packet generator is operable to operable to generate a packet for transmission to a destination device. The packet includes a plurality of fields, including a code field that is operable to store a code generated based on an expected modification to the packet during transmission. The packet checker is associated with the destination device and is operable to receive the packet.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: September 30, 2014
    Assignee: Altera Corporation
    Inventors: Lambertus de Jong, James Tyson
  • Patent number: 8826096
    Abstract: Provided are a method of decoding an LDPC code for producing several different decoders using a parity-check matrix of the LDPC code, and an LDPC code system including the same. The system includes: an LDPC encoder outputting an LDPC codeword through a channel; a first LDPC decoder decoding the LDPC codeword received through the channel, and when the decoding has failed in a second LDPC decoder, decoding the LDPC codeword according to original parity check matrix of the LDPC codeword, using soft information newly generated after the decoding is ended in the second LDPC decoder; and the second LDPC decoder, when the decoding has failed in the first LDPC decoder, receiving the soft information on each bit from the first LDPC, and decoding the LDPC codeword according to a new parity-check matrix produced from the parity-check matrix of the LDPC codeword using the received soft information on each bit.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: September 2, 2014
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jaekyun Moon, Soonyoung Kang
  • Patent number: 8819525
    Abstract: Error concealment guided robustness may include identifying a current portion of a current video stream. Identifying the current portion may include identifying a feature, or a vector of features, for the current portion. An estimated vulnerability metric may be identified based on the feature and an associated learned feature weight. An error correction code for the current portion may be generated based on the estimated vulnerability metric. Error concealment guided robustness may include generating learned feature weights based on one or more training videos by generating vulnerability metrics for the training videos and identifying relationships between features of the training videos and the vulnerability metrics generated for the training videos.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: August 26, 2014
    Assignee: Google Inc.
    Inventor: Stefan Holmer
  • Patent number: 8806314
    Abstract: A detection signal transmitting unit 123 of a first component 110 transmits a plurality of detection signals having different frequency spectrums to a second component 210. Upon receiving the detection signals, a detection signal returning unit 233 of the second component 210 returns, as return signals, respective signal waveforms of the received detection signals to the first component 110. A detection signal judging unit 126 of the first component 110 judges authenticity of the received return signals based on the transmitted detection signals. When the judging unit judges that the received return signals are not authentic, a tamper-resistance control unit 127 adds a restriction to the communication performed between the first component 110 and the second component 210.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: August 12, 2014
    Assignee: Panasonic Corporation
    Inventors: Takeshi Nakayama, Masahiro Ishii
  • Patent number: 8788892
    Abstract: System and method for testing a radio frequency (RF) device under test (DUT) communicating using multiple radio access technologies (RATs). Single data signal sequences having characteristics of multiple RATs as prescribed by signal standards are exchanged between a tester and DUT. The tester and DUT process received signal sequences substantially in parallel with their reception. A pattern of contemporaneous signal sequence reception and processing continues for as many RATs as the DUT is capable of supporting.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: July 22, 2014
    Assignee: Litepoint Corporation
    Inventors: William L Barker, Jr., James Lawrence Banzen
  • Patent number: 8782499
    Abstract: An apparatus and method for transmitting and receiving data in a wireless communication is provided. The method includes determining a number of zero-padding bits, determining a number (Npad) of bit groups in which all bits are padded with zeros, padding the all bits within 0th to (Npad?1)th bit groups indicated by a shortening pattern with zeros, mapping information bits to bit positions which are not padded in Bose Chaudhuri Hocquenghem (BCH) information bits, BCH encoding the BCH information bits to generate Low Density Parity Check (LDPC) information bits, and LDPC encoding the LDPC information bits to generate a zero-padded codeword, wherein the shortening pattern is defined as an order of bit groups defined as 6, 5, 4, 9, 3, 2, 1, 8, 0, 7, 10 and 11.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: July 15, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hong-Sil Jeong, Sung-Ryul Yun, Hyun-koo Yang, Alain Mourad, Ismael Gutierrez
  • Patent number: 8645788
    Abstract: A system receives a first word on which to perform error correction; identifies combinations in which encoded bits, within the first word, can be inverted; generates candidate words based on the first word and the combinations; decodes the candidate words; determines distances between the decoded words and the first word; selects, as a second word, one of the decoded words associated with a shortest distance; compares the second word to the first word to identify errors within the first word; generates a value to cause a reliability level of the first word to increase when a quantity of the errors is less than a threshold; generates another value to cause a reliability level of the first word to decrease when the quantity of the errors is not less than the threshold; and outputs a third word based on the first word, and the value or the other value.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: February 4, 2014
    Assignee: Infinera Corporation
    Inventors: Jeffrey T. Rahn, Han Henry Sun, Stanley H. Blakey
  • Patent number: 8639996
    Abstract: Systems, methods, apparatus, devices and computer program products enhance uplink inter-cell interference cancellation with HARQ retransmissions. The decoding of a data packet depends on whether the interfering packet was decoded. Since the interfering packet is itself transmitted using a HARQ process, the transmission by the victim UT can be accomplished to take this situation into account. The latency of the victim UT can be varied based on the need for energy efficient transmission. In accordance with one specific aspect, if the receiver can decode multiple packets simultaneously, high data rates can be achieved using packet pipelining.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: January 28, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Petru C. Budianu, Ravi Palanki
  • Patent number: 8627171
    Abstract: A method and apparatus for generating a Cyclic Redundancy Check (CRC) encoded message in a communication system are provided. The method includes generating the message, generating a first CRC for the message, generating a second CRC for the message, scrambling the first CRC by a first bit sequence of the message, and scrambling the second CRC by a second bit sequence of the message. The apparatus includes a message generator, a first CRC encoder, and a second CRC encoder. The message generator generates a message. The first CRC encoder generates a first CRC for the message, and scrambles the first CRC by a first bit sequence of the message. The second CRC encoder generates a second CRC for the message, and scrambles the second CRC by a second bit sequence of the message.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: January 7, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Zhouyue Pi
  • Patent number: 8612829
    Abstract: A communicating unit used in an X-ray image pickup apparatus in this invention has an error detecting function to detect communication errors, and an FIFO for temporarily storing data received from a control and image processing apparatus, which is an external apparatus, by a receiving function of a communication control unit. Only when no error is detected within a predetermined period before and after receipt of data, by the receiving function of the communication control unit, from the control and image processing apparatus, a transmitting function of the communication control unit performs controls to transmit and write the data received and temporarily stored in the FIFO to/in an external portion. Thus, when a cable is plugged or unplugged or the control and image processing apparatus which is an external apparatus is rebooted, the error detecting function detects this as a communication error. In such cases also, an inadvertent writing of the data can be prevented.
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: December 17, 2013
    Assignee: Shimadzu Corporation
    Inventor: Kenji Kimura
  • Patent number: 8578254
    Abstract: Systems and methods are provided for generating error events for decoded bits using a Soft output Viterbi algorithm (SOVA). A winning path through a trellis can be determined and decoded information can be generated. Path metric differences can be computed within the trellis based on the winning path. A plurality of error event masks and error event metrics can be generated based on the decoded information and the path metric differences.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: November 5, 2013
    Assignee: Marvell International Ltd.
    Inventor: Manoj Kumar Yadav
  • Patent number: 8572447
    Abstract: A method of testing a data connection using at least one test sequence, the method including providing a first bit sequence by a first generator; duplicating the first bit sequence to generate a second bit sequence identical to the first; and generating the at least one test sequence based on the first and second bit sequences and transmitting the at least one test sequence over a data connection to be tested.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: October 29, 2013
    Assignee: STMicroelectronics (Grenoble 2) SAS
    Inventor: Hervé Le-Gall
  • Patent number: 8522104
    Abstract: A method and controller for sending data frames over a lossy bidirectional link between integrated circuit chips is disclosed. Upon transmission, frames are stored in a buffer. The detection of errors is indicated and triggers retransmission of the erroneously received frame, but acknowledgement of correctly received frames is not indicated. Instead, the sending controller assumes that frames were correctly received if no error indication is received after a period of time. The period of time is the maximum amount of time that would be taken for the sending controller to receive an error indication if the frame was received with an error. After said period of time, the sent frame is discarded from the buffer.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: August 27, 2013
    Assignee: Arteris S.A.
    Inventors: Philippe Martin, Luc Montperrus
  • Patent number: 8495441
    Abstract: A method for adjusting a memory signal phase is applied to data access between a memory controller and a dynamic random access memory (DRAM) of an electronic apparatus. The method includes writing a test data into the DRAM by the memory controller in response to a predetermined status of the electronic apparatus; generating a first data strobe signal; offsetting a phase of the first data strobe signal to access and verify the test data to generate a verification result; generating a target offset value in response to the verification result; and offsetting the phase of the first data strobe signal by the target offset value for subsequent operations.
    Type: Grant
    Filed: November 25, 2010
    Date of Patent: July 23, 2013
    Assignee: MStar Semiconductor, Inc.
    Inventor: Yung Chih Chiang
  • Patent number: 8495445
    Abstract: There is provided with an apparatus including: a receiving section which receives a frame including an error detection code from a network; an error detecting section which performs error detection on the frame received by the receiving section based on the error detection code; a data storage which stores data in a predetermined field of the frame as replacement data in a case where an error is not detected in the frame; a data selecting section which selects the replacement data from the data storage in a case where an error is detected in the frame; and a frame generating section which generates a frame in which data in the predetermined field of the frame is replaced with the replacement data selected by the data selecting section in the case where an error is detected in the frame; wherein the error detecting section performs error detection on the generated frame.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: July 23, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Koji Tsuchie
  • Patent number: 8489970
    Abstract: A receiver includes a seed recovery module and a pseudo-random binary sequence generator. The seed recovery module is configured to receive a pseudo-random binary sequence and a signal including a seed value, recover the seed value from the signal using the pseudo-random binary sequence, and determine a likelihood that a bit of the seed value was recovered accurately. The pseudo-random binary sequence generator is configured to generate the pseudo-random binary sequence, and adjust the pseudo-random binary sequence based on the likelihood until the likelihood is greater than a threshold.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: July 16, 2013
    Assignee: Marvell International Ltd.
    Inventors: Jamal Riani, Haoli Qian
  • Patent number: 8458559
    Abstract: A method of encoding a bit sequence over a Physical Downlink Control Channel (PDCCH) having Downlink Control Information (DCI) including: determining DCI bits to provide a DCI bit sequence; performing a CRC calculation on the DCI bit sequence to provide a CRC parity bit sequence; scrambling the CRC parity bit sequence to provide a scrambled CRC bit sequence; if the DCI format is LTE-A, further scrambling the DCI together with the attached scrambled CRC bit sequence to provide a LTE-A scrambled bit sequence; channel coding either the DCI attached scrambled CRC bit sequence or LTE-A scrambled bit sequence to provide a channel coded bit sequence; modulating the channel coded bit sequence to provide a modulated symbol sequence; layer mapping the modulated symbol sequence to one or more antennas associated with a transmitter to provide one or more layers having a symbol sequence; and precoding the layered symbol sequences.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: June 4, 2013
    Assignee: NEC Corporation
    Inventors: Jiun Siew, Phong Nguyen
  • Patent number: 8429515
    Abstract: An apparatus and a method for transmitting and receiving control information in a Multiple Input Multiple Output (MIMO) system are provided. A method of a base station for transmitting control information to a terminal in the MIMO system includes transmitting first control information for every transmission mode except for a Multiple-User (MU)-MIMO mode, to the terminal over a control channel of a subframe, and transmitting second control information for the MU-MIMO mode to the terminal over a data channel of the subframe.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: April 23, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Su Han, Hi-Chan Moon, Jun-Sung Lim, Seong-Woo Ahn
  • Patent number: 8423850
    Abstract: A pulse transmission technique is used for wireless communication between a microcomputer (13) having a debugging support circuit (17) and a debugger (13). The pulse transmission technique is based on magnetic field coupling between a first coil (14) provided for the microcomputer and a second coil (8) coupled with the debugger. During an initialization operation, the microcomputer performs a process of configuring a communication condition of the wireless communication to perform the wireless communication. The microcomputer awaits control from the debugger when the microcomputer establishes communication with the debugger. The debugger awaits establishment of the communication and proceeds to control of the microcomputer in accordance with the wireless communication. It is possible to provide contactless interface for system debugging without the need for a large antenna or a large-scale circuit for modulation and demodulation.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: April 16, 2013
    Assignees: Renesas Electronics Corporation, Keio University
    Inventors: Shunichi Iwata, Yoichi Takahata, Toshihiko Sugahara, Yutaka Takikawa, Yoshihiro Shimizu, Hiroki Ishikuro, Tadahiro Kuroda
  • Patent number: 8392801
    Abstract: A decoding device is provided, which can minimize the number of coded data addition requests by the decoding device, reduce processing time to prevent delay, and minimize frame rate reduction. The decoding device performs data reproduction by performing error correction of data of a predicted image using coded data which is an error correction code generated based on original data. The decoding device includes a coded bit receiving part, a preset value generating/updating part, a decoding part that performs a decoding process based on a preset value or a predicted value, and coded bits, and a bit addition request determining part that determines whether or not there is a need to request additional coded bits from decoding process results from the decoder. When it is determined to perform a decoding process with additional coded data, the preset value generating/updating part updates the preset value based on previous decoding process results.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: March 5, 2013
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Takashi Nishi
  • Patent number: 8370706
    Abstract: An optical device transmits ECC codewords using an interleaved technique in which a single ECC codeword is transmitted over multiple optical links. In one particular implementation, the device may include an ECC circuit configured to supply ECC codewords in series, the codewords being generated by the ECC circuit based on input data and each of the codewords including error correction information and a portion of the data. The device may further include a serial-to-parallel circuit configured to receive each of the codewords in succession, and supply data units in parallel, each of the data units including information from a corresponding one of the codewords; an interleaver circuit to receive the data units in parallel and output a second data units in parallel, each of the second data units including bits from different ones of the data units; and a number of output lines, each of which supplying a corresponding one of the second data units.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: February 5, 2013
    Assignee: Infinera Corporation
    Inventors: Chung Kuang Chin, Edward E. Sprague, Swaroop Raghunatha
  • Patent number: 8365046
    Abstract: A method for correcting at least one error in a data transmission over a packet-based communication network includes the steps of: generating a sequence of data packets for transmission over the packet-based communication network, the sequence of data packets being arranged into a plurality of packet frames, each of at least a subset of the packet frames including at least a primary data packet and a number of redundant data packets which is a function of a prescribed redundancy pattern, the subset of packet frames having a non-uniform distribution of redundant data packets therein; transmitting the sequence of data packets over the communication network; and recovering at least one missing data packet in the sequence of data packets using at least one corresponding redundant data packet in at least one subsequently received packet frame when the missing data packet is identified in a receiver of the sequence of data packets.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: January 29, 2013
    Assignee: LSI Corporation
    Inventors: Ximing Chen, Chengzhou Li, Herbert B. Cohen
  • Patent number: 8347166
    Abstract: A device and a method for optimally adjusting transmitter parameters are provided to optimize transmission performance of a digital signal system. The device comprises an error signal analyzing unit and a step length adjustment unit which are connected in signal with each other; the error signal analyzing unit analyzes an error signal and makes a determination to carry out a transmitter parameter adjustment operation; the step length adjustment unit calculates and determines an adjustment direction and an adjustment step length of the transmitter parameter; and a transmitter parameter adjusting unit carries out operations of direction adjustment and step length adjustment of the transmitter parameter according to the result of the determination.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: January 1, 2013
    Assignee: ZTE Corporation
    Inventors: Qi Zhang, Xiao Peng
  • Patent number: 8335948
    Abstract: A method is provided for quantizing an input signal. The number of equal quantized values during a period of time is counted thereby obtaining said number of counts. The counts exceeding a count threshold being defined as reliable counts, the counts lower than or equal to the count threshold being defined as unreliable counts. Two unreliable counts are calculated using a lower and a higher value for a first parameter in an extrapolating function. The first parameter is considered equivalent to the lower value if the two unreliable counts differ less than or equal to a count difference. The invention further discloses a corresponding tail extrapolator.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: December 18, 2012
    Inventor: Nebojsa Stojanovic
  • Patent number: 8327212
    Abstract: A data processing device which performs a data transmission between semiconductor devices using a plurality of signal lines. In the data processing device, when there occurs an error in a data transmission from a transmitting device to a receiving device using a plurality of signal lines, data in which the error has occurred is stored. The stored data is compared bit by bit with non-erroneous data, thereby designating a bit in which error has occurred in the stored data.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: December 4, 2012
    Assignee: Fujitsu Limited
    Inventors: Junji Ichimiya, Hiroshi Nakayama, Shintarou Itozawa
  • Patent number: 8321771
    Abstract: Systems and methods are provided for generating error events for decoded bits using a Soft output Viterbi algorithm (SOYA). A winning path through a trellis can be determined and decoded information can be generated. Path metric differences can be computed within the trellis based on the winning path. A plurality of error event masks and error event metrics can be generated based on the decoded information and the path metric differences.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: November 27, 2012
    Assignee: Marvell International Ltd.
    Inventor: Manoj Kumar Yadav
  • Patent number: 8307272
    Abstract: A network device and a method for controlling the same. The device and method each performed the operations of transforming an input signal so as to allow the input signal to be divided according to frequency bands and resolutions, comparing the transformed input signal with abnormal signal information stored in an abnormal signal database (DB), and determining whether the input signal is a normal signal. When the input signal is a normal signal, the network and method each perform the operation of delivering the transformed input signal to a codec.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: November 6, 2012
    Assignee: Samsung Techwin Co., Ltd.
    Inventor: Jae-hoon Lee
  • Patent number: 8286037
    Abstract: A method and device for adjusting communications power are used for detecting a communications condition between a connection port and a connection target, and a communications-supporting power of the connection port that includes at least one of a transmitting power and a receiving power is adjusted according to a detected communications condition. Therefore, accuracy of data transmission and reception is ensured, and power used for data transmission and reception is reduced.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: October 9, 2012
    Assignee: Realtek Semiconductor Corp.
    Inventors: Yi-Sheng Lu, Chih-Chieh Yen, Chun-Chieh Huang, Jin-Jie Hung
  • Patent number: 8276052
    Abstract: A system and method for recovering the seed of a pseudo-random binary sequence (PRBS) using soft decisions is disclosed. In some implementations, a log-likelihood ratio is calculated to determine the certainty with which each bit in the seed has been recovered, and in some implementations, the value of the PRBS is used in the calculation of the log-likelihood ratio. In some implementations, a linear feedback shift register stores the log-likelihood ratio for each bit in the sequence.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: September 25, 2012
    Assignee: Marvell International Ltd.
    Inventors: Jamal Riani, Haoli Qian
  • Publication number: 20120240017
    Abstract: In a system, a data receiving device comprises a timing signal generation unit that generates a timing signal used for receiving the divided transmission data in each of the transmission paths, a data receiving unit that receives the divided transmission data transmitted by the data transmitting device for each of the transmission paths by using the timing signal generated by the timing signal generation unit, and an error detection unit that extracts the error detection information from the divided transmission data received for each of the transmission paths by the data receiving unit and detects an error of transmission data included in the divided transmission data by using the extracted error detection information.
    Type: Application
    Filed: January 4, 2012
    Publication date: September 20, 2012
    Applicant: FUJITSU LIMITED
    Inventor: Kenji UCHIDA
  • Patent number: 8271852
    Abstract: A method of recovering data in a line signal which is predicted to be subjected to repetitive noise impulses, the line signal comprising a series of data frames, the method comprising the steps of: predicting a group comprising one or more frames in said line signal which are expected to be corrupted by a noise signal; blanking said group of one or more frames which are predicted to be corrupted; determining the preceding and succeeding frames adjacent to said group; and including in each said group of one or more frames one or more parity blocks wherein if said noise signal deviates from its predicted timing interval or duration and corrupts the data carried in one or more of said frames adjacent to said group, the corrupted data is recovered using one or more of said parity blocks of said group of blanked frames and the other one of said adjacent frames.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: September 18, 2012
    Assignee: British Telecommunications PLC
    Inventor: Robert H Kirkby
  • Patent number: 8214730
    Abstract: A signal processing system is provided with a transmitting-side apparatus transmitting a digital signal, and a receiving-side apparatus receiving the digital signal. The transmitting-side apparatus includes a digital signal transmitter transmitting the digital signal and a signal controller controlling the digital signal. The receiving-side apparatus includes a digital signal receiver receiving the digital signal, an error rate detector detecting the error rate of the digital signal received, and a receiving-side controller transmitting error rate data based on the detected error rate to the transmitting-side apparatus. The transmitting-side apparatus further includes a transmitting-side controller receiving the error rate data and controlling the signal controller in response to the error rate data.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: July 3, 2012
    Assignee: Renesas Electronics Corporation
    Inventor: Kenta Masumori
  • Patent number: 8181078
    Abstract: Methods and systems for simplified error recovery in a SAS device. A SAS device (e.g., a SAS/SSP target device such as a storage device) enhanced in accordance with features and aspects hereof NAKs a received frame that has an error and then NAKS all subsequently received frames, regardless of whether received with or without error, until the connection is closed. The second SAS device (e.g., a SAS/SSP initiator) then performs required error recovery by re-establishing a connection and re-transmitting all previously NAKed frames. The enhanced SAS thereby simplifies logic for error recovery.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: May 15, 2012
    Assignee: LSI Corporation
    Inventor: Ross J. Stenfort
  • Patent number: 8156397
    Abstract: Aspects of a method and system for feedback of decoded data characteristics to decoder in stored data access and decoding operations to assist in additional decoding operations are presented. Aspects of the system may include a decoder that enables decoding of a portion of encoded data. A processor may enable generation of at least one hypothesis based on the decoded portion of encoded data and/or redundancy information associated with at least the decoded portion of the encoded data. The decoder may enable generation of one or more subsequent portions of decoded data based on the generated at least one hypothesis.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: April 10, 2012
    Assignee: Broadcom Corporation
    Inventors: Arie Heiman, Arkady Molev-Shteiman