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| Number | Title | Issue Date |
| 8108756 | Techniques to perform forward error correction for an electrical backplane Techniques to perform forward error correction for an electrical backplane are described. An apparatus comprises a physical layer unit having a forward error correction sublayer to perform forward error correction using a single bit to represent a two bit synchroniz... | 01/31/2012 |
| 8103941 | Low overhead soft error tolerant flip flop A system and method for soft error recovery (SER) within a flip-flop. A first stage of the flip-flop receives an ungated input clock signal. A second stage of the flip-flop receives a gated input clock signal. The second stage may also store a prebuffered data outpu... | 01/24/2012 |
| 8046667 | Synchronization loss resilient digital communication system using forward erasure correction There is provided an apparatus for enabling recovery of missing information in a digital communication system. The apparatus includes a Forward Erasure Correction (FXC) encoder for computing FXC parity superpackets across information superpackets for subsequent reco... | 10/25/2011 |
| 7984362 | Method for static fault code synchronization in an internal combustion engine A method to synchronize Fault Code Memory between at least a first module and a second module in an engine controller unit; each said module in electronic communication with each other and having volatile and non volatile memory; said modules in electronic communica... | 07/19/2011 |
| 7958434 | Method for synchronizing to a digital signal In a method for synchronizing to a signal encoded as a group of blocks, a data symbol is received and stored with previously received data symbols as a current potential group. Errors, if any, are detected in the current potential group, and a level of errors associ... | 06/07/2011 |
| 7954040 | Encoding method and apparatus for cross interleaved cyclic codes The invention relates to an encoding method for encoding a codeword to obtain a parity code. The code is embedded in the codeword and divides the codeword to have intermediate symbol locations between a first and a second set of data symbols. Each data symbol forms ... | 05/31/2011 |
| 7676733 | Techniques to perform forward error correction for an electrical backplane Techniques to perform forward error correction for an electrical backplane are described. An apparatus comprises a physical layer unit having a forward error correction sublayer to perform forward error correction using a single bit to represent a two bit synchroniz... | 03/09/2010 |
| 7669108 | Coding system and decoding system In a coding system wherein an error correction/detection coding is combined with a synchronization recovering technique using a synchronization code, the problems of a pseudo synchronization and a step out due to error detection are solved. There is provided a codin... | 02/23/2010 |
| 7512866 | Information recording/reproducing apparatus, and information recording medium In an information recording, a first data processor divides input data into a plurality of frames so as to arrange the plurality of frames for each unit block. The unit block is a unit of error-correction with respect to the input data and the frames include first i... | 03/31/2009 |
| 7509562 | Maintaining data integrity for extended drop outs across high-speed serial links Improved error correction techniques and circuitry are provided. The error correction circuitry may be integrated with a programmable logic device (PLD), or it may be wholly or partly on a separate integrated circuit. The circuitry may be capable of providing data r... | 03/24/2009 |
| RE40661 | Error prevention method for multimedia data An error protection method for multimedia improves data recovery and channel throughput in channels which cause a random error and a burst error by using a rate compatible punctured convolutional code (RCPC) and an automatic retransmission on request (ARQ). In a pro... | 03/10/2009 |
| 7484163 | Information recording/reproducing apparatus, and information recording medium In an information recording, a first data processor divides input data into a plurality of frames so as to arrange the plurality of frames for each unit block. The unit block is a unit of error-correction with respect to the input data and the frames include first i... | 01/27/2009 |
| 7484164 | Information recording/reproducing apparatus, and information recording medium In an information recording, a first data processor divides input data into a plurality of frames so as to arrange the plurality of frames for each unit block. The unit block is a unit of error-correction with respect to the input data and the frames include first i... | 01/27/2009 |
| 7480849 | Information recording/reproducing apparatus, and information recording medium In an information recording, a first data processor divides input data into a plurality of frames so as to arrange the plurality of frames for each unit block. The unit block is a unit of error-correction with respect to the input data and the frames include first i... | 01/20/2009 |
| 7372916 | Process and devices for transmitting digital signals over buses and computer program product therefore Digital signals are transmitted on a bus at given instants selectively in a non-encoded format and an encoded format. The decision whether to transmit the signals in non-encoded format or in encoded format is taken in part, based on a comparison of the signal to be ... | 05/13/2008 |
| 7370262 | Apparatus and method generating error flag for error correction An error flag generation apparatus and method for error correction, wherein the apparatus includes: a frame-sync error memory which stores frame-sync error information for each data block; a BIS (Burst Indicator Subcode) error flag memory which stores a BIS error fl... | 05/06/2008 |
| 7369620 | Channel noise estimating method and apparatus applied to a multi-carrier system A channel noise estimating method and apparatus applied to a multi-carrier system are disclosed, where data symbols received by a receiving unit are applied to reconstruct the original transmitted data symbols. The reconstructing process is performed by either a sof... | 05/06/2008 |
| 7353436 | Synchronization code methods A system, method and computer software product are provided. One embodiment of the present invention provides a method for generating and employing numerical sequences that may be used for synchronization codes. In one embodiment of the present invention, the deriva... | 04/01/2008 |
| 7353447 | System and method for representing compressed information The present invention provides a system and method for storing re-synchronization, error correction and/or error detection data within an existing communication protocol, while still maintaining full compliance to a standard, such as the MPEG-2 AAC standard. By doin... | 04/01/2008 |
| 7350118 | Method and apparatus for recording information in concatenated manner A method of recording data as presence/absence of marks on an information recording medium includes a step of obtaining data pieces, each of which has size of one block and is made by adding error-correction-purpose data to information data, a step of attaching to e... | 03/25/2008 |
| 7346830 | Usage of an SDRAM as storage for correction and track buffering in frontend ICs of optical recording or reproduction devices A method and arrangement for using Synchronous Dynamic Random Access Memory (SDRAM) as storage for correction and track buffering in front end ICs of optical recording or reproduction devices. Data to be stored or read is organized in appropriate bursts for accelera... | 03/18/2008 |
| 7334176 | Determination of the presence of additional coded data in a data frame An mp3-standard bitstream is formatted into a sequence of fixed-length data frames. These include headers, side information, main information and a remaining data field without generally defined information denoted as ‘ancillary data’. The mp3PRO format is an ex... | 02/19/2008 |
| 7327750 | Receiving apparatus based on communications protocol An example receiving apparatus includes a reception clock controlling section for controlling clock supply to the components thereof. A reception section receives a communication packet transmitted from a destination and a received packet analyzing section judges wh... | 02/05/2008 |
| 7328396 | Cyclic redundancy check generating circuit A circuit, a method, and a method of designing the circuit, the circuit including: multiple W-bit packet data slice latches; a data partition comprising multiple data XOR subtree levels and having data latches between the data XOR subtree levels; a remainder partiti... | 02/05/2008 |
| 7320101 | Fast parallel calculation of cyclic redundancy checks Circuits, methods, and apparatus for the fast parallel calculation of CRCs. One embodiment provides a feedforward path that combines common terms to simplify input logic. Common expressions that appear in multiple terms in the feedforward path are implemented using ... | 01/15/2008 |
| 7318188 | Hardware-efficient CRC generator for high speed communication networks A cyclic redundancy check (CRC) generator, in accordance with a specific embodiment of the present invention, generates a 32-bit CRC for each packet whose data bytes are carried over a 128-bit bus by first dividing the data bytes by a 123nd degree generat... | 01/08/2008 |
| 7315556 | Shared CODEC in multiprocessor systems A single coder/decoder shared among several multiprocessors in a digital signal processing system through time-division multiplexing between multiple processors to enhance signal processing capabilities by assigning different digital-to-analog channels to different ... | 01/01/2008 |
| 7302631 | Low overhead coding techniques A low overhead coding technique is disclosed. In one particular exemplary embodiment, the low overhead coding technique may be realized as a method for coding information comprising receiving a block of information, and encoding the block of information such that a ... | 11/27/2007 |
| 7269679 | PCI-X error correcting code (ECC) pin sharing configuration A method is provided for utilizing four error correcting code (ECC) pin connections of a PCI/PCI-X bus for one of Grant (GNT) and Request (REQ) pin connections. The method determines a mode of the PCI bus to be PCI-X Mode 1, PCI-X Mode 2, or PCI. If the determined m... | 09/11/2007 |
| 7266753 | Information recording/reproducing apparatus, and information recording medium In an information recording, a first data processor divides input data into a plurality of frames so as to arrange the plurality of frames for each unit block. The unit block is a unit of error-correction with respect to the input data and the frames include first i... | 09/04/2007 |
| 7260653 | Method and device for the synchronization between two networks The present invention relates to a method of synchronization between communication networks exchanging information by frame of informations, each communication network having clock and the number of clock pulses is monitored by a counter the synchronization is made ... | 08/21/2007 |
| 7251220 | AIS transmission method in ATM communication system, transmission side ATM unit and ATM communication system The present invention is intended to prevent from billing an unnecessary charge to an user by omitting AIS signals transmitted/received between a transmission side ATM unit and a receiving side ATM unit when a loss of service occurs in a communication network in whi... | 07/31/2007 |
| 7243297 | Method for bit recovery in an asymmetric data channel A demodulator performs bit recovery in an asymmetric data channel, such as an optical recording media, by detecting runlength violations prior to demodulation, and correcting the detected runlength violations prior to the demodulation. ... | 07/10/2007 |
| 7231584 | Method for error correction in packet-oriented data transmission with transmission blocks that are better determined by descriptors Additional descriptors are used which, unlike known descriptors, only describe the size of the subset and the difference in correction capability. The additional descriptors also identify a defined separation between a signaling block and at least one data block, in... | 06/12/2007 |
| 7231583 | Communication method and apparatus In a frame sync method, a receiver searches for the presence of an N-symbol long unique word pattern. For each possible frame sync detected, the receiver proceeds to demodulation and FEC processing. After each iteration of the FEC decoder, the detected unique word p... | 06/12/2007 |
| 7227918 | Clock data recovery circuitry associated with programmable logic device circuitry A programmable logic device (“PLD”) is augmented with programmable clock data recover (“CDR”) circuitry to allow the PLD to communicate via any of a large number of CDR signaling protocols. The CDR circuitry may be integrated with the PLD, or it may be wholl... | 06/05/2007 |
| 7219297 | Method and device for generating a synchronization variable and the corresponding integrated circuit and digital disc drive A synchronization variable intended for a second clock signal is generated from a first clock signal and a phase variation signal. A first approximation of the second clock signal is determined, and other approximations close to the first approximation are also dete... | 05/15/2007 |
| 7213190 | Data processing apparatus and method A data processing apparatus according an aspect of this invention has a syndrome calculation unit configured to calculate the syndrome of a demodulated data sequence. The syndrome calculation unit includes a calculation unit configured to make the calculation requir... | 05/01/2007 |
| 7209641 | Decoder A decoder having improved accuracy for reading data. The decoder decodes reproduced data including preamble data, to which a first synchronization pattern is added, and information data, which follows the preamble data and to which a second synchronization pattern i... | 04/24/2007 |
| 7206417 | Wireless digital transmission system for loudspeakers This invention relates to a wireless digital transmission system for loudspeakers comprising: compression means for the file representing the digital audio signal of the “compact disc” type, a transmission device comprising mea... | 04/17/2007 |
