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Error Detection/correction And Fault Detection/recovery > Pulse Or Data Error Handling > Digital Data Error Correction > Forward Correction By Block Code > Using Symbol Reliability Information (e.g., Soft Decision) Using Symbol Reliability Information (e.g., Soft Decision)Using Symbol Reliability Information (e.g., Soft Decision) patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.10/04/07 - 20070234184 - Methods and apparatus for reducing error floors in message passing decoders An iterative message passing decoder, e.g., an LDPC decoder, operating in conjunction with a soft input-soft output signal processing unit, e.g., an ISI detector, has an error floor performance region influenced by the decoder's sub-optimal message passing nature. Error floor reduction is achieved by a simple message re-initialization mechanism. Decoder ... 08/16/07 - 20070192667 - Cyclic redundancy check (crc) based error correction method and device The communication method includes the use of CRC codes for additional error correaction in addition to the error detection capability. The method is for error detection and correaction in a received message that includes N message bits and M Cyclic Redundancy Check (CRC) bits appended thereto. It is determined whether ... 08/16/07 - 20070192666 - Systems and methods for error reduction associated with information transfer Various systems and methods for error reduction in a digital information system are disclosed herein. As one example, a digital storage system is provided that includes a storage medium that with an encoded data set accessible via a buffer. The systems further include a soft output Viterbi algorithm channel detector ... 06/07/07 - 20070130497 - Adaptive decoder for decoding an asynchronous data stream A data decoder for decoding an asynchronous incoming data stream includes a bit engine receiving information describing the incoming data stream and generating a decoded data stream. In one embodiment, the bit engine includes a best-fit bit analysis block performing a pattern match operation for each data bit of the ... 04/05/07 - 20070079223 - Method and system for information processing A novel technique for information processing is provided, in which the decoding of channel encoded data is enhanced by using an inherent correlation of the data. It is demonstrated that the correlation is highly robust with respect to bit errors introduced by the transmission channel. Thus, the correlation represents additional ... 03/15/07 - 20070061687 - Soft decoding method and apparatus, error correction method and apparatus, and soft output method and apparatus Provided are a decoding method and apparatus, an error correction method and apparatus, and a soft output method and apparatus to improve the performance of soft error correction. A method of decoding a codeword encoded into a code that can be soft iterative decoded includes: receiving a soft value of ... 01/18/07 - 20070016841 - Variable code rate and signal constellation turbo trellis coded modulation codec Variable code rate and signal constellation turbo trellis coded modulation (TTCM) codec. A common trellis is employed at both ends of a communication system (in an encoder and decoder) to code and decode data at different rates. The encoding employs a single TTCM encoder whose output bits may be selectively ... 01/11/07 - 20070011589 - Nak-to-ack error detection and recovery According to one embodiment, a system is provided that allows a receiver to determine that an initial error message (such as a NAK message) was not correctly received by a transmitter, and to cause the transmitter to continue transmitting information corresponding to data that has not yet been successfully decoded ... 09/21/06 - 20060212781 - Enhanced turbo product code decoder system A method and apparatus for decoding a linear block encoded string of information bits comprising: converting the string into a plurality of codewords. Performing hard and soft decisions on each codeword to generate a hard and soft decision vector. Computing the syndrome and finding the location of the two minimum ... 07/20/06 - 20060161834 - Error correction decoder An error correction decoder possessing a decoding method with high error correction performance and capable of operating at a low operating frequency and on a reduced circuit scale. A decoding method based on the SOVA method for improving error correction performance and boosting reliability of the soft decision output by ... 07/13/06 - 20060156205 - 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 identification information, respectively. ... 07/06/06 - 20060150065 - Data detection and decoding system and a method of detecting and decoding data A data detection and decoding system in which a single parity bit added to the end of each code word by the encoder is used in the channel detector to improve the accuracy with which bit decisions are made in the channel detector. The bit estimates and the reliability estimates ... 01/26/06 - 20060020874 - Decoder performance for block product codes This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract. A method of improving block turbo decoder performance that comprises receiving soft input information corresponding to a first set of constituent codes of a block product code (900), scaling soft ... 12/15/05 - 20050278609 - Apparatus and method for erasure detection and soft-decision decoding in cellular system receiver Dislosed is an apparatus and method for erasure detection and soft-decision decoding in a cellular system receiver. In the present invention, a complex channel gain and a noise variance of a received symbol from a cellular system transmitter are estimated, and an erasure symbol (a symbol with high power interference) ... ### FreshPatents.com Support |