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Class Information
Number: 714/792
Name: Error detection/correction and fault detection/recovery > Pulse or data error handling > Digital data error correction > Forward error correction by tree code (e.g., convolutional) > Trellis code
Description: Subject matter where, for a convolutional code of k bits length, an inverse coding operation is performed in which 2k-1 decision bits are used to select an output bit and where after many branches, the most probable path will be selected with a high degree of certainty, and where the branches form a mesh pattern (i.e., branches start at a plurality of points and intersect other branches).

Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14

Patent Number Title Of Patent Date Issued
8711013 Coding circuitry for difference-based data transformation Apr. 29, 2014
8713401 Error recovery storage along a memory string Apr. 29, 2014
8707145 System, method and apparatus for tail biting convolutional code decoding Apr. 22, 2014
8707147 Viterbi decoder method and apparatus with RI detector in servo channel Apr. 22, 2014
8694877 Max-log-map equivalence log likelihood ratio generation soft viterbi architecture system and method Apr. 8, 2014
8694876 Method and apparatus for data transmission using multiple transmit antennas Apr. 8, 2014
8687746 SMU architecture for turbo decoder Apr. 1, 2014
8656263 Trellis-coded modulation in a multi-level cell flash memory device Feb. 18, 2014
8650468 Initializing decoding metrics Feb. 11, 2014
8635516 Method and apparatus for joint equalization and decoding of multidimensional codes transmitted over multiple symbol durations Jan. 21, 2014
8631309 Forward error correction with extended effective block size Jan. 14, 2014
8625221 Detector pruning control system Jan. 7, 2014
8627189 High performance digital signal processing in software radios Jan. 7, 2014
8612837 BM/LLR computations for multi-dimensional TCM/BCM codes Dec. 17, 2013
RE44614 Reliability unit for determining a reliability value for at least one bit decision Nov. 26, 2013
8595576 Systems and methods for evaluating and debugging LDPC iterative decoders Nov. 26, 2013
8593315 A/D conversion device and A/D conversion correcting method Nov. 26, 2013
8576958 Method for soft modulation in a wireless telecommunication network Nov. 5, 2013
8578254 Modified trace-back using soft output Viterbi algorithm (SOVA) Nov. 5, 2013
8572470 Memory-efficient storage method: a fast BJCR based decoder implementation scheme Oct. 29, 2013
8559540 Apparatus and method for trellis-based detection in a communication system Oct. 15, 2013
8555147 DTV transmitting system and receiving system and method of processing broadcast data Oct. 8, 2013
8543896 Iterative decoder Sep. 24, 2013
8542577 Digital television transmitter/receiver and method of processing data in digital television transmitter/receiver Sep. 24, 2013
8539325 Parity generating apparatus and map apparatus for turbo decoding Sep. 17, 2013
8527854 Error detection module, and error correction device including the same Sep. 3, 2013
8522119 Reduction in decoder loop iterations Aug. 27, 2013
8498326 Method and apparatus for forward error correction Jul. 30, 2013
8488667 DTV transmitter and method of coding data in DTV transmitter Jul. 16, 2013
RE44335 System and method for providing terrestrial digital broadcasting service using single frequency network Jul. 2, 2013
8473830 Viterbi decoder method and apparatus with RI detector in servo channel Jun. 25, 2013
8473823 Encoding device and decoding device Jun. 25, 2013
8473828 Minimal hardware implementation of non-parity and parity trellis Jun. 25, 2013
8468415 Error recovery storage along a memory string Jun. 18, 2013
8442163 List-viterbi hard iterative decoder for multilevel codes May. 14, 2013
8438464 Digital television transmitter/receiver and method of processing data in digital television transmitter/receiver May. 7, 2013
8423874 Transmitter and receiver for terrestrial digital multimedia broadcasting Apr. 16, 2013
8413021 Efficient soft value generation for coded bits in a turbo decoder Apr. 2, 2013
8411761 Sub-channel acquisition in a digital television receiver designed to receive mobile/handheld signals Apr. 2, 2013
8411776 System and method for quantization of channel state vectors Apr. 2, 2013
8407570 Decoding methods and apparatus for fractional multidimensional trellis coded modulation systems Mar. 26, 2013
8397150 Method, apparatus and computer program for calculating a branch metric Mar. 12, 2013
8391424 Method and system for UMTS HSDPA shared control channel processing Mar. 5, 2013
8392811 Methods and systems for a-priori decoding based on MAP messages Mar. 5, 2013
8386896 8VSB DTV signals with PCCC and subsequent trellis coding Feb. 26, 2013
8386898 Method and apparatus for data transmission using multiple transmit antennas Feb. 26, 2013
8379340 Circuit and method for detecting the phase of a servo signal Feb. 19, 2013
8375281 Method and apparatus for storing survivor paths in a viterbi detector using systematic pointer exchange Feb. 12, 2013
8365056 Receiver equipped with a trellis viterbi decoder Jan. 29, 2013
8365051 Device, system and method of decoding wireless transmissions Jan. 29, 2013

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