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Class Information
Number: 714/791
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) > Sequential decoder (e.g., fano or stack algorithm)
Description: Subject matter where a tree structure of the convolutional code is used for searching locally a path which is considered to be the most likely to produce a correct data sequence.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7617440 |
Viterbi traceback initial state index initialization for partial cascade processing |
Nov. 10, 2009 |
| 7587181 |
Method and system for a control scheme on power and common-mode voltage reduction for a transmitter |
Sep. 8, 2009 |
| 7562277 |
Data transmitting/receiving system and method thereof |
Jul. 14, 2009 |
| 7530010 |
Hybrid trace back apparatus and high-speed viterbi decoding system using the same |
May. 5, 2009 |
| 7487432 |
Method and apparatus for multiple step Viterbi detection with local feedback |
Feb. 3, 2009 |
| 7437656 |
Error correction of balanced codeword sequence |
Oct. 14, 2008 |
| 7406650 |
Variable code rate and signal constellation turbo trellis coded modulation codec |
Jul. 29, 2008 |
| 7380199 |
Method and apparatus for precomputation and pipelined selection of branch metrics in a reduced-state Viterbi detector |
May. 27, 2008 |
| 7292650 |
OFDM receiver and metric generator thereof |
Nov. 6, 2007 |
| 7216283 |
Iterative metric updating when decoding LDPC (low density parity check) coded signals and LDPC coded modulation signals |
May. 8, 2007 |
| 7191387 |
Method and apparatus for forward error correction |
Mar. 13, 2007 |
| 7178093 |
PRML system with a branch estimator |
Feb. 13, 2007 |
| 7096411 |
Method and apparatus for reliable resynchronization of sequential decoders |
Aug. 22, 2006 |
| 7031408 |
Mechanism for reducing recovery time after path loss in coded data communication system having sequential decoder |
Apr. 18, 2006 |
| 7020832 |
Turbo decoder and its calculation methods having a state metric |
Mar. 28, 2006 |
| 6993697 |
Method for obtaining from a block turbo-code an error correcting code of desired parameters |
Jan. 31, 2006 |
| 6961921 |
Pipeline architecture for maximum a posteriori (MAP) decoders |
Nov. 1, 2005 |
| 6889354 |
Sequence estimating |
May. 3, 2005 |
| 6807238 |
Method and apparatus for decoding M-PSK turbo code using new approximation technique |
Oct. 19, 2004 |
| 6728322 |
Sequential decoder, and receiver using sequential decoder |
Apr. 27, 2004 |
| 6725417 |
Sequential decoding apparatus and method |
Apr. 20, 2004 |
| 6701483 |
Fast search-based decoding scheme |
Mar. 2, 2004 |
| 6690752 |
Sequential decoder for decoding of convolutional codes |
Feb. 10, 2004 |
| 6621871 |
Incremental redundancy packet combiner and decoder |
Sep. 16, 2003 |
| 6513140 |
Method and device for decoding convolutional codes |
Jan. 28, 2003 |
| 6490327 |
System and method for self-adaptive maximum likelihood sequence detection using a T-algorithm |
Dec. 3, 2002 |
| 6484285 |
Tailbiting decoder and method |
Nov. 19, 2002 |
| 6460160 |
Chase iteration processing for decoding input data |
Oct. 1, 2002 |
| 6408421 |
High-speed asynchronous decoder circuit for variable-length coded data |
Jun. 18, 2002 |
| 6257756 |
Apparatus and method for implementing viterbi butterflies |
Jul. 10, 2001 |
| 6226333 |
QAM de-mapping circuit |
May. 1, 2001 |
| 6154504 |
Encoding method, encoding apparatus, decoding method, decoding apparatus, and recording medium |
Nov. 28, 2000 |
| 6134277 |
System and method for self-adaptive maximum likelihood sequence detection |
Oct. 17, 2000 |
| 6128765 |
Maximum A posterior estimator with fast sigma calculator |
Oct. 3, 2000 |
| 6075822 |
Traceback device of a trellis decoder |
Jun. 13, 2000 |
| 5812601 |
Coding for higher-level modulation |
Sep. 22, 1998 |
| 5742619 |
Method and apparatus for concatenated coding of mobile radio signals |
Apr. 21, 1998 |
| 5220570 |
Programmable viterbi signal processor |
Jun. 15, 1993 |
| 5079771 |
Bit and symbol timing recovery for sequential decoders |
Jan. 7, 1992 |
| 5014276 |
Convolutional encoder and sequential decoder with parallel architecture and block coding properties |
May. 7, 1991 |
| 5014275 |
Sequential decoder |
May. 7, 1991 |
| 4998253 |
Syndrome sequential decoder |
Mar. 5, 1991 |
| 4797887 |
Sequential decoding method and apparatus |
Jan. 10, 1989 |
| 4240156 |
Concatenated error correcting system |
Dec. 16, 1980 |
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