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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:
| Patent Number |
Title Of Patent |
Date Issued |
| 7620879 |
Method of detecting occurrence of error event in data and apparatus for the same |
Nov. 17, 2009 |
| 7620882 |
Decoder and decoding method for decoding a code by selecting a path out of paths in a trellis diagram |
Nov. 17, 2009 |
| 7620877 |
Signal decoding methods and apparatus |
Nov. 17, 2009 |
| 7616699 |
Method of soft bit metric calculation with direct matrix inversion MIMO detection |
Nov. 10, 2009 |
| 7617435 |
Hard-decision iteration decoding based on an error-correcting code with a low undetectable error probability |
Nov. 10, 2009 |
| 7617440 |
Viterbi traceback initial state index initialization for partial cascade processing |
Nov. 10, 2009 |
| 7613246 |
VSB transmission system |
Nov. 3, 2009 |
| 7609777 |
Maximum likelihood a posteriori probability detector |
Oct. 27, 2009 |
| 7607072 |
Method and apparatus for-soft-output viterbi detection using a multiple-step trellis |
Oct. 20, 2009 |
| 7603613 |
Viterbi decoder architecture for use in software-defined radio systems |
Oct. 13, 2009 |
| 7593488 |
Method and apparatus for detection of signal without the aid of training sequence |
Sep. 22, 2009 |
| 7590928 |
Apparatus and method for Viterbi decoding |
Sep. 15, 2009 |
| 7586931 |
Wireless terminal turbo decoding module supporting packet splitting and decoding |
Sep. 8, 2009 |
| 7587660 |
Multiple-access code generation |
Sep. 8, 2009 |
| 7568147 |
Iterative decoder employing multiple external code error checks to lower the error floor |
Jul. 28, 2009 |
| 7564905 |
System and method for providing terrestrial digital broadcasting service using single frequency network |
Jul. 21, 2009 |
| 7564930 |
Method and apparatus for implementing a traceback processor for trellis decoding in a Viterbi decoder |
Jul. 21, 2009 |
| 7555052 |
Method and system for a turbo trellis coded modulation scheme for communication systems |
Jun. 30, 2009 |
| 7532638 |
Wireless terminal baseband processor high speed turbo decoding module supporting MAC header splitting |
May. 12, 2009 |
| 7530010 |
Hybrid trace back apparatus and high-speed viterbi decoding system using the same |
May. 5, 2009 |
| 7526047 |
Method for encoding a message into geometrically uniform space-time trellis codes |
Apr. 28, 2009 |
| 7522679 |
System and method for adapting to a change in constellation density while receiving a signal |
Apr. 21, 2009 |
| 7519897 |
Decoding apparatus and decoding method |
Apr. 14, 2009 |
| 7515601 |
Turbo decoding module supporting state n metric value normalization operations |
Apr. 7, 2009 |
| 7502983 |
Binary error-correction coding method and decoding method for trellis with permuted and sequential symbols |
Mar. 10, 2009 |
| 7496827 |
System and method for multi-mode multi-state path metric addressing |
Feb. 24, 2009 |
| 7489621 |
Adaptive puncturing technique for multicarrier systems |
Feb. 10, 2009 |
| 7487432 |
Method and apparatus for multiple step Viterbi detection with local feedback |
Feb. 3, 2009 |
| 7480851 |
Robust error correction encoding/decoding apparatus and method of digital dual-stream broadcast reception/transmission system |
Jan. 20, 2009 |
| 7469018 |
Apparatus, and associated method, for forming a signal exhibiting space-time redundancy |
Dec. 23, 2008 |
| 7467347 |
Method for decoding error correcting code, its program and its device |
Dec. 16, 2008 |
| 7467359 |
Decoder using a memory for storing state metrics implementing a decoder trellis |
Dec. 16, 2008 |
| 7464324 |
Method and apparatus for forward error correction coding for an AM in-band on-channel digital audio broadcasting system |
Dec. 9, 2008 |
| 7440523 |
Apparatus and method for decode arbitration in a multi-stream multimedia system |
Oct. 21, 2008 |
| 7436895 |
Concatenated space-time coding |
Oct. 14, 2008 |
| 7437657 |
High speed add-compare-select processing |
Oct. 14, 2008 |
| 7423996 |
Method and apparatus for weighted non-binary repeat accumulate coding and space-time coding |
Sep. 9, 2008 |
| 7421032 |
Serial concatenation of interleaved convolutional codes forming turbo-like codes |
Sep. 2, 2008 |
| 7418052 |
Iterative turbo decision feedback receiver |
Aug. 26, 2008 |
| 7415075 |
Multi-rate encoding and decoding system |
Aug. 19, 2008 |
| 7406650 |
Variable code rate and signal constellation turbo trellis coded modulation codec |
Jul. 29, 2008 |
| 7404132 |
ARQ method with adaptive transmittal data block positions |
Jul. 22, 2008 |
| 7400688 |
Path metric normalization |
Jul. 15, 2008 |
| 7389470 |
Concatenated equalizer/trellis decoder architecture for an HDTV receiver |
Jun. 17, 2008 |
| 7380199 |
Method and apparatus for precomputation and pipelined selection of branch metrics in a reduced-state Viterbi detector |
May. 27, 2008 |
| 7372916 |
Process and devices for transmitting digital signals over buses and computer program product therefore |
May. 13, 2008 |
| 7370266 |
Digital signal decoding device and digital signal decoding method |
May. 6, 2008 |
| 7370265 |
Bandwidth efficient coded modulation scheme based on MLC (multi-level code) signals having multiple maps |
May. 6, 2008 |
| 7370261 |
Convolution-encoded raid with trellis-decode-rebuild |
May. 6, 2008 |
| 7356087 |
Bit mapping for variable-size higher-order digital modulations |
Apr. 8, 2008 |
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