H03M13/4161 - CPC Classification Index

ClassID:

222880 ⎘

H03M13/4161 - CPC Classification

Classification description:

Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes; Decoding methods or techniques, not specific to the particular type of coding provided for in groups - ; Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing path management

Sub-classes:

H03M13/4169 » {using traceback } 115
H03M13/4184 » {using register-exchange } 21
H03M13/4192 » {using combined traceback and register-exchange} 17

Recent Application in this class:

20210399747

2021-12-23

Method for polar decoding with dynamic successive cancellation list size and polar decoder

20210391875

2021-12-16

Decoding circuit and decoding method based on Viterbi algorithm

20170294924

2017-10-12

Decoding path selection device and method

20170033807

2017-02-02

Method and apparatus for reducing false decoding

20160241274

2016-08-18

Multi mode viterbi decoder

20130136215

2013-05-30

Channel decoding method and tail biting convolutional decoder

20120272118

2012-10-25

Variable modulation with LDPC (low density parity check) coding

20120192041

2012-07-26

Pre-decoded tail-biting convolutional code decoder and decoding method thereof

20120170678

2012-07-05

Methods and apparatus for trellis-based modulation encoding

#10

20120042228

2012-02-16

Bitwise reliability indicators from survivor bits in Viterbi decoders

#11

20120036173

2012-02-09

Systems and methods for sequence detection in data processing

#12

20110307767

2011-12-15

Method and apparatus for signal-to-noise ratio estimation in convolutional codes (Viterbi) decoder

#13

20110258518

2011-10-20

Variable modulation with LDPC (low density parity check) coding

#14

20110072336

2011-03-24

LDPC (low density parity check) coded modulation symbol decoding

#15

20100313103

2010-12-09

Receiver equipped with a trellis viterbi decoder

#16

20100269026

2010-10-21

Error pattern generation for trellis-based detection and/or decoding

#17

20100077282

2010-03-25

True bit level decoding of TTCM (turbo trellis coded modulation) of variable rates and signal constellations

#18

20090172504

2009-07-02

MEMORY ARCHITECTURE FOR VITERBI DECODER AND OPERATING METHOD THEREFOR

#19

20090172503

2009-07-02

Decoding apparatus and decoding method using an additional add-compare-select operation on decoded data in the event of an error in the decoded data

#20

20090052293

2009-02-26

Bit detection for multitrack digital data storage

#21

20080212952

2008-09-04

Copy Protection for Video Content Contained in the VOB File Structure

#22

20080065961

2008-03-13

LDPC (low density parity check) coded modulation symbol decoding

#23

20070165453

2007-07-19

Reconfigurable bit-manipulation node

#24

20070162833

2007-07-12

Reconfigurable bit-manipulation node

#25

20070162818

2007-07-12

Bandwidth efficient coded modulation scheme based on MLC (multi-level code) signals having multiple maps

#26

20070124644

2007-05-31

Iterative metric updating when decoding LDPC (low density parity check) coded signals and LDPC coded modulation signals

#27

20070079225

2007-04-05

Trace-ahead method and apparatus for determining survivor paths in a Viterbi detector

#28

20070044000

2007-02-22

Variable modulation with LDPC (low density parity check) coding

#29

20070016841

2007-01-18

Variable code rate and signal constellation turbo trellis coded modulation codec

#30

20060277449

2006-12-07

Decoding apparatus, decoding method, program-recording medium, program and recording/reproduction apparatus

#31

20060209995

2006-09-21

Viterbi decoder

#32

20060176968

2006-08-10

Adaptive Viterbi decoder for a wireless data network receiver

#33

20060165391

2006-07-27

Copy protection for video content contained in the VOB file structure

#34

20060098728

2006-05-11

Decision feedback equalizer for digital TV and method thereof

#35

20060090121

2006-04-27

Trellis-based receiver

#36

20060048037

2006-03-02

Method of and apparatus for implementing a reconfigurable trellis-type decoding

#37

20060036819

2006-02-16

Interleaver for iterative decoder

#38

20060029145

2006-02-09

Method and apparatus for encoding interleaving and mapping data to facilitate GBPS data rates in wireless systems

#39

20050149843

2005-07-07

Bandwidth efficient coded modulation scheme based on MLC (multi-level code) signals having multiple maps

#40

20050114748

2005-05-26

Variable modulation with LDPC (low density parity check) coding