ClassID:

222878

H03M13/4146 - 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 soft-output Viterbi algorithm based decoding, i.e. Viterbi decoding with weighted decisions soft-output Viterbi decoding according to Battail and Hagenauer in which the soft-output is determined using path metric differences along the maximum-likelihood path, i.e. "SOVA" decoding

Sub-classes:
Recent Application in this class:
#1
20260058845
2026-02-26

METHOD AND SYSTEM TO PERFORM CHANNEL ESTIMATION IN NARROWBAND NON-TERRESTRIAL NETWORKS USING DATA AIDING

#2
20250343561
2025-11-06

SOFT INFORMATION GENERATION FOR CONCATENATED FORWARD ERROR CORRECTION IN DIGIRAL SIGNAL PROCESSING

#3
20220286332
2022-09-08

Receiver and receive method for a passive optical network

#4
20210058098
2021-02-25

Iterative decoding circuit and decoding method

#5
20200065262
2020-02-27

Data path dynamic range optimization

#6
20200005819
2020-01-02

Multi-signal realignment for changing sampling clock

#7
20190058494
2019-02-21

Channel error rate optimization using Markov codes

#8
20180367164
2018-12-20

Approximated parameter adaptation

#9
20180366155
2018-12-20

Hybrid timing recovery

#10
20170004033
2017-01-05

Controller for a solid-state drive, and related solid-state

#11
20160352364
2016-12-01

MAX-LOG-MAP EQUIVALENCE LOG LIKELIHOOD RATIO GENERATION SOFT VITERBI ARCHITECTURE SYSTEM AND METHOD

#12
20150074498
2015-03-12

Apparatuses and methods for combining error coding and modulation schemes

#13
20140240863
2014-08-28

Max-Log-MAP equivalence log likelihood ratio generation soft Viterbi architecture system and method

#14
20140143641
2014-05-22

Iterative decoder systems and methods

#15
20130290817
2013-10-31

Method for correcting messages containing bit stuffing

#16
20130238952
2013-09-12

Apparatuses and methods for combining error coding and modulation schemes

#17
20130064332
2013-03-14

Method and apparatus for generating soft bit values in reduced-state equalizers

#18
20130016799
2013-01-17

Detection of radio signals in a receiver

#19
20120284588
2012-11-08

Architecture and control of reed-solomon error-correction decoding

#20
20120284585
2012-11-08

Systems and methods for queue based data detection and decoding

#21
20120159288
2012-06-21

Soft output Viterbi algorithm method and decoder

#22
20120137197
2012-05-31

Architecture and control of Reed-Solomon error-correction decoding

#23
20120047416
2012-02-23

Broadcasting receiver and broadcast signal processing method

#24
20110246859
2011-10-06

Methods and apparatus for computing soft data or log likelihood ratios for received values in communication or storage systems

#25
20110239085
2011-09-29

ECC with out of order completion

#26
20110197112
2011-08-11

Max-log-map equivalence log likelihood ratio generation soft viterbi architecture system and method

#27
20110167322
2011-07-07

Methods to improve ACS performance

#28
20110131475
2011-06-02

Method for determining a copy to be decoded and an associated erasures vector, corresponding storage means and receiver device

#29
20110119566
2011-05-19

Method and apparatus for evaluating performance of a read channel

#30
20110113304
2011-05-12

Method for decoding a succession of blocks encoded with an error correction code and correlated by a transmission channel

#31
20110078540
2011-03-31

Interlaced iterative system design for 1K-byte block with 512-byte LDPC codewords

#32
20110075287
2011-03-31

System and method for map detector for symbol based error correction codes

#33
20110029837
2011-02-03

Systems and methods for phase dependent data detection in iterative decoding

#34
20100332954
2010-12-30

Systems and methods for out of order Y-sample memory management

#35
20100325525
2010-12-23

Soft output viterbi decoder architecture

#36
20100275099
2010-10-28

Systems and methods for tri-column code based error reduction

#37
20100266071
2010-10-21

Method and apparatus for generating soft bit values in reduced-state equalizers

#38
20100235718
2010-09-16

Decoding techniques for correcting errors using soft information

#39
20100185924
2010-07-22

Method and apparatus for evaluating performance of a read channel

#40
20100070835
2010-03-18

Method and apparatus for error compensation

#41
20100070834
2010-03-18

Soft output viterbi detector with error event output

#42
20100058152
2010-03-04

DECODING APPARATUS AND METHOD

#43
20090327832
2009-12-31

DECODER AND RECORDING/REPRODUCING DEVICE

#44
20090292976
2009-11-26

Architecture and control of reed-solomon error identification and evaluation

#45
20090276689
2009-11-05

Using short burst error detector in a queue-based system

#46
20090273492
2009-11-05

Systems and methods for queue based data detection and decoding

#47
20090268575
2009-10-29

Systems and methods for reducing attenuation of information derived from a defective medium

#48
20090168926
2009-07-02

Methods, apparatus, and systems for determining 1T path equivalency information in an nT implementation of a viterbi decoder

#49
20090150746
2009-06-11

Iterative decoder systems and methods

#50
20090132897
2009-05-21

Reduced state soft output processing

#51
20090083608
2009-03-26

Architecture and control of reed-solomon error-correction decoding

#52
20090070658
2009-03-12

Defect sensing Viterbi based detector

#53
20090063940
2009-03-05

Register exchange network for radix-4 SOVA (Soft-Output Viterbi Algorithm)

#54
20090063939
2009-03-05

ACS (add compare select) implementation for radix-4 SOVA (soft-output viterbi algorithm)

#55
20090063937
2009-03-05

Architecture and control of Reed-Solomon error-correction decoding

#56
20090055717
2009-02-26

Architecture and control of Reed-Solomon list decoding

#57
20090044072
2009-02-12

Broadcasting receiver and broadcast signal processing method

#58
20090028253
2009-01-29

Tone-interleaved coded modulation scheme for MIMO OFDM communication

#59
20080267323
2008-10-30

Sliding block traceback decoding of block codes

#60
20080247493
2008-10-09

Methods, apparatus, and systems for determining 1T state metric differences in an nT implementation of a viterbi decoder

#61
20080168333
2008-07-10

Decoding method and decoding apparatus as well as program

#62
20080168330
2008-07-10

Systems and methods for prioritizing error correction data

#63
20080152045
2008-06-26

High-throughput memory-efficient BI-SOVA decoder architecture

#64
20080151704
2008-06-26

Readback apparatus and readback method

#65
20080123210
2008-05-29

Handling synchronization errors potentially experienced by a storage device

#66
20080115038
2008-05-15

Dynamic early termination of iterative decoding for turbo equalization

#67
20080115036
2008-05-15

Iterative read channel architectures with coded modulation

#68
20080104486
2008-05-01

Decoder and reproducing device

#69
20080065970
2008-03-13

Systems and methods for code dependency reduction

#70
20080065962
2008-03-13

Method and apparatus for error compensation

#71
20080052592
2008-02-28

Systems and methods for tri-column code based error reduction

#72
20070290908
2007-12-20

Signal decoder, a signal decoding method and a storage system

#73
20070220409
2007-09-20

Symbol-level soft output viterbi algorithm (SOVA) and a simplification on SOVA

#74
20070044006
2007-02-22

Decoding techniques for correcting errors using soft information

#75
20070008855
2007-01-11

Iterative stripewise trellis-based symbol detection method and device for multi-dimensional recording systems

#76
20070006058
2007-01-04

Path metric computation unit for use in a data detector

#77
20060282753
2006-12-14

Second stage SOVA detector

#78
20060248430
2006-11-02

Iterative concatenated convolutional Reed-Solomon decoding method

#79
20060227691
2006-10-12

Iterative stripwise trellis-based symbol detection method and device for multi-dimensional recording systems

#80
20060195772
2006-08-31

Method and apparatus for evaluating performance of a read channel

#81
20060168493
2006-07-27

Data detection and decoding system and method

#82
20060161834
2006-07-20

Error correction decoder

#83
20060150065
2006-07-06

Data detection and decoding system and a method of detecting and decoding data

#84
20060010188
2006-01-12

Method of and apparatus for implementing fast orthogonal transforms of variable size

#85
15154831
2017-12-05

Noise-predictive detector adaptation with corrected data