JP3900637B2 - ビタビ復号装置 - Google Patents

ビタビ復号装置 Download PDF

Info

Publication number
JP3900637B2
JP3900637B2 JP35143497A JP35143497A JP3900637B2 JP 3900637 B2 JP3900637 B2 JP 3900637B2 JP 35143497 A JP35143497 A JP 35143497A JP 35143497 A JP35143497 A JP 35143497A JP 3900637 B2 JP3900637 B2 JP 3900637B2
Authority
JP
Japan
Prior art keywords
output
register
state
terminated
path
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP35143497A
Other languages
English (en)
Japanese (ja)
Other versions
JPH11186919A5 (enExample
JPH11186919A (ja
Inventor
雅之 服部
俊之 宮内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP35143497A priority Critical patent/JP3900637B2/ja
Priority to MYPI98005661A priority patent/MY119831A/en
Priority to EP09001553A priority patent/EP2053750A1/en
Priority to US09/215,452 priority patent/US6748034B2/en
Priority to EP98124034A priority patent/EP0924863A3/en
Priority to KR1019980056323A priority patent/KR100538730B1/ko
Priority to CN98125339A priority patent/CN1220522A/zh
Publication of JPH11186919A publication Critical patent/JPH11186919A/ja
Publication of JPH11186919A5 publication Critical patent/JPH11186919A5/ja
Application granted granted Critical
Publication of JP3900637B2 publication Critical patent/JP3900637B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—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
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/23—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using convolutional codes, e.g. unit memory codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—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
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6577—Representation or format of variables, register sizes or word-lengths and quantization
    • H03M13/6583—Normalization other than scaling, e.g. by subtraction
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—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
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
    • H03M13/4107—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing add, compare, select [ACS] operations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—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
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
    • H03M13/4123—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing the return to a predetermined state
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—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
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
    • H03M13/4161—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing path management
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—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
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
    • H03M13/4161—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing path management
    • H03M13/4169—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing path management using traceback
    • H03M13/4176—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing path management using traceback using a plurality of RAMs, e.g. for carrying out a plurality of traceback implementations simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Correction Of Errors (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
JP35143497A 1997-12-19 1997-12-19 ビタビ復号装置 Expired - Fee Related JP3900637B2 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP35143497A JP3900637B2 (ja) 1997-12-19 1997-12-19 ビタビ復号装置
MYPI98005661A MY119831A (en) 1997-12-19 1998-12-15 Viterbi decoding apparatus and viterbi decoding method
US09/215,452 US6748034B2 (en) 1997-12-19 1998-12-17 Viterbi decoding apparatus and viterbi decoding method
EP98124034A EP0924863A3 (en) 1997-12-19 1998-12-17 Viterbi decoding apparatus and viterbi decoding method
EP09001553A EP2053750A1 (en) 1997-12-19 1998-12-17 Viterbi decoding apparatus and Viterbi decoding method
KR1019980056323A KR100538730B1 (ko) 1997-12-19 1998-12-18 비터비디코딩장치및비터비디코딩방법
CN98125339A CN1220522A (zh) 1997-12-19 1998-12-18 维特比译码装置及维特比译码方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35143497A JP3900637B2 (ja) 1997-12-19 1997-12-19 ビタビ復号装置

Publications (3)

Publication Number Publication Date
JPH11186919A JPH11186919A (ja) 1999-07-09
JPH11186919A5 JPH11186919A5 (enExample) 2005-03-17
JP3900637B2 true JP3900637B2 (ja) 2007-04-04

Family

ID=18417266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP35143497A Expired - Fee Related JP3900637B2 (ja) 1997-12-19 1997-12-19 ビタビ復号装置

Country Status (6)

Country Link
US (1) US6748034B2 (enExample)
EP (2) EP2053750A1 (enExample)
JP (1) JP3900637B2 (enExample)
KR (1) KR100538730B1 (enExample)
CN (1) CN1220522A (enExample)
MY (1) MY119831A (enExample)

Families Citing this family (159)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6654929B1 (en) 1999-10-01 2003-11-25 Matsushita Electric Industrial Co., Ltd. Viterbi decoder and Viterbi decoding method
US7225393B2 (en) 1999-10-01 2007-05-29 Matsushita Electric Industrial Co., Ltd. Viterbi decoder and Viterbi decoding method
JP3613134B2 (ja) * 2000-05-12 2005-01-26 日本電気株式会社 高速ターボデコーダ
JP3532884B2 (ja) * 2001-05-18 2004-05-31 松下電器産業株式会社 ビタビ復号器
AUPR679201A0 (en) * 2001-08-03 2001-08-30 Lucent Technologies Inc. Path metric normalization of add-compare-select processing
WO2005117272A1 (ja) * 2004-05-27 2005-12-08 Matsushita Electric Industrial Co., Ltd. ビタビ復号装置、およびビタビ復号方法
JP4840651B2 (ja) * 2006-07-27 2011-12-21 ソニー株式会社 復号装置および復号方法
US7801200B2 (en) * 2006-07-31 2010-09-21 Agere Systems Inc. Systems and methods for code dependency reduction
US7779331B2 (en) * 2006-07-31 2010-08-17 Agere Systems Inc. Systems and methods for tri-column code based error reduction
US7802163B2 (en) * 2006-07-31 2010-09-21 Agere Systems Inc. Systems and methods for code based error reduction
JP4666646B2 (ja) * 2006-08-24 2011-04-06 ルネサスエレクトロニクス株式会社 軟判定ビタビ復号装置および方法、復号装置および方法
US7673224B2 (en) * 2006-09-12 2010-03-02 Agere Systems Inc. Low power viterbi decoder using a novel register-exchange architecture
US7971125B2 (en) * 2007-01-08 2011-06-28 Agere Systems Inc. Systems and methods for prioritizing error correction data
US8359522B2 (en) 2007-05-01 2013-01-22 Texas A&M University System Low density parity check decoder for regular LDPC codes
US7930621B2 (en) * 2007-06-01 2011-04-19 Agere Systems Inc. Systems and methods for LDPC decoding with post processing
US8196002B2 (en) * 2007-06-01 2012-06-05 Agere Systems Inc. Systems and methods for joint LDPC encoding and decoding
US7876862B2 (en) 2007-07-16 2011-01-25 Agere Systems Inc. Conditionally input saturated Viterbi detector
US20100185914A1 (en) * 2007-09-28 2010-07-22 Weijun Tan Systems and Methods for Reduced Complexity Data Processing
US8161348B2 (en) * 2008-02-05 2012-04-17 Agere Systems Inc. Systems and methods for low cost LDPC decoding
US8245104B2 (en) * 2008-05-02 2012-08-14 Lsi Corporation Systems and methods for queue based data detection and decoding
WO2009142620A1 (en) * 2008-05-19 2009-11-26 Agere Systems Inc. Systems and methods for mitigating latency in a data detector feedback loop
US8660220B2 (en) * 2008-09-05 2014-02-25 Lsi Corporation Reduced frequency data processing using a matched filter set front end
US8245120B2 (en) * 2008-09-17 2012-08-14 Lsi Corporation Power reduced queue based data detection and decoding systems and methods for using such
JP2012509549A (ja) * 2008-11-20 2012-04-19 エルエスアイ コーポレーション 雑音低減型データ検出のシステムおよび方法
US7990642B2 (en) * 2009-04-17 2011-08-02 Lsi Corporation Systems and methods for storage channel testing
KR20120012960A (ko) 2009-04-28 2012-02-13 엘에스아이 코포레이션 판독된 데이터 처리 시스템의 동적 스케일링을 위한 시스템 및 방법
US8443267B2 (en) * 2009-04-28 2013-05-14 Lsi Corporation Systems and methods for hard decision assisted decoding
US8250434B2 (en) * 2009-06-18 2012-08-21 Lsi Corporation Systems and methods for codec usage control during storage pre-read
US8352841B2 (en) * 2009-06-24 2013-01-08 Lsi Corporation Systems and methods for out of order Y-sample memory management
US8312343B2 (en) * 2009-07-28 2012-11-13 Lsi Corporation Systems and methods for re-using decoding parity in a detector circuit
US8458553B2 (en) 2009-07-28 2013-06-04 Lsi Corporation Systems and methods for utilizing circulant parity in a data processing system
US8250431B2 (en) * 2009-07-30 2012-08-21 Lsi Corporation Systems and methods for phase dependent data detection in iterative decoding
US8321746B2 (en) 2009-07-30 2012-11-27 Lsi Corporation Systems and methods for quasi-cyclic LDPC code production and decoding
US8565811B2 (en) * 2009-08-04 2013-10-22 Microsoft Corporation Software-defined radio using multi-core processor
US8266505B2 (en) 2009-08-12 2012-09-11 Lsi Corporation Systems and methods for retimed virtual data processing
US8176404B2 (en) * 2009-09-09 2012-05-08 Lsi Corporation Systems and methods for stepped data retry in a storage system
US9753884B2 (en) * 2009-09-30 2017-09-05 Microsoft Technology Licensing, Llc Radio-control board for software-defined radio platform
US8627189B2 (en) * 2009-12-03 2014-01-07 Microsoft Corporation High performance digital signal processing in software radios
US20110136439A1 (en) * 2009-12-04 2011-06-09 Microsoft Corporation Analyzing Wireless Technologies Based On Software-Defined Radio
US8688873B2 (en) 2009-12-31 2014-04-01 Lsi Corporation Systems and methods for monitoring out of order data decoding
US8683306B2 (en) * 2010-01-04 2014-03-25 Lsi Corporation Systems and methods for data detection including dynamic scaling
US8578253B2 (en) 2010-01-04 2013-11-05 Lsi Corporation Systems and methods for updating detector parameters in a data processing circuit
US8743936B2 (en) * 2010-01-05 2014-06-03 Lsi Corporation Systems and methods for determining noise components in a signal set
US8161351B2 (en) 2010-03-30 2012-04-17 Lsi Corporation Systems and methods for efficient data storage
US9343082B2 (en) 2010-03-30 2016-05-17 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for detecting head contact
US8418019B2 (en) 2010-04-19 2013-04-09 Lsi Corporation Systems and methods for dynamic scaling in a data decoding system
US8527831B2 (en) 2010-04-26 2013-09-03 Lsi Corporation Systems and methods for low density parity check data decoding
US8443249B2 (en) 2010-04-26 2013-05-14 Lsi Corporation Systems and methods for low density parity check data encoding
US8381074B1 (en) 2010-05-21 2013-02-19 Lsi Corporation Systems and methods for utilizing a centralized queue based data processing circuit
US8381071B1 (en) 2010-05-21 2013-02-19 Lsi Corporation Systems and methods for decoder sharing between data sets
US8208213B2 (en) 2010-06-02 2012-06-26 Lsi Corporation Systems and methods for hybrid algorithm gain adaptation
US8681439B2 (en) 2010-09-13 2014-03-25 Lsi Corporation Systems and methods for handling sector gaps in inter-track interference compensation
US9219469B2 (en) 2010-09-21 2015-12-22 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for filter constraint estimation
US8295001B2 (en) 2010-09-21 2012-10-23 Lsi Corporation Systems and methods for low latency noise cancellation
US8443250B2 (en) 2010-10-11 2013-05-14 Lsi Corporation Systems and methods for error correction using irregular low density parity check codes
US8661071B2 (en) 2010-10-11 2014-02-25 Lsi Corporation Systems and methods for partially conditioned noise predictive equalization
US8560930B2 (en) 2010-10-11 2013-10-15 Lsi Corporation Systems and methods for multi-level quasi-cyclic low density parity check codes
US8385014B2 (en) 2010-10-11 2013-02-26 Lsi Corporation Systems and methods for identifying potential media failure
US8750447B2 (en) 2010-11-02 2014-06-10 Lsi Corporation Systems and methods for variable thresholding in a pattern detector
US8667039B2 (en) 2010-11-17 2014-03-04 Lsi Corporation Systems and methods for variance dependent normalization for branch metric calculation
US8566379B2 (en) 2010-11-17 2013-10-22 Lsi Corporation Systems and methods for self tuning target adaptation
US8810940B2 (en) 2011-02-07 2014-08-19 Lsi Corporation Systems and methods for off track error recovery
US8699167B2 (en) 2011-02-16 2014-04-15 Lsi Corporation Systems and methods for data detection using distance based tuning
US8446683B2 (en) 2011-02-22 2013-05-21 Lsi Corporation Systems and methods for data pre-coding calibration
US8854753B2 (en) 2011-03-17 2014-10-07 Lsi Corporation Systems and methods for auto scaling in a data processing system
US8693120B2 (en) 2011-03-17 2014-04-08 Lsi Corporation Systems and methods for sample averaging in data processing
US8670955B2 (en) 2011-04-15 2014-03-11 Lsi Corporation Systems and methods for reliability assisted noise predictive filtering
US8887034B2 (en) 2011-04-15 2014-11-11 Lsi Corporation Systems and methods for short media defect detection
US8611033B2 (en) 2011-04-15 2013-12-17 Lsi Corporation Systems and methods for selective decoder input data processing
KR101823188B1 (ko) 2011-05-04 2018-01-29 마이크로소프트 테크놀로지 라이센싱, 엘엘씨 기지국을 위한 스펙트럼 할당 기법
US8560929B2 (en) 2011-06-24 2013-10-15 Lsi Corporation Systems and methods for non-binary decoding
US8566665B2 (en) 2011-06-24 2013-10-22 Lsi Corporation Systems and methods for error correction using low density parity check codes using multiple layer check equations
US8499231B2 (en) 2011-06-24 2013-07-30 Lsi Corporation Systems and methods for reduced format non-binary decoding
US8862972B2 (en) 2011-06-29 2014-10-14 Lsi Corporation Low latency multi-detector noise cancellation
US8595576B2 (en) 2011-06-30 2013-11-26 Lsi Corporation Systems and methods for evaluating and debugging LDPC iterative decoders
US8650451B2 (en) 2011-06-30 2014-02-11 Lsi Corporation Stochastic stream decoding of binary LDPC codes
US8566666B2 (en) 2011-07-11 2013-10-22 Lsi Corporation Min-sum based non-binary LDPC decoder
US8830613B2 (en) 2011-07-19 2014-09-09 Lsi Corporation Storage media inter-track interference cancellation
US8879182B2 (en) 2011-07-19 2014-11-04 Lsi Corporation Storage media inter-track interference cancellation
US8819527B2 (en) 2011-07-19 2014-08-26 Lsi Corporation Systems and methods for mitigating stubborn errors in a data processing system
US8539328B2 (en) 2011-08-19 2013-09-17 Lsi Corporation Systems and methods for noise injection driven parameter selection
US8854754B2 (en) 2011-08-19 2014-10-07 Lsi Corporation Systems and methods for local iteration adjustment
US9026572B2 (en) 2011-08-29 2015-05-05 Lsi Corporation Systems and methods for anti-causal noise predictive filtering in a data channel
US8756478B2 (en) 2011-09-07 2014-06-17 Lsi Corporation Multi-level LDPC layer decoder
US8656249B2 (en) 2011-09-07 2014-02-18 Lsi Corporation Multi-level LDPC layer decoder
US8681441B2 (en) 2011-09-08 2014-03-25 Lsi Corporation Systems and methods for generating predictable degradation bias
US8661324B2 (en) 2011-09-08 2014-02-25 Lsi Corporation Systems and methods for non-binary decoding biasing control
US8850276B2 (en) 2011-09-22 2014-09-30 Lsi Corporation Systems and methods for efficient data shuffling in a data processing system
US8767333B2 (en) 2011-09-22 2014-07-01 Lsi Corporation Systems and methods for pattern dependent target adaptation
US8479086B2 (en) 2011-10-03 2013-07-02 Lsi Corporation Systems and methods for efficient parameter modification
US8689062B2 (en) 2011-10-03 2014-04-01 Lsi Corporation Systems and methods for parameter selection using reliability information
US8578241B2 (en) 2011-10-10 2013-11-05 Lsi Corporation Systems and methods for parity sharing data processing
US8862960B2 (en) 2011-10-10 2014-10-14 Lsi Corporation Systems and methods for parity shared data encoding
US8996597B2 (en) 2011-10-12 2015-03-31 Lsi Corporation Nyquist constrained digital finite impulse response filter
US8707144B2 (en) 2011-10-17 2014-04-22 Lsi Corporation LDPC decoder with targeted symbol flipping
US8443271B1 (en) 2011-10-28 2013-05-14 Lsi Corporation Systems and methods for dual process data decoding
US8604960B2 (en) 2011-10-28 2013-12-10 Lsi Corporation Oversampled data processing circuit with multiple detectors
US8527858B2 (en) 2011-10-28 2013-09-03 Lsi Corporation Systems and methods for selective decode algorithm modification
US8683309B2 (en) 2011-10-28 2014-03-25 Lsi Corporation Systems and methods for ambiguity based decode algorithm modification
US8989286B2 (en) 2011-11-10 2015-03-24 Microsoft Corporation Mapping a transmission stream in a virtual baseband to a physical baseband with equalization
US8700981B2 (en) 2011-11-14 2014-04-15 Lsi Corporation Low latency enumeration endec
US8760991B2 (en) 2011-11-14 2014-06-24 Lsi Corporation Systems and methods for post processing gain correction
US8531320B2 (en) 2011-11-14 2013-09-10 Lsi Corporation Systems and methods for memory efficient data decoding
US8751913B2 (en) 2011-11-14 2014-06-10 Lsi Corporation Systems and methods for reduced power multi-layer data decoding
US8719686B2 (en) 2011-11-22 2014-05-06 Lsi Corporation Probability-based multi-level LDPC decoder
US8631300B2 (en) 2011-12-12 2014-01-14 Lsi Corporation Systems and methods for scalable data processing shut down
US8625221B2 (en) 2011-12-15 2014-01-07 Lsi Corporation Detector pruning control system
US8819515B2 (en) 2011-12-30 2014-08-26 Lsi Corporation Mixed domain FFT-based non-binary LDPC decoder
US8707123B2 (en) 2011-12-30 2014-04-22 Lsi Corporation Variable barrel shifter
US8751889B2 (en) 2012-01-31 2014-06-10 Lsi Corporation Systems and methods for multi-pass alternate decoding
US8850295B2 (en) 2012-02-01 2014-09-30 Lsi Corporation Symbol flipping data processor
US8775896B2 (en) 2012-02-09 2014-07-08 Lsi Corporation Non-binary LDPC decoder with low latency scheduling
US8749907B2 (en) 2012-02-14 2014-06-10 Lsi Corporation Systems and methods for adaptive decoder message scaling
US8782486B2 (en) 2012-03-05 2014-07-15 Lsi Corporation Systems and methods for multi-matrix data processing
US8731115B2 (en) 2012-03-08 2014-05-20 Lsi Corporation Systems and methods for data processing including pre-equalizer noise suppression
US8610608B2 (en) 2012-03-08 2013-12-17 Lsi Corporation Systems and methods for reduced latency loop correction
US8873182B2 (en) 2012-03-09 2014-10-28 Lsi Corporation Multi-path data processing system
US8977937B2 (en) 2012-03-16 2015-03-10 Lsi Corporation Systems and methods for compression driven variable rate decoding in a data processing system
US9230596B2 (en) 2012-03-22 2016-01-05 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for variable rate coding in a data processing system
US9043684B2 (en) 2012-03-22 2015-05-26 Lsi Corporation Systems and methods for variable redundancy data protection
US8612826B2 (en) 2012-05-17 2013-12-17 Lsi Corporation Systems and methods for non-binary LDPC encoding
US8880986B2 (en) 2012-05-30 2014-11-04 Lsi Corporation Systems and methods for improved data detection processing
US8751915B2 (en) 2012-08-28 2014-06-10 Lsi Corporation Systems and methods for selectable positive feedback data processing
US9324372B2 (en) 2012-08-28 2016-04-26 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for local iteration randomization in a data decoder
US9019647B2 (en) 2012-08-28 2015-04-28 Lsi Corporation Systems and methods for conditional positive feedback data decoding
US8930780B2 (en) 2012-08-28 2015-01-06 Lsi Corporation Systems and methods for non-zero syndrome based processing
US8949702B2 (en) 2012-09-14 2015-02-03 Lsi Corporation Systems and methods for detector side trapping set mitigation
US9112531B2 (en) 2012-10-15 2015-08-18 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for enhanced local iteration randomization in a data decoder
US8634152B1 (en) 2012-10-15 2014-01-21 Lsi Corporation Systems and methods for throughput enhanced data detection in a data processing circuit
US9048870B2 (en) 2012-11-19 2015-06-02 Lsi Corporation Low density parity check decoder with flexible saturation
US9130589B2 (en) 2012-12-19 2015-09-08 Avago Technologies General Ip (Singapore) Pte. Ltd. Low density parity check decoder with dynamic scaling
US8929009B2 (en) 2012-12-19 2015-01-06 Lsi Corporation Irregular low density parity check decoder with low syndrome error handling
US8773791B1 (en) 2013-01-14 2014-07-08 Lsi Corporation Systems and methods for X-sample based noise cancellation
US9003263B2 (en) 2013-01-15 2015-04-07 Lsi Corporation Encoder and decoder generation by state-splitting of directed graph
US9009557B2 (en) 2013-01-21 2015-04-14 Lsi Corporation Systems and methods for reusing a layered decoder to yield a non-layered result
US8885276B2 (en) 2013-02-14 2014-11-11 Lsi Corporation Systems and methods for shared layer data decoding
US8930792B2 (en) 2013-02-14 2015-01-06 Lsi Corporation Systems and methods for distributed low density parity check decoding
US9214959B2 (en) 2013-02-19 2015-12-15 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for skip layer data decoding
US9048873B2 (en) 2013-03-13 2015-06-02 Lsi Corporation Systems and methods for multi-stage encoding of concatenated low density parity check codes
US8797668B1 (en) 2013-03-13 2014-08-05 Lsi Corporation Systems and methods for penalty based multi-variant encoding
US9048874B2 (en) 2013-03-15 2015-06-02 Lsi Corporation Min-sum based hybrid non-binary low density parity check decoder
US9281843B2 (en) 2013-03-22 2016-03-08 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for reduced constraint code data processing
US9048867B2 (en) 2013-05-21 2015-06-02 Lsi Corporation Shift register-based layered low density parity check decoder
US9274889B2 (en) 2013-05-29 2016-03-01 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for data processing using global iteration result reuse
US8959414B2 (en) 2013-06-13 2015-02-17 Lsi Corporation Systems and methods for hybrid layer data decoding
US8917466B1 (en) 2013-07-17 2014-12-23 Lsi Corporation Systems and methods for governing in-flight data sets in a data processing system
US8817404B1 (en) 2013-07-18 2014-08-26 Lsi Corporation Systems and methods for data processing control
US9196299B2 (en) 2013-08-23 2015-11-24 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for enhanced data encoding and decoding
US8908307B1 (en) 2013-08-23 2014-12-09 Lsi Corporation Systems and methods for hard disk drive region based data encoding
US9047882B2 (en) 2013-08-30 2015-06-02 Lsi Corporation Systems and methods for multi-level encoding and decoding
US9129651B2 (en) 2013-08-30 2015-09-08 Avago Technologies General Ip (Singapore) Pte. Ltd. Array-reader based magnetic recording systems with quadrature amplitude modulation
US9400797B2 (en) 2013-09-17 2016-07-26 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for recovered data stitching
CN104518801A (zh) 2013-09-29 2015-04-15 Lsi公司 非二进制的分层低密度奇偶校验解码器
US9219503B2 (en) 2013-10-16 2015-12-22 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for multi-algorithm concatenation encoding and decoding
US9323606B2 (en) 2013-11-21 2016-04-26 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for FAID follower decoding
US9130599B2 (en) 2013-12-24 2015-09-08 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods of converting detector output to multi-level soft information
RU2014104571A (ru) 2014-02-10 2015-08-20 ЭлЭсАй Корпорейшн Системы и способы для эффективного с точки зрения площади кодирования данных
US9378765B2 (en) 2014-04-03 2016-06-28 Seagate Technology Llc Systems and methods for differential message scaling in a decoding process
US9419656B2 (en) * 2014-07-29 2016-08-16 Intel IP Corporation Decoder and method for decoding an encoded sequence of bits

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US477636A (en) * 1892-06-28 blodgett
CA1260143A (en) * 1986-02-24 1989-09-26 Atsushi Yamashita Path trace viterbi decoder
GB2309867A (en) * 1996-01-30 1997-08-06 Sony Corp Reliability data in decoding apparatus
JPH09266448A (ja) * 1996-03-28 1997-10-07 Sony Corp ビタビ復号化装置およびビタビ復号化方法
US5878098A (en) * 1996-06-27 1999-03-02 Motorola, Inc. Method and apparatus for rate determination in a communication system
EP0837564B1 (en) * 1996-10-15 2003-02-19 Matsushita Electric Industrial Co., Ltd. Apparatus for performing a trace back operation in a Viterbi decoder
WO1998018209A1 (en) * 1996-10-24 1998-04-30 Sony Corporation Device and method for viterbi decoding

Also Published As

Publication number Publication date
US6748034B2 (en) 2004-06-08
CN1220522A (zh) 1999-06-23
EP2053750A1 (en) 2009-04-29
EP0924863A3 (en) 2004-06-09
KR100538730B1 (ko) 2006-02-28
KR19990063227A (ko) 1999-07-26
EP0924863A2 (en) 1999-06-23
JPH11186919A (ja) 1999-07-09
US20030108128A1 (en) 2003-06-12
MY119831A (en) 2005-07-29

Similar Documents

Publication Publication Date Title
JP3900637B2 (ja) ビタビ復号装置
JP3747604B2 (ja) ビタビ復号装置
EP0234558B1 (en) Path trace viterbi decoder
KR940010435B1 (ko) 비터비 복호기의 경로기억장치
JPS6356728B2 (enExample)
KR100285067B1 (ko) 비터비 디코더의 가산 비교 선택 회로
US5822341A (en) Multiport RAM for use within a viterbi decoder
JPH0316046B2 (enExample)
US6697442B1 (en) Viterbi decoding apparatus capable of shortening a decoding process time duration
KR100336246B1 (ko) 디지탈프로세서및코-프로세서를구비한집적회로
JP3259725B2 (ja) ビタビ復号装置
JP4047697B2 (ja) ビタビ復号装置
JP4422867B2 (ja) ビタビデコーダ
JPH05335973A (ja) ビタビ復号器及び畳み込み符号の復号器
JP2904271B2 (ja) ビタビ復号器用パスメモリユニットおよび復号方法
WO2001003308A1 (en) Viterbi decoder
KR100195004B1 (ko) 비트시리얼 비터비 디코더의 가산/비교/선택 어레이
KR100564757B1 (ko) 저전력 비터비 복호기 및 역추적 방법
KR100324066B1 (ko) 비터비 복호기
JP4082158B2 (ja) ビタビ復号方法、ビタビ復号装置及びプログラム
JP2001186025A (ja) ビタビ復号装置
JPH0361374B2 (enExample)
Manzoor et al. VLSI implementation of an efficient pre-trace back approach for Viterbi algorithm
JP2004120791A (ja) ビタビ復号器
JPH07202725A (ja) ビタビ復号器

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20040412

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20040412

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20060623

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060704

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060831

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060926

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20061115

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20061212

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20061225

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100112

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110112

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120112

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130112

Year of fee payment: 6

LAPS Cancellation because of no payment of annual fees