DE69621519D1 - Verfahren zur Maximalwahrscheinlichkeitsdekodierung und Gerät zur Wiedergabe von Digitalinformationen - Google Patents

Verfahren zur Maximalwahrscheinlichkeitsdekodierung und Gerät zur Wiedergabe von Digitalinformationen

Info

Publication number
DE69621519D1
DE69621519D1 DE69621519T DE69621519T DE69621519D1 DE 69621519 D1 DE69621519 D1 DE 69621519D1 DE 69621519 T DE69621519 T DE 69621519T DE 69621519 T DE69621519 T DE 69621519T DE 69621519 D1 DE69621519 D1 DE 69621519D1
Authority
DE
Germany
Prior art keywords
decoding method
digital information
maximum probability
reproducing digital
probability decoding
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 - Lifetime
Application number
DE69621519T
Other languages
English (en)
Other versions
DE69621519T2 (de
Inventor
Nakajima Takeshi
Shigeru Furumiya
Yoshinari Takemura
Kenji Koishi
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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
Priority claimed from JP15588195A external-priority patent/JP3331818B2/ja
Priority claimed from JP34478795A external-priority patent/JP3301691B2/ja
Priority claimed from JP10092596A external-priority patent/JP3674142B2/ja
Priority claimed from JP14696596A external-priority patent/JPH09330564A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69621519D1 publication Critical patent/DE69621519D1/de
Publication of DE69621519T2 publication Critical patent/DE69621519T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10055—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom
    • G11B20/10148—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom partial response PR(1,3,3,1)
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • 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
    • 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
    • H03M13/63—Joint error correction and other techniques
    • H03M13/6331—Error control coding in combination with equalisation
    • 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
    • H03M13/63—Joint error correction and other techniques
    • H03M13/6343—Error control coding in combination with techniques for partial response channels, e.g. recording

Landscapes

  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
DE69621519T 1995-06-22 1996-06-21 Verfahren zur Maximalwahrscheinlichkeitsdekodierung und Gerät zur Wiedergabe von Digitalinformationen Expired - Lifetime DE69621519T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP15588195A JP3331818B2 (ja) 1995-06-22 1995-06-22 ディジタル情報再生装置
JP34478795A JP3301691B2 (ja) 1995-12-05 1995-12-05 デジタル情報再生装置
JP10092596A JP3674142B2 (ja) 1996-04-23 1996-04-23 ディジタル情報再生装置および最尤復号装置
JP14696596A JPH09330564A (ja) 1996-06-10 1996-06-10 ディジタル情報再生装置

Publications (2)

Publication Number Publication Date
DE69621519D1 true DE69621519D1 (de) 2002-07-11
DE69621519T2 DE69621519T2 (de) 2003-07-03

Family

ID=27468880

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69621519T Expired - Lifetime DE69621519T2 (de) 1995-06-22 1996-06-21 Verfahren zur Maximalwahrscheinlichkeitsdekodierung und Gerät zur Wiedergabe von Digitalinformationen

Country Status (3)

Country Link
US (1) US5719843A (de)
EP (1) EP0750306B1 (de)
DE (1) DE69621519T2 (de)

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US5748593A (en) * 1995-06-02 1998-05-05 Nikon Corporation Data reproduction apparatus
JPH1027348A (ja) * 1996-07-09 1998-01-27 Pioneer Electron Corp 記録情報再生装置
EP0858659A1 (de) * 1996-09-02 1998-08-19 Koninklijke Philips Electronics N.V. Schnelles erfassungsverfahren zum erhalten von daten aus einem übertragungskanal und datenempfänger dafür
JP3553292B2 (ja) * 1996-09-30 2004-08-11 富士通株式会社 サーマルアスペリティ除去方法及び磁気ディスク装置
JP4103152B2 (ja) * 1997-04-18 2008-06-18 ソニー株式会社 情報再生装置および再生方法
KR100228798B1 (ko) * 1997-05-09 1999-11-01 윤종용 파형등화기의 대역폭 자동조절방법
JP3343201B2 (ja) * 1997-06-12 2002-11-11 株式会社日立製作所 復号回路および情報処理装置
GB2331833A (en) * 1997-11-29 1999-06-02 Daewoo Electronics Co Ltd Asynchronous data detection apparatus for use in a magnetic playback system
US6246723B1 (en) 1998-05-04 2001-06-12 Cirrus Logic, Inc. Sampled amplitude read channel employing early-decisions from a trellis sequence detector for sampling value estimation
US6363129B1 (en) * 1998-11-09 2002-03-26 Broadcom Corporation Timing recovery system for a multi-pair gigabit transceiver
US6807228B2 (en) 1998-11-13 2004-10-19 Broadcom Corporation Dynamic regulation of power consumption of a high-speed communication system
US6928106B1 (en) * 1998-08-28 2005-08-09 Broadcom Corporation Phy control module for a multi-pair gigabit transceiver
US6563889B1 (en) * 1998-10-01 2003-05-13 Lsi Logic Corporation Method and apparatus for adapting the boost of a read channel filter
JP2999759B1 (ja) * 1998-10-13 2000-01-17 松下電器産業株式会社 デジタル再生信号処理装置
US6459851B1 (en) * 1998-12-29 2002-10-01 Oak Technology, Inc. Apparatus for processing audio and video DVD data
WO2000042609A1 (fr) 1999-01-18 2000-07-20 Fujitsu Limited Procede et dispositif de commande de signal reproduit
US6275458B1 (en) * 1999-02-18 2001-08-14 Terrence L. Wong Method and apparatus for reading and writing a multi-level signal from an optical disc
AU4492100A (en) * 1999-04-22 2000-11-10 Broadcom Corporation Gigabit ethernet with timing offsets between the twisted pairs
US7187805B1 (en) * 1999-11-23 2007-03-06 Xerox Corporation Maximum likelihood estimation of JPEG quantization values
EP1107460A1 (de) * 1999-11-30 2001-06-13 Deutsche Thomson-Brandt Gmbh Verfahren und Vorrichtung zur Rückgewinnung von auf einem Aufzeichnungsmedium gespeicherten Daten mit Verwendung eines Viterbi-Detektors
EP1107461A1 (de) 1999-11-30 2001-06-13 Deutsche Thomson-Brandt Gmbh Verfahren und Vorrichtung zur Bestimmung des Wertes von durch Bitstromdaten empfangenen, in einem Speichermedium gespeicherten Proben sowie zur Rückgewinnung von Bits aus diesem Bitstrom unter Verwendung eines Viterbi-Detektors
AU1969901A (en) * 1999-12-30 2001-07-16 Calimetrics, Inc. Method and format for reading and writing in a multilevel optical data system
JP2002050134A (ja) * 2000-05-22 2002-02-15 Fujitsu Ltd データ再生装置
US6938172B2 (en) * 2001-03-21 2005-08-30 Tektronix, Inc. Data transformation for the reduction of power and noise in CMOS structures
JP3717806B2 (ja) * 2001-06-27 2005-11-16 三洋電機株式会社 光ディスク装置
JP3958084B2 (ja) * 2002-02-08 2007-08-15 キヤノン株式会社 光学的記録再生方法
JP2003257133A (ja) * 2002-02-28 2003-09-12 Canon Inc 情報再生装置
JP4081018B2 (ja) * 2002-03-11 2008-04-23 松下電器産業株式会社 信号処理装置および信号処理方法
US7127667B2 (en) * 2002-04-15 2006-10-24 Mediatek Inc. ACS circuit and viterbi decoder with the circuit
JP4006294B2 (ja) * 2002-08-07 2007-11-14 富士通株式会社 タイミングリカバリ方法及び記憶装置
US7623586B2 (en) 2002-10-23 2009-11-24 Panasonic Corporation Frequency and phase control apparatus and maximum likelihood decoder
US7212482B2 (en) * 2002-11-29 2007-05-01 International Business Machines Corporation Apparatus and method to dynamically adjust the amplitude of a signal comprising information
US20040130995A1 (en) * 2002-12-20 2004-07-08 Takeshi Nakajima Address reproduction circuit, optical disc drive and address reproduction method
JP3813931B2 (ja) * 2003-01-31 2006-08-23 株式会社東芝 情報再生装置及び情報再生方法
US7038869B2 (en) * 2003-04-14 2006-05-02 Matsushita Electric Industrial Co., Ltd. Recording control apparatus, recording and reproduction apparatus, and recording control method
JP2005222597A (ja) * 2004-02-05 2005-08-18 Sony Corp 再生装置及び再生方法
TWI285475B (en) * 2004-07-20 2007-08-11 Lite On It Corp Method for simplifying a Viterbi decoder
JP4754630B2 (ja) * 2006-06-02 2011-08-24 パナソニック株式会社 情報再生装置
US8023381B2 (en) * 2006-12-05 2011-09-20 Pioneer Corporation Information reproducing apparatus and method, and computer program
WO2008068855A1 (ja) * 2006-12-05 2008-06-12 Pioneer Corporation 情報再生装置及び方法、並びにコンピュータプログラム
JP4861435B2 (ja) * 2006-12-05 2012-01-25 パイオニア株式会社 情報再生装置及び方法、並びにコンピュータプログラム
JP4861433B2 (ja) * 2006-12-05 2012-01-25 パイオニア株式会社 情報再生装置及び方法、並びにコンピュータプログラム
JP4679640B2 (ja) * 2007-02-21 2011-04-27 パナソニック株式会社 最尤復号装置及び情報再生装置
US7821910B2 (en) * 2007-11-20 2010-10-26 Panasonic Corporation Optical disc, optical disc drive, optical disc recording/reproducing method, and integrated circuit
JP4384239B2 (ja) 2008-05-28 2009-12-16 株式会社東芝 光ディスク装置及び光ディスク再生方法
JP4645768B1 (ja) * 2009-11-02 2011-03-09 パナソニック株式会社 電子機器
WO2012147392A1 (ja) 2011-04-27 2012-11-01 三菱電機株式会社 信号処理装置、信号処理方法、及び光ディスク装置
JP7559776B2 (ja) * 2020-01-30 2024-10-02 ソニーグループ株式会社 信号処理装置、信号処理方法、及び、プログラム

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
US5095392A (en) * 1988-01-27 1992-03-10 Matsushita Electric Industrial Co., Ltd. Digital signal magnetic recording/reproducing apparatus using multi-level QAM modulation and maximum likelihood decoding
JPH03195129A (ja) * 1989-12-22 1991-08-26 Mitsubishi Electric Corp 最尤系列推定装置
US5400189A (en) * 1992-03-19 1995-03-21 Hitachi, Ltd. Magnetic recording and reproducing apparatus, reproduction signal processing apparatus, and reproduction signal processing method
JPH06243598A (ja) * 1993-02-22 1994-09-02 Sharp Corp 光ディスクのデータ検出方式
JP3224181B2 (ja) * 1993-11-09 2001-10-29 富士通株式会社 光ディスクからのデータ再生システム
US5384671A (en) * 1993-12-23 1995-01-24 Quantum Corporation PRML sampled data channel synchronous servo detector

Also Published As

Publication number Publication date
EP0750306A3 (de) 1997-12-17
EP0750306B1 (de) 2002-06-05
US5719843A (en) 1998-02-17
DE69621519T2 (de) 2003-07-03
EP0750306A2 (de) 1996-12-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP