HK138294A - Method and apparatus for decoding the output signal of a partial-response communication or recording-device channel - Google Patents

Method and apparatus for decoding the output signal of a partial-response communication or recording-device channel

Info

Publication number
HK138294A
HK138294A HK138294A HK138294A HK138294A HK 138294 A HK138294 A HK 138294A HK 138294 A HK138294 A HK 138294A HK 138294 A HK138294 A HK 138294A HK 138294 A HK138294 A HK 138294A
Authority
HK
Hong Kong
Prior art keywords
decoding
recording
partial
output signal
device channel
Prior art date
Application number
HK138294A
Other languages
English (en)
Inventor
Francois Bernard Dollvo
Gottfried Ungerboeck
Thomas David Howell
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of HK138294A publication Critical patent/HK138294A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03184—Details concerning the metric
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03356—Baseband transmission
    • H04L2025/03369—Partial response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03203—Trellis search techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Error Detection And Correction (AREA)
  • Dc Digital Transmission (AREA)
HK138294A 1983-08-05 1994-12-08 Method and apparatus for decoding the output signal of a partial-response communication or recording-device channel HK138294A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/520,666 US4571734A (en) 1983-08-05 1983-08-05 Method and apparatus for decoding the output signal of a partial-response class-IV communication or recording-device channel
SG150594A SG150594G (en) 1983-08-05 1994-10-17 Method and apparatus for decoding the output signal of a partial-response communication or recording-device channel

Publications (1)

Publication Number Publication Date
HK138294A true HK138294A (en) 1994-12-16

Family

ID=26664433

Family Applications (1)

Application Number Title Priority Date Filing Date
HK138294A HK138294A (en) 1983-08-05 1994-12-08 Method and apparatus for decoding the output signal of a partial-response communication or recording-device channel

Country Status (5)

Country Link
US (1) US4571734A (fr)
EP (1) EP0133480B1 (fr)
JP (1) JPH0634483B2 (fr)
HK (1) HK138294A (fr)
SG (1) SG150594G (fr)

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US5430744A (en) * 1993-09-30 1995-07-04 International Business Machines Corporation Method and means for detecting partial response waveforms using a modified dynamic programming heuristic
US6302576B1 (en) 1993-11-29 2001-10-16 Oki Electric Industry Co., Ltd. Soft decision estimation unit and maximum-likelihood sequence estimation unit
US5916315A (en) * 1994-08-23 1999-06-29 Ampex Systems Corporation Viterbi detector for class II partial response equalized miller-squared signals
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US5734680A (en) * 1995-08-09 1998-03-31 Hewlett-Packard Co. Analog implementation of a partial response maximum likelihood (PRML) read channel
JP3157838B2 (ja) * 1995-09-18 2001-04-16 インターナショナル・ビジネス・マシーンズ・コーポレーション ノイズ予測最尤（ｎｐｍｌ）検出方法及びそれに基づく装置
US6023492A (en) * 1995-11-24 2000-02-08 Telefonaktiebolaget Lm Ericsson Method and apparatus for conditionally combining bit metrics in a communication system
KR100212836B1 (ko) * 1996-06-14 1999-08-02 전주범 비터비 디코더의 트레이스백 진행 구조
DE19781889T1 (de) * 1996-07-22 1999-07-01 Seagate Technology Kompensation der Datenerfassung im asymmetrischen Kanal
US5949820A (en) * 1996-08-01 1999-09-07 Nec Electronics Inc. Method for optimizing an equalization and receive filter
US5808573A (en) * 1996-08-01 1998-09-15 Nec Electronics Incorporated Methods and structure for sampled-data timing recovery with reduced complexity and latency
US5905743A (en) * 1996-12-31 1999-05-18 Ericsson Inc. Apparatus, methods and computer program products for sequential maximum likelihood estimating communications signals using whitening path metrics
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US5938790A (en) * 1997-03-04 1999-08-17 Silicon Systems Research Ltd. Sequence error event detection and correction using fixed block digital sum codes
DE19882604T1 (de) 1997-08-11 2000-08-10 Seagate Technology Statischer Viterbi-Detektor für Kanäle, die einen Code mit zeitveränderlichen Constraints verwenden
JP2001519583A (ja) 1997-10-08 2001-10-23 シーゲイト テクノロジー エルエルシー 判定帰還を用いる磁気記録におけるデータの検出方法および装置
US6493162B1 (en) 1997-12-05 2002-12-10 Seagate Technology Llc Frame synchronization for viterbi detector
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US6289060B1 (en) * 2000-05-12 2001-09-11 Motorola, Inc. Method and apparatus for performing a generalized viterbi search to demodulate a sequence of symbols
JP4324316B2 (ja) * 2000-10-23 2009-09-02 株式会社日立グローバルストレージテクノロジーズ 垂直磁気記録再生装置
US7127665B2 (en) * 2001-10-03 2006-10-24 Sony Corporation Trellis code detector and decoder
FR2833167B1 (fr) * 2001-12-07 2004-05-21 Oreal Compositions cosmetiques antisolaires a base d'un melange synergique de filtres et utilisations
JP2004039130A (ja) * 2002-07-04 2004-02-05 Sony Corp 最尤復号方法及び最尤復号装置
WO2004032398A1 (fr) * 2002-09-30 2004-04-15 Seagate Technology Llc Egalisation iterative et decodage iteratif d'un signal code selon les codes de reed-muller
TWI390506B (zh) * 2009-05-20 2013-03-21 Novatek Microelectronics Corp 資料復原之校正電路與方法
US8566381B2 (en) * 2010-08-05 2013-10-22 Lsi Corporation Systems and methods for sequence detection in data processing

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US30182A (en) * 1860-09-25 Stove-gkate
US3508153A (en) * 1967-09-11 1970-04-21 Bell Telephone Labor Inc Automatic equalizer for partial-response data transmission systems
USRE30182E (en) 1969-06-24 1979-12-25 Bell Telephone Laboratories, Incorporated Precoded ternary data transmission
US3792356A (en) * 1971-12-27 1974-02-12 Ibm Receiver structure for equalization of partial-response coded data
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US4087752A (en) * 1977-04-25 1978-05-02 Rockwell International Corporation Digital communications tree searching detection
US4472813A (en) * 1981-03-30 1984-09-18 Nippon Electric Co., Ltd. Transmission system for intentionally violating a class IV partial response code to distinguish subsidiary signals from an error
US4504872A (en) * 1983-02-08 1985-03-12 Ampex Corporation Digital maximum likelihood detector for class IV partial response

Also Published As

Publication number Publication date
SG150594G (en) 1995-03-17
US4571734A (en) 1986-02-18
EP0133480B1 (fr) 1992-01-08
EP0133480A3 (en) 1988-03-16
EP0133480A2 (fr) 1985-02-27
JPH0634483B2 (ja) 1994-05-02
JPS6047538A (ja) 1985-03-14

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Legal Events

Date Code Title Description
PE Patent expired

Effective date: 20040710

PE Patent expired