DE3852395D1 - Adaptiver Entzerrer für Aufzeichnungssysteme unter Verwendung von Partial-Response-Signalisierung. - Google Patents

Adaptiver Entzerrer für Aufzeichnungssysteme unter Verwendung von Partial-Response-Signalisierung.

Info

Publication number
DE3852395D1
DE3852395D1 DE3852395T DE3852395T DE3852395D1 DE 3852395 D1 DE3852395 D1 DE 3852395D1 DE 3852395 T DE3852395 T DE 3852395T DE 3852395 T DE3852395 T DE 3852395T DE 3852395 D1 DE3852395 D1 DE 3852395D1
Authority
DE
Germany
Prior art keywords
partial response
adaptive equalizer
recording systems
response signaling
signaling
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
DE3852395T
Other languages
English (en)
Other versions
DE3852395T2 (de
Inventor
Francois B Dr Dolivo
Sedat Dr Oelcer
Andreas Dr Ruengeler
Wolfgang Hans Dr Schott
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE3852395D1 publication Critical patent/DE3852395D1/de
Publication of DE3852395T2 publication Critical patent/DE3852395T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/027—Analogue recording
    • G11B5/035—Equalising

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Dc Digital Transmission (AREA)
DE3852395T 1988-10-17 1988-10-17 Adaptiver Entzerrer für Aufzeichnungssysteme unter Verwendung von Partial-Response-Signalisierung. Expired - Fee Related DE3852395T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88810705A EP0363551B1 (de) 1988-10-17 1988-10-17 Adaptiver Entzerrer für Aufzeichnungssysteme unter Verwendung von Partial-Response-Signalisierung

Publications (2)

Publication Number Publication Date
DE3852395D1 true DE3852395D1 (de) 1995-01-19
DE3852395T2 DE3852395T2 (de) 1995-05-24

Family

ID=8200611

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3852395T Expired - Fee Related DE3852395T2 (de) 1988-10-17 1988-10-17 Adaptiver Entzerrer für Aufzeichnungssysteme unter Verwendung von Partial-Response-Signalisierung.

Country Status (4)

Country Link
US (1) US5060088A (de)
EP (1) EP0363551B1 (de)
JP (1) JPH0777336B2 (de)
DE (1) DE3852395T2 (de)

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EP0363551B1 (de) 1988-10-17 1994-12-07 International Business Machines Corporation Adaptiver Entzerrer für Aufzeichnungssysteme unter Verwendung von Partial-Response-Signalisierung
US5416651A (en) * 1990-10-31 1995-05-16 Sony Corporation Apparatus for magnetically recording digital data
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US5321559A (en) * 1992-08-27 1994-06-14 Quantum Corporation Asynchronous peak detection of information embedded within PRML class IV sampling data detection channel
SG46216A1 (en) * 1992-08-27 1998-02-20 Quantum Corp Disk drive using prml class iv sampling data detection with digital adaptive equalization
US5341249A (en) * 1992-08-27 1994-08-23 Quantum Corporation Disk drive using PRML class IV sampling data detection with digital adaptive equalization
US5268848A (en) * 1992-09-30 1993-12-07 International Business Machines Corporation Equalizer adjustment for partial-response maximum-likelihood disk drive systems
DE69321066T2 (de) * 1992-10-14 1999-03-18 Sony Corp Magnetplattengerät
US5307375A (en) * 1992-11-19 1994-04-26 General Instrument Corporation Two stage accumulator for use in updating coefficients
JP2888398B2 (ja) * 1992-12-10 1999-05-10 株式会社日立製作所 ディジタル情報再生装置
US5424881A (en) 1993-02-01 1995-06-13 Cirrus Logic, Inc. Synchronous read channel
JP3212415B2 (ja) * 1993-04-26 2001-09-25 株式会社リコー 光記録装置の制御方法
US5426537A (en) * 1993-06-30 1995-06-20 Ampex Corporation Method and apparatus for automatically adjusting the overshoot of a record head in response to the record head gap depth
US5761212A (en) * 1993-07-01 1998-06-02 Cirrus Logic, Inc. Channel quality
US5530601A (en) * 1993-09-30 1996-06-25 International Business Machines Corporation Tracking threshold circuit for peak detection
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US6002538A (en) * 1994-03-18 1999-12-14 Fujitsu, Ltd. PRML regenerating apparatus having adjusted slice levels
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US5467370A (en) * 1994-03-24 1995-11-14 Silicon Systems, Inc. Method and apparatus for an adaptive three tap transversal equalizer for partial-response signaling
US5426541A (en) * 1994-03-31 1995-06-20 International Business Machines Corporation Self-equalization method for partial-response maximum-likelihood disk drive systems
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JP3351163B2 (ja) * 1994-07-27 2002-11-25 株式会社日立製作所 情報記録再生装置及び信号処理回路
US5592340A (en) * 1994-09-21 1997-01-07 Seagate Technology, Inc. Communication channel with adaptive analog transversal equalizer
US5682125A (en) * 1994-09-21 1997-10-28 Seagate Technology, Inc. Adaptive analog transversal equalizer
KR100300954B1 (ko) * 1994-09-27 2001-10-22 윤종용 고정각속도방식의디스크재생장치의적응형등화기
JP3513228B2 (ja) * 1994-09-29 2004-03-31 富士通株式会社 磁気ディスク装置及び読取波形等化方法
US5987634A (en) * 1994-11-17 1999-11-16 Cirrus Logic, Inc. Channel quality circuit in a sampled amplitude read channel
JPH08194906A (ja) * 1995-01-20 1996-07-30 Fujitsu Ltd ディスク装置
JPH08212736A (ja) * 1995-02-02 1996-08-20 Toshiba Corp 磁気ディスク装置におけるサーボ信号検出装置及びサーボ信号検出方法
JP3456781B2 (ja) * 1995-02-06 2003-10-14 富士通株式会社 磁気記録再生装置の復調回路
JP3483064B2 (ja) * 1995-04-20 2004-01-06 富士通株式会社 再生装置
EP0758784A3 (de) * 1995-08-16 1998-06-03 Nikon Corporation Informationswiedergabegerät
US5650954A (en) * 1996-01-30 1997-07-22 Seagate Technology, Inc. Frequency and time domain adaptive filtration in a sampled communication channel
KR100403042B1 (ko) * 1996-04-29 2004-01-24 삼성전자주식회사 적응등화기를이용하는자기디스크구동장치에서트래이닝시퀸스를줄이기위한디스크기록매체및그방법
US6819514B1 (en) 1996-04-30 2004-11-16 Cirrus Logic, Inc. Adaptive equalization and interpolated timing recovery in a sampled amplitude read channel for magnetic recording
US5999355A (en) 1996-04-30 1999-12-07 Cirrus Logic, Inc. Gain and phase constrained adaptive equalizing filter in a sampled amplitude read channel for magnetic recording
KR100366698B1 (ko) * 1996-06-07 2003-03-10 삼성전자 주식회사 데이타 저장기기의 신호검출방법 및 장치
US5892632A (en) * 1996-11-18 1999-04-06 Cirrus Logic, Inc. Sampled amplitude read channel employing a residue number system FIR filter in an adaptive equalizer and in interpolated timing recovery
US5872664A (en) * 1996-12-06 1999-02-16 Phase Metrics, Inc. Distortion of an isolated pulse
KR100403809B1 (ko) * 1997-02-17 2003-12-18 삼성전자주식회사 하드 디스크 드라이브의 서보 제어 시스템
US5966415A (en) * 1997-06-13 1999-10-12 Cirrus Logic, Inc. Adaptive equalization in a sub-sampled read channel for a disk storage system
US6298362B1 (en) * 1997-10-22 2001-10-02 Texas Instruments Incorporated Apparatus and method for equalizer filter units responsive to 5-level inputs signals
US6049574A (en) * 1998-04-17 2000-04-11 Trustees Of Tufts College Blind adaptive equalization using cost function that measures dissimilarity between the probability distributions of source and equalized signals
US6563889B1 (en) * 1998-10-01 2003-05-13 Lsi Logic Corporation Method and apparatus for adapting the boost of a read channel filter
US6912258B2 (en) 2000-07-07 2005-06-28 Koninklijke Philips Electtronics N.V. Frequency-domain equalizer for terrestrial digital TV reception
JP2005174419A (ja) * 2003-12-09 2005-06-30 Canon Inc 光学的情報記録再生装置及び光学的情報記録再生方法
EP1575176A1 (de) * 2004-03-09 2005-09-14 Deutsche Thomson-Brandt Gmbh Anordnung für adaptive Bit-Wiedergewinnung
US7193802B2 (en) * 2004-03-25 2007-03-20 Hitachi Global Storage Technologies Netherlands, B.V. Apparatus for providing dynamic equalizer optimization
KR100922856B1 (ko) * 2007-12-12 2009-10-22 한국전자통신연구원 고집적 고속 파이프라인 ｒｌｓ 추정 장치 및 방법
US7948703B1 (en) * 2008-01-30 2011-05-24 Marvell International Ltd. Adaptive target optimization methods and systems for noise whitening based viterbi detectors
US8077764B2 (en) * 2009-01-27 2011-12-13 International Business Machines Corporation 16-state adaptive noise predictive maximum-likelihood detection system
US8625226B2 (en) * 2011-11-23 2014-01-07 International Business Machines Corporation Fixing tap coefficients in a programmable finite-impulse-response equalizer

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DE2013555C3 (de) * 1970-03-20 1974-08-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Adaptiver Entzerrer zur Entzerrung mehrstufiger PAM-Datensignale
US3676804A (en) * 1971-02-22 1972-07-11 Bell Telephone Labor Inc Initialization of adaptive control systems
US3829780A (en) * 1972-11-14 1974-08-13 Rockwell International Corp Data modem with adaptive feedback equalization for cancellation of lead-in and trailing transients
GB1444822A (en) * 1973-01-05 1976-08-04 Siemens Ag Distortion correcting devices for partial response signals
US4041418A (en) * 1973-01-05 1977-08-09 Siemens Aktiengesellschaft Equalizer for partial response signals
IT1024828B (it) * 1974-11-15 1978-07-20 Oselt Centro Studi E Lab Telec Equalizzatore numerico per trasmissione di dati
US3949206A (en) * 1974-12-17 1976-04-06 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Filtering device
US4475211A (en) * 1982-09-13 1984-10-02 Communications Satellite Corporation Digitally controlled transversal equalizer
US4580176A (en) * 1983-11-21 1986-04-01 International Business Machines Corporation Adaptive equalization circuit for magnetic recording channels utilizing signal timing
US4564869A (en) * 1983-11-21 1986-01-14 Eastman Kodak Company Zoned equalization for a magnetic disc
JPS60124113A (ja) * 1983-12-08 1985-07-03 Matsushita Electric Ind Co Ltd 波形等化器
IT1188626B (it) * 1986-03-25 1988-01-20 Gte Telecom Spa Metodo e dispositivo di equalizzazione adattiva cieca
EP0363551B1 (de) 1988-10-17 1994-12-07 International Business Machines Corporation Adaptiver Entzerrer für Aufzeichnungssysteme unter Verwendung von Partial-Response-Signalisierung

Also Published As

Publication number Publication date
JPH0777336B2 (ja) 1995-08-16
EP0363551A1 (de) 1990-04-18
DE3852395T2 (de) 1995-05-24
EP0363551B1 (de) 1994-12-07
JPH02150114A (ja) 1990-06-08
US5060088A (en) 1991-10-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee