DE69221097D1 - System zur adaptiven Steuerung eines Plattenantriebsstellgliedes - Google Patents

System zur adaptiven Steuerung eines Plattenantriebsstellgliedes

Info

Publication number
DE69221097D1
DE69221097D1 DE69221097T DE69221097T DE69221097D1 DE 69221097 D1 DE69221097 D1 DE 69221097D1 DE 69221097 T DE69221097 T DE 69221097T DE 69221097 T DE69221097 T DE 69221097T DE 69221097 D1 DE69221097 D1 DE 69221097D1
Authority
DE
Germany
Prior art keywords
disk drive
adaptive control
drive actuator
actuator
adaptive
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
DE69221097T
Other languages
English (en)
Other versions
DE69221097T2 (de
Inventor
Ted W Barnes
Richard B Wells
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.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Application granted granted Critical
Publication of DE69221097D1 publication Critical patent/DE69221097D1/de
Publication of DE69221097T2 publication Critical patent/DE69221097T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/08—Track changing or selecting during transducing operation
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs
    • G11B21/085—Access to indexed tracks or parts of continuous track on discs with track following of accessed part
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0953—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks
DE69221097T 1991-12-18 1992-12-18 System zur adaptiven Steuerung eines Plattenantriebsstellgliedes Expired - Fee Related DE69221097T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/812,231 US5257252A (en) 1991-12-18 1991-12-18 Adaptive control system for a disk drive actuator

Publications (2)

Publication Number Publication Date
DE69221097D1 true DE69221097D1 (de) 1997-08-28
DE69221097T2 DE69221097T2 (de) 1997-11-13

Family

ID=25208937

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69221097T Expired - Fee Related DE69221097T2 (de) 1991-12-18 1992-12-18 System zur adaptiven Steuerung eines Plattenantriebsstellgliedes

Country Status (4)

Country Link
US (1) US5257252A (de)
EP (1) EP0547630B1 (de)
JP (1) JP3193491B2 (de)
DE (1) DE69221097T2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3248220B2 (ja) * 1992-03-18 2002-01-21 株式会社日立製作所 ディスク装置及びその制御方法
JPH0668498A (ja) * 1992-08-24 1994-03-11 Toshiba Corp 情報記録媒体処理装置
US5377096A (en) * 1992-12-16 1994-12-27 International Business Machines Corporation Digital actuator controller using low-pass filter
US5739974A (en) * 1993-03-09 1998-04-14 Hewlett-Packard Company System for calibrating a magnetic tape drive
US5608586A (en) * 1994-10-21 1997-03-04 International Business Machines Corporation Robust servo for disk-shift compensation in rotating storage system
JP2980545B2 (ja) * 1995-09-25 1999-11-22 インターナショナル・ビジネス・マシーンズ・コーポレイション デイスク装置およびデイスク装置におけるヘッド位置制御方法
US6243225B1 (en) 1998-10-23 2001-06-05 Storage Technology Corporation Adaptive filter for redundant sensor sampled magnetic tape drive control system
US6307694B1 (en) * 1999-02-24 2001-10-23 Cirrus Logic, Inc. Error signal biasing for an adaptive filter in a disk drive read channel
US6549492B1 (en) * 1999-06-30 2003-04-15 Oak Technology, Inc. Method and apparatus for run-out correction in a disk drive
US6415238B1 (en) * 1999-07-16 2002-07-02 International Business Machines Corporation Adaptive compensation for arm electronics amplification circuitry of a disk drive system
JP2002100137A (ja) * 2000-09-21 2002-04-05 Toshiba Corp ディスク装置及びサーボ制御方法
US7136257B2 (en) * 2003-05-16 2006-11-14 Seagate Technology Llc Apparatus and method for maintaining stability in a disc drive servo loop
US7319570B2 (en) 2005-09-19 2008-01-15 Seagate Technology Llc Random vibration and shock compensator using a disturbance observer
US7466254B2 (en) * 2006-02-03 2008-12-16 L&L Engineering Llc Systems and methods for digital control utilizing oversampling
CN104369564B (zh) 2013-08-13 2019-06-11 罗门哈斯公司 具有改善的初始对比度的热记录材料

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037252A (en) * 1973-11-10 1977-07-19 U.S. Philips Corporation Apparatus for reading a disc-shaped record carrier with plural scanning spots for stable radial tracking
US3881184A (en) * 1974-05-28 1975-04-29 Ibm Adaptive digital servo system
JPS54136361A (en) * 1978-04-14 1979-10-23 Hitachi Ltd Controlling method of oscillating base
JPS58189842A (ja) * 1982-04-30 1983-11-05 Toshiba Corp 光学式デジタルデイスクプレ−ヤ装置
US4536809A (en) * 1982-05-10 1985-08-20 Digital Equipment Corporation Adaptive misposition correcting method and apparatus for magnetic disk servo system
US4745588A (en) * 1985-04-16 1988-05-17 Olympus Optical Co., Ltd. Tracking control apparatus
EP0246830B1 (de) * 1986-05-20 1992-08-05 Canon Kabushiki Kaisha Optisches Informations-Aufzeichnungs- und Wiedergabegerät
JPH03263620A (ja) * 1990-03-13 1991-11-25 Pioneer Electron Corp ディスクプレーヤのサーボ装置

Also Published As

Publication number Publication date
EP0547630B1 (de) 1997-07-23
US5257252A (en) 1993-10-26
JPH05258491A (ja) 1993-10-08
JP3193491B2 (ja) 2001-07-30
DE69221097T2 (de) 1997-11-13
EP0547630A3 (en) 1994-09-07
EP0547630A2 (de) 1993-06-23

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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: HEWLETT-PACKARD CO. (N.D.GES.D.STAATES DELAWARE),

8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE

8339 Ceased/non-payment of the annual fee