DE69132484D1 - Informations-Aufzeichnungs-/Wiedergabegerät - Google Patents

Informations-Aufzeichnungs-/Wiedergabegerät

Info

Publication number
DE69132484D1
DE69132484D1 DE69132484T DE69132484T DE69132484D1 DE 69132484 D1 DE69132484 D1 DE 69132484D1 DE 69132484 T DE69132484 T DE 69132484T DE 69132484 T DE69132484 T DE 69132484T DE 69132484 D1 DE69132484 D1 DE 69132484D1
Authority
DE
Germany
Prior art keywords
information recording
playback device
playback
recording
information
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
DE69132484T
Other languages
English (en)
Other versions
DE69132484T2 (de
Inventor
Ogino Tsukasa
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.)
Canon Inc
Original Assignee
Canon Inc
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 JP3974990A external-priority patent/JP2857451B2/ja
Priority claimed from JP2041120A external-priority patent/JP2579019B2/ja
Priority claimed from JP5488190A external-priority patent/JPH03257510A/ja
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of DE69132484D1 publication Critical patent/DE69132484D1/de
Publication of DE69132484T2 publication Critical patent/DE69132484T2/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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G11B5/553—Details
    • G11B5/5547—"Seek" control and circuits therefor
    • 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
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08529—Methods and circuits to control the velocity of the head as it traverses the tracks
DE69132484T 1990-02-22 1991-02-21 Informations-Aufzeichnungs-/Wiedergabegerät Expired - Fee Related DE69132484T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3974990A JP2857451B2 (ja) 1990-02-22 1990-02-22 ディジタルサーボ装置
JP2041120A JP2579019B2 (ja) 1990-02-23 1990-02-23 情報記録または再生装置
JP5488190A JPH03257510A (ja) 1990-03-08 1990-03-08 ディジタルサーボ装置

Publications (2)

Publication Number Publication Date
DE69132484D1 true DE69132484D1 (de) 2001-01-11
DE69132484T2 DE69132484T2 (de) 2001-05-10

Family

ID=27290259

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69132484T Expired - Fee Related DE69132484T2 (de) 1990-02-22 1991-02-21 Informations-Aufzeichnungs-/Wiedergabegerät

Country Status (3)

Country Link
US (1) US5475663A (de)
EP (1) EP0443847B1 (de)
DE (1) DE69132484T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6115205A (en) * 1994-03-11 2000-09-05 Seagate Technology, Inc. Method for adapting seeks of a disc drive transducer to the maximum actuator current available to accelerate and decelerate the transducer
US5677609A (en) * 1994-07-28 1997-10-14 National Semiconductor Corporation Intelligent servomechanism controller
EP0701252A1 (de) * 1994-08-22 1996-03-13 Canon Kabushiki Kaisha Informationsaufzeichnungs-/Wiedergabegerät
TW363182B (en) * 1995-02-09 1999-07-01 Hitachi Ltd Positioning apparatus for optical disks
US6507451B1 (en) 1996-05-09 2003-01-14 Nec Corporation Seek control method and system using stored velocity-vs-position data
EP0811970A3 (de) * 1996-06-04 1998-11-18 Canon Kabushiki Kaisha Optisches Informationsgerät und Verfahren zur dessen Verwendung
JP3484039B2 (ja) * 1997-03-14 2004-01-06 株式会社東芝 ディスク装置
EP0969453A1 (de) 1998-07-03 2000-01-05 Deutsche Thomson-Brandt GmbH Schnelle und genaue Positionierung eines optischen Lese- und/oder Schreibkopfes in einem Datenwiedergabe- und/oder -aufzeichnungsgerät
TW464846B (en) * 2000-02-01 2001-11-21 Via Tech Inc Method and device to resolve the turn back problem of the seeking control of optical disk driver
US7522480B2 (en) 2001-01-25 2009-04-21 Dphi Acquisitions, Inc. Digital tracking servo system with multi-track seek with an acceleration clamp
TW594694B (en) 2002-09-13 2004-06-21 Mediatek Inc Method for counting number of tracks of an optical disc in an optical disc system
JP4972309B2 (ja) * 2005-11-28 2012-07-11 株式会社日立製作所 光ディスク記録・再生装置及びそのシーク制御方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58199471A (ja) * 1982-05-17 1983-11-19 Toshiba Corp 磁気ディスク装置の磁気ヘッド速度制御装置
US4486797A (en) * 1982-11-22 1984-12-04 International Business Machines Corporation Sliding mask variable resolution velocity trajectory for track following servo
US4719610A (en) * 1986-04-02 1988-01-12 Optotech, Inc. Objective lens velocity control system for use in an optical data storage system
US4677507A (en) * 1986-05-30 1987-06-30 Magnetic Peripherals Inc. Digital velocity control for a disk drive servo system
JPH0641958B2 (ja) * 1988-02-04 1994-06-01 ナカミチ株式会社 移動速度検出回路
US4920462A (en) * 1988-03-07 1990-04-24 Syquest Technology Disc drive fine servo velocity control and method for head positioning relative to a disc
US5146440A (en) * 1988-08-29 1992-09-08 Matsushita Electric Industrial Co., Ltd. Track search apparatus
JPH0279223A (ja) * 1988-09-16 1990-03-19 Hitachi Ltd 光学式記録再生装置
DE69028954T2 (de) * 1989-07-18 1997-03-06 Canon Kk Optisches Informationsaufzeichnungs- und -wiedergabegerät

Also Published As

Publication number Publication date
DE69132484T2 (de) 2001-05-10
US5475663A (en) 1995-12-12
EP0443847A2 (de) 1991-08-28
EP0443847B1 (de) 2000-12-06
EP0443847A3 (en) 1992-03-18

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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