DE3604604C2 - - Google Patents

Info

Publication number
DE3604604C2
DE3604604C2 DE3604604A DE3604604A DE3604604C2 DE 3604604 C2 DE3604604 C2 DE 3604604C2 DE 3604604 A DE3604604 A DE 3604604A DE 3604604 A DE3604604 A DE 3604604A DE 3604604 C2 DE3604604 C2 DE 3604604C2
Authority
DE
Germany
Prior art keywords
signal
circuit
track
speed
detector
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
DE3604604A
Other languages
German (de)
English (en)
Other versions
DE3604604A1 (de
Inventor
Takeshi Kokubunji Jp Maeda
Kazuo Saitama Jp Shigematsu
Shigeru Hachioji Jp Nakamura
Yoshito Mitaka Jp Tsunoda
Masuo Hachioji Jp Kasai
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.)
Hitachi Ltd
Original Assignee
Hitachi 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
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of DE3604604A1 publication Critical patent/DE3604604A1/de
Application granted granted Critical
Publication of DE3604604C2 publication Critical patent/DE3604604C2/de
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in only
    • 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
    • G11B7/0901—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 for track following only

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
DE19863604604 1985-02-25 1986-02-14 Verfahren und vorrichtung zur einstellung eines spurnachfuehrungs-servokreises Granted DE3604604A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60034356A JP2644720B2 (ja) 1985-02-25 1985-02-25 トラック引込み方法

Publications (2)

Publication Number Publication Date
DE3604604A1 DE3604604A1 (de) 1986-09-04
DE3604604C2 true DE3604604C2 (en, 2012) 1991-01-17

Family

ID=12411878

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863604604 Granted DE3604604A1 (de) 1985-02-25 1986-02-14 Verfahren und vorrichtung zur einstellung eines spurnachfuehrungs-servokreises

Country Status (3)

Country Link
US (1) US4731771A (en, 2012)
JP (1) JP2644720B2 (en, 2012)
DE (1) DE3604604A1 (en, 2012)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH067413B2 (ja) * 1985-07-03 1994-01-26 株式会社リコー 光ピツクアツプのトラツキング制御方式
JP2569005B2 (ja) * 1986-03-31 1997-01-08 株式会社日立製作所 光ディスク装置および光ディスク
KR910003458B1 (ko) * 1986-12-02 1991-05-31 미쓰비시뎅끼 가부시끼가이샤 광디스크의 구동장치
US5285431A (en) * 1987-12-02 1994-02-08 Mitsubishi Denki Kabushiki Kaisha Information storage device with head position detection outside a user utilizable region and an optical disk drive device having target velocity-controlled head actuation
US5018124A (en) * 1987-03-31 1991-05-21 Canon Kabushiki Kaisha Information recording method and apparatus for recording information on track positioned at least two tracks ahead when abnormality of tracking servo is detected
JPH0748257B2 (ja) * 1987-05-07 1995-05-24 富士通株式会社 光ディスク装置のマルチトラックジャンプ回路
JPS643826A (en) * 1987-06-25 1989-01-09 Mitsubishi Electric Corp Optical disk device
JPH01105335A (ja) * 1987-07-31 1989-04-21 Sony Corp 光ディスク装置
US4839876A (en) * 1987-11-23 1989-06-13 International Business Machines Corporation Track seeking using a track following loop
JP2565265B2 (ja) * 1987-11-28 1996-12-18 ソニー株式会社 光情報処理装置
JPH0641958B2 (ja) * 1988-02-04 1994-06-01 ナカミチ株式会社 移動速度検出回路
US5396477A (en) * 1988-09-21 1995-03-07 Hitachi, Ltd. Light spot positioning method and optical disc memory apparatus employing the same
JPH02220278A (ja) * 1989-02-20 1990-09-03 Pioneer Electron Corp ディスク演奏装置におけるスライダー制御装置
JPH033120A (ja) * 1989-05-30 1991-01-09 Nikon Corp トラッキング装置
JP2721405B2 (ja) * 1989-09-28 1998-03-04 パイオニア株式会社 トラッキングサーボ装置
US5285432A (en) * 1989-10-31 1994-02-08 Kabushiki Kaisha Toshiba Track jump control circuit
JPH03235226A (ja) * 1990-02-13 1991-10-21 Marantz Japan Inc 光学式ピックアップレンズの振動ブレーキ回路
DE4102801A1 (de) * 1991-01-31 1992-08-06 Thomson Brandt Gmbh Spurregelkreis
US5257251A (en) * 1990-05-25 1993-10-26 International Business Machines Corporation Single loop servo-positioning systems having means for changing the dynamic range of a position-error signal with speed of the relatively movable members
JP2582951B2 (ja) * 1990-05-25 1997-02-19 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 可動部材の相対的速度で位置誤差信号のダイナミック・レンジを変更するための手段を有する単ループサーボ位置決めシステム
US5452276A (en) * 1991-01-31 1995-09-19 Deutsche Thomson-Brandt/Gmbh Tracking regulation circuit including apparatus for disabling coarse drive signals
JPH05234286A (ja) * 1991-12-26 1993-09-10 Internatl Business Mach Corp <Ibm> アクチュエータ制御装置及び方法
JP2723199B2 (ja) * 1992-06-03 1998-03-09 シャープ株式会社 光ディスクプレーヤのトラッキングサーボ引き込み回路装置
JPH0896379A (ja) * 1994-09-21 1996-04-12 Nec Corp 光ヘッドのトラッキング制御装置
JP3490622B2 (ja) * 1998-12-17 2004-01-26 富士通株式会社 トラッキング制御方法及び記憶装置
JP2007080402A (ja) * 2005-09-15 2007-03-29 Hitachi Ltd 光ディスク装置
JP5314884B2 (ja) * 2007-12-05 2013-10-16 日立コンシューマエレクトロニクス株式会社 光ディスクドライブ装置
JP5775768B2 (ja) * 2011-09-09 2015-09-09 日立コンシューマエレクトロニクス株式会社 光ディスク装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4096534A (en) * 1977-04-12 1978-06-20 International Business Machines Corporation Track accessing circuitry for a disk file with switchable filter
FR2396379A1 (fr) * 1977-07-01 1979-01-26 Thomson Brandt Lecteur optique de disque d'information muni d'un dispositif d'acces automatique aux informations
JPS6040093B2 (ja) * 1978-09-09 1985-09-09 パイオニアビデオ株式会社 トラッキングサ−ボ引込装置
NL7812111A (nl) * 1978-12-13 1980-06-17 Philips Nv Inrichting voor het optisch uitlezen van een schijf- vormige registratiedrager, in het bijzonder het snel opzoeken van een gewenst programmagedeelte.
JPS5862868A (ja) * 1981-10-09 1983-04-14 Pioneer Video Corp 情報再生装置における高速アドレス情報探索方式
US4627038A (en) * 1984-07-05 1986-12-02 Storage Technology Partners Ii Optical disk storage unit having a servo system with different velocity inputs

Also Published As

Publication number Publication date
DE3604604A1 (de) 1986-09-04
JPS61194645A (ja) 1986-08-29
JP2644720B2 (ja) 1997-08-25
US4731771A (en) 1988-03-15

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition