FR2724753B1 - Dispositif de commande de pistage de tete optique - Google Patents

Dispositif de commande de pistage de tete optique

Info

Publication number
FR2724753B1
FR2724753B1 FR9511039A FR9511039A FR2724753B1 FR 2724753 B1 FR2724753 B1 FR 2724753B1 FR 9511039 A FR9511039 A FR 9511039A FR 9511039 A FR9511039 A FR 9511039A FR 2724753 B1 FR2724753 B1 FR 2724753B1
Authority
FR
France
Prior art keywords
control device
optical head
tracking control
head tracking
optical
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
FR9511039A
Other languages
English (en)
Other versions
FR2724753A1 (fr
Inventor
Hajime Kobayashi
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Publication of FR2724753A1 publication Critical patent/FR2724753A1/fr
Application granted granted Critical
Publication of FR2724753B1 publication Critical patent/FR2724753B1/fr
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
    • 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
    • G11B7/085—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
    • G11B7/09—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
FR9511039A 1994-09-21 1995-09-20 Dispositif de commande de pistage de tete optique Expired - Fee Related FR2724753B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6226400A JPH0896379A (ja) 1994-09-21 1994-09-21 光ヘッドのトラッキング制御装置

Publications (2)

Publication Number Publication Date
FR2724753A1 FR2724753A1 (fr) 1996-03-22
FR2724753B1 true FR2724753B1 (fr) 1998-12-31

Family

ID=16844537

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9511039A Expired - Fee Related FR2724753B1 (fr) 1994-09-21 1995-09-20 Dispositif de commande de pistage de tete optique

Country Status (4)

Country Link
US (1) US5646916A (fr)
JP (1) JPH0896379A (fr)
FR (1) FR2724753B1 (fr)
NL (1) NL1001239C2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2978833B2 (ja) 1997-05-07 1999-11-15 群馬日本電気株式会社 光ディスクの回転数設定方法および装置
KR100288781B1 (ko) * 1997-11-27 2001-05-02 구자홍 광픽업의 이동거리 결정장치 및 결정방법
MY125349A (en) 1999-05-03 2006-07-31 Toshiba Samsung Storage Tech Korea Corporation Automatic tilt compensator and optical recording/reproducing apparatus having the same
DE10064050A1 (de) * 2000-12-21 2002-07-04 Thomson Brandt Gmbh Verfahren zu Positionssteuerung bei optischen Datenträgern mit Adressinformationen
US7668071B2 (en) * 2004-01-30 2010-02-23 Victor Company Of Japan, Ltd. Phase-change optical recording medium having tracking signal smaller than saturation value
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

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
NL8403534A (nl) * 1984-11-21 1986-06-16 Philips Nv Inrichting voor het uitlezen van een schijfvormige registratiedrager.
JP2644720B2 (ja) * 1985-02-25 1997-08-25 株式会社日立製作所 トラック引込み方法
JP2663616B2 (ja) * 1989-03-07 1997-10-15 松下電器産業株式会社 トラック検索装置
JPH03160626A (ja) * 1989-11-17 1991-07-10 Ricoh Co Ltd トラッキング引込み装置
JPH0775078B2 (ja) * 1989-11-29 1995-08-09 ティアツク株式会社 光ディスク装置
KR930003191B1 (ko) * 1991-01-25 1993-04-23 삼성전자 주식회사 콤팩트 디스크 플레이어의 트래킹 안정장치
JPH04254919A (ja) * 1991-02-07 1992-09-10 Hitachi Ltd トラッキング制御方法及び装置
JPH0668486A (ja) * 1991-06-07 1994-03-11 Fuji Xerox Co Ltd 光スポットの相対位置及び速度検出装置
JP2710704B2 (ja) * 1991-07-08 1998-02-10 シャープ株式会社 光記録媒体駆動装置

Also Published As

Publication number Publication date
US5646916A (en) 1997-07-08
NL1001239A1 (nl) 1996-03-21
FR2724753A1 (fr) 1996-03-22
NL1001239C2 (nl) 1998-03-11
JPH0896379A (ja) 1996-04-12

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20110531