DE69624616D1 - Servokreis zur Spurverfolgung - Google Patents

Servokreis zur Spurverfolgung

Info

Publication number
DE69624616D1
DE69624616D1 DE69624616T DE69624616T DE69624616D1 DE 69624616 D1 DE69624616 D1 DE 69624616D1 DE 69624616 T DE69624616 T DE 69624616T DE 69624616 T DE69624616 T DE 69624616T DE 69624616 D1 DE69624616 D1 DE 69624616D1
Authority
DE
Germany
Prior art keywords
tracking
servo circuit
servo
circuit
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
DE69624616T
Other languages
English (en)
Other versions
DE69624616T2 (de
Inventor
Hidenobu Noda
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69624616D1 publication Critical patent/DE69624616D1/de
Publication of DE69624616T2 publication Critical patent/DE69624616T2/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
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • 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
    • G11B7/094—Methods and circuits for servo offset compensation
    • 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
    • G11B7/0948—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 detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
    • 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
    • G11B7/0903—Multi-beam tracking systems
DE69624616T 1995-04-28 1996-04-25 Servokreis zur Spurverfolgung Expired - Fee Related DE69624616T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7106496A JPH08306054A (ja) 1995-04-28 1995-04-28 トラッキングサーボ回路

Publications (2)

Publication Number Publication Date
DE69624616D1 true DE69624616D1 (de) 2002-12-12
DE69624616T2 DE69624616T2 (de) 2003-07-03

Family

ID=14435054

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69624616T Expired - Fee Related DE69624616T2 (de) 1995-04-28 1996-04-25 Servokreis zur Spurverfolgung

Country Status (8)

Country Link
US (1) US5703849A (de)
EP (1) EP0740293B1 (de)
JP (1) JPH08306054A (de)
KR (1) KR100423919B1 (de)
CN (1) CN1082221C (de)
DE (1) DE69624616T2 (de)
MY (1) MY112967A (de)
TW (1) TW373170B (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3550836B2 (ja) * 1995-10-19 2004-08-04 ソニー株式会社 光学装置におけるトラッキングサーボ装置及びトラッキングサーボ方法
JPH1091983A (ja) * 1996-09-12 1998-04-10 Sony Corp 光学式ディスク装置およびトラッキングエラー信号算出回路
EP0936602B1 (de) * 1998-02-13 2006-09-20 Yamaha Corporation Aufzeichnungstechnik für optische Platten zur Bildung von genau spurzentrierten Pits und Servoabgleicheinstellungstechnik zur Aufzeichnung auf optischen Platten
US6618334B1 (en) 1999-11-04 2003-09-09 Sanyo Electric Co., Ltd. Optical disk recording/reproducing device employing waveform correction of laser output signal
CN100433148C (zh) * 2002-12-13 2008-11-12 松下电器产业株式会社 光盘装置
US7218582B2 (en) * 2002-12-13 2007-05-15 Matsushita Electric Industrial Co., Ltd. Optical disc drive
JP2005135460A (ja) * 2003-10-28 2005-05-26 Toshiba Corp 光ディスク装置
US7830757B2 (en) * 2007-03-27 2010-11-09 Philips & Lite-On Digital Solutions Corporation Tracking control method for reading/writing optical disk
JP4806393B2 (ja) * 2007-12-14 2011-11-02 オンセミコンダクター・トレーディング・リミテッド 駆動信号生成回路

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0679378B2 (ja) * 1986-12-15 1994-10-05 ソニー株式会社 光学式記録再生装置のトラツキングサ−ボ回路
JPH0821214B2 (ja) * 1987-02-27 1996-03-04 パイオニア株式会社 デイスク再生方式
JP2695446B2 (ja) * 1988-08-31 1997-12-24 キヤノン株式会社 光学的情報記録再生装置
JP2742443B2 (ja) * 1989-04-27 1998-04-22 オリンパス光学工業株式会社 トラッキングサーボループのループゲイン調整装置
JPH0335432A (ja) * 1989-06-30 1991-02-15 Nippon Columbia Co Ltd フォーカスサーボ回路
JP2985248B2 (ja) * 1990-07-17 1999-11-29 ソニー株式会社 スピンドルサーボ装置
JPH04337526A (ja) * 1991-05-14 1992-11-25 Nippon Columbia Co Ltd フォーカスサーボ回路
JPH05144019A (ja) * 1991-11-15 1993-06-11 Taiyo Yuden Co Ltd コンパクトデイスク装置のスレツド暴走防止回路
JPH06162544A (ja) * 1992-11-13 1994-06-10 Sony Corp トラッキングサーボ回路
KR100230238B1 (ko) * 1994-07-30 1999-11-15 윤종용 광 디스크의 포커싱 서보 장치

Also Published As

Publication number Publication date
EP0740293A3 (de) 1998-02-11
DE69624616T2 (de) 2003-07-03
TW373170B (en) 1999-11-01
CN1082221C (zh) 2002-04-03
US5703849A (en) 1997-12-30
KR100423919B1 (ko) 2004-12-30
JPH08306054A (ja) 1996-11-22
EP0740293A2 (de) 1996-10-30
CN1147127A (zh) 1997-04-09
KR960038849A (ko) 1996-11-21
MY112967A (en) 2001-10-31
EP0740293B1 (de) 2002-11-06

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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