DE69026347D1 - Spurfolgegerät - Google Patents

Spurfolgegerät

Info

Publication number
DE69026347D1
DE69026347D1 DE69026347T DE69026347T DE69026347D1 DE 69026347 D1 DE69026347 D1 DE 69026347D1 DE 69026347 T DE69026347 T DE 69026347T DE 69026347 T DE69026347 T DE 69026347T DE 69026347 D1 DE69026347 D1 DE 69026347D1
Authority
DE
Germany
Prior art keywords
tracking device
tracking
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
DE69026347T
Other languages
English (en)
Other versions
DE69026347T2 (de
Inventor
Yasuaki Edahiro
Katsuya Watanabe
Mitsuro Moriya
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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
Priority claimed from JP1305419A external-priority patent/JP2661294B2/ja
Priority claimed from JP2101960A external-priority patent/JPH041937A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69026347D1 publication Critical patent/DE69026347D1/de
Application granted granted Critical
Publication of DE69026347T2 publication Critical patent/DE69026347T2/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
    • 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
    • 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
    • G11B7/0956—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 tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
    • 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
DE69026347T 1989-11-24 1990-11-20 Spurfolgegerät Expired - Fee Related DE69026347T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1305419A JP2661294B2 (ja) 1989-11-24 1989-11-24 トラッキング制御装置
JP2101960A JPH041937A (ja) 1990-04-18 1990-04-18 トラッキング制御装置

Publications (2)

Publication Number Publication Date
DE69026347D1 true DE69026347D1 (de) 1996-05-09
DE69026347T2 DE69026347T2 (de) 1996-11-07

Family

ID=26442725

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69026347T Expired - Fee Related DE69026347T2 (de) 1989-11-24 1990-11-20 Spurfolgegerät

Country Status (4)

Country Link
US (1) US5253239A (de)
EP (1) EP0430541B1 (de)
KR (1) KR940010946B1 (de)
DE (1) DE69026347T2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5434838A (en) * 1991-12-05 1995-07-18 Fuji Photo Film Co., Ltd. Data recording apparatus and method with verification of optical disc
JP3092756B2 (ja) * 1992-07-24 2000-09-25 ソニー株式会社 光デイスク装置
US5424538A (en) * 1993-02-10 1995-06-13 Fuji Xerox Co., Ltd. Scanning optical system having first and second knife edge detectors and first and second rise time detection circuits
KR950007129U (ko) * 1993-08-17 1995-03-21 틸트 센서 출력에 의한 리프트 제어장치
JPH0778428A (ja) * 1993-09-07 1995-03-20 Toshiba Corp ディスク装置のアクセス方向検知回路
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
JP3846925B2 (ja) * 1995-12-22 2006-11-15 パイオニア株式会社 トラッキングエラー信号の波形制御装置
JPH10302285A (ja) * 1997-04-23 1998-11-13 Pioneer Electron Corp サーチ方法
JP3882969B2 (ja) * 1998-03-18 2007-02-21 パイオニア株式会社 ティルト検出装置
US6577568B1 (en) * 1999-03-30 2003-06-10 Matsushita Electric Industrial Co., Ltd. Optical disk apparatus using tilt and aberration correction control system
JP2000339727A (ja) * 1999-05-18 2000-12-08 Lg Electronics Inc 光記録媒体の記録再生方法
FR2801149B1 (fr) * 1999-10-28 2002-02-01 St Microelectronics Sa Dispositif electronique de calcul du dephasage mutuel de deux signaux incidents echantillonnes
KR20030027437A (ko) * 2001-09-28 2003-04-07 넥스필전자 주식회사 광디스크 휨 량 검출장치
US7098845B2 (en) * 2004-05-18 2006-08-29 M/A-Com, Inc. Apparatus for generating an integrator timing reference from a local oscillator signal

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59116972A (ja) * 1982-12-23 1984-07-06 Olympus Optical Co Ltd 光学式記録再生装置用トラッキング装置の異常状態処理装置
JPS6010425A (ja) * 1983-06-30 1985-01-19 Toshiba Corp 光学ヘツド
US4833664A (en) * 1985-01-31 1989-05-23 Matsushita Electric Industrial Co., Ltd. Servo system for scanning the same track circumference of a spiral track on a disc shaped recording medium
DE3618720A1 (de) * 1985-06-05 1986-12-11 Hitachi, Ltd., Tokio/Tokyo Verfahren und vorrichtung zur spurnachfuehrung bei bildplatten
JPH0724108B2 (ja) * 1985-11-20 1995-03-15 株式会社日立製作所 光デイスク装置におけるトラツク引きこみ方法
KR870006556A (ko) * 1985-12-13 1987-07-13 미쓰다 가쓰시게 트랙킹서보 제어장치
US4866688A (en) * 1985-12-20 1989-09-12 Hitachi, Ltd. Composite tracking servo system for optical disc apparatus with track offset correction
JP2559372B2 (ja) * 1986-07-09 1996-12-04 株式会社日立製作所 光ディスク装置及び光情報記録方法
JPS6378386A (ja) * 1986-09-19 1988-04-08 Pioneer Electronic Corp 微調サ−ボ装置におけるオフセツト補償回路
JPS63104225A (ja) * 1986-10-21 1988-05-09 Csk Corp 光記録媒体のトラツキング方式
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
JP2732591B2 (ja) * 1988-06-30 1998-03-30 株式会社東芝 記録媒体処理装置

Also Published As

Publication number Publication date
US5253239A (en) 1993-10-12
KR940010946B1 (ko) 1994-11-19
EP0430541A2 (de) 1991-06-05
KR910010421A (ko) 1991-06-29
EP0430541B1 (de) 1996-04-03
EP0430541A3 (en) 1992-08-19
DE69026347T2 (de) 1996-11-07

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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