JPH06103539B2 - 光デイスクトラツキング装置 - Google Patents

光デイスクトラツキング装置

Info

Publication number
JPH06103539B2
JPH06103539B2 JP27322885A JP27322885A JPH06103539B2 JP H06103539 B2 JPH06103539 B2 JP H06103539B2 JP 27322885 A JP27322885 A JP 27322885A JP 27322885 A JP27322885 A JP 27322885A JP H06103539 B2 JPH06103539 B2 JP H06103539B2
Authority
JP
Japan
Prior art keywords
tracking
error signal
tracking error
gain
signal
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
JP27322885A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62134830A (ja
Inventor
敏明 津吉
正利 大竹
成二 米澤
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
Priority to JP27322885A priority Critical patent/JPH06103539B2/ja
Priority to DE19863641587 priority patent/DE3641587A1/de
Priority to US06/938,961 priority patent/US4707816A/en
Publication of JPS62134830A publication Critical patent/JPS62134830A/ja
Publication of JPH06103539B2 publication Critical patent/JPH06103539B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
    • 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
    • G11B7/0904—Dithered tracking systems
    • 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
    • G11B7/0938—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 servo format, e.g. guide tracks, pilot signals

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP27322885A 1985-03-29 1985-12-06 光デイスクトラツキング装置 Expired - Lifetime JPH06103539B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP27322885A JPH06103539B2 (ja) 1985-12-06 1985-12-06 光デイスクトラツキング装置
DE19863641587 DE3641587A1 (de) 1985-12-06 1986-12-05 Verfahren und vorrichtung fuer zusammengesetzte wobblespur-servoanordnung
US06/938,961 US4707816A (en) 1985-03-29 1986-12-08 Method and apparatus for composite wobbled and push-pull tracking servo system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27322885A JPH06103539B2 (ja) 1985-12-06 1985-12-06 光デイスクトラツキング装置

Publications (2)

Publication Number Publication Date
JPS62134830A JPS62134830A (ja) 1987-06-17
JPH06103539B2 true JPH06103539B2 (ja) 1994-12-14

Family

ID=17524900

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27322885A Expired - Lifetime JPH06103539B2 (ja) 1985-03-29 1985-12-06 光デイスクトラツキング装置

Country Status (2)

Country Link
JP (1) JPH06103539B2 (enrdf_load_stackoverflow)
DE (1) DE3641587A1 (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2889236B2 (ja) * 1987-06-24 1999-05-10 ソニー株式会社 光ディスク装置におけるトラッキングサーボ方式
JP2645025B2 (ja) * 1987-09-04 1997-08-25 株式会社日立製作所 光記録再生方法
JPH0721879B2 (ja) * 1987-11-07 1995-03-08 株式会社日立製作所 光ディスク用レプリカ基盤，スタンパまたは原盤
DE3856572T2 (de) * 1987-11-18 2005-09-22 Sharp K.K. Optisches Speichermedium
NL8800151A (nl) * 1988-01-22 1989-08-16 Philips Nv Werkwijze en inrichting voor het optekenen van een informatiesignaal.
JPH03100931A (ja) * 1989-09-14 1991-04-25 Mitsubishi Electric Corp 光学式情報記録再生装置
JP2593229B2 (ja) * 1990-02-16 1997-03-26 キヤノン株式会社 光ディスク装置
US5247502A (en) * 1990-02-16 1993-09-21 Canon Kabushiki Kaisha Optical information recording and/or reproducing apparatus and method for sampling an irradiation state error signal
CN1282180C (zh) * 2000-06-22 2006-10-25 松下电器产业株式会社 光盘记录媒体
CN1235205C (zh) * 2000-06-26 2006-01-04 松下电器产业株式会社 光学头

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5415727B2 (enrdf_load_stackoverflow) * 1973-02-02 1979-06-16
US4748609A (en) * 1985-03-29 1988-05-31 Hitachi, Ltd. Method and apparatus for composite tracking servo system with track offset correction and rotary optical disc having at least one correction mark for correcting track offset

Also Published As

Publication number Publication date
JPS62134830A (ja) 1987-06-17
DE3641587C2 (enrdf_load_stackoverflow) 1990-12-13
DE3641587A1 (de) 1987-06-11

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