JPH0547895B2 - - Google Patents

Info

Publication number
JPH0547895B2
JPH0547895B2 JP62200037A JP20003787A JPH0547895B2 JP H0547895 B2 JPH0547895 B2 JP H0547895B2 JP 62200037 A JP62200037 A JP 62200037A JP 20003787 A JP20003787 A JP 20003787A JP H0547895 B2 JPH0547895 B2 JP H0547895B2
Authority
JP
Japan
Prior art keywords
recording
tracking
information
light
servo
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
JP62200037A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6446237A (en
Inventor
Satoshi Shikichi
Shigeto Kanda
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP62200037A priority Critical patent/JPS6446237A/ja
Priority to DE8888306977T priority patent/DE3871280D1/de
Priority to EP88306977A priority patent/EP0303373B1/en
Priority to CA000573474A priority patent/CA1313912C/en
Publication of JPS6446237A publication Critical patent/JPS6446237A/ja
Priority to US07/794,644 priority patent/US5150345A/en
Publication of JPH0547895B2 publication Critical patent/JPH0547895B2/ja
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
    • G11B7/09—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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0033—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with cards or other card-like flat carriers, e.g. flat sheets of optical film

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Automatic Focus Adjustment (AREA)
JP62200037A 1987-08-12 1987-08-12 Optical information recording and reproducing device Granted JPS6446237A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62200037A JPS6446237A (en) 1987-08-12 1987-08-12 Optical information recording and reproducing device
DE8888306977T DE3871280D1 (de) 1987-08-12 1988-07-28 Geraet zur optischen informationsaufzeichnung mit mitteln zum feststellen und halten von servosignalen, wenn die intensitaet eines lichtstrahles veraendert wird.
EP88306977A EP0303373B1 (en) 1987-08-12 1988-07-28 Optical information recording apparatus provided with means for sampling and holding a servo signal when the intensity of a light beam is varied
CA000573474A CA1313912C (en) 1987-08-12 1988-07-29 Optical information recording apparatus provided with means for sampling and holding a servo signal when the intensity of a light bem is varied
US07/794,644 US5150345A (en) 1987-08-12 1991-11-18 Optical information recording apparatus provided with means for sampling and holding a servo signal when the intensity of a light beam varies between intensity levels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62200037A JPS6446237A (en) 1987-08-12 1987-08-12 Optical information recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS6446237A JPS6446237A (en) 1989-02-20
JPH0547895B2 true JPH0547895B2 (en, 2012) 1993-07-20

Family

ID=16417775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62200037A Granted JPS6446237A (en) 1987-08-12 1987-08-12 Optical information recording and reproducing device

Country Status (5)

Country Link
US (1) US5150345A (en, 2012)
EP (1) EP0303373B1 (en, 2012)
JP (1) JPS6446237A (en, 2012)
CA (1) CA1313912C (en, 2012)
DE (1) DE3871280D1 (en, 2012)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2954404B2 (ja) * 1991-10-09 1999-09-27 株式会社日本コンラックス 光学的情報記録再生装置
US5680382A (en) * 1992-04-10 1997-10-21 Canon Kabushiki Kaisha Optical information recording apparatus and method capable of handling a plurality of card-like recording media of different reflectance
EP0582446B1 (en) * 1992-07-31 2000-05-10 Matsushita Electric Industrial Co., Ltd. Optical data storage medium
US5436880A (en) * 1994-01-10 1995-07-25 Eastman Kodak Company Laser power control in an optical recording system using partial correction of reflected signal error
JPH08147699A (ja) * 1994-11-22 1996-06-07 Sony Corp 情報記録再生装置
JPH0950632A (ja) * 1995-08-03 1997-02-18 Fujitsu Ltd ピックアップ制御方法及び装置並びにディスク装置
WO1998049679A2 (en) * 1997-04-25 1998-11-05 Koninklijke Philips Electronics N.V. Apparatus and detection unit for scanning an optically readable record carrier
JP3503513B2 (ja) * 1999-02-22 2004-03-08 ヤマハ株式会社 光ディスク記録方法及び装置
US8559282B2 (en) * 2008-03-20 2013-10-15 Mediatek Inc. Average servo control method and system, and target level determination method applied in thereof

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922290B2 (ja) * 1975-12-26 1984-05-25 松下電器産業株式会社 コウガクシキジヨウホウキロクサイセイソウチ
JPS52134704A (en) * 1976-05-06 1977-11-11 Teac Co Optical recorder/reproducer unit
JPS5774837A (en) * 1980-10-25 1982-05-11 Olympus Optical Co Ltd Signal detection system of optical information reproducing device
FR2511537B1 (fr) * 1981-08-14 1986-09-05 Thomson Csf Dispositif optique de suivi de piste a echantillonnage
JPS58215736A (ja) * 1982-06-07 1983-12-15 Pioneer Electronic Corp 光学式記録情報読取装置におけるサ−ボ装置
JPS5911543A (ja) * 1982-07-10 1984-01-21 Sony Corp 光学式デイスク再生装置
JPS59116939A (ja) * 1982-12-23 1984-07-06 Olympus Optical Co Ltd 光学式記録再生装置
JPS59167861A (ja) * 1983-03-14 1984-09-21 Sony Corp 光学式デイスク・プレ−ヤ−のトラツキング制御装置
JPS59185038A (ja) * 1983-04-04 1984-10-20 Trio Kenwood Corp フオ−カスエラ−検出装置
US4661942A (en) * 1983-08-26 1987-04-28 Mitsubishi Denki Kabushiki Kaisha Control apparatus for information storage and retrieval system
NL8303564A (nl) * 1983-10-17 1985-05-17 Philips Nv Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager.
JPH0690804B2 (ja) * 1984-01-20 1994-11-14 株式会社日立製作所 光学的情報記録再生装置
JPS61117737A (ja) * 1984-11-13 1986-06-05 Pioneer Electronic Corp フオ−カスサ−ボ装置
JPS61156540A (ja) * 1984-12-27 1986-07-16 Ricoh Co Ltd 光情報記録再生装置
GB2172138A (en) * 1984-12-29 1986-09-10 Canon Kk Optical recording-reproducing apparatus
FR2575578B1 (fr) * 1984-12-31 1995-03-03 Canon Kk Appareil d'enregistrement et de reproduction optiques d'informations
DE3618720A1 (de) * 1985-06-05 1986-12-11 Hitachi, Ltd., Tokio/Tokyo Verfahren und vorrichtung zur spurnachfuehrung bei bildplatten
NL8502802A (nl) * 1985-10-14 1987-05-04 Philips Nv Inrichting voor het uitlezen en/of inschrijven van een optische spoorvormige informatiestruktuur.
US4701603A (en) * 1985-10-17 1987-10-20 Optical Disc Corporation Focus control system for optical information recorder or player

Also Published As

Publication number Publication date
EP0303373B1 (en) 1992-05-20
EP0303373A1 (en) 1989-02-15
DE3871280D1 (de) 1992-06-25
CA1313912C (en) 1993-02-23
JPS6446237A (en) 1989-02-20
US5150345A (en) 1992-09-22

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees