JPH0517613B2 - - Google Patents

Info

Publication number
JPH0517613B2
JPH0517613B2 JP60133002A JP13300285A JPH0517613B2 JP H0517613 B2 JPH0517613 B2 JP H0517613B2 JP 60133002 A JP60133002 A JP 60133002A JP 13300285 A JP13300285 A JP 13300285A JP H0517613 B2 JPH0517613 B2 JP H0517613B2
Authority
JP
Japan
Prior art keywords
information recording
optical information
optical
recording area
recording medium
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
JP60133002A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61292228A (ja
Inventor
Bunro Kawaguchi
Akio Aoki
Kazuo Minora
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 JP60133002A priority Critical patent/JPS61292228A/ja
Publication of JPS61292228A publication Critical patent/JPS61292228A/ja
Publication of JPH0517613B2 publication Critical patent/JPH0517613B2/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
    • 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
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
JP60133002A 1985-06-20 1985-06-20 光学的情報記録媒体の情報記録方法 Granted JPS61292228A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60133002A JPS61292228A (ja) 1985-06-20 1985-06-20 光学的情報記録媒体の情報記録方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60133002A JPS61292228A (ja) 1985-06-20 1985-06-20 光学的情報記録媒体の情報記録方法

Publications (2)

Publication Number Publication Date
JPS61292228A JPS61292228A (ja) 1986-12-23
JPH0517613B2 true JPH0517613B2 (en]) 1993-03-09

Family

ID=15094486

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60133002A Granted JPS61292228A (ja) 1985-06-20 1985-06-20 光学的情報記録媒体の情報記録方法

Country Status (1)

Country Link
JP (1) JPS61292228A (en])

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0196835A (ja) * 1987-10-07 1989-04-14 Csk Corp 光メモリカードのトラッキング装置
JP2596992B2 (ja) * 1988-11-30 1997-04-02 日本電気ホームエレクトロニクス株式会社 光ディスクの情報読取方法
JP4685754B2 (ja) * 2006-12-28 2011-05-18 株式会社日立製作所 トラッキング方法
JP5168493B2 (ja) * 2008-10-16 2013-03-21 コニカミノルタアドバンストレイヤー株式会社 光ピックアップ装置

Also Published As

Publication number Publication date
JPS61292228A (ja) 1986-12-23

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