JPS6330701B2 - - Google Patents

Info

Publication number
JPS6330701B2
JPS6330701B2 JP58237277A JP23727783A JPS6330701B2 JP S6330701 B2 JPS6330701 B2 JP S6330701B2 JP 58237277 A JP58237277 A JP 58237277A JP 23727783 A JP23727783 A JP 23727783A JP S6330701 B2 JPS6330701 B2 JP S6330701B2
Authority
JP
Japan
Prior art keywords
disk
information
spot
information track
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
Application number
JP58237277A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60129935A (ja
Inventor
Masamichi Tatsuoka
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 JP58237277A priority Critical patent/JPS60129935A/ja
Priority to US06/679,934 priority patent/US4635243A/en
Publication of JPS60129935A publication Critical patent/JPS60129935A/ja
Publication of JPS6330701B2 publication Critical patent/JPS6330701B2/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
    • G11B7/0901—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

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP58237277A 1983-12-16 1983-12-16 光学的情報処理装置 Granted JPS60129935A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP58237277A JPS60129935A (ja) 1983-12-16 1983-12-16 光学的情報処理装置
US06/679,934 US4635243A (en) 1983-12-16 1984-12-10 Optical information processing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58237277A JPS60129935A (ja) 1983-12-16 1983-12-16 光学的情報処理装置

Publications (2)

Publication Number Publication Date
JPS60129935A JPS60129935A (ja) 1985-07-11
JPS6330701B2 true JPS6330701B2 (en, 2012) 1988-06-20

Family

ID=17013002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58237277A Granted JPS60129935A (ja) 1983-12-16 1983-12-16 光学的情報処理装置

Country Status (2)

Country Link
US (1) US4635243A (en, 2012)
JP (1) JPS60129935A (en, 2012)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59139152A (ja) * 1983-01-28 1984-08-09 Canon Inc 光情報再生方法および装置
JPS6069840A (ja) * 1983-09-22 1985-04-20 Canon Inc 情報記録又は再生装置
JP2595212B2 (ja) * 1986-08-15 1997-04-02 キヤノン株式会社 情報記録再生装置
JP2573616B2 (ja) * 1987-08-31 1997-01-22 日本電気ホームエレクトロニクス株式会社 光磁気ヘッド
JPH0822630A (ja) * 1994-07-04 1996-01-23 Sharp Corp マルチビーム光ヘッド
JP2003233918A (ja) * 2002-02-08 2003-08-22 Fujitsu Ltd 光情報処理装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243850A (en) * 1979-02-07 1981-01-06 Eastman Kodak Company Apparatus for tracking a record track on a video disc
JPS5794482A (en) * 1980-12-05 1982-06-11 Hitachi Ltd Pattern forming device by laser
US4449215A (en) * 1982-03-24 1984-05-15 Rca Corporation Apparatus for varying track spacing in multi-track optical record systems
FR2528605B1 (fr) * 1982-06-15 1987-11-20 Thomson Csf Procede et dispositif optique de focalisation d'un faisceau d'energie lumineuse sur un plan de reference d'un support d'information ainsi que ce support

Also Published As

Publication number Publication date
US4635243A (en) 1987-01-06
JPS60129935A (ja) 1985-07-11

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