JPS60131645A - 光学デイスクプレ−ヤ - Google Patents

光学デイスクプレ−ヤ

Info

Publication number
JPS60131645A
JPS60131645A JP58239568A JP23956883A JPS60131645A JP S60131645 A JPS60131645 A JP S60131645A JP 58239568 A JP58239568 A JP 58239568A JP 23956883 A JP23956883 A JP 23956883A JP S60131645 A JPS60131645 A JP S60131645A
Authority
JP
Japan
Prior art keywords
track
information recording
optical disc
beams
tracks
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.)
Granted
Application number
JP58239568A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0452534B2 (enrdf_load_stackoverflow
Inventor
Masanobu Yamamoto
山本　真伸
Nobuhiko Umetsu
暢彦 梅津
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP58239568A priority Critical patent/JPS60131645A/ja
Publication of JPS60131645A publication Critical patent/JPS60131645A/ja
Publication of JPH0452534B2 publication Critical patent/JPH0452534B2/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
    • G11B7/0938—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
    • 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

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP58239568A 1983-12-19 1983-12-19 光学デイスクプレ−ヤ Granted JPS60131645A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58239568A JPS60131645A (ja) 1983-12-19 1983-12-19 光学デイスクプレ−ヤ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58239568A JPS60131645A (ja) 1983-12-19 1983-12-19 光学デイスクプレ−ヤ

Publications (2)

Publication Number Publication Date
JPS60131645A true JPS60131645A (ja) 1985-07-13
JPH0452534B2 JPH0452534B2 (enrdf_load_stackoverflow) 1992-08-24

Family

ID=17046730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58239568A Granted JPS60131645A (ja) 1983-12-19 1983-12-19 光学デイスクプレ−ヤ

Country Status (1)

Country Link
JP (1) JPS60131645A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02306435A (ja) * 1989-05-19 1990-12-19 Sanyo Electric Co Ltd 光学式記録再生系のトラッキング方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02306435A (ja) * 1989-05-19 1990-12-19 Sanyo Electric Co Ltd 光学式記録再生系のトラッキング方法

Also Published As

Publication number Publication date
JPH0452534B2 (enrdf_load_stackoverflow) 1992-08-24

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term