JPS60131641A - 光学デイスクプレ−ヤ - Google Patents

光学デイスクプレ−ヤ

Info

Publication number
JPS60131641A
JPS60131641A JP58239567A JP23956783A JPS60131641A JP S60131641 A JPS60131641 A JP S60131641A JP 58239567 A JP58239567 A JP 58239567A JP 23956783 A JP23956783 A JP 23956783A JP S60131641 A JPS60131641 A JP S60131641A
Authority
JP
Japan
Prior art keywords
track
tracks
beams
signal
optical disc
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
JP58239567A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0452533B2 (https=
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 JP58239567A priority Critical patent/JPS60131641A/ja
Publication of JPS60131641A publication Critical patent/JPS60131641A/ja
Publication of JPH0452533B2 publication Critical patent/JPH0452533B2/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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • 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)
JP58239567A 1983-12-19 1983-12-19 光学デイスクプレ−ヤ Granted JPS60131641A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58239567A JPS60131641A (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
JP58239567A JPS60131641A (ja) 1983-12-19 1983-12-19 光学デイスクプレ−ヤ

Publications (2)

Publication Number Publication Date
JPS60131641A true JPS60131641A (ja) 1985-07-13
JPH0452533B2 JPH0452533B2 (https=) 1992-08-24

Family

ID=17046715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58239567A Granted JPS60131641A (ja) 1983-12-19 1983-12-19 光学デイスクプレ−ヤ

Country Status (1)

Country Link
JP (1) JPS60131641A (https=)

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
JPH0452533B2 (https=) 1992-08-24

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term