JPH0370293B2 - - Google Patents

Info

Publication number
JPH0370293B2
JPH0370293B2 JP3728384A JP3728384A JPH0370293B2 JP H0370293 B2 JPH0370293 B2 JP H0370293B2 JP 3728384 A JP3728384 A JP 3728384A JP 3728384 A JP3728384 A JP 3728384A JP H0370293 B2 JPH0370293 B2 JP H0370293B2
Authority
JP
Japan
Prior art keywords
tracking
reference signal
coil
signal
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
Application number
JP3728384A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60182522A (ja
Inventor
Masato Ikeda
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 Group Corp
Original Assignee
Aiwa Co Ltd
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 Aiwa Co Ltd filed Critical Aiwa Co Ltd
Priority to JP3728384A priority Critical patent/JPS60182522A/ja
Publication of JPS60182522A publication Critical patent/JPS60182522A/ja
Publication of JPH0370293B2 publication Critical patent/JPH0370293B2/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

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
JP3728384A 1984-03-01 1984-03-01 光学ピックアップ装置 Granted JPS60182522A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3728384A JPS60182522A (ja) 1984-03-01 1984-03-01 光学ピックアップ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3728384A JPS60182522A (ja) 1984-03-01 1984-03-01 光学ピックアップ装置

Publications (2)

Publication Number Publication Date
JPS60182522A JPS60182522A (ja) 1985-09-18
JPH0370293B2 true JPH0370293B2 (ko) 1991-11-07

Family

ID=12493370

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3728384A Granted JPS60182522A (ja) 1984-03-01 1984-03-01 光学ピックアップ装置

Country Status (1)

Country Link
JP (1) JPS60182522A (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62267928A (ja) * 1986-05-16 1987-11-20 Asahi Optical Co Ltd 光ピツクアツプ
JPS62231429A (ja) * 1986-03-31 1987-10-12 Asahi Optical Co Ltd 光デイスク用対物レンズ駆動装置
JPH0738254B2 (ja) * 1986-06-09 1995-04-26 富士通株式会社 光ディスク装置のトラッキング回路
JPH0614252Y2 (ja) * 1987-07-28 1994-04-13 オリンパス光学工業株式会社 対物レンズの位置検出装置

Also Published As

Publication number Publication date
JPS60182522A (ja) 1985-09-18

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term