JPS641856B2 - - Google Patents

Info

Publication number
JPS641856B2
JPS641856B2 JP2508280A JP2508280A JPS641856B2 JP S641856 B2 JPS641856 B2 JP S641856B2 JP 2508280 A JP2508280 A JP 2508280A JP 2508280 A JP2508280 A JP 2508280A JP S641856 B2 JPS641856 B2 JP S641856B2
Authority
JP
Japan
Prior art keywords
light
signal
recording
optical disk
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
JP2508280A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56124132A (en
Inventor
Masafumi Yokota
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP2508280A priority Critical patent/JPS56124132A/ja
Priority to US06/237,260 priority patent/US4408314A/en
Priority to EP81101378A priority patent/EP0035236B1/en
Priority to DE8181101378T priority patent/DE3167369D1/de
Publication of JPS56124132A publication Critical patent/JPS56124132A/ja
Publication of JPS641856B2 publication Critical patent/JPS641856B2/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

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP2508280A 1980-02-29 1980-02-29 Tracking control circuit for optical disc Granted JPS56124132A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2508280A JPS56124132A (en) 1980-02-29 1980-02-29 Tracking control circuit for optical disc
US06/237,260 US4408314A (en) 1980-02-29 1981-02-23 Record/playback track tracking servo
EP81101378A EP0035236B1 (en) 1980-02-29 1981-02-25 Tracking servo control device
DE8181101378T DE3167369D1 (en) 1980-02-29 1981-02-25 Tracking servo control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2508280A JPS56124132A (en) 1980-02-29 1980-02-29 Tracking control circuit for optical disc

Publications (2)

Publication Number Publication Date
JPS56124132A JPS56124132A (en) 1981-09-29
JPS641856B2 true JPS641856B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-01-12

Family

ID=12155998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2508280A Granted JPS56124132A (en) 1980-02-29 1980-02-29 Tracking control circuit for optical disc

Country Status (1)

Country Link
JP (1) JPS56124132A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933638A (ja) * 1982-08-16 1984-02-23 Hitachi Ltd 情報記録再生方法
JPH0727648B2 (ja) * 1986-01-14 1995-03-29 松下電器産業株式会社 トラツク飛び検出装置
JP2775009B2 (ja) * 1989-06-20 1998-07-09 ソニー株式会社 光記録装置
JP2530032Y2 (ja) * 1990-04-04 1997-03-26 株式会社ケンウッド 光ディスク記録再生装置のａｇｃ回路

Also Published As

Publication number Publication date
JPS56124132A (en) 1981-09-29

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