JPH0419613B2 - - Google Patents

Info

Publication number
JPH0419613B2
JPH0419613B2 JP57141121A JP14112182A JPH0419613B2 JP H0419613 B2 JPH0419613 B2 JP H0419613B2 JP 57141121 A JP57141121 A JP 57141121A JP 14112182 A JP14112182 A JP 14112182A JP H0419613 B2 JPH0419613 B2 JP H0419613B2
Authority
JP
Japan
Prior art keywords
signal
tracking
synchronization
information
sample
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 - Lifetime
Application number
JP57141121A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5933638A (ja
Inventor
Seiji Yonezawa
Tatsuo Horikoshi
Toshiaki Tsuyoshi
Kazuo Takasugi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14112182A priority Critical patent/JPS5933638A/ja
Priority to NL8204555A priority patent/NL8204555A/nl
Priority to US06/443,871 priority patent/US4564929A/en
Priority to FR8219714A priority patent/FR2517103A1/fr
Priority to DE19823243685 priority patent/DE3243685A1/de
Publication of JPS5933638A publication Critical patent/JPS5933638A/ja
Priority to FR8512960A priority patent/FR2569038B1/fr
Publication of JPH0419613B2 publication Critical patent/JPH0419613B2/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

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP14112182A 1981-11-25 1982-08-16 情報記録再生方法 Granted JPS5933638A (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP14112182A JPS5933638A (ja) 1982-08-16 1982-08-16 情報記録再生方法
NL8204555A NL8204555A (nl) 1981-11-25 1982-11-23 Inrichting voor het registreren en weergeven van informatie.
US06/443,871 US4564929A (en) 1981-11-25 1982-11-23 Information recording and reproducing apparatus with tracking control by sampling
FR8219714A FR2517103A1 (fr) 1981-11-25 1982-11-24 Appareil d'enregistrement et de reproduction d'informations
DE19823243685 DE3243685A1 (de) 1981-11-25 1982-11-25 Informationsaufnahme- und wiedergabegeraet fuer eine optische platte
FR8512960A FR2569038B1 (fr) 1981-11-25 1985-08-30 Appareil d'enregistrement et de reproduction d'informations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14112182A JPS5933638A (ja) 1982-08-16 1982-08-16 情報記録再生方法

Publications (2)

Publication Number Publication Date
JPS5933638A JPS5933638A (ja) 1984-02-23
JPH0419613B2 true JPH0419613B2 (enrdf_load_stackoverflow) 1992-03-31

Family

ID=15284639

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14112182A Granted JPS5933638A (ja) 1981-11-25 1982-08-16 情報記録再生方法

Country Status (1)

Country Link
JP (1) JPS5933638A (enrdf_load_stackoverflow)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5826086B2 (ja) * 1976-12-28 1983-05-31 日本ビクター株式会社 情報記録盤及びその再生方式
JPS56124132A (en) * 1980-02-29 1981-09-29 Toshiba Corp Tracking control circuit for optical disc
JPS5774837A (en) * 1980-10-25 1982-05-11 Olympus Optical Co Ltd Signal detection system of optical information reproducing device

Also Published As

Publication number Publication date
JPS5933638A (ja) 1984-02-23

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