JPS5439102A - Medium locating sytem for focus-servo - Google Patents

Medium locating sytem for focus-servo

Info

Publication number
JPS5439102A
JPS5439102A JP10473877A JP10473877A JPS5439102A JP S5439102 A JPS5439102 A JP S5439102A JP 10473877 A JP10473877 A JP 10473877A JP 10473877 A JP10473877 A JP 10473877A JP S5439102 A JPS5439102 A JP S5439102A
Authority
JP
Japan
Prior art keywords
servo
sytem
focus
medium locating
medium
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
JP10473877A
Other languages
Japanese (ja)
Other versions
JPS6044727B2 (en
Inventor
Yoshihiko Honjo
Takashi Tsurukubo
Nobuhiro Hagiwara
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP52104738A priority Critical patent/JPS6044727B2/en
Publication of JPS5439102A publication Critical patent/JPS5439102A/en
Publication of JPS6044727B2 publication Critical patent/JPS6044727B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To locate a medium stably and highly accurately by interposing a reflecting mirror between a galvanomirror for tracking servo and an objective lens.
JP52104738A 1977-09-02 1977-09-02 Media position detection method in focus servo Expired JPS6044727B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52104738A JPS6044727B2 (en) 1977-09-02 1977-09-02 Media position detection method in focus servo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52104738A JPS6044727B2 (en) 1977-09-02 1977-09-02 Media position detection method in focus servo

Publications (2)

Publication Number Publication Date
JPS5439102A true JPS5439102A (en) 1979-03-26
JPS6044727B2 JPS6044727B2 (en) 1985-10-05

Family

ID=14388831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52104738A Expired JPS6044727B2 (en) 1977-09-02 1977-09-02 Media position detection method in focus servo

Country Status (1)

Country Link
JP (1) JPS6044727B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546463A (en) * 1981-04-21 1985-10-08 U.S. Philips Corporation Apparatus for recording and reading information tracks on an optical record carrier with a beam of radiation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51144203A (en) * 1975-06-06 1976-12-11 Hitachi Ltd Political device for information reproduction
JPS5263614A (en) * 1975-11-20 1977-05-26 Sony Corp Information detector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51144203A (en) * 1975-06-06 1976-12-11 Hitachi Ltd Political device for information reproduction
JPS5263614A (en) * 1975-11-20 1977-05-26 Sony Corp Information detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546463A (en) * 1981-04-21 1985-10-08 U.S. Philips Corporation Apparatus for recording and reading information tracks on an optical record carrier with a beam of radiation

Also Published As

Publication number Publication date
JPS6044727B2 (en) 1985-10-05

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