JPS58100234A - 光学再生装置 - Google Patents

光学再生装置

Info

Publication number
JPS58100234A
JPS58100234A JP19892281A JP19892281A JPS58100234A JP S58100234 A JPS58100234 A JP S58100234A JP 19892281 A JP19892281 A JP 19892281A JP 19892281 A JP19892281 A JP 19892281A JP S58100234 A JPS58100234 A JP S58100234A
Authority
JP
Japan
Prior art keywords
lens
recording medium
circuit
output
focus
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
JP19892281A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6360448B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Hirohisa Yamaguchi
山口　裕久
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.)
Teac Corp
Original Assignee
Teac 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 Teac Corp filed Critical Teac Corp
Priority to JP19892281A priority Critical patent/JPS58100234A/ja
Publication of JPS58100234A publication Critical patent/JPS58100234A/ja
Publication of JPS6360448B2 publication Critical patent/JPS6360448B2/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
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/10—Control of operating function, e.g. switching from recording to reproducing by sensing presence or absence of record in accessible stored position or on turntable

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP19892281A 1981-12-10 1981-12-10 光学再生装置 Granted JPS58100234A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19892281A JPS58100234A (ja) 1981-12-10 1981-12-10 光学再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19892281A JPS58100234A (ja) 1981-12-10 1981-12-10 光学再生装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP24663989A Division JPH02118920A (ja) 1989-09-22 1989-09-22 光学再生装置

Publications (2)

Publication Number Publication Date
JPS58100234A true JPS58100234A (ja) 1983-06-14
JPS6360448B2 JPS6360448B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-11-24

Family

ID=16399185

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19892281A Granted JPS58100234A (ja) 1981-12-10 1981-12-10 光学再生装置

Country Status (1)

Country Link
JP (1) JPS58100234A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6280251U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1985-11-08 1987-05-22
US4723234A (en) * 1982-06-04 1988-02-02 Sony Corporation Optical disc player

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5251905A (en) * 1975-10-23 1977-04-26 Mitsubishi Electric Corp Record player
JPS52108801A (en) * 1976-03-10 1977-09-12 Sony Corp Size detector for records
JPS54128707A (en) * 1978-03-27 1979-10-05 Mca Disco Vision Focus servo device
GB2061072A (en) * 1979-10-12 1981-05-07 Universal Pioneer Corp Video disc player
JPS5690743U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1979-12-12 1981-07-20

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5251905A (en) * 1975-10-23 1977-04-26 Mitsubishi Electric Corp Record player
JPS52108801A (en) * 1976-03-10 1977-09-12 Sony Corp Size detector for records
JPS54128707A (en) * 1978-03-27 1979-10-05 Mca Disco Vision Focus servo device
GB2061072A (en) * 1979-10-12 1981-05-07 Universal Pioneer Corp Video disc player
JPS5690743U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1979-12-12 1981-07-20

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723234A (en) * 1982-06-04 1988-02-02 Sony Corporation Optical disc player
JPS6280251U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1985-11-08 1987-05-22

Also Published As

Publication number Publication date
JPS6360448B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-11-24

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