[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JPS5240151A - Method of detecting position for setting recording disc in an equipment for optical reproducing a record and recording plate therefore - Google Patents

Method of detecting position for setting recording disc in an equipment for optical reproducing a record and recording plate therefore

Info

Publication number
JPS5240151A
JPS5240151A JP50116158A JP11615875A JPS5240151A JP S5240151 A JPS5240151 A JP S5240151A JP 50116158 A JP50116158 A JP 50116158A JP 11615875 A JP11615875 A JP 11615875A JP S5240151 A JPS5240151 A JP S5240151A
Authority
JP
Japan
Prior art keywords
record
equipment
detecting position
recording
optical reproducing
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
JP50116158A
Other languages
Japanese (ja)
Other versions
JPS6030014B2 (en
Inventor
Tomio Yoshida
Masahiro Deguchi
Akifumi Nakada
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP50116158A priority Critical patent/JPS6030014B2/en
Publication of JPS5240151A publication Critical patent/JPS5240151A/en
Publication of JPS6030014B2 publication Critical patent/JPS6030014B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE:To perform a high dense record by detecting the depth of a focus due to a difference in the quantity of light received on two receptor elements, said light being reflected from a recording disc to an objective lens.
JP50116158A 1975-09-25 1975-09-25 Recording plate setting position detection method in optical recording/reproducing device and recording plate used therein Expired JPS6030014B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50116158A JPS6030014B2 (en) 1975-09-25 1975-09-25 Recording plate setting position detection method in optical recording/reproducing device and recording plate used therein

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50116158A JPS6030014B2 (en) 1975-09-25 1975-09-25 Recording plate setting position detection method in optical recording/reproducing device and recording plate used therein

Publications (2)

Publication Number Publication Date
JPS5240151A true JPS5240151A (en) 1977-03-28
JPS6030014B2 JPS6030014B2 (en) 1985-07-13

Family

ID=14680199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50116158A Expired JPS6030014B2 (en) 1975-09-25 1975-09-25 Recording plate setting position detection method in optical recording/reproducing device and recording plate used therein

Country Status (1)

Country Link
JP (1) JPS6030014B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59223960A (en) * 1984-03-26 1984-12-15 Matsushita Electric Ind Co Ltd Optical recording medium
JPH0628696A (en) * 1993-06-28 1994-02-04 Hitachi Ltd Method for recording information

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59223960A (en) * 1984-03-26 1984-12-15 Matsushita Electric Ind Co Ltd Optical recording medium
JPH0480455B2 (en) * 1984-03-26 1992-12-18 Matsushita Electric Ind Co Ltd
JPH0628696A (en) * 1993-06-28 1994-02-04 Hitachi Ltd Method for recording information

Also Published As

Publication number Publication date
JPS6030014B2 (en) 1985-07-13

Similar Documents

Publication Publication Date Title
DE3378142D1 (en) Apparatus for controlling the write beam on an optical data recording system
JPS5345506A (en) Information detecting apparatus
JPS51151150A (en) Optical record reproducing reproducer in signal
JPS5240151A (en) Method of detecting position for setting recording disc in an equipment for optical reproducing a record and recording plate therefore
JPS533305A (en) Optical reproduction device
JPS5424002A (en) Reproducer of optical information recording medium discs
JPS52134704A (en) Optical recorder/reproducer unit
JPS55101142A (en) Focus detection unit of optical reproducing device
JPS547305A (en) Optical recorder-reproducer
JPS55139642A (en) Optical information recording and reproducing device
JPS5250702A (en) Optical information recording and reproduction apparatus
JPS53110805A (en) Optical information recording/reproducing device
JPS55108937A (en) Optical recording and reproducing device
JPS5223304A (en) Optical read system of recorded signals in stereophonic sound recording disc
JPS542704A (en) Optical information reproducer
JPS51122344A (en) Beam control unit of optical information read-out equipment
JPS5439103A (en) Medium locator for fucus servo
JPS5280803A (en) Automatic focusing device
JPS5348704A (en) Optical signal regenerator
JPS56148745A (en) Optical recorder and reproducer
JPS5328404A (en) Optical information re producer
JPS53148412A (en) Optical recorder or reproducer
JPS5410701A (en) Focus-servo system for optical reproducing apparatus
JPS536001A (en) Focus location detector for optical recording medium
JPS5237404A (en) Optical recorder/player