JPS5764342A - Optical system recorder and reproducer - Google Patents

Optical system recorder and reproducer

Info

Publication number
JPS5764342A
JPS5764342A JP14098280A JP14098280A JPS5764342A JP S5764342 A JPS5764342 A JP S5764342A JP 14098280 A JP14098280 A JP 14098280A JP 14098280 A JP14098280 A JP 14098280A JP S5764342 A JPS5764342 A JP S5764342A
Authority
JP
Japan
Prior art keywords
optical system
information signal
recording
shifter
moves
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.)
Pending
Application number
JP14098280A
Other languages
Japanese (ja)
Inventor
Shuzo Hitotsumachi
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 JP14098280A priority Critical patent/JPS5764342A/en
Publication of JPS5764342A publication Critical patent/JPS5764342A/en
Pending 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
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor

Landscapes

  • Moving Of Head For Track Selection And Changing (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

PURPOSE:To prevent double recording to a recorded part, by quickly forwarding an optical system or stopping it by an output of an information signal detector connected to a photodetector. CONSTITUTION:When a recording ready switch is turned on, a shifter 9 moves an optical system 7 at a high speed in the opposite direction of an arrow A up to a recording start point of a disk 5. The optical system 7 moves to the start point of recording, and in case when an information signal detector 11 still detects an information signal, the shifter 9 moves the optical system at a high speed in the direction as indicated with the arrow A until it comes not to detect the signal. When the information signal detector 11 comes not to detect the information signal, the shifter 9 stops its operation, and the device becomes a recording available state.
JP14098280A 1980-10-07 1980-10-07 Optical system recorder and reproducer Pending JPS5764342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14098280A JPS5764342A (en) 1980-10-07 1980-10-07 Optical system recorder and reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14098280A JPS5764342A (en) 1980-10-07 1980-10-07 Optical system recorder and reproducer

Publications (1)

Publication Number Publication Date
JPS5764342A true JPS5764342A (en) 1982-04-19

Family

ID=15281369

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14098280A Pending JPS5764342A (en) 1980-10-07 1980-10-07 Optical system recorder and reproducer

Country Status (1)

Country Link
JP (1) JPS5764342A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4819093A (en) * 1984-10-02 1989-04-04 Fuji Photo Film Co., Ltd. Rotary magnetic recording-reproducing apparatus with disc track checking
US4947280A (en) * 1984-10-02 1990-08-07 Fuji Photo Film Co., Ltd. Rotary magnetic reproducing apparatus with disc sensing logic
US5051849A (en) * 1985-11-28 1991-09-24 Canon Kabushiki Kaisha Recording apparatus including a pre-recording positioning function
US5144503A (en) * 1985-02-07 1992-09-01 Canon Kabushiki Kaisha Process for controlling an access position of a recording head which enables recording at each recording position on a recording medium without double recording and a device therefor
US6061090A (en) * 1985-10-30 2000-05-09 Canon Kabushiki Kaisha Recording and/or reproducing apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4819093A (en) * 1984-10-02 1989-04-04 Fuji Photo Film Co., Ltd. Rotary magnetic recording-reproducing apparatus with disc track checking
US4947280A (en) * 1984-10-02 1990-08-07 Fuji Photo Film Co., Ltd. Rotary magnetic reproducing apparatus with disc sensing logic
US5144503A (en) * 1985-02-07 1992-09-01 Canon Kabushiki Kaisha Process for controlling an access position of a recording head which enables recording at each recording position on a recording medium without double recording and a device therefor
US6061090A (en) * 1985-10-30 2000-05-09 Canon Kabushiki Kaisha Recording and/or reproducing apparatus
US5051849A (en) * 1985-11-28 1991-09-24 Canon Kabushiki Kaisha Recording apparatus including a pre-recording positioning function

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