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JPS5694546A - Reproducing device for recording disc - Google Patents

Reproducing device for recording disc

Info

Publication number
JPS5694546A
JPS5694546A JP17168679A JP17168679A JPS5694546A JP S5694546 A JPS5694546 A JP S5694546A JP 17168679 A JP17168679 A JP 17168679A JP 17168679 A JP17168679 A JP 17168679A JP S5694546 A JPS5694546 A JP S5694546A
Authority
JP
Japan
Prior art keywords
signal
circuit
squelch
playback
video
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
JP17168679A
Other languages
Japanese (ja)
Inventor
Toshiyasu Kato
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP17168679A priority Critical patent/JPS5694546A/en
Publication of JPS5694546A publication Critical patent/JPS5694546A/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
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/24—Arrangements for providing constant relative speed between record carrier and head

Landscapes

  • Rotational Drive Of Disk (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To obtain stable reproduced screen, by leading out video and voice signal, after a motor is in stable condition, in the signal playback on the way of information recording part recorded with the line speed constant system. CONSTITUTION:In the signal playback on the way of a disc 25, since the reference signal 33 is not matched to a horizontal synchronizing signal 31 separated from the playback video signal at the start of signal playback, the beat phenomenon for both the signals is caused. The error signal having the beat frequency component is input to a motor control circuit 35 via an integration circuit 34 and to a squelch circuit 30 via an integration circuit 38 from a detection circuit 37 to inhibit the production of video and voice signals during the period of the presence of beat frequency components. By changing the squelch operating point of the squelch circuit and the time constant of the integration circuit, the operating period of the squelch circuit can suitably be set.
JP17168679A 1979-12-27 1979-12-27 Reproducing device for recording disc Pending JPS5694546A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17168679A JPS5694546A (en) 1979-12-27 1979-12-27 Reproducing device for recording disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17168679A JPS5694546A (en) 1979-12-27 1979-12-27 Reproducing device for recording disc

Publications (1)

Publication Number Publication Date
JPS5694546A true JPS5694546A (en) 1981-07-31

Family

ID=15927806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17168679A Pending JPS5694546A (en) 1979-12-27 1979-12-27 Reproducing device for recording disc

Country Status (1)

Country Link
JP (1) JPS5694546A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114354A (en) * 1981-12-26 1983-07-07 Matsushita Electric Ind Co Ltd Disk reproducer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5031808A (en) * 1973-07-19 1975-03-28
JPS5241505A (en) * 1975-09-29 1977-03-31 Matsushita Electric Ind Co Ltd Recorder/player

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5031808A (en) * 1973-07-19 1975-03-28
JPS5241505A (en) * 1975-09-29 1977-03-31 Matsushita Electric Ind Co Ltd Recorder/player

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114354A (en) * 1981-12-26 1983-07-07 Matsushita Electric Ind Co Ltd Disk reproducer
JPS63865B2 (en) * 1981-12-26 1988-01-08 Matsushita Electric Ind Co Ltd

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