JPS5760567A - Player - Google Patents

Player

Info

Publication number
JPS5760567A
JPS5760567A JP13461380A JP13461380A JPS5760567A JP S5760567 A JPS5760567 A JP S5760567A JP 13461380 A JP13461380 A JP 13461380A JP 13461380 A JP13461380 A JP 13461380A JP S5760567 A JPS5760567 A JP S5760567A
Authority
JP
Japan
Prior art keywords
motor
voltage
drive
contact
frequency
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
JP13461380A
Other languages
Japanese (ja)
Inventor
Satoru Kusaka
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP13461380A priority Critical patent/JPS5760567A/en
Publication of JPS5760567A publication Critical patent/JPS5760567A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00Driving, 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
    • G11B19/20Driving; Starting; Stopping; Control thereof
    • G11B19/28Speed controlling, regulating, or indicating

Abstract

PURPOSE:To decrease the leading time of a motor, by disconnecting a servo circuit for a prescribed time from the start of drive of a turn table drive motor and driving the motor with a higher voltage than the voltage at normal state. CONSTITUTION:A voltage V1 higher than a drive voltage at a normal speed of a motor 1 is applied to a contact (a) of a switch circuit 2. At the motor 1 in stop state, since the switch circuit 2 is selected to the contact (a), when a start switch 4 is closed, the motor 1 is driven with the voltage V1 as a drive voltage. Next, when the rotating speed of the motor 1 increases and the pulse frequency f from an FG5 is increase. When this frequency f approaches the frequency corresponding to the steadly speed of the motor 1, the switch circuit 2 is switched to a contact b through the output of a frequency comparator 8. As a result, the motor 1 is driven with the output of a servo circuit 6. Thus, the leading time of the motor 1 can be decreased.
JP13461380A 1980-09-26 1980-09-26 Player Pending JPS5760567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13461380A JPS5760567A (en) 1980-09-26 1980-09-26 Player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13461380A JPS5760567A (en) 1980-09-26 1980-09-26 Player

Publications (1)

Publication Number Publication Date
JPS5760567A true JPS5760567A (en) 1982-04-12

Family

ID=15132482

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13461380A Pending JPS5760567A (en) 1980-09-26 1980-09-26 Player

Country Status (1)

Country Link
JP (1) JPS5760567A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61212179A (en) * 1985-03-16 1986-09-20 Canon Inc Recording or reproducing device
JPS63317964A (en) * 1987-06-19 1988-12-26 Sanyo Electric Co Ltd Horizontal synchronizing signal sampling circuit
JPH0254471A (en) * 1988-08-18 1990-02-23 Alpine Electron Inc Cd player

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61212179A (en) * 1985-03-16 1986-09-20 Canon Inc Recording or reproducing device
JPS63317964A (en) * 1987-06-19 1988-12-26 Sanyo Electric Co Ltd Horizontal synchronizing signal sampling circuit
JPH0254471A (en) * 1988-08-18 1990-02-23 Alpine Electron Inc Cd player

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