JPS57167166A - Recording device using disc-shaped recording medium - Google Patents

Recording device using disc-shaped recording medium

Info

Publication number
JPS57167166A
JPS57167166A JP5093481A JP5093481A JPS57167166A JP S57167166 A JPS57167166 A JP S57167166A JP 5093481 A JP5093481 A JP 5093481A JP 5093481 A JP5093481 A JP 5093481A JP S57167166 A JPS57167166 A JP S57167166A
Authority
JP
Japan
Prior art keywords
output
recording
motor
disc
recording medium
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
JP5093481A
Other languages
Japanese (ja)
Other versions
JPH0219548B2 (en
Inventor
Seizo Tsuji
Ryoichi Imanaka
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 JP5093481A priority Critical patent/JPS57167166A/en
Publication of JPS57167166A publication Critical patent/JPS57167166A/en
Publication of JPH0219548B2 publication Critical patent/JPH0219548B2/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
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/24—Arrangements for providing constant relative speed between record carrier and head

Landscapes

  • Rotational Drive Of Disk (AREA)

Abstract

PURPOSE:To improve a practical recording density and prevent the degradation of the characteristic, by making relative speeds of a recording signal converting element and a disc-shaped recording medium constant in the outside circumferential part and the inside circumferential part of the recording medium. CONSTITUTION:The signal of a frequency proportional to the number of rotations of a turntable motor 4 which rotates a disc 1 is inputted to a frequency multiplier 6 through a rotation detector 5. The output of a rotation reference generator 10 and the output of the frequency multiplier 6 are compared in phase with each other by a comparator 11, and the error output is supplied to the turntable motor 4 through a motor driving circuit 12. A signal converting element 2 is connected to a feed screw 13 and is driven through a reduction gear 14 by a feed motor 15. The output of a rotation detector 16 of the feed motor 15 and the output of the rotation detector 5 are compared in phase with each other by a comparator 17, and the error output is supplied to the feed motor 15 through a motor driving circuit 18. By this constitution, an accurate CLV (recording in constant relative speed) recording is performed, and the degradation of the characteristic in the inside circumferential part is prevented.
JP5093481A 1981-04-03 1981-04-03 Recording device using disc-shaped recording medium Granted JPS57167166A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5093481A JPS57167166A (en) 1981-04-03 1981-04-03 Recording device using disc-shaped recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5093481A JPS57167166A (en) 1981-04-03 1981-04-03 Recording device using disc-shaped recording medium

Publications (2)

Publication Number Publication Date
JPS57167166A true JPS57167166A (en) 1982-10-14
JPH0219548B2 JPH0219548B2 (en) 1990-05-02

Family

ID=12872642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5093481A Granted JPS57167166A (en) 1981-04-03 1981-04-03 Recording device using disc-shaped recording medium

Country Status (1)

Country Link
JP (1) JPS57167166A (en)

Also Published As

Publication number Publication date
JPH0219548B2 (en) 1990-05-02

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