JPS5764372A - Rotation control system of disk recording medium - Google Patents

Rotation control system of disk recording medium

Info

Publication number
JPS5764372A
JPS5764372A JP13656080A JP13656080A JPS5764372A JP S5764372 A JPS5764372 A JP S5764372A JP 13656080 A JP13656080 A JP 13656080A JP 13656080 A JP13656080 A JP 13656080A JP S5764372 A JPS5764372 A JP S5764372A
Authority
JP
Japan
Prior art keywords
accordance
signal
disk
recording medium
phase error
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
JP13656080A
Other languages
Japanese (ja)
Inventor
Daiki Nabeshima
Toyoki Taguchi
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 JP13656080A priority Critical patent/JPS5764372A/en
Publication of JPS5764372A publication Critical patent/JPS5764372A/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)

Abstract

PURPOSE:To execute a constant line speed control whose operation is stable and exact, by controlling in accordance with a phase error of a reference signal generated in accordance with a position of a disk radial direction of a signal detecting part, and a tack signal obtained by rotating a disk. CONSTITUTION:As for a counting value which is set in accordance with a position in the disk radial direction of a signal detecting means 4 for tracing a spiral track of a disk recording medium 1, a phase error of a comparing signal generated whenever a clock of a prescribed frequency is obtained by counting it by a counter 26, and a tack signal moving in accordance with rotation of the disk 1 is detected by a phase detector 13. In this way, feedback of a rotation speed of a motor 2 is limited in accordance with this phase error, so as to execute the control for making the phase relation constant between said tack signal and the comparing signal.
JP13656080A 1980-09-30 1980-09-30 Rotation control system of disk recording medium Pending JPS5764372A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13656080A JPS5764372A (en) 1980-09-30 1980-09-30 Rotation control system of disk recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13656080A JPS5764372A (en) 1980-09-30 1980-09-30 Rotation control system of disk recording medium

Publications (1)

Publication Number Publication Date
JPS5764372A true JPS5764372A (en) 1982-04-19

Family

ID=15178083

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13656080A Pending JPS5764372A (en) 1980-09-30 1980-09-30 Rotation control system of disk recording medium

Country Status (1)

Country Link
JP (1) JPS5764372A (en)

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