JPS5724060A - Digital servo controlling system of recorder and reproducer - Google Patents

Digital servo controlling system of recorder and reproducer

Info

Publication number
JPS5724060A
JPS5724060A JP9842980A JP9842980A JPS5724060A JP S5724060 A JPS5724060 A JP S5724060A JP 9842980 A JP9842980 A JP 9842980A JP 9842980 A JP9842980 A JP 9842980A JP S5724060 A JPS5724060 A JP S5724060A
Authority
JP
Japan
Prior art keywords
phase
digital
servo control
control
reproducer
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
JP9842980A
Other languages
Japanese (ja)
Other versions
JPS6239496B2 (en
Inventor
Yoshiteru Kosaka
Kazutaka Ashida
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP9842980A priority Critical patent/JPS5724060A/en
Publication of JPS5724060A publication Critical patent/JPS5724060A/en
Publication of JPS6239496B2 publication Critical patent/JPS6239496B2/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
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/52—Controlling, regulating, or indicating speed by using signals recorded on, or derived from, record carrier

Abstract

PURPOSE:To ensure good and stable servo control, by securing digital servo control by the difference of phase, etc. between the clock count number in a necessary period and the reference phase of the reproduction control signal as well as the rotational speed of a servo motor. CONSTITUTION:An AND gate 7 is opened for the duration period of the pulse which is delivered from a 1/2 divider 6 in according to the rotational speed of a capstan motor 1, and a binary counter 9 of a microcomputer 8 counts the clocks of a quartz oscillator 10. While the digital phase error signal produced through a phase comparison between the output of a comparison signal producing circuit 13 of a monostable multivibrator, etc. that is triggered by the control reproduction signal supplied from a tape 11 via a phase comparator 14, an A/D converter 17, etc. and the output of a reference signal producing circuit 16 is applied to the computer 8. Then the computer 8 performs a necessary digital operation to give speed and phase digital servo control to a motor 1 via a D/A converter 23, etc. In such way, good and stable servo control is given to a recorder and reproducer with no deviation.
JP9842980A 1980-07-18 1980-07-18 Digital servo controlling system of recorder and reproducer Granted JPS5724060A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9842980A JPS5724060A (en) 1980-07-18 1980-07-18 Digital servo controlling system of recorder and reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9842980A JPS5724060A (en) 1980-07-18 1980-07-18 Digital servo controlling system of recorder and reproducer

Publications (2)

Publication Number Publication Date
JPS5724060A true JPS5724060A (en) 1982-02-08
JPS6239496B2 JPS6239496B2 (en) 1987-08-24

Family

ID=14219559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9842980A Granted JPS5724060A (en) 1980-07-18 1980-07-18 Digital servo controlling system of recorder and reproducer

Country Status (1)

Country Link
JP (1) JPS5724060A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH089675A (en) * 1982-04-02 1996-01-12 Ampex Corp Servo-controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH089675A (en) * 1982-04-02 1996-01-12 Ampex Corp Servo-controller

Also Published As

Publication number Publication date
JPS6239496B2 (en) 1987-08-24

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