JPS6423470A - Optical head drive system - Google Patents

Optical head drive system

Info

Publication number
JPS6423470A
JPS6423470A JP17841187A JP17841187A JPS6423470A JP S6423470 A JPS6423470 A JP S6423470A JP 17841187 A JP17841187 A JP 17841187A JP 17841187 A JP17841187 A JP 17841187A JP S6423470 A JPS6423470 A JP S6423470A
Authority
JP
Japan
Prior art keywords
frequency
head
clock
track
optical head
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
JP17841187A
Other languages
Japanese (ja)
Inventor
Haruhisa Kurane
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP17841187A priority Critical patent/JPS6423470A/en
Publication of JPS6423470A publication Critical patent/JPS6423470A/en
Pending legal-status Critical Current

Links

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

PURPOSE:To allow a head to trace a track with simple and small sized constitution by controlling a head drive step motor based on a clock having a frequency proportional to the number of revolutions of a recording medium. CONSTITUTION:A recording medium 1 is driven by a spindle motor 2 at the number of revolutions proportional to the clock frequency from a rotation frequency control section 3. The clock is fed to a step motor 5 driving a head 8 as a clock having a frequency fC moving the optical head 8 by one track while the medium 1 satisfying the relation of fC=(1/A).W via a frequency divider 4 whose frequency division ratio N is expressed as N=1/A. As a result, the head is able to follow the track with a simple and small sized constitution employing an open loop, where A is a constant decided by the mechanism such as the motor 5.
JP17841187A 1987-07-17 1987-07-17 Optical head drive system Pending JPS6423470A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17841187A JPS6423470A (en) 1987-07-17 1987-07-17 Optical head drive system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17841187A JPS6423470A (en) 1987-07-17 1987-07-17 Optical head drive system

Publications (1)

Publication Number Publication Date
JPS6423470A true JPS6423470A (en) 1989-01-26

Family

ID=16048023

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17841187A Pending JPS6423470A (en) 1987-07-17 1987-07-17 Optical head drive system

Country Status (1)

Country Link
JP (1) JPS6423470A (en)

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