JPH0418391B2 - - Google Patents

Info

Publication number
JPH0418391B2
JPH0418391B2 JP4571983A JP4571983A JPH0418391B2 JP H0418391 B2 JPH0418391 B2 JP H0418391B2 JP 4571983 A JP4571983 A JP 4571983A JP 4571983 A JP4571983 A JP 4571983A JP H0418391 B2 JPH0418391 B2 JP H0418391B2
Authority
JP
Japan
Prior art keywords
circuit
servo
disk
disk head
error signal
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.)
Expired
Application number
JP4571983A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59171085A (ja
Inventor
Masafumi Naito
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.)
Fujitsu General Ltd
Original Assignee
Fujitsu General 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 Fujitsu General Ltd filed Critical Fujitsu General Ltd
Priority to JP4571983A priority Critical patent/JPS59171085A/ja
Publication of JPS59171085A publication Critical patent/JPS59171085A/ja
Publication of JPH0418391B2 publication Critical patent/JPH0418391B2/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
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0946—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for operation during external perturbations not related to the carrier or servo beam, e.g. vibration

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)
  • Optical Recording Or Reproduction (AREA)
JP4571983A 1983-03-18 1983-03-18 デイスクヘツドのサ−ボ回路 Granted JPS59171085A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4571983A JPS59171085A (ja) 1983-03-18 1983-03-18 デイスクヘツドのサ−ボ回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4571983A JPS59171085A (ja) 1983-03-18 1983-03-18 デイスクヘツドのサ−ボ回路

Publications (2)

Publication Number Publication Date
JPS59171085A JPS59171085A (ja) 1984-09-27
JPH0418391B2 true JPH0418391B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-03-27

Family

ID=12727153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4571983A Granted JPS59171085A (ja) 1983-03-18 1983-03-18 デイスクヘツドのサ−ボ回路

Country Status (1)

Country Link
JP (1) JPS59171085A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63222377A (ja) * 1987-03-11 1988-09-16 Hitachi Ltd デイスク状情報記憶装置
JPH0736129B2 (ja) * 1989-01-10 1995-04-19 富士通株式会社 サーボ回路の位置制御オフセット調整方法
JPH0736128B2 (ja) * 1989-01-10 1995-04-19 富士通株式会社 サーボ回路の速度検出ゲイン自動調整方法

Also Published As

Publication number Publication date
JPS59171085A (ja) 1984-09-27

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