JPH0243274B2 - - Google Patents

Info

Publication number
JPH0243274B2
JPH0243274B2 JP59038214A JP3821484A JPH0243274B2 JP H0243274 B2 JPH0243274 B2 JP H0243274B2 JP 59038214 A JP59038214 A JP 59038214A JP 3821484 A JP3821484 A JP 3821484A JP H0243274 B2 JPH0243274 B2 JP H0243274B2
Authority
JP
Japan
Prior art keywords
linear motor
circuit
level
speed
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 - Lifetime
Application number
JP59038214A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60182567A (ja
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 filed Critical
Priority to JP3821484A priority Critical patent/JPS60182567A/ja
Publication of JPS60182567A publication Critical patent/JPS60182567A/ja
Publication of JPH0243274B2 publication Critical patent/JPH0243274B2/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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/08—Track changing or selecting during transducing operation
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs
JP3821484A 1984-02-29 1984-02-29 リニアモ−タ制御回路 Granted JPS60182567A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3821484A JPS60182567A (ja) 1984-02-29 1984-02-29 リニアモ−タ制御回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3821484A JPS60182567A (ja) 1984-02-29 1984-02-29 リニアモ−タ制御回路

Publications (2)

Publication Number Publication Date
JPS60182567A JPS60182567A (ja) 1985-09-18
JPH0243274B2 true JPH0243274B2 (zh) 1990-09-27

Family

ID=12519057

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3821484A Granted JPS60182567A (ja) 1984-02-29 1984-02-29 リニアモ−タ制御回路

Country Status (1)

Country Link
JP (1) JPS60182567A (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101972860B1 (ko) 2017-06-30 2019-04-26 주식회사 엠플러스 선형 진동 발생장치.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52137309A (en) * 1976-05-12 1977-11-16 Hitachi Ltd Head runaway detection circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52137309A (en) * 1976-05-12 1977-11-16 Hitachi Ltd Head runaway detection circuit

Also Published As

Publication number Publication date
JPS60182567A (ja) 1985-09-18

Similar Documents

Publication Publication Date Title
US4237501A (en) Emergency head unload system for magnetic disk drive
US4967291A (en) Method and apparatus for preventing an over-velocity error condition of a hard disk drive system
US6643088B1 (en) Magnetic disk drive and method of controlling a movement of carriage in an unload operation of head
US4706142A (en) Magnetic disk apparatus
JP2666248B2 (ja) 光学的情報記録再生装置
GB2121589A (en) Magnetic disk drive emergency head retract system
US4955011A (en) Information recording/reproducing apparatus with control device for maintaining head velocity below a critical velocity
EP0424980B1 (en) Optical disk drive device and information storage device
US4807062A (en) Multiple force retract circuit for a magnetic disk drive
JP2000116181A (ja) ボイスコイルモ―タ制御回路及び方法
US6490116B1 (en) Retraction control method and magnetic disk apparatus
US5001578A (en) Method and system for controlling disk recording and reproduction apparatus for reduced power consumption
US4607355A (en) Drive system
JPH0243274B2 (zh)
US5184338A (en) Optical disc system with improved track jumping operation
CA1127755A (en) Emergency head unload system for magnetic disk drive
US4954908A (en) Record medium control apparatus
CA1307845C (en) Optical disc system
US5315569A (en) Apparatus for recording and/or reproducing information on/from optical card-like information recording medium
JP2731206B2 (ja) 磁気ディスク装置
US4564872A (en) Magnetic head driving unit
JPH0440793B2 (zh)
JPH0414622A (ja) 光学式情報記録再生装置
KR850001460B1 (ko) 동축 디스크 팩(coaxial disk pack) 구동장치
JP2633761B2 (ja) 磁気ディスク装置のヘッド位置決め制御装置