JPH0256749B2 - - Google Patents

Info

Publication number
JPH0256749B2
JPH0256749B2 JP56072262A JP7226281A JPH0256749B2 JP H0256749 B2 JPH0256749 B2 JP H0256749B2 JP 56072262 A JP56072262 A JP 56072262A JP 7226281 A JP7226281 A JP 7226281A JP H0256749 B2 JPH0256749 B2 JP H0256749B2
Authority
JP
Japan
Prior art keywords
signal
magnetic head
cylinder
circuit
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.)
Expired
Application number
JP56072262A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57189376A (en
Inventor
Yasuichi Hashimoto
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
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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP56072262A priority Critical patent/JPS57189376A/ja
Priority to US06/361,248 priority patent/US4480279A/en
Publication of JPS57189376A publication Critical patent/JPS57189376A/ja
Publication of JPH0256749B2 publication Critical patent/JPH0256749B2/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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G11B5/553—Details
    • G11B5/5547—"Seek" control and circuits therefor

Landscapes

  • Moving Of Head For Track Selection And Changing (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Control Of Position Or Direction (AREA)
JP56072262A 1981-05-15 1981-05-15 Magnetic disc device Granted JPS57189376A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56072262A JPS57189376A (en) 1981-05-15 1981-05-15 Magnetic disc device
US06/361,248 US4480279A (en) 1981-05-15 1982-03-24 Magnetic disk memory track change servo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56072262A JPS57189376A (en) 1981-05-15 1981-05-15 Magnetic disc device

Publications (2)

Publication Number Publication Date
JPS57189376A JPS57189376A (en) 1982-11-20
JPH0256749B2 true JPH0256749B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-12-03

Family

ID=13484190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56072262A Granted JPS57189376A (en) 1981-05-15 1981-05-15 Magnetic disc device

Country Status (2)

Country Link
US (1) US4480279A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS57189376A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4590527A (en) * 1983-11-14 1986-05-20 Burroughs Corporation Positioning servomechanisms
JPS60131640A (ja) * 1983-12-20 1985-07-13 Canon Inc 光デイスク装置のトラツクアクセス方法
US4630190A (en) * 1984-02-21 1986-12-16 Syquest Technology Servo control apparatus for a disk drive
JPS6220183A (ja) * 1985-07-18 1987-01-28 Toshiba Corp トラツク飛び越し制御回路
US4920462A (en) * 1988-03-07 1990-04-24 Syquest Technology Disc drive fine servo velocity control and method for head positioning relative to a disc
JPH0757111B2 (ja) * 1988-05-13 1995-06-14 富士通株式会社 磁気ディスクのサーボ回路
US5194798A (en) * 1989-01-10 1993-03-16 Fujitsu Limited Servo circuit control method and system
WO1990010973A1 (en) * 1989-03-15 1990-09-20 International Business Machines Corporation Starting a brushless dc motor
KR950009528B1 (ko) * 1989-12-11 1995-08-23 화낙 가부시끼가이샤 비틀림량의 피드백을 포함하는 슬라이딩 모드 제어 실행방법
US5331265A (en) * 1989-12-11 1994-07-19 Fanuc Ltd. Method of executing sliding-mode control including twist feedback
US6084742A (en) * 1994-04-06 2000-07-04 Fujitsu Limited Drive control apparatus for a disk drive
JP2003059216A (ja) * 2001-08-16 2003-02-28 Internatl Business Mach Corp <Ibm> ハード・ディスク・ドライブ、データ記憶再生装置、ヘッド移動制御装置およびヘッド移動制御方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1503971A (en) * 1975-05-15 1978-03-15 Ibm Positioning system for data storage apparatus
US4237502A (en) * 1979-07-10 1980-12-02 Per Sci, Inc. Disk drive system

Also Published As

Publication number Publication date
US4480279A (en) 1984-10-30
JPS57189376A (en) 1982-11-20

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