DE3870765D1 - Feineinstellung fuer plattenspieler. - Google Patents

Feineinstellung fuer plattenspieler.

Info

Publication number
DE3870765D1
DE3870765D1 DE8888902693T DE3870765T DE3870765D1 DE 3870765 D1 DE3870765 D1 DE 3870765D1 DE 8888902693 T DE8888902693 T DE 8888902693T DE 3870765 T DE3870765 T DE 3870765T DE 3870765 D1 DE3870765 D1 DE 3870765D1
Authority
DE
Germany
Prior art keywords
turntable
fine tuning
tuning
fine
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 - Fee Related
Application number
DE8888902693T
Other languages
English (en)
Inventor
R Revels
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.)
Unisys Corp
Original Assignee
Unisys 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 Unisys Corp filed Critical Unisys Corp
Application granted granted Critical
Publication of DE3870765D1 publication Critical patent/DE3870765D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • 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
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • G11B21/106—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
    • 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
    • G11B5/58—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59605—Circuits
DE8888902693T 1987-03-10 1988-02-29 Feineinstellung fuer plattenspieler. Expired - Fee Related DE3870765D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/024,280 US4839751A (en) 1987-03-10 1987-03-10 Track-following servo for disk drive with multiple reference windows and time dependent logic circuitry
PCT/US1988/000543 WO1988007255A1 (en) 1987-03-10 1988-02-29 Fine positioning for disk drive

Publications (1)

Publication Number Publication Date
DE3870765D1 true DE3870765D1 (de) 1992-06-11

Family

ID=21819782

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888902693T Expired - Fee Related DE3870765D1 (de) 1987-03-10 1988-02-29 Feineinstellung fuer plattenspieler.

Country Status (7)

Country Link
US (1) US4839751A (de)
EP (1) EP0304467B1 (de)
JP (1) JP2690539B2 (de)
KR (1) KR920002882B1 (de)
CA (1) CA1292801C (de)
DE (1) DE3870765D1 (de)
WO (1) WO1988007255A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02297702A (ja) * 1989-05-11 1990-12-10 Teac Corp ディスク装置
JPH0337875A (ja) * 1989-07-04 1991-02-19 Toshiba Corp データ記録再生装置のヘッド駆動制御装置
US5153789A (en) * 1990-06-26 1992-10-06 Digital Equipment Corporation Methods and apparatus for optimizing track seeking operations
US5270880A (en) * 1992-04-10 1993-12-14 International Business Machines Corporation Predictive read-write inhibit decision using fuzzy logic
US5570244A (en) * 1995-05-25 1996-10-29 Conner Peripherals, Inc. Method and apparatus for controlling assertion of a write inhibit signal using separate threshold values for each of a plurality of recording surfaces
US7124654B1 (en) 2004-09-30 2006-10-24 Western Digital (Fremont), Inc. Method for determining a microactuator range of movement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513333A (en) * 1982-02-24 1985-04-23 Dymek Corporation Diagnostic recording
US4454549A (en) * 1982-06-28 1984-06-12 International Business Machines Corporation Slant track sector servo
JPS5958645A (ja) * 1982-09-28 1984-04-04 Victor Co Of Japan Ltd テ−プ走行異常検出装置
US4734851A (en) * 1985-04-17 1988-03-29 Dennis Director Write protect control circuit for computer hard disc systems

Also Published As

Publication number Publication date
US4839751A (en) 1989-06-13
EP0304467A1 (de) 1989-03-01
JPH01500627A (ja) 1989-03-01
JP2690539B2 (ja) 1997-12-10
EP0304467B1 (de) 1992-05-06
CA1292801C (en) 1991-12-03
KR890700904A (ko) 1989-04-28
KR920002882B1 (ko) 1992-04-06
WO1988007255A1 (en) 1988-09-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee