JPS57501305A - - Google Patents

Info

Publication number
JPS57501305A
JPS57501305A JP55502516A JP50251680A JPS57501305A JP S57501305 A JPS57501305 A JP S57501305A JP 55502516 A JP55502516 A JP 55502516A JP 50251680 A JP50251680 A JP 50251680A JP S57501305 A JPS57501305 A JP S57501305A
Authority
JP
Japan
Prior art keywords
marking
recorded
track
information
segment
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
JP55502516A
Other languages
English (en)
Japanese (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
Publication of JPS57501305A publication Critical patent/JPS57501305A/ja
Pending 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
    • G11B5/58—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
    • G11B5/59633—Servo formatting
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0014—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
    • G11B23/0021—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
    • G11B23/0028—Details
    • G11B23/0035—Details means incorporated in the disc, e.g. hub, to enable its guiding, loading or driving

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Control Of Position Or Direction (AREA)
  • Magnetic Record Carriers (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
JP55502516A 1980-08-05 1980-08-05 Pending JPS57501305A (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/HU1980/000002 WO1981001903A1 (en) 1980-08-05 1980-08-05 A method for recording track marking information on flexible magnetical information carrier discs and apparatus for fine adjustment of the position of a reading head

Publications (1)

Publication Number Publication Date
JPS57501305A true JPS57501305A (enExample) 1982-07-22

Family

ID=10980363

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55502516A Pending JPS57501305A (enExample) 1980-08-05 1980-08-05

Country Status (9)

Country Link
EP (1) EP0057178B1 (enExample)
JP (1) JPS57501305A (enExample)
AT (1) ATE20984T1 (enExample)
AU (1) AU6482180A (enExample)
BR (1) BR8009099A (enExample)
DE (1) DE3071667D1 (enExample)
DK (1) DK135182A (enExample)
NO (1) NO821116L (enExample)
WO (1) WO1981001903A1 (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115360A (en) * 1982-05-10 1992-05-19 Digital Equipment Corporation Embedded burst demodulation and tracking error generation
US5115359A (en) * 1982-05-10 1992-05-19 Digital Equipment Corporation Fault tolerant frame, guardband and index detection methods
US5099367A (en) * 1982-05-10 1992-03-24 Digital Equipment Corporation Method of automatic gain control basis selection and method of half-track servoing
US5202802A (en) * 1982-05-10 1993-04-13 Digital Equipment Corporation Methods of writing and detecting dibit servo encoding
US5153787A (en) * 1982-05-10 1992-10-06 Digital Equipment Corporation Combination embedded and dedicated servo system including embedded servo waiting
US5109307A (en) * 1982-05-10 1992-04-28 Digital Equipment Corporation Continuous-plus-embedded servo data position control system for magnetic disk device
US5220468A (en) * 1982-05-10 1993-06-15 Digital Equipment Corporation Disk drive with constant bandwidth automatic gain control
US5187619A (en) * 1982-05-10 1993-02-16 Digital Equipment Corporation High speed switched automatic gain control
US5136440A (en) * 1982-05-10 1992-08-04 Digital Equipment Corporation Track identification and counting in a disk drive positioning system
US5095471A (en) * 1982-05-10 1992-03-10 Digital Equipment Corporation Velocity estimator in a disk drive positioning system
US5153786A (en) * 1982-05-10 1992-10-06 Digital Equipment Corporation Extended range servo system for positioning a disk drive head over a selected track
US6333833B1 (en) * 1994-07-14 2001-12-25 Nomai S.A. Hard disk platter assembly with plastic hub for use in a removable cartridge

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185972A (en) * 1961-10-10 1965-05-25 Ibm Transducer positioning system utilizing record with interspersed data and positioning information
GB987357A (en) * 1962-11-30 1965-03-24 Ibm Memory system employing a magnetic recording medium
GB1296730A (enExample) * 1969-09-18 1972-11-15
US3840893A (en) * 1972-11-02 1974-10-08 Rca Corp Track following servo system
US3860958A (en) * 1973-02-27 1975-01-14 Ibm Offset read/write magnetic recording system with guard band
US3864741A (en) * 1973-06-28 1975-02-04 Ibm Servo channel equalization network
US3838457A (en) * 1973-07-05 1974-09-24 Ibm Track seeking and following servo system
US3864740A (en) * 1973-11-05 1975-02-04 Information Storage Systems Track following servo system
US3924268A (en) * 1974-08-05 1975-12-02 Ibm High density track follower control system for magnetic disk file
US4027338A (en) * 1975-04-28 1977-05-31 Burroughs Corporation Transducer positioning system for providing coarse positioning
US4048660A (en) * 1975-12-23 1977-09-13 International Business Machines Corporation Record track following and seeking
US4188646A (en) * 1978-05-30 1980-02-12 Sperry Rand Corporation Sectorized data path following servo system

Also Published As

Publication number Publication date
AU6482180A (en) 1981-07-22
EP0057178A1 (en) 1982-08-11
BR8009099A (pt) 1982-07-13
WO1981001903A1 (en) 1981-07-09
NO821116L (no) 1982-04-02
DK135182A (da) 1982-03-24
ATE20984T1 (de) 1986-08-15
EP0057178B1 (en) 1986-07-23
DE3071667D1 (en) 1986-08-28
EP0057178A4 (en) 1983-03-23

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