GB2199442B - Disk driving devices - Google Patents

Disk driving devices

Info

Publication number
GB2199442B
GB2199442B GB8729939A GB8729939A GB2199442B GB 2199442 B GB2199442 B GB 2199442B GB 8729939 A GB8729939 A GB 8729939A GB 8729939 A GB8729939 A GB 8729939A GB 2199442 B GB2199442 B GB 2199442B
Authority
GB
United Kingdom
Prior art keywords
driving devices
disk driving
disk
devices
driving
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
GB8729939A
Other versions
GB2199442A (en
GB8729939D0 (en
Inventor
Tomoo Iizumi
Tooru Kaneko
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.)
Alps Alpine Co Ltd
Original Assignee
Alps 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
Priority claimed from JP31583386A external-priority patent/JPS63168874A/en
Priority claimed from JP61315834A external-priority patent/JPS63168875A/en
Application filed by Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of GB8729939D0 publication Critical patent/GB8729939D0/en
Publication of GB2199442A publication Critical patent/GB2199442A/en
Application granted granted Critical
Publication of GB2199442B publication Critical patent/GB2199442B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1883—Methods for assignment of alternate areas for defective areas
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • 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
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
GB8729939A 1986-12-29 1987-12-23 Disk driving devices Expired - Lifetime GB2199442B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP31583386A JPS63168874A (en) 1986-12-29 1986-12-29 Head position detecting method
JP61315834A JPS63168875A (en) 1986-12-29 1986-12-29 Disk drive device

Publications (3)

Publication Number Publication Date
GB8729939D0 GB8729939D0 (en) 1988-02-03
GB2199442A GB2199442A (en) 1988-07-06
GB2199442B true GB2199442B (en) 1991-01-09

Family

ID=26568442

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8729939A Expired - Lifetime GB2199442B (en) 1986-12-29 1987-12-23 Disk driving devices

Country Status (2)

Country Link
DE (1) DE3744340A1 (en)
GB (1) GB2199442B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2326006A1 (en) * 1975-09-26 1977-04-22 Thomson Brandt PROCEDURE FOR CONTROLLING THE START-UP AND STOPPING OF THE READING OF A RECORDING MEDIA, RECORDING MEDIA AND APPARATUS FOR IMPLEMENTING THIS PROCESS
GB1516239A (en) * 1976-12-09 1978-06-28 Burroughs Corp Positioning system and method particularly useful for magnetic disc drives
JPS63144454A (en) * 1986-12-08 1988-06-16 Alps Electric Co Ltd Information recording disk

Also Published As

Publication number Publication date
DE3744340A1 (en) 1988-07-07
GB2199442A (en) 1988-07-06
GB8729939D0 (en) 1988-02-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921223