DE3268718D1 - Improvements in and relating to servo-track position detection systems - Google Patents

Improvements in and relating to servo-track position detection systems

Info

Publication number
DE3268718D1
DE3268718D1 DE8282306595T DE3268718T DE3268718D1 DE 3268718 D1 DE3268718 D1 DE 3268718D1 DE 8282306595 T DE8282306595 T DE 8282306595T DE 3268718 T DE3268718 T DE 3268718T DE 3268718 D1 DE3268718 D1 DE 3268718D1
Authority
DE
Germany
Prior art keywords
servo
relating
position detection
detection systems
track position
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
DE8282306595T
Other languages
English (en)
Inventor
Graham Paul Sellars
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
Burroughs 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 Burroughs Corp filed Critical Burroughs Corp
Application granted granted Critical
Publication of DE3268718D1 publication Critical patent/DE3268718D1/de
Expired 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
    • 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
    • G11B5/59688—Servo signal format patterns or signal processing thereof, e.g. dual, tri, quad, burst signal patterns

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
DE8282306595T 1981-12-22 1982-12-10 Improvements in and relating to servo-track position detection systems Expired DE3268718D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8138635 1981-12-22

Publications (1)

Publication Number Publication Date
DE3268718D1 true DE3268718D1 (en) 1986-03-06

Family

ID=10526783

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282306595T Expired DE3268718D1 (en) 1981-12-22 1982-12-10 Improvements in and relating to servo-track position detection systems

Country Status (3)

Country Link
EP (1) EP0082645B1 (de)
DE (1) DE3268718D1 (de)
GB (1) GB2112183B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4542428A (en) * 1982-10-01 1985-09-17 Matsushita Electric Industrial Co., Ltd. Disk for measuring off-track quantity of magnetic head, and measuring apparatus using the disk
EP0435255A1 (de) * 1989-12-27 1991-07-03 Nec Corporation Magnetplattengerät
DE69628756T2 (de) * 1996-12-20 2004-06-03 Deutsche Thomson-Brandt Gmbh Kombinierte longitudinale und transversale Spurnachführung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534344A (en) * 1967-12-21 1970-10-13 Ibm Method and apparatus for recording and detecting information
US3593333A (en) * 1969-11-26 1971-07-13 Ibm Position detection for a track following servo system
US3691543A (en) * 1971-02-08 1972-09-12 Ibm Positioning system including servo track configuration and associated demodulator
GB2054214B (en) * 1979-07-19 1983-04-07 Burroughs Corp Transducer positioning system

Also Published As

Publication number Publication date
EP0082645A1 (de) 1983-06-29
GB2112183B (en) 1985-05-09
GB2112183A (en) 1983-07-13
EP0082645B1 (de) 1986-01-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: EISENFUEHR, G., DIPL.-ING. SPEISER, D., DIPL.-ING. RABUS, W., DR.-ING., PAT.-ANW., 2800 BREMEN

8328 Change in the person/name/address of the agent

Free format text: EISENFUEHR, G., DIPL.-ING. SPEISER, D., DIPL.-ING., PAT.-ANW., 2800 BREMEN

8339 Ceased/non-payment of the annual fee