GB2044483B - Memory disc addressing device - Google Patents

Memory disc addressing device

Info

Publication number
GB2044483B
GB2044483B GB8005287A GB8005287A GB2044483B GB 2044483 B GB2044483 B GB 2044483B GB 8005287 A GB8005287 A GB 8005287A GB 8005287 A GB8005287 A GB 8005287A GB 2044483 B GB2044483 B GB 2044483B
Authority
GB
United Kingdom
Prior art keywords
memory disc
addressing device
disc addressing
memory
disc
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
GB8005287A
Other versions
GB2044483A (en
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB2044483A publication Critical patent/GB2044483A/en
Application granted granted Critical
Publication of GB2044483B publication Critical patent/GB2044483B/en
Expired 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
GB8005287A 1979-02-19 1980-02-15 Memory disc addressing device Expired GB2044483B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7901281A NL7901281A (en) 1979-02-19 1979-02-19 DEVICE FOR DETERMINING TRACK NUMBERS ON A MEMORY DISC.

Publications (2)

Publication Number Publication Date
GB2044483A GB2044483A (en) 1980-10-15
GB2044483B true GB2044483B (en) 1983-01-19

Family

ID=19832658

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8005287A Expired GB2044483B (en) 1979-02-19 1980-02-15 Memory disc addressing device

Country Status (6)

Country Link
JP (1) JPS55113174A (en)
CA (1) CA1152638A (en)
DE (1) DE3004938C2 (en)
FR (1) FR2449321B1 (en)
GB (1) GB2044483B (en)
NL (1) NL7901281A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812533A (en) * 1972-12-22 1974-05-21 Vermont Res Corp Information storage unit transducer positioning system
US4208679A (en) * 1978-02-28 1980-06-17 Digital Equipment Corporation Transducer positioning system for rotating disk drive units

Also Published As

Publication number Publication date
FR2449321B1 (en) 1986-06-20
JPS6239506B2 (en) 1987-08-24
DE3004938A1 (en) 1980-08-28
FR2449321A1 (en) 1980-09-12
GB2044483A (en) 1980-10-15
NL7901281A (en) 1980-08-21
DE3004938C2 (en) 1986-10-09
CA1152638A (en) 1983-08-23
JPS55113174A (en) 1980-09-01

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Legal Events

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

Effective date: 19990215