FR1487821A - Mémoire magnétique dynamique - Google Patents

Mémoire magnétique dynamique

Info

Publication number
FR1487821A
FR1487821A FR70971A FR70971A FR1487821A FR 1487821 A FR1487821 A FR 1487821A FR 70971 A FR70971 A FR 70971A FR 70971 A FR70971 A FR 70971A FR 1487821 A FR1487821 A FR 1487821A
Authority
FR
France
Prior art keywords
magnetic memory
dynamic magnetic
dynamic
memory
magnetic
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
FR70971A
Other languages
English (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.)
General Precision Inc
Original Assignee
General Precision Inc
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 General Precision Inc filed Critical General Precision Inc
Application granted granted Critical
Publication of FR1487821A publication Critical patent/FR1487821A/fr
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
    • 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
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
FR70971A 1965-10-22 1966-07-26 Mémoire magnétique dynamique Expired FR1487821A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50135265A 1965-10-22 1965-10-22

Publications (1)

Publication Number Publication Date
FR1487821A true FR1487821A (fr) 1967-07-07

Family

ID=23993198

Family Applications (1)

Application Number Title Priority Date Filing Date
FR70971A Expired FR1487821A (fr) 1965-10-22 1966-07-26 Mémoire magnétique dynamique

Country Status (3)

Country Link
US (1) US3491350A (fr)
FR (1) FR1487821A (fr)
GB (1) GB1121404A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855622A (en) * 1973-01-04 1974-12-17 Siemens Corp Apparatus for loading and unloading a head assembly in a data storage system
US4202020A (en) * 1978-08-31 1980-05-06 International Business Machines Corporation Magnetic head load control system
EP0153793B1 (fr) * 1984-01-23 1990-01-03 Unisys Corporation Moyen pour amener des tetes magnétiques flottantes dans leur position de travail et pour les en écarter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124660A (en) * 1960-03-07 1964-03-10 cmner
US3320599A (en) * 1963-06-07 1967-05-16 Burroughs Corp Mounting and actuating apparatus for a magnetic head

Also Published As

Publication number Publication date
US3491350A (en) 1970-01-20
GB1121404A (en) 1968-07-24

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