FR2071802A5 - - Google Patents

Info

Publication number
FR2071802A5
FR2071802A5 FR7037892A FR7037892A FR2071802A5 FR 2071802 A5 FR2071802 A5 FR 2071802A5 FR 7037892 A FR7037892 A FR 7037892A FR 7037892 A FR7037892 A FR 7037892A FR 2071802 A5 FR2071802 A5 FR 2071802A5
Authority
FR
France
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
FR7037892A
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of FR2071802A5 publication Critical patent/FR2071802A5/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
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
FR7037892A 1969-12-22 1970-10-13 Expired FR2071802A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88724469A 1969-12-22 1969-12-22

Publications (1)

Publication Number Publication Date
FR2071802A5 true FR2071802A5 (fr) 1971-09-17

Family

ID=25390749

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7037892A Expired FR2071802A5 (fr) 1969-12-22 1970-10-13

Country Status (5)

Country Link
US (1) US3662364A (fr)
JP (1) JPS4933647B1 (fr)
DE (1) DE2050144A1 (fr)
FR (1) FR2071802A5 (fr)
GB (1) GB1326420A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176380A (en) * 1978-01-09 1979-11-27 International Business Machines Corporation Adaptive speed/interblock gap control for tape drive
FR2514913B1 (fr) * 1981-10-16 1986-07-04 Bull Sa Dispositif opto-electronique de lecture d'informations contenues sur un support magnetique
US10802085B2 (en) 2018-12-11 2020-10-13 Vulcan Inc. Magneto optic disk imager

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL236292A (fr) * 1958-02-19
US2909972A (en) * 1958-09-15 1959-10-27 Ibm Display apparatus employing electro-optical devices
US3516080A (en) * 1967-07-26 1970-06-02 Massachusetts Inst Technology Magneto-optical memory sensing using thermal modulation

Also Published As

Publication number Publication date
JPS4933647B1 (fr) 1974-09-09
DE2050144A1 (de) 1971-06-24
US3662364A (en) 1972-05-09
GB1326420A (en) 1973-08-15

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Legal Events

Date Code Title Description
ST Notification of lapse