CH392618A - Dispositif d'enregistrement magnétique et de reproduction - Google Patents

Dispositif d'enregistrement magnétique et de reproduction

Info

Publication number
CH392618A
CH392618A CH582762A CH582762A CH392618A CH 392618 A CH392618 A CH 392618A CH 582762 A CH582762 A CH 582762A CH 582762 A CH582762 A CH 582762A CH 392618 A CH392618 A CH 392618A
Authority
CH
Switzerland
Prior art keywords
magnetic recording
reproducing device
reproducing
recording
magnetic
Prior art date
Application number
CH582762A
Other languages
English (en)
French (fr)
Original Assignee
Ncr Co
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 Ncr Co filed Critical Ncr Co
Publication of CH392618A publication Critical patent/CH392618A/fr

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
    • G11C13/06—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using magneto-optical elements
    • 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
    • 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
CH582762A 1961-05-19 1962-05-15 Dispositif d'enregistrement magnétique et de reproduction CH392618A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US111267A US3228015A (en) 1961-05-19 1961-05-19 Magneto-optic recording system

Publications (1)

Publication Number Publication Date
CH392618A true CH392618A (fr) 1965-05-31

Family

ID=22337496

Family Applications (1)

Application Number Title Priority Date Filing Date
CH582762A CH392618A (fr) 1961-05-19 1962-05-15 Dispositif d'enregistrement magnétique et de reproduction

Country Status (6)

Country Link
US (1) US3228015A (en:Method)
CH (1) CH392618A (en:Method)
DE (1) DE1292191B (en:Method)
GB (1) GB939504A (en:Method)
NL (1) NL278624A (en:Method)
SE (1) SE317713B (en:Method)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3284785A (en) * 1963-07-16 1966-11-08 Ibm Magneto-optic readout detector
US3421154A (en) * 1965-08-09 1969-01-07 Bell Telephone Labor Inc Optical memory system
US3465322A (en) * 1966-06-20 1969-09-02 Ibm Transducer utilizing electro-optic effect
US3508226A (en) * 1967-11-29 1970-04-21 Sperry Rand Corp Controlled magnetic easy axis dispersion in magnetizable elements
US3590249A (en) * 1968-10-02 1971-06-29 Ibm Optical read system
US3573767A (en) * 1968-11-27 1971-04-06 Gen Electric Electron beam readout of magnetic storage disc
US5175725A (en) * 1972-08-25 1992-12-29 Thomson-Csf Optical disk arrangement with closed contours whose entire extent represents information
FR2197495A5 (en:Method) * 1972-08-25 1974-03-22 Thomson Csf
US5182743A (en) * 1972-08-25 1993-01-26 Thomson-Csf Optical disk arrangement with diffractive tracks allowing positional control
US4424580A (en) 1981-05-06 1984-01-03 Precision Echo Method and apparatus for generating electron spin reversal in ferrimagnetic material
US4569881A (en) * 1983-05-17 1986-02-11 Minnesota Mining And Manufacturing Company Multi-layer amorphous magneto optical recording medium
DE3665372D1 (en) * 1985-05-31 1989-10-05 Siemens Ag Optical system for guiding the read-out beam in a magneto-optical memory
US5153868A (en) * 1988-02-26 1992-10-06 Sumitomo Metal Industries, Ltd. Magneto-optic recording and regenerating device
US4962492A (en) * 1988-04-29 1990-10-09 Laser Magnetic Storage International Company Magneto-optic data recording system, actuating device therefor and method of providing same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3030612A (en) * 1956-12-07 1962-04-17 Sperry Rand Corp Magnetic apparatus and methods
NL224830A (en:Method) * 1957-06-12
NL233342A (en:Method) * 1957-11-18
US2998746A (en) * 1959-10-13 1961-09-05 Gievers John George Angular measurement system

Also Published As

Publication number Publication date
DE1292191B (de) 1969-04-10
US3228015A (en) 1966-01-04
NL278624A (en:Method)
SE317713B (en:Method) 1969-11-24
GB939504A (en) 1963-10-16

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