GB883936A - Apparatus for reading information magnetically recorded on a record medium - Google Patents

Apparatus for reading information magnetically recorded on a record medium

Info

Publication number
GB883936A
GB883936A GB30964/60A GB3096460A GB883936A GB 883936 A GB883936 A GB 883936A GB 30964/60 A GB30964/60 A GB 30964/60A GB 3096460 A GB3096460 A GB 3096460A GB 883936 A GB883936 A GB 883936A
Authority
GB
United Kingdom
Prior art keywords
light
polarization
record
polarized
recorded
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
GB30964/60A
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
National Cash Register 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 Corp, National Cash Register Co filed Critical NCR Corp
Publication of GB883936A publication Critical patent/GB883936A/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
    • 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
GB30964/60A 1959-09-25 1960-09-08 Apparatus for reading information magnetically recorded on a record medium Expired GB883936A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84240759A 1959-09-25 1959-09-25
US465817A US3394360A (en) 1959-09-25 1965-05-24 Magneto-optical translator

Publications (1)

Publication Number Publication Date
GB883936A true GB883936A (en) 1961-12-06

Family

ID=27041431

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30964/60A Expired GB883936A (en) 1959-09-25 1960-09-08 Apparatus for reading information magnetically recorded on a record medium

Country Status (4)

Country Link
US (1) US3394360A (US20030204162A1-20031030-M00001.png)
CH (1) CH370118A (US20030204162A1-20031030-M00001.png)
GB (1) GB883936A (US20030204162A1-20031030-M00001.png)
NL (1) NL255698A (US20030204162A1-20031030-M00001.png)

Cited By (1)

* 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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472575A (en) * 1966-11-04 1969-10-14 Ampex Magnetic storage medium for enhancing magneto-optic readout
US3590249A (en) * 1968-10-02 1971-06-29 Ibm Optical read system
DE1930907C3 (de) * 1969-06-18 1974-04-11 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Magneto-optisches Speicherelement
US3639744A (en) * 1969-12-17 1972-02-01 Sperry Rand Corp Magnetooptic phase correlator
JPS55153142A (en) * 1979-05-15 1980-11-28 Olympus Optical Co Ltd Magnetic recording and reproducing device
JPS5778652A (en) * 1980-11-01 1982-05-17 Daido Steel Co Ltd Thermal magnetic recording carrier and thermal magnetic recording system
CA1190321A (en) * 1981-10-29 1985-07-09 Toshihisa Deguchi Magneto-optical head assembly
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

Cited By (1)

* 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

Also Published As

Publication number Publication date
CH370118A (fr) 1963-06-30
NL255698A (US20030204162A1-20031030-M00001.png)
US3394360A (en) 1968-07-23

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