NL276507A - - Google Patents
Info
- Publication number
- NL276507A NL276507A NL276507DA NL276507A NL 276507 A NL276507 A NL 276507A NL 276507D A NL276507D A NL 276507DA NL 276507 A NL276507 A NL 276507A
- Authority
- NL
- Netherlands
Links
Classifications
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- 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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect
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- 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
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- 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
- G11B11/105—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 using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10532—Heads
- G11B11/10541—Heads for reproducing
- G11B11/10543—Heads for reproducing using optical beam of radiation
- G11B11/10547—Heads for reproducing using optical beam of radiation interacting with the magnetisation of an intermediate transfer element, e.g. magnetic film, included in the head
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- 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
- G11B5/86—Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers
- G11B5/865—Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers by contact "printing"
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US100079A US3229273A (en) | 1961-04-03 | 1961-04-03 | Magnetic reproduce system and method |
Publications (1)
Publication Number | Publication Date |
---|---|
NL276507A true NL276507A (de) |
Family
ID=22278004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL276507D NL276507A (de) | 1961-04-03 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3229273A (de) |
DE (1) | DE1255720B (de) |
GB (1) | GB926833A (de) |
NL (1) | NL276507A (de) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3380334A (en) * | 1963-10-29 | 1968-04-30 | Control Data Corp | Optical scanning system using specular reflections |
US3422269A (en) * | 1964-04-10 | 1969-01-14 | Honeywell Inc | Resonant kerr effect electromagnetic wave modulators |
US3474428A (en) * | 1965-01-29 | 1969-10-21 | Magnavox Co | Magneto-optical reproducer |
US3451740A (en) * | 1965-04-19 | 1969-06-24 | Massachusetts Inst Technology | Magneto-optical light switch enhanced by optical impedance matching dielectric overlayers |
US3474431A (en) * | 1966-02-17 | 1969-10-21 | Magnavox Co | Magneto-optical transducer |
US3465322A (en) * | 1966-06-20 | 1969-09-02 | Ibm | Transducer utilizing electro-optic effect |
US3701133A (en) * | 1967-05-05 | 1972-10-24 | Philip Smaller | Modulated magnetooptic readout system |
US3592964A (en) * | 1967-12-06 | 1971-07-13 | Du Pont | Converting images recorded on a moving magnetic medium to stationary images |
US3545840A (en) * | 1968-07-29 | 1970-12-08 | Magnavox Co | Enhanced transverse kerr magneto-optical transducer |
US3571583A (en) * | 1968-09-30 | 1971-03-23 | Us Navy | Multichannel |
US3535688A (en) * | 1969-05-09 | 1970-10-20 | Du Pont | Magnetic buffer storage |
US3521262A (en) * | 1969-05-28 | 1970-07-21 | Sperry Rand Corp | Magneto-optic readout of multi-state analog storage magnetic film elements |
US3769465A (en) * | 1969-08-18 | 1973-10-30 | Ibm | Electronic servo in magnetic recording readout |
US3629517A (en) * | 1969-09-29 | 1971-12-21 | Ibm | Method and apparatus for magneto-optical reading of superimposed magnetic recordings |
US3668671A (en) * | 1969-12-15 | 1972-06-06 | Ibm | Method and apparatus for reading superimposed magnetic recordings |
US3626394A (en) * | 1970-04-09 | 1971-12-07 | Magnavox Co | Magneto-optical system |
US3696352A (en) * | 1970-11-25 | 1972-10-03 | Robatron Veb K | Magneto-optical readout beam shifted as a function of information |
US3739362A (en) * | 1971-03-25 | 1973-06-12 | Magnavox Co | Magneto-optical signal processor |
DE2148650A1 (de) * | 1971-09-29 | 1973-04-05 | Siemens Ag | Verfahren zur phasenrichtigen integration von radar-pulsfolgen |
US4425023A (en) * | 1980-01-31 | 1984-01-10 | Canon Kabushiki Kaisha | Beam spot scanning device |
JPS5769541A (en) * | 1980-10-17 | 1982-04-28 | Olympus Optical Co Ltd | Recording medium and recording and reproducing system using sand medium |
JPH0670858B2 (ja) * | 1983-05-25 | 1994-09-07 | ソニー株式会社 | 光磁気記録媒体とその製法 |
US4594699A (en) * | 1983-06-20 | 1986-06-10 | Datatape Incorporated | Faraday-effect magneto-optic transducer apparatus of a rotary form |
WO1985000239A1 (en) * | 1983-06-20 | 1985-01-17 | Datatape Incorporated | Apparatus for reading magnetically recorded information |
CA1254385A (en) * | 1985-07-26 | 1989-05-23 | Noboru Sato | Magneto-optical recording medium having amorphous artificially layered structure of rare earth element and transition metal element |
FR2696037B1 (fr) * | 1992-09-18 | 1994-11-04 | Thomson Csf | Dispositif de lecture magnétique. |
CA2137062A1 (en) * | 1993-12-08 | 1995-06-09 | Takumi Shimamori | Magneto-optical recording and reading-out method |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE662417C (de) * | ||||
DE1007091B (de) * | 1943-07-12 | 1957-04-25 | Dr Gerhard Dirks | Verfahren zur Steuerung von Rechen-, Schreib-, Sortier-, Vergleichs- und sonstigen Geraeten |
US2617705A (en) * | 1948-03-25 | 1952-11-11 | Engineering Res Associates Inc | Data storage apparatus |
US2890288A (en) * | 1954-12-01 | 1959-06-09 | Rca Corp | Magnetic recording |
NL224830A (de) * | 1957-06-12 | |||
NL233342A (de) * | 1957-11-18 | |||
US3174140A (en) * | 1959-07-01 | 1965-03-16 | Ibm | Magneto-optical recording and readout device |
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0
- NL NL276507D patent/NL276507A/xx unknown
-
1961
- 1961-04-03 US US100079A patent/US3229273A/en not_active Expired - Lifetime
-
1962
- 1962-03-20 GB GB10730/62A patent/GB926833A/en not_active Expired
- 1962-03-29 DE DEA39838A patent/DE1255720B/de active Pending
Also Published As
Publication number | Publication date |
---|---|
GB926833A (en) | 1963-05-22 |
DE1255720B (de) | 1967-12-07 |
US3229273A (en) | 1966-01-11 |