DE2055911A1 - - Google Patents
Info
- Publication number
- DE2055911A1 DE2055911A1 DE19702055911 DE2055911A DE2055911A1 DE 2055911 A1 DE2055911 A1 DE 2055911A1 DE 19702055911 DE19702055911 DE 19702055911 DE 2055911 A DE2055911 A DE 2055911A DE 2055911 A1 DE2055911 A1 DE 2055911A1
- Authority
- DE
- Germany
- Prior art keywords
- transmission
- recordings
- magnetic
- magnetic layer
- magneto
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims description 37
- 238000012546 transfer Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 7
- 230000015654 memory Effects 0.000 claims description 7
- 230000005415 magnetization Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000010287 polarization Effects 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000005374 Kerr effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- 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
-
- 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
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US88488069A | 1969-12-15 | 1969-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2055911A1 true DE2055911A1 (enExample) | 1971-06-16 |
Family
ID=25385619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19702055911 Pending DE2055911A1 (enExample) | 1969-12-15 | 1970-11-13 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3668671A (enExample) |
| JP (1) | JPS506771B1 (enExample) |
| CA (1) | CA922801A (enExample) |
| DE (1) | DE2055911A1 (enExample) |
| FR (1) | FR2071761A5 (enExample) |
| GB (1) | GB1316448A (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4101947A (en) * | 1976-10-04 | 1978-07-18 | Eastman Kodak Company | Narrow track magnetic-head recorder |
| JPS57158004A (en) * | 1981-03-24 | 1982-09-29 | Toshiba Corp | Magnetic transfer recorder |
| US4562502A (en) * | 1982-04-28 | 1985-12-31 | Tdk Corporation | Optical reproducing system |
| 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL276507A (enExample) * | 1961-04-03 | |||
| US3513457A (en) * | 1962-12-12 | 1970-05-19 | Magnavox Co | Magneto-optical transducing system |
| US3475738A (en) * | 1966-05-26 | 1969-10-28 | Ibm | Magneto-optical data storage |
-
1969
- 1969-12-15 US US884880A patent/US3668671A/en not_active Expired - Lifetime
-
1970
- 1970-10-06 FR FR7036827A patent/FR2071761A5/fr not_active Expired
- 1970-10-22 JP JP45092448A patent/JPS506771B1/ja active Pending
- 1970-11-06 CA CA097540A patent/CA922801A/en not_active Expired
- 1970-11-13 GB GB5402470A patent/GB1316448A/en not_active Expired
- 1970-11-13 DE DE19702055911 patent/DE2055911A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS506771B1 (enExample) | 1975-03-18 |
| GB1316448A (en) | 1973-05-09 |
| FR2071761A5 (enExample) | 1971-09-17 |
| CA922801A (en) | 1973-03-13 |
| US3668671A (en) | 1972-06-06 |
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