DE3811374C2 - - Google Patents
Info
- Publication number
- DE3811374C2 DE3811374C2 DE19883811374 DE3811374A DE3811374C2 DE 3811374 C2 DE3811374 C2 DE 3811374C2 DE 19883811374 DE19883811374 DE 19883811374 DE 3811374 A DE3811374 A DE 3811374A DE 3811374 C2 DE3811374 C2 DE 3811374C2
- Authority
- DE
- Germany
- Prior art keywords
- layer
- data storage
- storage system
- control layer
- magnetization
- 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 - Fee Related
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
- 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
- G11B11/10502—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 characterised by the transducing operation to be executed
- G11B11/10504—Recording
- G11B11/10506—Recording by modulating only the light beam of the transducer
-
- 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
- G11B11/10502—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 characterised by the transducing operation to be executed
- G11B11/10517—Overwriting or erasing
- G11B11/10519—Direct overwriting, i.e. performing erasing and recording using the same transducing means
- G11B11/10521—Direct overwriting, i.e. performing erasing and recording using the same transducing means using a single light spot
-
- 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
- G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
- G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19883811374 DE3811374A1 (de) | 1988-04-05 | 1988-04-05 | Datenspeichersystem und verfahren zu seiner herstellung |
EP19890105284 EP0336237A3 (de) | 1988-04-05 | 1989-03-23 | Datenspeichersystem und Verfahren zu seiner Herstellung |
JP8562489A JPH01307045A (ja) | 1988-04-05 | 1989-04-03 | データメモリシステムおよびその製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19883811374 DE3811374A1 (de) | 1988-04-05 | 1988-04-05 | Datenspeichersystem und verfahren zu seiner herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3811374A1 DE3811374A1 (de) | 1989-10-19 |
DE3811374C2 true DE3811374C2 (US20100012521A1-20100121-C00001.png) | 1992-06-11 |
Family
ID=6351396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19883811374 Granted DE3811374A1 (de) | 1988-04-05 | 1988-04-05 | Datenspeichersystem und verfahren zu seiner herstellung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0336237A3 (US20100012521A1-20100121-C00001.png) |
JP (1) | JPH01307045A (US20100012521A1-20100121-C00001.png) |
DE (1) | DE3811374A1 (US20100012521A1-20100121-C00001.png) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH056590A (ja) * | 1991-06-28 | 1993-01-14 | Toshiba Corp | 光磁気記録装置 |
JP2763419B2 (ja) * | 1991-07-08 | 1998-06-11 | シャープ株式会社 | 光磁気記録媒体 |
KR960015209B1 (ko) * | 1991-10-21 | 1996-11-01 | 샤프 가부시끼가이샤 | 광자기 기록 방법 및 광자기 메모리 소자 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4126494A (en) * | 1975-10-20 | 1978-11-21 | Kokusai Denshin Denwa Kabushiki Kaisha | Magnetic transfer record film |
JP2521908B2 (ja) * | 1985-06-11 | 1996-08-07 | 株式会社ニコン | オ―バ―ライト可能な光磁気記録方法、それに使用される光磁気記録装置及び光磁気記録媒体、並びに変調方法、変調装置及び光磁気記録媒体 |
US4794560A (en) * | 1985-09-30 | 1988-12-27 | International Business Machines Corporation | Eraseable self biasing thermal magneto-optic medium |
US4649519A (en) * | 1985-09-30 | 1987-03-10 | International Business Machines Corporation | Self biasing thermal magneto-optic medium |
US4694358A (en) * | 1985-10-28 | 1987-09-15 | Kerdix, Inc. | Magneto-optic recording structure and method |
DE3752222T2 (de) * | 1986-07-08 | 1999-03-25 | Canon Kk | Magnetoptisches Aufzeichnungsmedium mit der Möglichkeit des Überschreibens mit zwei oder mehr Magnetschichten und dieses Medium verwendende Aufzeichnungsmethode |
-
1988
- 1988-04-05 DE DE19883811374 patent/DE3811374A1/de active Granted
-
1989
- 1989-03-23 EP EP19890105284 patent/EP0336237A3/de not_active Withdrawn
- 1989-04-03 JP JP8562489A patent/JPH01307045A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0336237A3 (de) | 1991-10-30 |
JPH01307045A (ja) | 1989-12-12 |
DE3811374A1 (de) | 1989-10-19 |
EP0336237A2 (de) | 1989-10-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |