DE69014320D1 - Auswischbares optisches Aufzeichnungsmedium und Verfahren zum Schreiben, Lesen und/oder Auswischen in diesem Medium. - Google Patents
Auswischbares optisches Aufzeichnungsmedium und Verfahren zum Schreiben, Lesen und/oder Auswischen in diesem Medium.Info
- Publication number
- DE69014320D1 DE69014320D1 DE69014320T DE69014320T DE69014320D1 DE 69014320 D1 DE69014320 D1 DE 69014320D1 DE 69014320 T DE69014320 T DE 69014320T DE 69014320 T DE69014320 T DE 69014320T DE 69014320 D1 DE69014320 D1 DE 69014320D1
- Authority
- DE
- Germany
- Prior art keywords
- medium
- wiping
- writing
- reading
- optical recording
- 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
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
- G11B7/245—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing a polymeric component
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
- G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
- G11B7/247—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes
- G11B7/2472—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes cyanine
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
- G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
- G11B7/248—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes porphines; azaporphines, e.g. phthalocyanines
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1005889A JPH02187390A (ja) | 1989-01-17 | 1989-01-17 | 消去可能な光学情報記録媒体および情報の記録・消去方法 |
JP1071999A JP2771231B2 (ja) | 1989-03-27 | 1989-03-27 | 消去可能な光学情報記録媒体および情報の記録・消去方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69014320D1 true DE69014320D1 (de) | 1995-01-12 |
DE69014320T2 DE69014320T2 (de) | 1995-04-06 |
Family
ID=26339915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69014320T Expired - Fee Related DE69014320T2 (de) | 1989-01-17 | 1990-01-05 | Auswischbares optisches Aufzeichnungsmedium und Verfahren zum Schreiben, Lesen und/oder Auswischen in diesem Medium. |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0379276B1 (de) |
DE (1) | DE69014320T2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3004328B2 (ja) * | 1990-08-22 | 2000-01-31 | 帝人株式会社 | 書換え可能な有機光記録媒体 |
US5464673A (en) * | 1991-08-08 | 1995-11-07 | Hitachi Chemical Co., Ltd. | Information recording medium having recording layer with organic polymer and dye contained therein |
US5326660A (en) * | 1993-03-29 | 1994-07-05 | Sri International | Erasable optical recording media |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07118090B2 (ja) * | 1983-08-22 | 1995-12-18 | オプティカル デ−タ インコ−ポレ−テッド | 消去可能光学デ−タ記憶媒体および該媒体のデ−タ記録方法 |
US4791023A (en) * | 1984-07-07 | 1988-12-13 | Fuji Photo Film Co., Ltd. | Infrared absorbent and optical material using the same |
US4816386A (en) * | 1986-01-13 | 1989-03-28 | Toray Industries, Inc. | Near-infrared sensitive phthalocyanine-polymer compositions |
US4825430A (en) * | 1986-12-19 | 1989-04-25 | Optical Data, Inc. | Erasable optical data storage medium having an embedded servo track and a subsurface recording interface |
US4896314A (en) * | 1988-04-19 | 1990-01-23 | Optical Data, Inc. | Bump-forming media including thin intermediate reflective layer and methods for writing, reading, and erasing same |
-
1990
- 1990-01-05 EP EP19900300137 patent/EP0379276B1/de not_active Expired - Lifetime
- 1990-01-05 DE DE69014320T patent/DE69014320T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0379276A3 (de) | 1991-06-12 |
EP0379276A2 (de) | 1990-07-25 |
DE69014320T2 (de) | 1995-04-06 |
EP0379276B1 (de) | 1994-11-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |