DE68927731D1 - Optischer Datenaufzeichnungsträger sowie zugehöriges Aufzeichnungs- und Wiedergabeverfahren - Google Patents
Optischer Datenaufzeichnungsträger sowie zugehöriges Aufzeichnungs- und WiedergabeverfahrenInfo
- Publication number
- DE68927731D1 DE68927731D1 DE68927731T DE68927731T DE68927731D1 DE 68927731 D1 DE68927731 D1 DE 68927731D1 DE 68927731 T DE68927731 T DE 68927731T DE 68927731 T DE68927731 T DE 68927731T DE 68927731 D1 DE68927731 D1 DE 68927731D1
- Authority
- DE
- Germany
- Prior art keywords
- optical data
- playback process
- recording medium
- data recording
- 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 - Lifetime
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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
- G11B7/0051—Reproducing involving phase depth effects
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
- G11B7/00455—Recording involving reflectivity, absorption or colour changes
-
- 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
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63227015A JPH07105063B2 (ja) | 1988-09-09 | 1988-09-09 | 光学的情報記録媒体 |
| JP63266397A JPH07105064B2 (ja) | 1988-10-21 | 1988-10-21 | 光学的情報記録媒体 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE68927731D1 true DE68927731D1 (de) | 1997-03-13 |
| DE68927731T2 DE68927731T2 (de) | 1997-07-31 |
Family
ID=26527462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1989627731 Expired - Lifetime DE68927731T2 (de) | 1988-09-09 | 1989-09-08 | Optischer Datenaufzeichnungsträger sowie zugehöriges Aufzeichnungs- und Wiedergabeverfahren |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0360466B1 (de) |
| DE (1) | DE68927731T2 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5159650A (en) * | 1989-06-30 | 1992-10-27 | Matsushita Electric Industrial Co., Ltd. | Optical disk apparatus for recording and reproducing ultra-high density signals |
| EP0431194B1 (de) * | 1989-06-30 | 1994-11-23 | Matsushita Electric Industrial Co., Ltd. | Optische plattenanordnung |
| JP3080739B2 (ja) * | 1991-12-20 | 2000-08-28 | 日本電気株式会社 | 光学的情報記録媒体および光学的情報記録消去再生方法 |
| DE69322443T2 (de) * | 1992-06-17 | 1999-08-05 | Matsushita Electric Ind Co Ltd | Optisches Informationsaufzeichnungsmedium |
| JP2812181B2 (ja) * | 1993-06-17 | 1998-10-22 | 日本電気株式会社 | 光学的情報記録媒体 |
| JP2850754B2 (ja) * | 1994-05-20 | 1999-01-27 | 日本電気株式会社 | 相変化型光ディスク |
| AU2001288125A1 (en) * | 2000-09-29 | 2002-04-15 | Matsushita Electric Industrial Co., Ltd. | Optical information recording medium and method of reproducing the record |
| CN100452185C (zh) * | 2003-10-20 | 2009-01-14 | 皇家飞利浦电子股份有限公司 | 在光学数据载体上写入光学可读数据的方法和装置 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0130026B1 (de) * | 1983-06-27 | 1990-05-02 | Optical Disc Corporation | Optisches Dünnfilm-Aufzeichnungsmedium mit hohem Kontrast |
| JPS60209942A (ja) * | 1984-04-02 | 1985-10-22 | Canon Inc | 熱磁気記録媒体 |
| GB8712687D0 (en) * | 1987-05-29 | 1987-07-01 | Holodisc Ltd | Optical data storage |
-
1989
- 1989-09-08 EP EP89309138A patent/EP0360466B1/de not_active Expired - Lifetime
- 1989-09-08 DE DE1989627731 patent/DE68927731T2/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0360466B1 (de) | 1997-01-29 |
| EP0360466A1 (de) | 1990-03-28 |
| DE68927731T2 (de) | 1997-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: PANASONIC CORP., KADOMA, OSAKA, JP |