IN168113B - - Google Patents
Info
- Publication number
- IN168113B IN168113B IN321/CAL/87A IN321CA1987A IN168113B IN 168113 B IN168113 B IN 168113B IN 321CA1987 A IN321CA1987 A IN 321CA1987A IN 168113 B IN168113 B IN 168113B
- Authority
- IN
- India
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
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/0025—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with cylinders or cylinder-like carriers or cylindrical sections or flat carriers loaded onto a cylindrical surface, e.g. truncated cones
-
- 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
- G11B7/0055—Erasing
-
- 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 |
|---|---|---|---|
| SU863134138A SU1628081A1 (ru) | 1986-02-07 | 1986-02-07 | Носитель информации оптического запоминающего устройства |
| PCT/SU1987/000020 WO1987004842A1 (fr) | 1986-02-07 | 1987-02-05 | Procede d'effacement d'informations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN168113B true IN168113B (fr) | 1991-02-09 |
Family
ID=20928595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN321/CAL/87A IN168113B (fr) | 1986-02-07 | 1987-04-23 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4875204A (fr) |
| EP (1) | EP0256143A4 (fr) |
| JP (1) | JPH0654540B2 (fr) |
| CN (1) | CN1010442B (fr) |
| HU (1) | HU200020B (fr) |
| IN (1) | IN168113B (fr) |
| SU (1) | SU1628081A1 (fr) |
| WO (1) | WO1987004842A1 (fr) |
| YU (1) | YU17887A (fr) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4074282A (en) * | 1976-05-13 | 1978-02-14 | North American Philips Corporation | Radiation-sensitive record with protected sensitive surface |
| JPS6049977B2 (ja) * | 1980-04-23 | 1985-11-06 | 松下電器産業株式会社 | 光デイスク装置 |
| DE3118058A1 (de) * | 1980-05-14 | 1982-03-11 | RCA Corp., 10020 New York, N.Y. | Aufzeichnungstraeger und verfahren zum schreiben einer informationsspur sowie zum loeschen einer in dem traeger gespeicherten information |
| US4331966A (en) * | 1980-10-06 | 1982-05-25 | Storage Technology Corporation | Information storage device and method of forming same |
| JPS5774842A (en) * | 1980-10-24 | 1982-05-11 | Mitsubishi Electric Corp | Optical information recording disk |
| JPS57130243A (en) * | 1981-02-05 | 1982-08-12 | Toshiba Corp | Information storage medium |
| JPS5814335A (ja) * | 1981-07-20 | 1983-01-27 | Tdk Corp | 光記録媒体ならびに情報の書込みおよび消去方法 |
| US4519061A (en) * | 1983-06-27 | 1985-05-21 | Eastman Kodak Company | Sealed optical disk unit, apparatus and method for debris-suppressed recording |
| US4719615A (en) * | 1983-08-22 | 1988-01-12 | Optical Data, Inc. | Erasable optical data storage medium |
-
1986
- 1986-02-07 SU SU863134138A patent/SU1628081A1/ru active
-
1987
- 1987-02-05 WO PCT/SU1987/000020 patent/WO1987004842A1/fr not_active Application Discontinuation
- 1987-02-05 US US07/134,786 patent/US4875204A/en not_active Expired - Fee Related
- 1987-02-05 JP JP62501707A patent/JPH0654540B2/ja not_active Expired - Lifetime
- 1987-02-05 EP EP19870901772 patent/EP0256143A4/fr not_active Withdrawn
- 1987-02-05 HU HU871858A patent/HU200020B/hu not_active IP Right Cessation
- 1987-02-06 YU YU00178/87A patent/YU17887A/xx unknown
- 1987-02-07 CN CN87101611A patent/CN1010442B/zh not_active Expired
- 1987-04-23 IN IN321/CAL/87A patent/IN168113B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SU1628081A1 (ru) | 1991-02-15 |
| HUT47756A (en) | 1989-03-28 |
| YU17887A (en) | 1989-06-30 |
| JPS63503415A (ja) | 1988-12-08 |
| CN87101611A (zh) | 1987-10-07 |
| WO1987004842A1 (fr) | 1987-08-13 |
| US4875204A (en) | 1989-10-17 |
| CN1010442B (zh) | 1990-11-14 |
| JPH0654540B2 (ja) | 1994-07-20 |
| EP0256143A4 (fr) | 1988-09-19 |
| EP0256143A1 (fr) | 1988-02-24 |
| HU200020B (en) | 1990-03-28 |