FR2338613B1 - - Google Patents
Info
- Publication number
- FR2338613B1 FR2338613B1 FR7601126A FR7601126A FR2338613B1 FR 2338613 B1 FR2338613 B1 FR 2338613B1 FR 7601126 A FR7601126 A FR 7601126A FR 7601126 A FR7601126 A FR 7601126A FR 2338613 B1 FR2338613 B1 FR 2338613B1
- Authority
- FR
- France
- 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
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
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/13—Optical detectors therefor
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Television Signal Processing For Recording (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7601126A FR2338613A1 (fr) | 1976-01-16 | 1976-01-16 | Dispositif de traitement de signal et lecteur optique de videodisque comportant un tel dispositif |
| SU772441299A SU670253A3 (ru) | 1976-01-16 | 1977-01-14 | Устройство дл воспроизведени с видеогрампластинки |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7601126A FR2338613A1 (fr) | 1976-01-16 | 1976-01-16 | Dispositif de traitement de signal et lecteur optique de videodisque comportant un tel dispositif |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2338613A1 FR2338613A1 (fr) | 1977-08-12 |
| FR2338613B1 true FR2338613B1 (US07922777-20110412-C00004.png) | 1980-04-30 |
Family
ID=9168031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7601126A Granted FR2338613A1 (fr) | 1976-01-16 | 1976-01-16 | Dispositif de traitement de signal et lecteur optique de videodisque comportant un tel dispositif |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2338613A1 (US07922777-20110412-C00004.png) |
| SU (1) | SU670253A3 (US07922777-20110412-C00004.png) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5841447A (ja) * | 1981-09-04 | 1983-03-10 | Hitachi Ltd | 光スポット制御信号検出方法 |
| DE3635840A1 (de) * | 1986-10-22 | 1988-05-05 | Thomson Brandt Gmbh | Mit strahlen abtastendes abtastsystem |
-
1976
- 1976-01-16 FR FR7601126A patent/FR2338613A1/fr active Granted
-
1977
- 1977-01-14 SU SU772441299A patent/SU670253A3/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| SU670253A3 (ru) | 1979-06-25 |
| FR2338613A1 (fr) | 1977-08-12 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |