FR2149654A5 - - Google Patents
Info
- Publication number
- FR2149654A5 FR2149654A5 FR7130146A FR7130146A FR2149654A5 FR 2149654 A5 FR2149654 A5 FR 2149654A5 FR 7130146 A FR7130146 A FR 7130146A FR 7130146 A FR7130146 A FR 7130146A FR 2149654 A5 FR2149654 A5 FR 2149654A5
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/84—Television signal recording using optical recording
- H04N5/843—Television signal recording using optical recording on film
-
- 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
- G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
-
- 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
-
- 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
- G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7130146A FR2149654A5 (show.php) | 1971-08-18 | 1971-08-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7130146A FR2149654A5 (show.php) | 1971-08-18 | 1971-08-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2149654A5 true FR2149654A5 (show.php) | 1973-03-30 |
Family
ID=9081982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7130146A Expired FR2149654A5 (show.php) | 1971-08-18 | 1971-08-18 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2149654A5 (show.php) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0019378A1 (en) * | 1979-05-14 | 1980-11-26 | Xerox Corporation | A digital optical memory |
| EP0019379A1 (en) * | 1979-05-14 | 1980-11-26 | Xerox Corporation | A recording medium for a digital optical memory, and a memory using such a medium |
| WO1986002767A1 (en) * | 1984-10-29 | 1986-05-09 | Ncr Corporation | Optical data reader |
| EP0205940A1 (de) * | 1985-05-31 | 1986-12-30 | Siemens Aktiengesellschaft | Optisches System zum Führen des Lesestrahles bei einem magneto-optischen Speicher |
| EP0282611A1 (en) * | 1987-03-16 | 1988-09-21 | Moshe Guez | Method and apparatus for writing information on processed photographic film |
-
1971
- 1971-08-18 FR FR7130146A patent/FR2149654A5/fr not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0019378A1 (en) * | 1979-05-14 | 1980-11-26 | Xerox Corporation | A digital optical memory |
| EP0019379A1 (en) * | 1979-05-14 | 1980-11-26 | Xerox Corporation | A recording medium for a digital optical memory, and a memory using such a medium |
| US4290122A (en) | 1979-05-14 | 1981-09-15 | Xerox Corporation | Self-synchronizing clock source for optical memories |
| WO1986002767A1 (en) * | 1984-10-29 | 1986-05-09 | Ncr Corporation | Optical data reader |
| EP0205940A1 (de) * | 1985-05-31 | 1986-12-30 | Siemens Aktiengesellschaft | Optisches System zum Führen des Lesestrahles bei einem magneto-optischen Speicher |
| US4773053A (en) * | 1985-05-31 | 1988-09-20 | Siemens Aktiengesellschaft | Optical system for guiding the read beam in a magneto-optical storage |
| EP0282611A1 (en) * | 1987-03-16 | 1988-09-21 | Moshe Guez | Method and apparatus for writing information on processed photographic film |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |