Method and apparatus for recording on a disk supported deformable metallic film
US4410968A · kind A · utility
12Cited by
17References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1980 |
| Grant date | Oct 18, 1983 |
| Priority date | — |
| Expiry date | Sep 16, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Information is stored, using a relatively low-power light beam, by redistributing the material in a deformable film. In a disc configuration, positioning of the light beam is achieved by referencing to a previously recorded track. In a document storage and retrieval system the document is scanned with the resultant scanned signal modulating the writing light beam producing a recorded track. This track is optically read with the resultant signal applied to a printer. For optimum utilization of the area, the recording and readout take place at constant velocity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.