Format-information synthesizing system
US4267548A · kind A · utility
5Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1978 |
| Grant date | May 12, 1981 |
| Priority date | — |
| Expiry date | Dec 20, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G1/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A format pattern carried on a format transparency is photoelectrically converted into an electric signal. The electric signal representing the format pattern is inputted into an "exclusive-or" circuit together with a character pattern signal representing output information of a computer. The output of the "exclusive-or" circuit controls an on-off modulator which modulates a laser beam for recording the output information of the computer. The modulated laser beam is deflected by a beam scanner to scan a photosensitive or heat sensitive film to record thereon the format pattern together with the computer output information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.