Gray scale display system employing digital encoding
US4009335A · kind A · utility
8Cited by
14References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1973 |
| Grant date | Feb 22, 1977 |
| Priority date | — |
| Expiry date | Aug 9, 1993 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A large display system capable of displaying a video image receives video signals, quantizes those signals to produce a digital code capable of representing variations in the light content of the image and processes the digital code so to control individual display devices on a large matrix of such devices to have different levels of visibility to thereby reproduce the video image for viewing by a large audience. A data processor is utilized to store the digital representation of the video image in memory so that on line or off line presentations can be made.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.