Superimposition of television images
US4157572A · kind A · utility
21Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1977 |
| Grant date | Jun 5, 1979 |
| Priority date | — |
| Expiry date | Sep 12, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/77
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for the superimposition of television images including recorder apparatus for recording and playing back first video signals, image generating apparatus for providing second video signals, drive apparatus for driving the image generating apparatus synchronously with respect to the recorder apparatus responsive to receipt by the drive apparatus of first video signals and signal combining apparatus for superimposing the first and second video signals. Display and/or recording means may be provided for displaying and recording the superimposed video image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.