Arrangement for automatically switching a videorecorder on and off in the absence of a code signal but in presence of a FBAS signal
US4991025A · kind A · utility
104Cited by
12References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 1989 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | May 26, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/782
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The disclosed device enables the recording of television broadcasts which are preprogrammed in a memory. The presence of data lines of the television signal in combination with the presence of a color television signal is checked. When the data lines stop, the video recorder is switched on in real time by a clock time signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.