Video signal reproduction or record/reproduction apparatus
US5608535A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1994 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Jun 13, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video signal reproduction or record/reproduction apparatus comprises a first playback circuit reproducing a normal video signal from a recording medium and outputting a reproduced normal video signal to a TV receiver, and a second playback circuit reproducing a high definition video signal from the recording medium and outputting a reproduced high definition video signal to the TV receiver. The type of a reproduced video signal is judged. When the judgement result indicates that the type of the reproduced video signal is a normal video signal, the first playback circuit is allowed to output the reproduced normal video signal to the TV receiver while the second playback circuit is enforced to mute the reproduced high definition video signal. In a disabled or transition period during which the type of the reproduced video signal cannot be judged, the first and second playback circuits select an output video signal on the basis of a judgement result judged immediately before such a disabled or transition period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.