Television editing system
US4333110A · kind A · utility
Inventors
Key dates
| Filing date | Mar 30, 1981 |
| Grant date | Jun 1, 1982 |
| Priority date | — |
| Expiry date | Mar 30, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/44
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A television editing system includes devices which respond to the absence of picture information in a video signal for at least a predetermined period of time, a prelude to the start of a commercial message, and disable or reduce the audio output from a television set or the like for a given period. A microphone is arranged to receive an external audio recall signal, which could be produced by a user clapping his hands. This received signal is processed and used to recall the audio output within the given period. A circuit, responsive to received video signals over a period during which several commercial messages may appear, automatically sets the sensitivity of the editing system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.