Automatic connection system on a color TV S-VHS input
US5134483A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1991 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Feb 21, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/833
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An automatic connection circuit on either of the input terminals of a TV set, each of these inputs receiving video signals according to one of several standards, comprising a standard identification circuit (10) and a selection circuit (11), the identification circuit sending an inhibition signal (IN) to the selection circuit when it has detected a selected standard; a switch (14), the first terminal (12) of which is connected to the input of the identification circuit and the second terminal of which is connected to either of the input terminals by the action of a control signal (16); a divider (15) receiving a periodic signal and providing a signal for controlling the selection circuit according to a first period and the switch according to a half period, this divider being inhibited by said inhibition signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.