Clamp system used for television signal
US5008753A · kind A · utility
8Cited by
9References
7Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 23, 1989 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Feb 23, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A clamp system for television signal comprises a first clamp device for clamping to a clamp control voltage supplied from an external source by a horizontal clamp pulse and a second clamp device for controlling the DC potential of the television signal by adding the externally-supplied control voltage to an input television signal. The first clamp device is used during the period requiring an early clamp start, and the second clamp device is operated under normal conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.