Wide bandwidth video amplifier
US4293875A · kind A · utility
12Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 3, 1980 |
| Grant date | Oct 6, 1981 |
| Priority date | — |
| Expiry date | Jan 3, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/148
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The video amplifier circuit comprises a complementary symmetrical arrangement of a first and second solid state transistor element with the video input source coupled through a level shifting circuit to the first element and through a DC level shifting circuit to the second element and with means provided for operating each element in a clamped mode approaching saturation. Additional circuit modifications include means for modulating the video input signal with a high frequency signal to cause continuous gray scale variation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.