Linear switch with high off-state isolation
US4978924A · kind A · utility
6Cited by
0References
4Claims
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Assignee
Inventor
Key dates
| Filing date | Apr 25, 1989 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | Apr 25, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/72
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A linear switch with high off-state isolation in provided for use in video waveform monitors and/or graphic encoders and mixers. The linear switch provides a proportional mix of two signal sources in response to a control voltage for fading and keying from one source to another in order to allow complete elimination of either source from the output (high isolation when a source is fully off) which can be achieved with minimal circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.