Signal unscrambler
US4387393A · kind A · utility
1Cited by
3References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1980 |
| Grant date | Jun 7, 1983 |
| Priority date | — |
| Expiry date | Jul 11, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/1716
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A received video signal that has been inverted at the transmitter is reinverted by the use of low cost pin diodes to reverse the ground and signal lead connections to the primary winding of a transformer operating at RF frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.