Video coupler device
US4750216A · kind A · utility
13Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1985 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | Oct 31, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video coupler device capable of providing high effective electrical isolation between an analog video signal source system and a signal receiving system is disclosed. The device includes a high-speed LED and a high-speed, linear, integrated circuit. The integrated circuit includes a photodiode, an input current amplifier and an output transimpedance amplifier. The resultant video coupler exhibits a high degree of linearity and stability at a low cost, while requiring minimal external circuitry to handle standard video signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.