Video coupler device

Details Video coupler device Video coupler device

1985-10-31

1988-06-07

Griffin, Robert L.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

250551, 455602, 455606, 455619, H04B 900

Patent

active

047502169

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.

REFERENCES:
patent: 4104533 (1978-08-01), Iverson
patent: 4282604 (1981-08-01), Jefferson
patent: 4446375 (1984-05-01), Aird
patent: 4567446 (1986-01-01), Konishi
Microelectronic Circuits, Sedra et al, p. 37 .COPYRGT.1982.
Advanced Technology, Integrated Optoelectronics, Bar-Chaim et al, pp. 38-46 .COPYRGT.1982.
High Speed Optocouplers--Hewlett Packard Data Sheet for the GN136.
Photon Coupled Isolator--General Electric Data Sheet for the H11N1.
John Soluk, "Add A Video Input To Your TV," Apr. 1983, Radio-Electronics, pp. 43-48.

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