System for combining analog and image signals into a standard vi

Details System for combining analog and image signals into a standard vi System for combining analog and image signals into a standard vi

1976-02-04

1977-08-30

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

128 206G, 358 93, 340324AD, H04N 522

Patent

active

040458156

ABSTRACT:
A system for combining at least one analog signal, such as EKG signal, and an image signal, such as video signal representing a fluoroscopic view of a patient's heart or the like. The system includes a summing amplifier, which provides an input to a TV monitor and/or video recorder. The first input to the summing amplifier is provided from a TV camera arranged to view a physiological activity. A second input to the summing amplifier is provided from an encoder which receives one analog signal representing physiological data. The encoder includes an analog-to-digital (A/D) converter which receives the analog signal and feeds it to a random access memory (RAM). The A/D converter and the RAM are controlled by sync signals derived from a master camera control unit, which also provides sync signals to the TV camera.

REFERENCES:
patent: 3765009 (1973-10-01), Graves
patent: 3798366 (1974-03-01), Hunt
patent: 3898644 (1975-08-01), Baxter
patent: 3909818 (1975-09-01), Dalke
patent: 3954098 (1976-05-01), Dick

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