Chroma keying selector system

Details Chroma keying selector system Chroma keying selector system

H - Electricity

04

N

350/53

H04N 9/75 (2006.01)

Patent

CA 1130913

RCA 72,885 ABSTRACT A remotely controlled chroma keyer is provided which is responsive to the red, green and blue signals from a video source such as a color camera for providing color difference signals. A signal processing system using quadrant multipliers is used for summing and differencing these color difference signals which when applied to a non-additive mixer select a particular color. The color selection is determined by control voltages applied to the multipliers.

334075

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