H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/67
H04N 9/52 (1980.01)
Patent
CA 1146266
ABSTRACT A color-signal detection system for a three-color television receiver is disclosed. A first circuit supplies a signal primarily representative of the brightness of a tele- vised color image. A second circuit supplies a wave signal effectively modulated at different phases by color-difference signals defining the chrominance of the image. A first signal- detection circuit is coupled to the second circuit for-deriving from one phase of the wave signal a component representative of one of- the color-difference signals. A second signal-detec- tion circuit is coupled to the second circuit for deriving from another phase of the wave signal a component representative of another of the color-difference signals. A signal-combining system which is responsive jointly to the brightness signal and the derived components representative of the color-difference signals develops at least three effects for use by a three-color dis- play of a three-color television receiver.
796598
Hazeltine Corporation
Johnson Douglas S. Q.c.
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