Color subcarrier generator

Details Color subcarrier generator Color subcarrier generator

H - Electricity

04

N

375/19, 350/3, 3

H04N 9/45 (2006.01) G09G 1/28 (2006.01)

Patent

CA 1200891

S01721 COLOR SUBCARRIER GENERATOR ABSTRACT OF THE DISCLOSURE A color subcarrier generator used with a system for converting data representing color displays into a composite color video signal suitable for display by a visual display apparatus comprises an oscillator which generates a system clock signal with a predetermined frequency, a frequency divider responsive to the system clock signal from the oscillator which generates horizontal and vertical sync signals for the visual display apparatus and a dot clock signal for timing sequential dots of the horizontal lines of the composite color video signal into which the data is converted, and a subcarrier generating circuit which generates a color subcarrier signal to be included in the composite color video signal and which is synchronized in phase with the horizontal sync signal.

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