Patent ID: 6995804

Claim:
An apparatus for separating color and luminance signals from a composite video signal, the apparatus comprising: an output section for outputting the composite video signal combining the color signal and the luminance signal; a first filter for frame-comb-filtering the composite video signal to separate a first color signal and a first luminance signal from the composite video signal; a second filter for line-comb-filtering the composite video signal to separate a second color signal and a second luminance signal from the composite video signal; a motion detector for detecting the existence of a motion in the composite video signal using the second luminance signal, and outputting a motion signal if the existence of the motion detected; a motion estimator for estimating the degree of the motion in the composite video signal using the second luminance signal according to the motion signal from the motion detector; a third filter for separating a third color signal and a third luminance signal from the composite video signal according to the degree of the motion from the motion estimator; a controller for outputting a control signal for selecting one of the first, second and third color signals and one of the first, second and third luminance signals, respectively, according to the motion signal and the degree of the motion; a color signal selector for selecting one of the first, second and third color signals according to the control signal; and a luminance signal selector for selecting one of the first, second and third luminance signals according to the control signal.