Pattern-adaptive digital comb filter for separation of a luminance and a color signal
 In a circuit(s) which separates luminance and color signals of the digital color television, the present invention can reduce the noise as a circuit which adaptively performs the 1H comb filtering or the 2H comb filtering according to the correlation between upper and lower horizontal scanning lines of three successive horizontal lines when the luminance and color signals from an input video signal are to be separated. Also, even if the irregular video signal is applied, the present invention can reduce the artifact(s), by passing it without comb-filtering operation. 
SamSung Electronics Co., Ltd.
H
H04N
inventional
Jung H.
Kim