An adaptive comb filter employs vertical and horizontal edge detectors to selectively activate a vertical high-pass filter and a horizontal band-pass filter during the occurrence of vertical and horizontal edges in a received television signal, for use in the chrominance/luminance separation process. Artifacts such as "hanging dots" and "crawling dots", inherent in prior art comb filter circuits during the occurrence of vertical and horizontal edges in the composite television signal, are greatly reduced in the process.
申请公布号
US4979023(A)
申请公布日期
1990.12.18
申请号
US19890330844
申请日期
1989.03.30
申请人
TSINBERG, MIKHAIL;CAVALLERANO, ALAN P.;BASILE, CARLO
发明人
TSINBERG, MIKHAIL;CAVALLERANO, ALAN P.;BASILE, CARLO