US PATENT SUBCLASS 348 / 667
.~.~.~ Adaptive comb filter

Current as of: June, 1999
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348 /   HD   TELEVISION

571  DF  IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION {34}
663  DF  .~ Chrominance-luminance signal separation {2}
665  DF  .~.~ Including comb filter (e.g., using line, field, frame delays) {3}
667.~.~.~ Adaptive comb filter {1}
668  DF  .~.~.~.~> Selects or blends two or more separated signals to derive output {1}

DEFINITION

Classification: 348/667

Adaptive comb filter:

(under subclass 665) Subject matter including specific

circuitry for changing the output of the comb filter responsive to picture signal content.