US PATENT SUBCLASS 348 / 665
.~.~ Including comb filter (e.g., using line, field, frame delays)

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.~.~ Including comb filter (e.g., using line, field, frame delays) {3}
666  DF  .~.~.~> Including adaptive artifacts removal (e.g., switchable trap or LPF in luma channel)
667  DF  .~.~.~> Adaptive comb filter {1}
670  DF  .~.~.~> Including frame or field delays

DEFINITION

Classification: 348/665

Including comb filter (e.g., using line, field, frame delays):

(under subclass 663) Subject matter wherein the separation is preformed by adding and/or subtracting at least two signals which are on different lines, fields, or frames.