US PATENT SUBCLASS 348 / 638
.~ Chrominance signal demodulator

Current as of: June, 1999
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348 /   HD   TELEVISION

571  DF  IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION {34}
638.~ Chrominance signal demodulator {3}
639  DF  .~.~> Digital
640  DF  .~.~> PAL signal
641  DF  .~.~> For quadrature signal (e.g., NTSC)

DEFINITION

Classification: 348/638

Chrominance signal demodulator:

(under subclass 571) Subject matter including a means particularly adapted for deriving color difference or chrominance signal from a subcarrier component of a color television signal.