US PATENT SUBCLASS 348 / 686
.~.~ Manual contrast control (e.g., linear)

Current as of: June, 1999
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348 /   HD   TELEVISION

571  DF  IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION {34}
671  DF  .~ Gray scale transformation {5}
686.~.~ Manual contrast control (e.g., linear)

DEFINITION

Classification: 348/686

Manual contrast control (e.g., linear):

(under subclass 671) Subject matter in which the magnitude of a TV signal is modified by some manually adjustable setting.