US PATENT SUBCLASS 348 / 664
.~.~ Logic circuit type

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}
664.~.~ Logic circuit type

DEFINITION

Classification: 348/664

Logic circuit type:

(under subclass 663) Subject matter wherein the separation is preformed by logically combining signals such as using max, min, and/or coincident circuits.

(1) Note. Logic circuits used to select output or remove artifacts are classified in subclasses 665+.