US PATENT SUBCLASS 348 / 179
.~.~ Color match comparator

Current as of: June, 1999
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348 /   HD   TELEVISION

177  DF  DISPLAY OR RECEIVER WITH BUILT-IN TEST SIGNAL GENERATOR, TEST PATTERN, OR ADJUSTING ADJUNCT {1}
178  DF  .~ Setup {1}
179.~.~ Color match comparator

DEFINITION

Classification: 348/179

Color match comparator:

(under subclass 177) Subject matter including a means for comparing a picture signal with a reference picture signal to permit an accurate adjustment for the color reception.

SEE OR SEARCH THIS CLASS, SUBCLASS:

657, and 658, for color match comparator built-in to the receiver.