US PATENT SUBCLASS 348 / 693
.~.~ At transmitter

Current as of: June, 1999
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348 /   HD   TELEVISION

571  DF  IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION {34}
691  DF  .~ DC insertion {6}
693.~.~ At transmitter

DEFINITION

Classification: 348/693

At transmitter:

(under subclass 691) Subject matter in which the level is set prior to transmission of the TV signal.