US PATENT SUBCLASS 348 / 600
.~.~.~.~ Graphic or character insertion type

Current as of: June, 1999
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348 /   HD   TELEVISION

571  DF  IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION {34}
578  DF  .~ Special effects {3}
584  DF  .~.~ Combining plural sources {7}
598  DF  .~.~.~ Specified details of signal combining {2}
600.~.~.~.~ Graphic or character insertion type

DEFINITION

Classification: 348/600

Graphic or character insertion type:

(under subclass 598) Subject matter including a specific circuitry peculiar to combining an image signal with a character signal.