US PATENT SUBCLASS 348 / 486
.~.~ Including the use of a subcarrier

Current as of: June, 1999
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348 /   HD   TELEVISION

469  DF  FORMAT {6}
473  DF  .~ Including additional information {5}
486.~.~ Including the use of a subcarrier

DEFINITION

Classification: 348/486

Including the use of a subcarrier:

(under subclass 473) Subject matter wherein the additional information modulates a carrier located within the bandwidth of the picture carrier.