US PATENT SUBCLASS 348 / 473
.~ Including additional information

Current as of: June, 1999
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348 /   HD   TELEVISION

469  DF  FORMAT {6}
473.~ Including additional information {5}
474  DF  .~.~> For controlling video processing (e.g., digitally assisted video)
475  DF  .~.~> Additional modulation of picture carrier (e.g., quadrature)
476  DF  .~.~> During sync, blanking, or overscan {4}
484  DF  .~.~> Sound signal {1}
486  DF  .~.~> Including the use of a subcarrier

DEFINITION

Classification: 348/473

Including additional information:

(under subclass 469) Subject matter including a signal component other than the video and sync components.

(1) Note. Additional information includes sound signal which may or may not be related to the image carried by the video signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

426+, for similar systems wherein the added signal is an additional part of the image such as a side panel, a high frequency component, or a vertical high frequency component.