US PATENT SUBCLASS 348 / 13
TWO-WAY (E.G., INTERACTIVE)

Current as of: June, 1999
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348 /   HD   TELEVISION

13TWO-WAY (E.G., INTERACTIVE) {1}
14  DF  .~> With voice capability (e.g., videophone) {4}

DEFINITION

Classification: 348/13

TWO-WAY (E.G., INTERACTIVE):

(under the class definition) Subject matter including means for establishing a bi-directional communication of information wherein at least one television signal is involved.

SEE OR SEARCH THIS CLASS, SUBCLASS:

12, for two-way communication including wired broadcast.