US PATENT SUBCLASS 370 / 339
.~ Plural usage of common antenna

Current as of: June, 1999
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370 /   HD   MULTIPLEX COMMUNICATIONS

310  DF  COMMUNICATION OVER FREE SPACE {10}
339.~ Plural usage of common antenna

DEFINITION

Classification: 370/339

Plural usage of common antenna:

(under subclass 310) Subject matter in which more than two transmitters or receivers operate from a common antenna.

SEE OR SEARCH THIS CLASS, SUBCLASS:

297, for diplex systems (two transmitters or receivers using a common antenna).

SEE OR SEARCH CLASS

333, Wave Transmission Lines and Networks,

100+, for a branched transmission lines network and subclasses 24+ for a coupling network.

348, Television,

6+, for a cable television system. 375, Pulse or Digital Communications,

257, for a cable system.

455, Telecommunications,

3.1+, for a distributive analog system.