US PATENT SUBCLASS 455 / 304
.~.~.~ Phase shift in at least one path

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

130  DF  RECEIVER OR ANALOG MODULATED SIGNAL FREQUENCY CONVERTER {24}
296  DF  .~ Noise or interference elimination {10}
303  DF  .~.~ Using plural separate signal paths {2}
304.~.~.~ Phase shift in at least one path

DEFINITION

Classification: 455/304

Phase shift in at least one path:

(under subclass 303) Subject matter wherein at least one of the separate signal paths includes phase shifting or delaying.

SEE OR SEARCH CLASS

333, Wave Transmission Lines and Networks,

138+, for passive phase delay networks, per se.