US PATENT SUBCLASS 375 / 331
.~.~.~.~ More than two phases

Current as of: June, 1999
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375 /   HD   PULSE OR DIGITAL COMMUNICATIONS

316  DF  RECEIVERS {9}
322  DF  .~ Angle modulation {4}
329  DF  .~.~ Phase shift keying {3}
330  DF  .~.~.~ Differential (diphase) {1}
331.~.~.~.~ More than two phases

DEFINITION

Classification: 375/331

More than two phases:

(under subclass 330) Subject matter in which there are at least three possible phases that the received signal can assume.