US PATENT SUBCLASS 367 / 124
.~ By combining or comparing signals

Current as of: June, 1999
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367 /   HD   COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES

118  DF  DISTANCE OR DIRECTION FINDING {6}
124.~ By combining or comparing signals {2}
125  DF  .~.~> Phase comparison and/or correlation
126  DF  .~.~> Addition or subtraction

DEFINITION

Classification: 367/124

By combining or comparing signals:

(under subclass 118) Subject matter wherein a signal is derived from the combination of the signals in two or more receiving channels (as by addition or multiplication) or from the measurement of the degree of similarity between such signals.