US PATENT SUBCLASS 375 / 223
.~.~ Angle modulation

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

219  DF  TRANSCEIVERS {3}
222  DF  .~ Modems (data sets) {1}
223.~.~ Angle modulation

DEFINITION

Classification: 375/223

Angle modulation:

(under subclass 222) Subject matter in which the transmitted characteristic or pulses to be transmitted vary the phase or frequency of a carrier wave.

SEE OR SEARCH THIS CLASS, SUBCLASS:

211, for angle modulated pulse repeaters.

271+, for pulse modulated carrier systems which are angle modulated.

302+, for angle modulated carrier pulse transmitters.

322+, for angle modulated carrier pulse receivers.

SEE OR SEARCH CLASS

359, Optics: Systems (Including Communication) and Elements, 182, and 183 for an angle modulated light wave transmitter.