(under the class definition) Subject matter in which the phase of the carrier is varied over a continuum of values in accordance with the modulating signal.
(1) Note. This subclass includes phase modulators, per se. See SEARCH CLASS notes below for combinations with the subject matter of this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
106+, for a pulse modulator.
117+, for a frequency modulator.
149+, for an amplitude modulator.
SEE OR SEARCH CLASS
455, Telecommunications, 42+, for phase modulation in a system with separated transmitter and receiver, and subclasses 110+ for a combination of a phase modulator with transmitting structure.
