(under subclass 149) Subject matter having a plurality of modulators, modulating signals, or diverse output modulation types simultaneously present or individually selectable.
(1) Note. At least one final output signal must be an amplitude modulated carrier wave.
(2) Note. Multiplex amplitude modulators, per se, are classified here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
108, for plural modulation in a pulse modulator.
119+, for plural modulation in a frequency modulator.
145, for plural modulation in a phase modulator.
SEE OR SEARCH CLASS 370, Multiplex Communications, appropriate subclasses and particularly
204+, for plural diverse modulation techniques, and subclass 533 for a multiplexer using pulse amplitude modulation.
455, Telecommunications,
61, for plural modulation where a single message is conveyed between a separated transmitter and receiver and subclass 102 for plural modulation in a telecommunications transmitter.
