US PATENT SUBCLASS 332 / 119
.~ Plural modulation


Current as of: June, 1999
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332 /   HD   MODULATORS

117  DF  FREQUENCY MODULATOR {6}
119.~ Plural modulation {2}
120  DF  .~.~> Including amplitude modulation {1}
122  DF  .~.~> Including electron discharge device


DEFINITION

Classification: 332/119

Plural modulation:

(under subclass 117) 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 a frequency modulated signal.

(2) Note. Multiplex frequency modulators, per se, are classified here.

SEE OR SEARCH THIS CLASS, SUBCLASS:

108, for plural modulation in a pulse modulator.

145, for plural modulation in a phase modulator.

151+, for plural modulation in an amplitude modulator.

SEE OR SEARCH CLASS

370, Multiplex Communications, appropriate subclasses and particularly

204+, for plural diverse modulation techniques, subclass 215 for multiplex transmitter using phase modulation and subclass 483 for a multiplex transmitter using frequency 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.