US PATENT SUBCLASS 332 / 115
.~ Pulse amplitude modulator

Current as of: June, 1999
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332 /   HD   MODULATORS

106  DF  PULSE OR INTERRUPTED CONTINUOUS WAVE MODULATOR {5}
115.~ Pulse amplitude modulator {1}
116  DF  .~.~> Including discrete semiconductor device having three or more electrodes

DEFINITION

Classification: 332/115

Pulse amplitude modulator:

(under subclass 106) Subject matter producing a pulse wave output signal in which the amplitude of the pulses is controlled by the modulating signal.

SEE OR SEARCH CLASS

375, Pulse or Digital Communications,

300+, for a combination of pulse amplitude modulator with transmitting structure, and subclasses 268+ for a pulse amplitude modulation system (i.e., transmitter and receiver).