US PATENT SUBCLASS 332 / 109
.~ Pulse width modulator

Current as of: June, 1999
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332 /   HD   MODULATORS

106  DF  PULSE OR INTERRUPTED CONTINUOUS WAVE MODULATOR {5}
109.~ Pulse width modulator {2}
110  DF  .~.~> Including discrete semiconductor device having three or more electrodes
111  DF  .~.~> Including electron discharge device

DEFINITION

Classification: 332/109

Pulse width modulator:

(under subclass 106) Subject matter producing a pulse wave output signal in which the pulse width (duration) is varied by the modulating signal.

SEE OR SEARCH CLASS

375, Pulse or Digital Communications,

238, for a combination of pulse width modulator with transmitting structure.