US PATENT SUBCLASS 455 / 299
.~.~.~ Filter or rectification in power supply energized by fluctuating or a.c. source

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

130  DF  RECEIVER OR ANALOG MODULATED SIGNAL FREQUENCY CONVERTER {24}
296  DF  .~ Noise or interference elimination {10}
298  DF  .~.~ Originating in power supply {1}
299.~.~.~ Filter or rectification in power supply energized by fluctuating or a.c. source

DEFINITION

Classification: 455/299

Filter or rectification in power supply energized by fluctuating or A. C. source:

(under subclass 298) Subject matter having means to smooth or integrate the current or voltage of energization before application thereof to the signal processing components, the energizing circuit also having means to make the voltage or current unidirectional (i.e., D.C.) prior to application to such smoothing or integrating means, if necessary.