US PATENT SUBCLASS 340 / 310.03
.~.~ Noise reduction (e.g., filtering)

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

286.01  DF  SYSTEMS {24}
310.01  DF  .~ Signal over power line {6}
310.03.~.~ Noise reduction (e.g., filtering) {1}
310.04  DF  .~.~.~> Zero crossing

DEFINITION

Classification: 340/310.03

Noise reduction (e.g., filtering):

(under subclass 310.01) Subject matter wherein a circuit is provided to compensate for signal defects.