US PATENT SUBCLASS 375 / 350
.~.~ By filtering (e.g., digital)

Current as of: June, 1999
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375 /   HD   PULSE OR DIGITAL COMMUNICATIONS

316  DF  RECEIVERS {9}
346  DF  .~ Interference or noise reduction {5}
350.~.~ By filtering (e.g., digital)

DEFINITION

Classification: 375/350

By filtering (e.g., digital):

(under subclass 346) Subject matter wherein the noise is reduced by a frequency domain or digital sequence filter. The filter may remove interference or pass only desired signals.

SEE OR SEARCH CLASS

455, Telecommunications,

307, for carrier wave receivers with filters for noise reduction.

708, Electrical Computers: Arithmetic Processing and Calculating,

300+, for digital filter.