US PATENT SUBCLASS 381 / 94.3
.~.~ In multiple frequency bands

Current as of: June, 1999
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381 /   HD   ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES

94.1  DF  NOISE OR DISTORTION SUPPRESSION {7}
94.2  DF  .~ Spectral adjustment {1}
94.3.~.~ In multiple frequency bands

DEFINITION

Classification: 381/94.3

In multiple frequency bands:

(under subclass 94.2) Subject matter in which processing takes place in more than one spectral region, i.e., more than one frequency or frequency band is processed.