US PATENT SUBCLASS 84 / 691
.~.~.~ Noise reduction (e.g., error prevention)
Current as of:
June, 1999
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84 /
HD
MUSIC
1
DF
INSTRUMENTS
{9}
600
DF
.~ Electrical musical tone generation {5}
671
DF
.~.~ Electric analog oscillators {9}
691
.~.~.~ Noise reduction (e.g., error prevention)
DEFINITION
Classification: 84/691
Noise reduction (e.g., error prevention):
(under subclass 671) Subject matter wherein circuitry is provided to reduce electrical noises, transients or unwanted disturbances.
SEE OR SEARCH THIS CLASS, SUBCLASS:
621, for noise reduction (e.g., error prevention) with digital storage.
683, for noise reduction (e.g., error prevention) with electric analog oscillators.
SEE OR SEARCH CLASS
341, Coded Data Generation and Conversion,
94+, for error detection or correction.
