US PATENT SUBCLASS 702 / 195
.~.~.~.~.~ Subtracting noise component

Current as of: June, 1999
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702 /   HD   DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING

127  DF  MEASUREMENT SYSTEM {15}
189  DF  .~ Measured signal processing {3}
190  DF  .~.~ Signal extraction or separation (e.g., filtering) {2}
191  DF  .~.~.~ For noise removal or suppression {2}
194  DF  .~.~.~.~ By mathematical attenuation (e.g., weighting, averaging) {1}
195.~.~.~.~.~ Subtracting noise component

DEFINITION

Classification: 702/195

Subtracting noise component:

(under subclass 194) Subject matter comprising at least a subtracter for eliminating or reducing a noise component in the incoming signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

17, for filtering or noise reduction in a seismic prospecting system.

111, for a testing system having noise signal stimulus.