US PATENT SUBCLASS 340 / 939
.~ Environmental or drift compensation

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

933  DF  VEHICLE DETECTORS {10}
939.~ Environmental or drift compensation

DEFINITION

Classification: 340/939

Environmental or drift compensation:

(under subclass 933) Subject matter including means for recalibrating the vehicle detector circuitry to compensate for nonvehicle outside influences.

(1) Note. Examples of outside influences are temperature, humidity, aging of circuitry components.