US PATENT SUBCLASS 327 / 359
.~.~.~ Differential amplifier

Current as of: June, 1999
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327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

334  DF  SPECIFIC INPUT TO OUTPUT FUNCTION {9}
355  DF  .~ Combining of plural signals {3}
356  DF  .~.~ Product {3}
359.~.~.~ Differential amplifier

DEFINITION

Classification: 327/359

Differential amplifier:

(under subclass 356) Subject matter wherein a circuit amplifies only the differences between the two input signals and suppresses the input signals when they have identical signals.