US PATENT SUBCLASS 327 / 335
.~ By differentiating

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327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

334  DF  SPECIFIC INPUT TO OUTPUT FUNCTION {9}
335.~ By differentiating

DEFINITION

Classification: 327/335

By differentiating:

(under subclass 334) Subject matter wherein the output signal is proportional to the instantaneous rate of change of the input signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

1+, for signal discriminating (e.g., comparing or selecting) without subsequent control and particularly subclasses 14+ for signal slope comparing or selecting.

336+, for signal integrating.

SEE OR SEARCH CLASS

364, Electrical Computers and Data Processing Systems,

828, for an analog computer adapted to perform a differentiation on an input.