US PATENT SUBCLASS 327 / 16
.~.~ Having feedback

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

1  DF  SPECIFIC SIGNAL DISCRIMINATING (E.G., COMPARING, SELECTING, ETC.) WITHOUT SUBSEQUENT CONTROL {11}
13  DF  .~ By shape {3}
16.~.~ Having feedback

DEFINITION

Classification: 327/16

Having feedback:

(under subclass 13) Subject matter wherein a portion of the output signal is returned to an input.