US PATENT SUBCLASS 327 / 27
.~.~ With reference

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}
23  DF  .~ By pulse coincidence {4}
27.~.~ With reference

DEFINITION

Classification: 327/27

With reference:

(under subclass 23) Subject matter wherein an input pulse

signal is compared with a predetermined standard signal.