US PATENT SUBCLASS 327 / 15
.~.~.~ With direction (i.e., positive or negative)

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}
14  DF  .~.~ Slope {1}
15.~.~.~ With direction (i.e., positive or negative)

DEFINITION

Classification: 327/15

With direction (i.e., positive or negative):

(under subclass 14) Subject matter wherein the output signal indicates an upward or downward inclination of the input.