US PATENT SUBCLASS 327 / 65
.~.~.~ Differential input

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}
50  DF  .~ By amplitude {9}
63  DF  .~.~ Comparison between plural varying inputs {5}
65.~.~.~ Differential input {2}
66  DF  .~.~.~.~> Current mirror
67  DF  .~.~.~.~> Having feedback

DEFINITION

Classification: 327/65

Differential input:

(under subclass 63) Subject matter wherein the differences between the plural varying input signals are initially amplified prior to further processing.