US PATENT SUBCLASS 327 / 52
.~.~.~ Differential amplifier

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}
51  DF  .~.~ With sensing amplifier {2}
52.~.~.~ Differential amplifier {3}
53  DF  .~.~.~.~> Current mirror
54  DF  .~.~.~.~> Having feedback {1}
56  DF  .~.~.~.~> With reference signal

DEFINITION

Classification: 327/52

Differential amplifier:

(under subclass 51) Subject matter including a device responsive to the offset between two input voltages or currents and nonresponsive to voltages or currents which are identical in the two inputs.