US PATENT SUBCLASS 327 / 280
.~.~.~.~ Differential amplifier

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

100  DF  SIGNAL CONVERTING, SHAPING, OR GENERATING {29}
261  DF  .~ Having specific delay in producing output waveform {7}
276  DF  .~.~ Single output with variable or selectable delay {3}
278  DF  .~.~.~ Having specific active circuit element or structure (e.g., complementary transistors, etc.) {4}
280.~.~.~.~ Differential amplifier

DEFINITION

Classification: 327/280

Differential amplifier:

(under subclass 278) Subject matter including a circuit which amplifies only the differences between two input signal

voltages or currents and suppresses voltages or currents appearing simultaneously on both inputs.

SEE OR SEARCH THIS CLASS, SUBCLASS:

246+, for variable or adjustable phase shift control using differential amplifier.

266, for a differential amplifier in an active circuit element or structure to effect output waveform production delay via the rising or falling edge of a pulse signal.

274, for a differential amplifier in an active circuit element or structure to effect output waveform production delay of multiple outputs with a plurality of delay intervals.

287, for a differential amplifier in an active circuit element or structure to effect output waveform production delay.

SEE OR SEARCH CLASS 330, Amplifiers, for electrical amplifiers, in general.