US PATENT SUBCLASS 327 / 199
.~.~ Circuit having only two stable states (i.e., bistable)

Current as of: June, 1999
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327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

100  DF  SIGNAL CONVERTING, SHAPING, OR GENERATING {29}
185  DF  .~ Particular stable state circuit (e.g., tristable, etc.) {12}
199.~.~ Circuit having only two stable states (i.e., bistable) {11}
200  DF  .~.~.~> Dynamic bistable {1}
202  DF  .~.~.~> Master-slave bistable latch {2}
205  DF  .~.~.~> Using hysteresis (e.g., Schmitt trigger, etc.) {1}
207  DF  .~.~.~> Including diverse solid state devices (e.g., FET/bipolar, etc.)
208  DF  .~.~.~> Including field-effect transistor {3}
214  DF  .~.~.~> Complementary transistors
215  DF  .~.~.~> Having at least two cross-coupling paths {4}
223  DF  .~.~.~> Plural transistors of same conductivity type
224  DF  .~.~.~> With single semiconductor device
225  DF  .~.~.~> With logic element (e.g., NOR gate, etc.)
226  DF  .~.~.~> With single electron tube

DEFINITION

Classification: 327/199

Circuit having only two stable states (i.e., bistable):

(under subclass 185) Subject matter including a circuit

with exactly two distinct current-conductive steady-state conditions.

SEE OR SEARCH THIS CLASS, SUBCLASS:

227+, for monostable (single stable state) circuits, per se.

291+, for miscellaneous clock or pulse waveform generating.

365+, for switching of an unmodified input to an output.