US PATENT SUBCLASS 327 / 393
.~.~ With variable or multiple adjustable time of delay control (e.g., variable charge-discharge, on-delay/off-delay control, etc.)

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

365  DF  GATING (I.E., SWITCHING INPUT TO OUTPUT) {12}
392  DF  .~ Delay controlled switch (e.g., fixed, single time of delay control, etc.) {6}
393.~.~ With variable or multiple adjustable time of delay control (e.g., variable charge-discharge, on-delay/off-delay control, etc.) {4}
394  DF  .~.~.~> With field-effect device
395  DF  .~.~.~> Propagation through plural delay devices or paths
396  DF  .~.~.~> With plural switching elements (e.g., sequential, etc.)
397  DF  .~.~.~> Including negative resistance device in delay circuit (e.g., unijunction transistor, etc.)

DEFINITION

Classification: 327/393

With variable or multiple adjustable time of delay control (e.g., variable charge-discharge, on-delay/off-delay control, etc.):

(under subclass 392) Subject matter wherein the time offset is varied, for example, by (1) controlling a charge/discharge device to create different varying times, (2) changing a setting/resetting cycle, or (3) changing the on/off time of a control element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

172+, for pulse width or duration control.