US PATENT SUBCLASS 318 / 624
.~.~ By deadband at null (e.g., threshold circuits)

Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

560  DF  POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) {23}
611  DF  .~ With stabilizing features (e.g., anti-hunting, damping) {8}
624.~.~ By deadband at null (e.g., threshold circuits)

DEFINITION

Classification: 318/624

(under subclass 611) Subject matter in which the stabilizing means is a deadband in the servo loop which requires the servo error signal to be of a predetermined threshold magnitude before any control takes place.

SEE OR SEARCH CLASS

244, Aeronautics,

175+, for aircraft control systems which include deadband devices for control purposes.