US PATENT SUBCLASS 318 / 617
.~.~.~.~ Variable rate feedback

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}
615  DF  .~.~ By auxiliary feedback loop {1}
616  DF  .~.~.~ Rate feedback {2}
617.~.~.~.~ Variable rate feedback

DEFINITION

Classification: 318/617

(under subclass 616) Subject matter in which the rate sensing circuit is made variable to further enhance the stabilizing effect.

SEE OR SEARCH THIS CLASS, SUBCLASS:

651, for position servos which include an error detector responsive to acceleration.

SEE OR SEARCH CLASS

91, Motors: Expansible Chamber Type,

364, for fluid motor control systems which include variable rate feedback.