US PATENT SUBCLASS 318 / 619
.~.~ Variable gain bandwidth


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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}
619.~.~ Variable gain bandwidth


DEFINITION

Classification: 318/619

(under subclass 611) Subject matter in which the stabilizing means is a means for changing the gain of the servo loop of its bandwidth. The bandwidth is the upper and lower limit of frequencies to which the servo will respond.

(1) Note. For example, the variable gain element in the loop may be used to make the loop less sensitive to large

error signals with means to increase the gain as balance is achieved.

(2) Note. For example, the bandwidth may be made variable so the loop is made more or less sensitive to certain frequency components which are present in the command signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

561, for adaptive or optionizing controls which may utilize variable gain elements.

SEE OR SEARCH CLASS 244, Aeronautics,

175+, aircraft controls which include variable gain or bandwidth systems.