US PATENT SUBCLASS 369 / 44.29
.~.~.~ Servo loop gain/switching control

Current as of: June, 1999
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369 /   HD   DYNAMIC INFORMATION STORAGE OR RETRIEVAL

43  DF  WITH SERVO POSITIONING OF TRANSDUCER ASSEMBLY OVER TRACK COMBINED WITH INFORMATION SIGNAL PROCESSING {1}
44.11  DF  .~ Optical servo system {12}
44.27  DF  .~.~ Initialization/start-up or changing modes of system {2}
44.29.~.~.~ Servo loop gain/switching control {1}
44.31  DF  .~.~.~.~> Recording

DEFINITION

Classification: 369/44.29

Servo loop gain/switching control:

(under subclass 44.27) Subject matter wherein the servo system continuously varies the servo gain or discretely switches in/out between servo loops.

(1) Note. Varying the gain may be some control operation not only to change the gain but to have the ability to vary it to keep it stable and prevent undesired varying, and varying the gain may be implemented with either active or passive (e.g., notch filter, etc.) elements.

(2) Note. Gain is defined as the ratio of output power to input power for a system or component.

SEE OR SEARCH THIS CLASS, SUBCLASS:

44.35, servo loop gain/switching control not associated with criteria for subclass 44.27.