US PATENT SUBCLASS 388 / 911
.~ Phase locked loop

Current as of: June, 1999
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388 /   HD   ELECTRICITY: MOTOR CONTROL SYSTEMS

907  DF  SPECIFIC CONTROL CIRCUIT ELEMENT OR DEVICE {13}
911.~ Phase locked loop

DEFINITION

Classification: 388/911

Phase locked loop:

Art collection of systems which include a circuit element or subsystem which exhibits the property of securing and maintaining a given phase relationship between two electrical signals.