US PATENT SUBCLASS 361 / 244
.~.~ Phase comparison

Current as of: June, 1999
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361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

236  DF  ELECTRICAL SPEED SIGNAL PROCESSING SYSTEMS {7}
243  DF  .~ Synchronization of shafts {1}
244.~.~ Phase comparison

DEFINITION

Classification: 361/244

Phase comparison:

(under subclass 243) Subject matter wherein the simultaneous rotation of the shaft is controlled by a phase measuring and comparing means with one of the shafts or a given phase acting as a reference phase.