.~ Phase comparison (e.g., between cyclic pulse voltage and sinusoidal current, etc.) {11}
85
.~.~ With frequency conversion
DEFINITION
Classification: 324/85
(under subclass 83) Subject matter having means to change the frequency of a voltage or current into another frequency which varies in correspondence therewith.
SEE OR SEARCH THIS CLASS, SUBCLASS:
79, for frequency measuring using zero or countable beat heterodyne.
82, for the subject matter of this subclass (85) used to measure frequency.
