US PATENT SUBCLASS 324 / 76.43
.~.~.~ With plural mixers

Current as of: June, 1999
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324 /   HD   ELECTRICITY: MEASURING AND TESTING

76.11  DF  MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE {46}
76.39  DF  .~ Frequency of cyclic current or voltage (e.g., cyclic counting etc.) {6}
76.41  DF  .~.~ Frequency comparison, (e.g., heterodyne, etc.) {4}
76.43.~.~.~ With plural mixers

DEFINITION

Classification: 324/76.43

With plural mixers:

(under subclass 76.41) Subject matter including more than one circuit that generates output frequencies equal to the sum

and the difference of two input frequencies.

SEE OR SEARCH THIS CLASS, SUBCLASS:

76.23, for mixers in frequency spectrum analyzers

SEE OR SEARCH CLASS

455, Telecommunications,

313+, for mixers, per se.