US PATENT SUBCLASS 327 / 102
.~ Converting input frequency to output current or voltage

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327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

100  DF  SIGNAL CONVERTING, SHAPING, OR GENERATING {29}
102.~ Converting input frequency to output current or voltage

DEFINITION

Classification: 327/102

Converting input frequency to output current or voltage:

(under subclass 100) Subject matter wherein the magnitude of output signal current or voltage is directly related to the repetition rate of the input signal.

(1) Note. Included here are devices wherein an input signal of varying frequency is changed into a direct current output voltage which is a function of the input frequency.

(2) Note. Since period is inversely related to frequency, input period conversion to output current or voltage is also included here.

SEE OR SEARCH THIS CLASS, SUBCLASS:

39+, for frequency discrimination and particularly subclasses 47+ for frequency detection.

SEE OR SEARCH CLASS

329, Demodulators,

315+, for a frequency demodulator.