US PATENT SUBCLASS 329 / 334
.~.~.~.~.~ Including resonant circuits tuned above and below input signal carrier frequency

Current as of: June, 1999
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329 /   HD   DEMODULATORS

315  DF  FREQUENCY MODULATION DEMODULATOR {7}
327  DF  .~ Input signal split into plural signals {5}
329  DF  .~.~ Using a transformer to split input signal {3}
332  DF  .~.~.~ Signals taken from plural secondary windings {1}
333  DF  .~.~.~.~ Including plural detector diodes (e.g., ratio detector type) {1}
334.~.~.~.~.~ Including resonant circuits tuned above and below input signal carrier frequency

DEFINITION

Classification: 329/334

Including resonant circuits tuned above and below input signal carrier frequency:

(under subclass 333) Subject matter which additionally utilizes a pair of tuned circuits having resonant frequencies above and below the carrier frequency of the input signal.