US PATENT SUBCLASS 331 / 11
.~.~ Plural comparators or discriminators

Current as of: June, 1999
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331 /   HD   OSCILLATORS

1 R  DF  AUTOMATIC FREQUENCY STABILIZATION USING A PHASE OR FREQUENCY SENSING MEANS {16}
10  DF  .~ Plural A.F.S. for a single oscillator {2}
11.~.~ Plural comparators or discriminators {1}
12  DF  .~.~.~> With phase-shifted inputs

DEFINITION

Classification: 331/11

(under subclass 10) Subject matter wherein the oscillator system is provided with two or more comparators or discriminators, each of which may be associated with a separate A.F.S. control. By way of examples (1) one discriminator may have a broad band frequency response characteristic and another discriminator may have a narrow band frequency response characteristic or (2) one discriminator may be of the frequency sensitive type, while another discriminator may be of the phase sensitive type.