US PATENT SUBCLASS 331 / 32
.~.~ With particular discriminator (e.g., LPF and HPF)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


331 /   HD   OSCILLATORS

1 R  DF  AUTOMATIC FREQUENCY STABILIZATION USING A PHASE OR FREQUENCY SENSING MEANS {16}
30  DF  .~ With stable heterodyne oscillator or source {2}
32.~.~ With particular discriminator (e.g., LPF and HPF) {1}
33  DF  .~.~.~> Plural diode type

DEFINITION

Classification: 331/32

(under subclass 30) Subject matter wherein a significant or particular single-input frequency deviation detecting network or discriminator is utilized in the A.F.S. loop of the controlled oscillator.

SEE OR SEARCH THIS CLASS, SUBCLASS:

3, for A.F.S. systems utilizing a molecular resonance type discriminator.

9, for A.F.S. systems utilizing a distributed parameter type discriminator.

25+, for A.F.S. systems wherein the discriminator is of the signal or phase comparing type, having at least two inputs for the signals (of the controlled oscillator and reference source) to be compared.