High accuracy frequency standard and clock system

Details High accuracy frequency standard and clock system High accuracy frequency standard and clock system

1987-12-24

1990-02-06

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Molecular resonance stabilization

331 44, 331 47, 331176, 368 56, 368202, H03L 726

Patent

active

048991171

ABSTRACT:
A high accuracy atomic frequency standard and clock which utilizes a micrmputer. The microcomputer compensates for aging and temperature variations in the atomic standard and its slave crystal oscillator and generates an error signal which is used to either correct the frequency of the slave crystal oscillator or to adjust the number of clock pulses per unit time interval. No C-field adjustment is employed.

REFERENCES:
patent: 4303893 (1981-12-01), Goldberg
patent: 4476445 (1984-10-01), Riley, Jr.
patent: 4582434 (1986-04-01), Plangger et al.
patent: 4633422 (1986-12-01), Brauer

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