Stable, reliable oscillator system using automatic oscillator su

Details Stable, reliable oscillator system using automatic oscillator su Stable, reliable oscillator system using automatic oscillator su

1990-08-03

1991-11-05

Grimm, Siegfried H.

Oscillators

Plural oscillators

Selectively connected to common output or oscillator...

455 75, 455119, H03L 700

Patent

active

050633570

ABSTRACT:
A high stability oscillator circuit 100 having an output 150 and a multiple of reference oscillators 102, 104, and 106 for enhanced stability and reliability is disclosed. The output signals of these oscillators 108, 110, and 112 are mixed and analyzed for determination of excessive frequency shift including component failure. Additionally a switch 148 decouples the shifted oscillator signal from the output of the circuit 150 and couples another one of the oscillators in its place.

REFERENCES:
patent: 3329905 (1967-07-01), Niertit et al.
patent: 4514706 (1985-04-01), Thompson
patent: 4583054 (1986-04-01), Basile

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