Synchronizing circuit

Details Synchronizing circuit Synchronizing circuit

1976-05-11

1977-08-02

Kominski, John

Oscillators

Automatic frequency stabilization using a phase or frequency...

With reference oscillator or source

331 76, 331 61, 331111, H03B 308

Patent

active

040399680

ABSTRACT:
A circuit for synchronizing a microwave oscillator with a reference source of known frequency. The synchronizing circuit includes a phase-lock loop which compares the output of a free-running, crystal-controlled, voltage-controlled oscillator with the output of a burst oscillator. The output of the burst oscillator has a comb spectrum comprising harmonics of the reference frequency and the phase-lock loop locks onto a selected one of the comb harmonics.

REFERENCES:
patent: 3021492 (1962-02-01), Kaufman
patent: 3155919 (1964-11-01), Baxter et al.
patent: 3379995 (1968-04-01), Koontz et al.
patent: 3405369 (1968-10-01), Couvillon
patent: 3593167 (1971-07-01), Koulopoulos
patent: 3657664 (1972-04-01), Brack
patent: 3714595 (1973-01-01), Denenberg et al.
patent: 3864634 (1975-02-01), Dragonetti

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