Feed-forward error correction for sandaps and other phase-locked

Oscillators – Automatic frequency stabilization using a phase or frequency... – With reference oscillator or source

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328155, H03L 700

Patent

active

046880038

ABSTRACT:
A signal source in the general form of a phase-locked loop (12, 20, 22, and 24) has its output fed to a phase modulator (32) controlled in response to the output of the phase-locked-loop phase detector (20). This provides feed-forward error correction that gives the signal source a faster response than a conventional phase-locked-loop arrangement would have.

REFERENCES:
patent: 2930001 (1960-03-01), Salmet
Omachi et al., A Digital Phase-Locked Loop Using Injection Locking Technique, Electronics and Communications in Japan, vol. 59-A, No. 6, Jun. 1976, pp. 27-36.

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