Precision phase synchronization of free-running oscillator outpu

Details Precision phase synchronization of free-running oscillator outpu Precision phase synchronization of free-running oscillator outpu

1985-04-26

1986-07-15

LaRoche, Eugene R.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Afc with logic elements

331 20, 358158, H03L 700, H04N 504

Patent

active

046008950

ABSTRACT:
A synchronization circuit for a free-running oscillator, in which a multi-tapped delay line provides delayed outputs incrementally spaced throughout the period and at the same frequency as the oscillator. That delayed signal closest in time to a reference signal is selected as the output signal, synchronized to the reference signal.

REFERENCES:
patent: 4475088 (1984-10-01), Beard
McGovern, T. L. et al., "Triad Incremental Phase Shifter" APL Technical Digest, vol. 12, No. 4, Oct.-Dec. 1973, pp. 2-11.
"Digital Video Synchronizer XTAL Oscillator Phase Selector RCS-401" Preliminary Specification; Third Domain, Inc., 1/21/85.

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