Oscillators – Automatic frequency stabilization using a phase or frequency... – With reference oscillator or source
Reexamination Certificate
2008-01-08
2008-01-08
Mis, David (Department: 2817)
Oscillators
Automatic frequency stabilization using a phase or frequency...
With reference oscillator or source
C331S010000, C331S018000, C331S044000, C331S046000
Reexamination Certificate
active
07317361
ABSTRACT:
An ensemble clock comprises: an input for receiving a reference signal; multiple free-running oscillators each configured to generate a corresponding free-running frequency; an output oscillator configured to generate a controlled frequency having a frequency responsive to a control signal; a differencer unit configured to derive difference measurements indicative of time and frequency-based errors associated with each of (i) the controlled frequency, and (ii) the free-running frequency, relative to the reference signal; and a controller configured to generate the control signal responsive to the difference measurements.
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Duven Dennis J.
Montgomery Bruce G.
Suter Joseph J.
Fasulo, II Albert J.
Mis David
Syntonics LLC
The Johns Hopkins University
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