Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Reexamination Certificate
2005-12-13
2005-12-13
Nguyen, Vinh (Department: 2829)
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With rotor
C331S047000
Reexamination Certificate
active
06975106
ABSTRACT:
A method of analysis of a time interval between two selected measurement edges of interest includes locking a plurality of at least three substantially interchangeable oscillators to a common reference frequency, the oscillators containing digital locked-loop (DLL) circuit architecture. The method includes operating one oscillator as a timebase oscillator, and operating the other oscillators as edge-resettable measurement oscillators. The method further includes coupling one oscillator with a switched and physically-immutable parametric variation, producing an offset in the frequency of the coupled oscillator relative to the frequency of the other oscillators. The method includes phase-aligning each of the measurement oscillators to a triggering pulse created by one of selected measurement edges of interest, oscillating each phase-aligned measurement oscillator until its phase matches the phase of the timebase oscillator, and counting the number of oscillation cycles of the phase-aligned measurement oscillator from the time of phase-alignment until the time of phase matching.
REFERENCES:
patent: 4164648 (1979-08-01), Chu
patent: 5027085 (1991-06-01), DeVito
patent: 6295315 (2001-09-01), Frisch et al.
patent: 6469493 (2002-10-01), Muething et al.
patent: 6538516 (2003-03-01), Lenk
patent: 6640311 (2003-10-01), Knowles
patent: WO01/69328 (2001-09-01), None
Elsheimer G. Robert
Wallace Hugh S.
Wilhelmi Ceceli Ann
Agilent Technologie,s Inc.
Kobert Russell M.
Nguyen Vinh
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