Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison
Patent
1975-10-20
1976-10-05
Rolinec, R. V.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Phase comparison
324 79D, 328 14, 307227, G01R 2500
Patent
active
039847713
ABSTRACT:
Digital apparatus employing a direct frequency synthesizer for accurately measuring the phase difference between a received signal and a phase reference signal by calculating a coarse value based on the synthesizer's internal clock and subtracting therefrom a correction based on triangular relationships in the vicinity of the received signal's actual zero crossing point.
REFERENCES:
patent: 3337863 (1967-08-01), Lender
patent: 3689914 (1972-09-01), Butler
Nossen Edward Joachim
Starner Eugene Richard
Norton Edward J.
RCA Corporation
Rolinec R. V.
Tokar Michael J.
Wright Carl M.
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