Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1978-10-04
1980-06-03
Heyman, John S.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
328 55, 328 72, 328133, 324 83A, 324 83D, H03B 304, H04L 702
Patent
active
042064147
ABSTRACT:
There is disclosed an electrical circuit arrangement for phase-synchronizing a first pulse train with a second pulse train, in which the algebraic phase difference between each pulse of one pulse train and the next pulse of the other pulse train is measured for each of a predetermined number of pulses of one of the pulse trains. The algebraic average phase difference is then determined over the said predetermined number of pulses, and the absolute phase of the pulses of the first pulse train is then adjusted in correspondence with the average phase difference so as to bring the two pulse trains closer into phase equality.
REFERENCES:
patent: 3588710 (1971-06-01), Masters
patent: 3728635 (1973-04-01), Eisenberg
patent: 3755748 (1973-08-01), Larlow et al.
patent: 3895294 (1975-07-01), Vinding
Heyman John S.
Racal Group Services Limited
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