Apparatus for automatically phase-calibrating

Details Apparatus for automatically phase-calibrating Apparatus for automatically phase-calibrating

1982-09-14

1985-12-17

Levy, Stewart J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Phase comparison

324 83FE, 328155, 377 43, G01R 2500, H03L 700, G04C 1100

Patent

active

045594929

ABSTRACT:
A phase shift between two repeated square wave signals having equal frequency and duty is detected and detected phase shift is integrated during the appointed cycles of the square wave signals and the mean value per cycle is calculated from the integrated value, and a phase of one signal is overlapped on a phase of another signal automatically at the mean value. The same phase can be automatically given to two square wave signals having different phases.

REFERENCES:
patent: 3430148 (1969-02-01), Miki
patent: 3441342 (1969-04-01), Ball et al.
patent: 3557308 (1971-01-01), Alexander et al.
patent: 3566155 (1971-02-01), De Maio et al.
patent: 3578956 (1981-05-01), McCall
patent: 3628159 (1971-12-01), Ellis
patent: 4276512 (1981-06-01), Wittke
patent: 4379221 (1983-04-01), Avins et al.
patent: 4427947 (1984-01-01), Suzuki et al.

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