Method and system for testing the accuracy of an electronic cloc

Details Method and system for testing the accuracy of an electronic cloc Method and system for testing the accuracy of an electronic cloc

1977-09-27

1979-02-27

Tokar, M.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 78D, G01R 2314

Patent

active

041421477

ABSTRACT:
A method and system for testing the accuracy of the oscillators of electronic clocks includes transforming a frequency signal corresponding to the output of a clock oscillator into a non-sinusoidal signal having the same frequency as the frequency signal and filtering the non-sinusoidal signal to pass a component of the non-sinusoidal signal having a frequency associated with a reference frequency to be compared with the signal passed by the filter such that clock oscillators operating at various frequencies of which the reference frequency is an integral multiple can be tested since the non-sinusoidal signal, which is preferably a sawtooth signal, contains harmonic components corresponding to the reference frequency.

REFERENCES:
patent: 3013208 (1961-12-01), Voznak
patent: 3777547 (1973-12-01), Izumi

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