Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1975-09-18
1977-04-12
Rolinec, Rudolph V.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324178, G01R 2302
Patent
active
040177947
ABSTRACT:
An electronic circuit has a plurality of input terminals. Application of a first input signal to any one of the terminals initiates a timing sequence. Later inputs to the same terminal are ignored but a later input to any other terminal of the plurality generates a signal which can be used to measure the time difference between the later input and the first input signal. Also, such time differences may be measured between the first input signal and an input signal to any other terminal of the plurality or the circuit may be reset at any time by an external reset signal.
REFERENCES:
patent: 3304504 (1967-02-01), Horlander
patent: 3569830 (1971-03-01), Gass
Carlson Dean E.
Churm Arthur A.
Reynolds Donald P.
Rolinec Rudolph V.
The United States of America as represented by the United States
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