Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1990-09-28
1991-12-31
Wieder, Kenneth A.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 79D, 377 47, 377 49, G01R 2302
Patent
active
050775197
ABSTRACT:
A frequency conversion system for converting a pulse period into a frequency value by calculating a reciprocal value of a binary digit value of a pulse period from a remote period counter. The system uses the binary digit as a divisor and successively adds the divisor until a running sum results in (1) greater than a chosen dividend value or (2) the number of additions needed to reach a chosen dividend value is reached. A second embodiment is included which contains a local period counter.
REFERENCES:
patent: 3525039 (1970-08-01), Mindheim
patent: 4093850 (1978-06-01), Karnowski
patent: 4301405 (1981-11-01), Carlson
patent: 4788646 (1988-11-01), Herzl
Hammond Kevin R.
Hutchings Donald E.
Markow Paul A.
Chrysler Corporation
Fredericks Wendell K.
Solis Jose M.
Wieder Kenneth A.
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