Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Patent
1987-03-04
1989-01-31
Heyman, John S.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With rotor
324 73R, 377 28, G01P 2100
Patent
active
048018759
ABSTRACT:
An integrated circuit with a frequency dividing test function includes a first frequency dividing circuit which divides a given frequency signal, a second frequency dividing circuit for dividing the output signal from the first frequency dividing circuit and a single terminal receptive of external test clock pulses. A test circuit is connected to the reset terminal for inhibiting the output signal from the first frequency dividing circuit when the external test clock pulses applied to the reset terminal have a higher frequency than the divided frequency of the first output signal and for applying the external clock pulses to the second frequency dividing circuit to test the second frequency dividing circuit.
Adams Bruce L.
Heyman John S.
Seikosha Co. Ltd.
Wilks Van C.
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