Time interval measuring instrument
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United States of America Patent
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Sep 16, 1986
Grant Date -
N/A
app pub date -
Oct 2, 1984
filing date -
Oct 7, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An input time signal and clock pulses are provided to a gate, from which the clock pulses are output for a period of time corresponding to the duration of the input time signal, and the clock pulses are applied to a time counter. The time counter is preset, for each measurement, by to a time corresponding to minimum and maximum values of a time interval to be measured and yields a validity signal for a period of time therebetween. The minimum and maximum values of the time interval to be are referenced from the start of the supply of the clock pulses. It is decided and only for whether the validity signal exists at the end of the input time signal, an input time signal that ends during the duration of the validity signal, is its measured duration utilized as valid data.
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