Digital rate monitor
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United States of America Patent
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Aug 16, 1983
Grant Date -
N/A
app pub date -
Mar 17, 1980
filing date -
Mar 17, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A digital rate monitor including a microprocessor operating under program control to receive and process event pulses to calculate the rate of the event pulses, and display the calculated rate. The rate is calculated by accumulating a batch of pulses and measuring the time it takes to accumulate such number of pulses. The batch size for a given calculation is a function of the event pulse rate, and a different batch size is automatically selected if the event pulse rate increases or decreases within a certain range. The rate is calculated once per second by averaging sixteen pulses for high speed inputs, four pulses for intermediate rates, and using a single pulse for low speed inputs.
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