Bidirectional one-half rate counter
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United States of America Patent
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Jul 30, 1985
Grant Date -
N/A
app pub date -
Sep 20, 1982
filing date -
Sep 20, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A bidirectional counting circuit for use with a transducer producing two pulses per engineering unit includes an UP/DOWN counter which receives separate UP and DOWN input pulses from the transducer through respective AND gates. A synchronizing flip-flop, which switches states in response to either an UP or DOWN pulse, alternately enables the AND gates and effectively divides the input pulses by two. The state of the flip-flop is used to control a display digit to add the suffix '5' or '0' to the displayed counter content in order to display one-half engineering unit resolution. The circuit includes automatic and manual zeroing capability and a direction indicator.
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