Pulse counter circuit and displacement measuring device
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United States of America Patent
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Jun 30, 1992
Grant Date -
N/A
app pub date -
Sep 28, 1990
filing date -
Sep 29, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a pulse counting circuit for counting pulse signals comprising a first pulse signal generating means for generating a first pulse signal corresponding to an input signal, a counting means for counting at least either of said first pulse signal and a second pulse signal which differ from said first pulse signal corresponding to said input signal, said first pulse signal possessing a pitch set smaller than that of said second pulse signal, and a control means for selectively controlling the operation of said count means for counting said first and second pulse signal.
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