Multiplexer for ultrasonic ranging device
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United States of America Patent
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-
Jun 22, 1982
Issued Date -
N/A
app pub date -
Sep 26, 1980
filing date -
Jul 23, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A multiplexer for an ultrasonic ranging device for a vehicle having a resettable digital counter is disclosed herein. The digital counter receives a plurality of pulses from an oscillator and provides a counter output signal indicative of the stored count of the number of pulses. A plurality of logic gates are connected to the digital counter for control thereby. A plurality of ultrasonic transducers are connected to the logic gates, the logic gates sequentially energizing the transducers in response to the stored count in the digital counter.
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