Multiplexer for ultrasonic ranging device

Details Multiplexer for ultrasonic ranging device Multiplexer for ultrasonic ranging device

1980-09-26

1982-06-22

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

367138, 367903, 370 32, G01S 1588

Patent

active

043366058

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.

REFERENCES:
patent: 3757285 (1973-09-01), Ferre
patent: 3876938 (1975-04-01), Ohta et al.
patent: 4045766 (1977-08-01), Iida et al.
patent: 4225951 (1980-09-01), Menin et al.

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