Ultrasonic rangefinder

Details Ultrasonic rangefinder Ultrasonic rangefinder

1987-11-06

1989-01-10

Steinberger, Brian S.

Acoustics

Echo system

181151, 181139, 367 99, 367140, G01S 1500, H05K 500, H04R 700

Patent

active

047967269

ABSTRACT:
An ultrasonic rangefinder capable of detecting a distance between a vehicle and an object with high accuracy is shown. The measure of microphones for transmitting and receiving ultrasonic waves is chosen so that detour waves are restricted.

REFERENCES:
patent: 2795709 (1957-06-01), Camp
patent: 3234501 (1966-01-01), Sicuranza
patent: 3427866 (1969-01-01), Weighart
patent: 3512605 (1970-05-01), McCorkle
patent: 4677595 (1987-06-01), Obayashi et al.
patent: 4739860 (1988-04-01), Kobayashi et al.

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