Object confirming apparatus

Details Object confirming apparatus Object confirming apparatus

1979-02-05

1981-06-30

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Echo systems

Returned signal used for control

G01S 1502

Patent

active

042766214

ABSTRACT:
An object confirming apparatus receives ultrasonic wave pulses periodically transmitted from a transmitter and confirms them a plural number of times according to the periodicity of the transmitted pulses so that a confirming signal may be generated which is free from the influence of noise.

REFERENCES:
patent: 3271730 (1966-09-01), Stedtnitz
patent: 3854115 (1974-12-01), Barthelemy

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