Device for determining the position of a sound source

Details Device for determining the position of a sound source Device for determining the position of a sound source

1979-11-28

1982-02-23

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Distance or direction finding

With time interval measuring means

367125, G01S 752

Patent

active

043171869

ABSTRACT:
A device for determining the position of a sound source includes a plurality of sensors disposed on an object for which the sound source is to be detected and organized in the form of a matrix with N rows and M columns. The sensors are connected in parallel through respective uni-directional transmission elements with a common terminal for each row and each column. A signal processing circuit amplifies and carries out a designated output waveform generation process on detected signals produced by the sensors. Means are also included for identifying the order of detection by each sensor on the basis of the phase differences of the generated output waveform signals, for determining among the output signals from the common terminals of each row and each column a signal with identical phase, for identifying a common terminal from which the signal with the identical phase was transmitted, and for identifying the sensor which produced the detected signal from the identification of the row and column which transmitted the detected signal with the identical phase, whereby the position of the sound source may be determined from the position of each of the sensors and the order of detection.

REFERENCES:
patent: 3875381 (1975-04-01), Wingfield et al.
patent: 4009463 (1977-02-01), Vercellotti et al.

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