Device for scanning and display by means of ultrasonic waves

Details Device for scanning and display by means of ultrasonic waves Device for scanning and display by means of ultrasonic waves

1978-09-18

1980-08-26

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

73626, G01N 2904

Patent

active

042198461

ABSTRACT:
A device for scanning and display by means of ultrasonic waves, comprising an electro-acoustic converter including a rectangular matrix of transducers. A number of switching members are adapted to select a rectangular scanning zone in the matrix, to group the transducers in the scanning zone in annular concentric configurations, and to displace the scanning zone in the longitudinal direction of the matrix.

REFERENCES:
patent: 3919683 (1975-11-01), Itamura

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