Ultrasonic beam forming system

Details Ultrasonic beam forming system Ultrasonic beam forming system

1992-03-20

1993-07-13

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

367138, G01S 1500

Patent

active

052280071

ABSTRACT:
An ultrasonic wave beam former including: a ultrasonic wave probe (1) equipped with a plurality of transducers (2) for converting a ultrasonic wave signal to an electric signal for effecting a dynamic focus by multiplying each channel signal as an output signal from each of the transducers (2) by a reference wave signal having the phase which is dynamically adjusted for each channel, and adding together each after-multiplication signal after the multiplication through a delay line (3), characterized in that at least two kinds of reference signals having mutually different frequencies are provided for each of the channels and at least two multipliers (10) are also provided;

REFERENCES:
patent: 3950723 (1976-04-01), Gilmour
patent: 4140022 (1979-02-01), Maslak
patent: 4662223 (1987-05-01), Riley et al.

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