Ultrasonic processes and circuits for performing them
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United States of America Patent
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Apr 25, 1995
Issued Date -
N/A
app pub date -
Jun 14, 1993
filing date -
Sep 1, 1988
priority date (Note) -
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Abstract
A process for selective graphic representation and/or evaluation of the Doppler spectrum of objects limitedly resistant to sonic intensity, for example biological organs and tissues, by an ultrasonic process wherein a material is introduced in the examination area to be acoustically irradiated, nonlinear oscillations are produced in the examination area by irradiated ultrasonic waves and the signal is evaluated by an ultrasonic converter. Also, a circuit for carrying out the above process is disclosed.
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