G - Physics – 01 – S
Patent
G - Physics
01
S
349/47
G01S 7/52 (2006.01) G01S 15/02 (2006.01) G01S 15/89 (2006.01)
Patent
CA 1230406
13 ABSTRACT: "Device for the examination of objects by means of ultra- sound echography." A device forthe scanning of objects by means of ultrasound echography, comprising at least one ultrasound transducer (10) which is connected to a transmitter stage (20) and to a receiver stage (30) which comprises an amplifier (40), a correction circuit (50) for the correc- tion of the gain as a function of time, and a processing circuit (60) for the processing of the results of the echo- graphic examination. The device is characterized in that the receiver and processing stage also comprises a circuit (70) which is connected to the output of the assembly formed by the amplifier and the gain correction circuit and which comprises means for determining the instantaneous frequency and the instantaneous energy of the echographic signal and also means for weighting the instantaneous frequency with the instantaneous energy, and also com- prises a diffraction correction circuit (80).
470050
Cardoso Jean-Francois
Fink Mathias A.
N.v.philips'gloeilampenfabrieken
Van Steinburg C.e.
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