Patent ID: 6958041
Filing Date: 2005-10-25
Classification: A61B,G01S

Abstract:
1. An ultrasonic imaging apparatus comprising: an ultrasonic probe having a plurality of built-in transducers for transmitting ultrasonic waves towards an object to be examined and receiving the echoes from it; means for converting each echo signal that is output from the plurality of transducers in said ultrasonic probe into digital signals; phase adjustment means for adjusting phase of echo signals by applying predetermined delay time data to each digitized echo signal that is output from said digital signal converting means; means for calculating delay time data corresponding to ultrasonic propagation velocity in the object, using the output signals from said phase adjusting means; means for performing delay control for a next ultrasonic transmission and reception by feedbacking the delay time calculated by said delay time data calculating means to said phase adjustment means; means for forming received beam signals in response to the delay control; and means for displaying an image on a displaying means by image-processing the received beam signals formed by said received beam signal forming means.