Patent ID: 9211108
Filing Date: 2015-12-15
Classification: A61B,G01S

Abstract:
1. An ultrasound diagnostic imaging apparatus, comprising: an ultrasound probe which is configured to output transmission ultrasound waves toward a subject by a driving signal and to output received signals by receiving reflection ultrasound waves from the subject; a transmitting circuit which is configured to output the driving signal to the ultrasound probe to generate the transmission ultrasound waves; and a processor which is configured to control the transmitting circuit to output the driving signal, wherein the processor is configured to control the transmitting circuit to output the driving signal which includes (i) a first pulse signal region of a first voltage having a pulse width A, (ii) a second pulse signal region of a second voltage, which is different from the first voltage, having a pulse width B, the second pulse signal region being adjacent to the first pulse signal region, and (iii) a third pulse signal region of the first voltage having a pulse width A+T, the third pulse signal region being adjacent to the second pulse signal region, where A, B and T satisfy T=2A+B, and where A>0, B>0, and T>0, wherein a pulse cycle is 2 T, and wherein the processor is configured to control the transmitting circuit to output the driving signal based on a frequency response characteristic of the ultrasound probe by setting the pulse width A and the pulse width B such that a shape of a frequency characteristic of the driving signal is substantially opposite in shape to the frequency response characteristic of the ultrasound probe in a specific frequency range.