Patent ID: 8360981

Claim:
An ultrasonic diagnostic apparatus comprising: an ultrasonic probe including plural ultrasonic transducers for transmitting ultrasonic waves toward an object to be inspected according to drive signals and receiving ultrasonic echoes propagating from the object to output reception signals; an image generating unit for supplying the drive signals to said ultrasonic probe and processing the reception signals outputted from said ultrasonic probe to generate image signals representing ultrasonic images; a display unit including a display of an impulse drive type, in which a blanking period within one field period is variable, for displaying the ultrasonic images based on the image signals generated by said image generating unit, and an adjustment circuit for adjusting a ratio of the blanking period to an image display period within one field period in said display; and a control unit for controlling said adjustment circuit to adjust the ratio of the blanking period to the image display period within one field period in said display according to at least one of a selected part to be examined and a frame rate of the image signals generated by said image generating unit.