Patent ID: 7044914

Claim:
An ultrasonic diagnostic apparatus for obtaining an ultrasonic image of an object body, comprising: a transmitter configured to transmit a first ultrasonic wave and a second ultrasonic wave for each scan line, the first and second ultrasonic waves having a common predetermined fundamental frequency in their frequency bands and at least one different condition other than frequency; a receiver configured to receive first and second echo signals reflected from the object body in response to the first and second ultrasonic waves, respectively, and to generate first and second reception signals based on the first and second echo signals; a harmonic component extracting unit configured to extract a harmonic component of the fundamental frequency from the first and second reception signals; a fundamental component extracting unit configured to extract a fundamental component from at least one of the first and second reception signals; an image processor configured to produce the ultrasonic image based on the harmonic component and the fundamental component; and a display configured to display the ultrasonic image.