An ultrasonic diagnostic apparatus for performing data transfer between an ultrasonic probe and an ultrasonic diagnostic apparatus main body. The ultrasonic diagnostic apparatus includes: the ultrasonic probe for generating drive signals such that a broad first ultrasonic beam covering a tissue area within an object is transmitted from a first subset of plural elements and then generating drive signals such that a broad second ultrasonic beam is transmitted from a second subset of the plural elements that have been shifted from the first subset by a pitch larger than that of one element, and converting parallel raw data including information on tissue areas generated based on reception signals into serial raw data and the ultrasonic diagnostic apparatus main body for performing reception focusing processing on the raw data transmitted from the ultrasonic probe to generate an image signal.
