Patent ID: 8670287

Claim:
An ultrasound apparatus comprising: an ultrasound probe which comprises multiple oscillators for generating and detecting an ultrasound wave; a control unit for controlling the ultrasound probe to generate an ultrasound wave as a main lobe and to detect an ultrasound wave from a focusing position in a direction of the main lobe; and a storage unit for storing intensities of ultrasound waves detected by the multiple oscillators as time-series signals, wherein: among the multiple oscillators, oscillators included within a distance of d 0 ·tan θ or less from a center oscillator of an aperture are selected as a reception aperture, where, when the direction of the main lobe is substantially perpendicular to the aperture of the ultrasound probe, with respect to the direction substantially perpendicular, d 0 is a distance from the aperture to an object positioned in a direction of a side lobe, and θ is an angle between the main lobe and the side lobe; and among the signals stored in time-series in the storage unit, a signal received in time order from an end of the reception aperture to another end is subtracted from the signals stored in time-series in the storage unit.