Ultrasonic device and control method of ultrasonic device

A method of controlling an ultrasonic device that includes:

• a plurality of oscillation elements configured to generate ultrasonic waves toward a subject, and generate voltages according to ultrasonic waves reflected by the subject;
• and
• a data generator configured to generate a predetermined number of sets of time-series data, each of the sets indicating change in time in a plurality of voltages generated by a predetermined number of oscillation elements, among the voltages generated by the plurality of oscillation elements,
• the method comprising:
• accumulating the sets of time-series data generated by the data generator in a data accumulator;
• selecting time-series data from among those generated by the data generator or time-series data from among those accumulated in the data accumulator;
• extracting sets of data of predetermined amounts of delays from a predetermined number of selected time-series data;
• adding the sets of extracted data of the predetermined amounts of delays;
• generating image data at one of a plurality of positions of a measurement region of the subject, based on the added data;
• and
• causing the data generator to stop generating time-series data while the selector selects the time-series data accumulated in the data accumulator such that a power consumption of the ultrasonic device is reduced according to a number of lines of the image data generated using the time-series data.