Device and method for generating ultrasonic scan image information

An apparatus for generating ultrasonic scan image information, by converting a one-directional rotational motion of a drive motor into a linear reciprocating motion of an ultrasonic probe connected to the drive motor, and generating an image of an object by scanning the object in two dimensions by the linear motion of the ultrasonic probe and a vertical motion perpendicular to the linear motion, comprising:

• an ultrasonic wave irradiating/receiving section that performs irradiation of an ultrasonic wave to the object through the ultrasonic probe and receives an echo signal of the irradiated ultrasonic wave through the ultrasonic probe;
• a signal converting section that receives the echo signal and converts the received echo signal into a digital image signal;
• a main controller that receives the digital image signal and generates ultrasonic image information on the object;
• and
• a trigger controller that generates a trigger signal on the basis of motion information of the ultrasonic probe,
• wherein the ultrasonic image information is generated in synchronization with the trigger signal,
• wherein the motion information of the ultrasonic probe includes rotational motion information of a rotary encoder that detects the rotational motion of the drive motor and linear motion information of a linear encoder that detects the linear motion of the ultrasonic probe, the rotary encoder is an incremental rotary encoder that outputs an A-phase signal, a B-phase signal, and a Z-phase signal in the form of pulses, respectively, and the linear encoder outputs a linear pulse signal at regular intervals in the form of pulses according to a position on a linear motion trajectory of the ultrasonic probe,
• wherein the one-directional rotational motion of the drive motor is started, a first trigger event signal is generated after generation of the Z-phase signal of the rotary encoder, and in a case where the first trigger event signal is generated, the trigger signal is generated in the form of pulses up to a preset position of the ultrasonic probe using the pulse signal of the linear encoder as a synchronization signal.