Patent ID: 9297890
Filing Date: 2016-03-29
CPC Classification: G01S

Claim Text:
1. A method for generating a Doppler image by using a ultrasound system, the method comprising: transmitting an ultrasound signal to an object through a probe comprising a plurality of elements including a first element and a second element; receiving a plurality of response signals reflected from the object, the plurality of response signals including a first response Doppler signal obtained through the first element and a second response Doppler signal obtained through the second element; generating a plurality of modulated Doppler signals including first and second modulated Doppler signals, wherein a first modulated Doppler signal is generated by mixing the first response Doppler signal with a first carrier signal having a first frequency and a second modulated Doppler signal is generated by mixing the second response Doppler signal with a second carrier signal having a second frequency, the second carrier signal being different from the first carrier signal; applying, by a beam former, time delay to the plurality of modulated Doppler signals so that timing of the first modulated Doppler signal and the second modulated Doppler signal are to be coincident; separately transmitting, from the beam former to an image processor, the time delayed first modulated Doppler signal corresponding to the first element and the time delayed second modulated Doppler signal corresponding to the second element, without adding the time delayed first modulated Doppler signal to the time delayed second modulated Doppler signal; and generating, by the image processor, a Doppler image of the object based on the time delayed plurality of modulated Doppler signal including the time delayed first modulated Doppler signal and the time delayed second modulated Doppler signal.