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    • 5. 发明授权
    • 초음파 도플러 영상 장치 및 그 제어 방법
    • 超声多普勒成像装置及其控制方法
    • KR101652727B1
    • 2016-09-09
    • KR1020150054063
    • 2015-04-16
    • 서강대학교산학협력단
    • 유양모여선미김효희
    • A61B8/08A61B8/06A61B8/14
    • 초음파도플러영상장치의제어방법이개시된다. 본초음파도플러영상장치의제어방법은한 세트를이루는기설정된개수의평면파를순차적으로반복하여대상체로송신하고, 평면파가대상체에서반사된에코신호를수신하여입사프레임을획득하는단계, 평면파에대응되는순차적인입사프레임중 기설정된개수의입사프레임을합성하여앙상블프레임을생성하는단계, 앙상블프레임을구성하는기설정된개수의입사프레임중 첫번째입사프레임을제외하고, 마지막입사프레임의다음순서의입사프레임을추가하여다음앙상블프레임을생성하는단계, 다음앙상블프레임을생성하는단계를반복하는단계및 기설정된개수의앙상블프레임을이용하여도플러영상을생성하고, 생성된도플러영상을디스플레이하는단계를포함한다.
    • 本发明公开了一种超声多普勒成像装置的控制方法,其能够在没有可测量血速的限制的情况下以高分辨率和灵敏度获得图像。 超声波多普勒成像装置的控制方法包括:通过接收从被检体反射的平面波的回波信号,将一组中的规定数量的平面波重复依次发送到被检体,获得入射帧的步骤; 通过组合对应于平面波的顺序入射帧的预定数量的入射帧来产生整体帧的步骤; 通过将除了构成合奏帧的预定数量的入射帧的第一入射帧之外的最终入射帧旁边的入射帧相加,生成下一个合奏帧的步骤; 重复生成下一集合帧的步骤的步骤; 以及使用所述预定数量的合成帧生成多普勒图像并显示所生成的多普勒图像的步骤。
    • 9. 发明公开
    • 다상 보간필터를 이용한 멀티 빔 집속 장치 및 방법
    • 多波束形成装置和使用多相插值滤波器的方法
    • KR1020140086575A
    • 2014-07-08
    • KR1020120157248
    • 2012-12-28
    • 서강대학교산학협력단
    • 장진호김성호조한진유양모송태경
    • A61B8/14G06F19/00
    • A61B8/56
    • The present invention relates to an apparatus and a method for multi-beam focusing using a polyphase interpolation filter. The apparatus comprises a receiving unit, in which a plurality of channels arranged in a shape of an array receive RF data; an ADC unit which converts the RF data received by each channel from an analog state to a digital state; a channel memory unit which stores the RF data converted to the digital state into each channel; a data extraction unit which extracts the RF data in a coarse delay state from the channel memory unit; a delay value calculation unit which calculates an accurate delay value for the extracted RF data; a polyphase interpolation filter unit which interpolates the accurate delay value; and a beam focus unit which focuses a beam signal from the RF data, in which the accurate delay value is interpolated. According to the described configuration, the apparatus and the method for multi-beam focusing using a polyphase interpolation filter according to the present invention may improve the accuracy of beam focusing by calculating the accurate delay of the RF data without increasing the operating frequency of the system.
    • 本发明涉及使用多相插值滤波器进行多光束聚焦的装置和方法。 该装置包括接收单元,其中布置成阵列形状的多个通道接收RF数据; ADC单元,其将由每个通道接收的RF数据从模拟状态转换为数字状态; 信道存储单元,其将转换为数字状态的RF数据存储到每个信道中; 数据提取单元,其从所述通道存储单元提取粗略延迟状态的RF数据; 延迟值计算单元,其计算所提取的RF数据的精确延迟值; 多相插值滤波器单元,其对所述精确延迟值进行内插; 以及聚焦单元,其聚焦来自RF数据的波束信号,其中精确的延迟值被内插。 根据上述结构,使用根据本发明的多相插值滤波器的多光束聚焦装置和方法可以通过在不增加系统的工作频率的情况下计算RF数据的精确延迟来提高光束聚焦的精度 。