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    Acoustic scan conversion method and apparatus for velocity flow
    1.
    发明授权
    Acoustic scan conversion method and apparatus for velocity flow 失效
    声速扫描转换方法及装置

    公开(公告)号：US5429137A

    公开(公告)日：1995-07-04

    申请号：US253632

    申请日：1994-06-03

    申请人： Robert N. Phelps ,  Zoran B. Banjanin ,  Jin Kim

    发明人： Robert N. Phelps ,  Zoran B. Banjanin ,  Jin Kim

    IPC分类号： A61B8/06 ,  G01P5/00 ,  G01P5/24 ,  G01S7/52 ,  G01S15/50 ,  G01S15/89

    CPC分类号： G01S15/8979 ,  A61B8/06 ,  A61B8/13 ,  G01P5/001 ,  G01P5/244 ,  G01S7/52071 ,  G01S15/50 ,  G01S7/52044

    摘要： An ultrasound pulsed Doppler system detects Doppler-shifted acoustic pulses reflected from moving material in a body and received by a transducer, and displays the velocity field of the material on a screen in a color flow format together with the black-and-white display of the ultrasound B-mode of the body. The system detects the average velocity of the material at a plurality of localized sample regions in the body by determining the complex correlation function for pairs of reflected signals from each sample region that are received by the transducer, where the complex phase of the correlation function is proportional to the velocity of the material, projected along the ray from the sample region to the transducer. The display constitutes an array of pixels, and the system determines a value at each pixel that represents the velocity for the material at the location imaged by the pixel. These velocity values are determined by selecting, for each pixel, a plurality of sample regions having images neighboring the pixel, and interpolating separately the real and imaginary parts of the complex correlation value from these sample regions. These interpolated complex correlation function values are used to determine the velocity value for the pixel. The interpolation is carried out using a 2.times.4 kernel, with 2-point interpolation along the dimension of the ray and 4-point interpolation along the perpendicular azimuthal dimension. In a further improvement, the system also displays the flow turbulence field in a color flow format by determining the average power in the reflected signals from each sample region, interpolating these values to obtain a pixel power value, and using this value and the magnitude of the complex correlation function value to obtain a turbulence estimate value.

    摘要翻译： 超声波脉冲多普勒检测系统检测体内由移动材料反射并被换能器接收的多普勒频移声波脉冲，并将该材料的速度场与彩色流动格式一起显示在屏幕上，并显示黑白显示 超声B型身体。 该系统通过确定由换能器接收的来自每个采样区域的反射信号对的复数相关函数来检测身体中多个局部采样区域处的材料的平均速度，其中相关函数的复相位为 与材料的速度成比例，沿着从样品区域到换能器的射线投影。 显示器构成像素阵列，并且系统确定每个像素处的值，其表示由像素成像的位置处的材料的速度。 通过为每个像素选择具有与像素相邻的图像的多个采样区域，并且分别从这些采样区域分别复合相关值的实部和虚部来确定这些速度值。 这些内插的复相关函数值用于确定像素的速度值。 使用2x4内核进行插值，沿着光线的尺寸进行2点插值，并沿着垂直方位角度进行4点插值。 在进一步的改进中，系统还通过确定来自每个采样区域的反射信号的平均功率，内插这些值以获得像素功率值，并且使用该值和幅度的大小来显示彩色流格式的流动湍流场 复相关函数值以获得湍流估计值。

    Ultrasonic doppler imager having a spatially smoothed control signal for an adaptive tissue rejection filter
    2.
    发明授权
    Ultrasonic doppler imager having a spatially smoothed control signal for an adaptive tissue rejection filter 失效
    超声多普勒成像器具有用于自适应组织排斥滤器的空间平滑控制信号

    公开(公告)号：US5494037A

    公开(公告)日：1996-02-27

    申请号：US365660

    申请日：1994-12-29

    申请人： Zoran B. Banjanin ,  Jin Kim ,  Chris Zobkiw ,  Steven R. Marquis

    发明人： Zoran B. Banjanin ,  Jin Kim ,  Chris Zobkiw ,  Steven R. Marquis

    IPC分类号： A61B8/06 ,  G01S7/52 ,  G01S15/89 ,  A61B8/00

    CPC分类号： A61B8/06 ,  G01S15/8979 ,  G01S15/8981 ,  G01S7/52071

    摘要： An ultrasonic Doppler flow (i.e. blood) imaging and/or measuring system capable of adaptively suppressing stationary or slowly-moving non-flow (i.e. blood) signals having variable spectra from the recovered ultrasonic echoes. In accordance with the invention, the tissue signals are suppressed using a tissue rejection filter arrangement having an attenuation characteristic which is controlled based upon measured estimates of at least one spectral characteristic of the tissue signals to be removed, thereby maximizing the rejection of tissue movement signals and minimizing undesired attenuation of the blood flow signals. In accordance with an embodiment of the invention, data representative of the tissue signal movement, e.g., the spectral estimates of the tissue signals, are spatially averaged before being used to control the tissue rejection filter arrangement. In accordance with an alternative embodiment of the invention, the spatial averaging algorithm itself is adaptively changed, for example, in response to changes in the value of the power estimate of the tissue movement signals. In accordance with an even further alternative embodiment of the invention, a plurality of parallel beamforming channels are used for developing multiple sets of color flow beamlines substantially simultaneously with one another which scan an area, and velocity estimates from at least two of the sets which are representative of movement in adjacent portions in the scanned area are averaged for developing a control signal which adaptively controls the tissue rejection filter.

    摘要翻译： 超声波多普勒流（即血液）成像和/或测量系统能够自适应地抑制具有来自回收的超声回波的可变光谱的静止或缓慢移动的非流动（即，血液）信号。 根据本发明，使用具有衰减特性的组织排斥滤波器装置来抑制组织信号，所述衰减特性是基于要去除的组织信号的至少一个光谱特性的测量估计来控制的，从而最大化组织移动信号的排斥 并最小化血流信号的不期望的衰减。 根据本发明的实施例，代表组织信号移动的数据，例如组织信号的频谱估计，在被用于控制组织排斥滤波器装置之前被空间平均化。 根据本发明的替代实施例，空间平均算法本身例如根据组织移动信号的功率估计值的变化自适应地改变。 根据本发明的另一替代实施例，多个平行波束形成通道用于基本上同时扫描多个区域的彩色流束线路，并且从至少两个组合的速度估计 对扫描区域的相邻部分中的运动的代表进行平均，以开发自适应地控制组织排斥滤波器的控制信号。

    Ultrasonic doppler imager having an adaptive tissue rejection filter with variable parameters
    3.
    发明授权
    Ultrasonic doppler imager having an adaptive tissue rejection filter with variable parameters 失效
    超声多普勒成像仪具有可变参数的自适应组织排斥滤光片

    公开(公告)号：US5664575A

    公开(公告)日：1997-09-09

    申请号：US366163

    申请日：1994-12-29

    申请人： Zoran B. Banjanin ,  Jin Kim ,  Steven R. Marquis

    发明人： Zoran B. Banjanin ,  Jin Kim ,  Steven R. Marquis

    IPC分类号： A61B8/06 ,  G01S7/52 ,  G01S15/89

    CPC分类号： A61B8/06 ,  G01S15/8981 ,  G01S7/52071

    摘要： An ultrasonic Doppler flow (i.e. blood) imaging and/or measuring system capable of adaptively suppressing stationary or slowly-moving non-flow (i.e. tissue) signals having variable spectra from recovered ultrasonic echoes. In accordance with the invention, the tissue signals are suppressed using a tissue rejection filter having an attenuation characteristic which is controllably shaped based upon measured estimates of at least one spectral characteristic of the tissue signals to be removed, thereby maximizing the rejection of tissue movement signals and minimizing undesired attenuation of the blood flow signals. In accordance with one embodiment of the invention, the tissue rejection filter is embodied as a complex notch filter for filtering the baseband components of the recovered ultrasonic echoes, which filter has a variable notch shape and position as adaptively determined in response to changes in estimates of the spectral components of the tissue signal portion of the recovered echoes.

    摘要翻译： 超声波多普勒血流（即血液）成像和/或测量系统能够自适应地抑制具有来自恢复的超声回波的可变光谱的静止或缓慢移动的非流动（即组织）信号。 根据本发明，使用具有衰减特性的组织剔除滤波器来抑制组织信号，所述组织剔除滤波器基于被去除的组织信号的至少一个光谱特性的测量估计值而被可控地变形，从而最大化组织移动信号的排斥 并最小化血流信号的不期望的衰减。 根据本发明的一个实施例，组织排斥滤波器被实施为复杂陷波滤波器，用于对恢复的超声回波的基带分量进行滤波，该滤波器具有可变的切口形状和位置，以响应于 恢复的回波的组织信号部分的光谱分量。

    Ultrasonic Doppler imager having an adaptive tissue rejection filter with enhanced tissue motion sensitivity
    4.
    发明授权
    Ultrasonic Doppler imager having an adaptive tissue rejection filter with enhanced tissue motion sensitivity 失效
    超声多普勒成像器具有具有增强的组织运动灵敏度的自适应组织排斥滤器

    公开(公告)号：US5487389A

    公开(公告)日：1996-01-30

    申请号：US366067

    申请日：1994-12-29

    申请人： Zoran B. Banjanin ,  Jin Kim

    发明人： Zoran B. Banjanin ,  Jin Kim

    IPC分类号： A61B8/06 ,  G01S15/89 ,  A61B8/00

    CPC分类号： A61B8/06 ,  A61B8/13 ,  G01S15/8981 ,  G01S7/5205

    摘要： An ultrasonic Doppler flow (i.e. blood) imaging and/or measuring system capable of adaptively suppressing stationary or slowly-moving non-flow (i.e. tissue) signals having variable spectra from recovered ultrasonic echoes. In accordance with the invention, the tissue signals are suppressed using a tissue rejection filter having an attenuation characteristic which is controllably shaped based upon measured estimates of at least one spectral characteristic of the tissue signals to be removed, thereby maximizing the rejection of tissue movement signals and minimizing undesired attenuation of the blood flow signals. In accordance with one embodiment of the invention, the tissue rejection filter is embodied as a complex notch filter for filtering the baseband components of the recovered ultrasonic echoes, which filter has a variable notch shape and position as adaptively determined in response to changes in estimates of the spectral components of the tissue signal portion of the recovered echoes.

    摘要翻译： 超声波多普勒血流（即血液）成像和/或测量系统能够自适应地抑制具有来自恢复的超声回波的可变光谱的静止或缓慢移动的非流动（即组织）信号。 根据本发明，使用具有衰减特性的组织剔除滤波器来抑制组织信号，所述组织剔除滤波器基于被去除的组织信号的至少一个光谱特性的测量估计值而被可控地变形，从而最大化组织移动信号的排斥 并最小化血流信号的不期望的衰减。 根据本发明的一个实施例，组织排斥滤波器被实施为复杂陷波滤波器，用于对恢复的超声回波的基带分量进行滤波，该滤波器具有可变的切口形状和位置，以响应于 恢复的回波的组织信号部分的光谱分量。

    Quantitative color flow
    5.
    发明授权
    Quantitative color flow 失效
    定量颜色流

    公开(公告)号：US5443071A

    公开(公告)日：1995-08-22

    申请号：US322113

    申请日：1994-10-11

    申请人： Zoran B. Banjanin ,  Jin Kim

    发明人： Zoran B. Banjanin ,  Jin Kim

    IPC分类号： A61B8/06 ,  G01S15/58 ,  G01S15/89 ,  A61B8/00

    CPC分类号： G01S15/8927 ,  A61B8/06 ,  A61B8/13 ,  A61B8/488 ,  G01S15/8984

    摘要： Method for providing a quantitative color flow display of moving matter using an ultrasound imaging system, the display being formed of pixels on a display device, which method includes the steps of: (a) transmitting acoustic beams to a region of interest in the body, which region of interest includes the moving matter; (b) receiving echo beams from the region of interest; (c) obtaining, at each portion of the region of interest, which portion is referred to as a pixel, a measure of velocity of moving matter in the pixel and a measure of direction of the velocity of the moving matter in the pixel; (d) determining a maximum of the measure of velocity at each pixel in the region of interest over a predetermined period of time and the measure of direction of the maximum velocity; and (e) displaying the measures of velocity of the pixels for the predetermined period of time wherein the measures of velocity and the measure of direction of the velocity are displayed using a color indicator which is relative to the maximum measure of velocity at each pixel and to the measure of direction of the maximum velocity.

    摘要翻译： 一种使用超声波成像系统提供运动物质的定量颜色流动显示的方法，所述显示器由显示装置上的像素形成，所述方法包括以下步骤：（a）将声束传播到身体中的感兴趣区域， 哪个感兴趣的区域包括移动物体; （b）从感兴趣区域接收回波束; （c）在所述感兴趣区域的每个部分处获得哪个部分被称为像素，所述像素中的运动物质的速度的度量和所述像素中的所述运动物质的速度的方向的测量; （d）确定预定时间段内感兴趣区域中每个像素处的速度测量的最大值以及最大速度方向的测量值; 并且（e）在预定时间段内显示像素的速度测量值，其中使用相对于每个像素处的速度的最大测量值的颜色指示器来显示速度的测量和速度方向的测量，以及 到最大速度方向的测量。

    Light guide plate and liquid crystal display device having the same
    7.
    发明申请
    Light guide plate and liquid crystal display device having the same 有权
    导光板及具有该导光板的液晶显示装置

    公开(公告)号：US20080031006A1

    公开(公告)日：2008-02-07

    申请号：US11730802

    申请日：2007-04-04

    申请人： Hee Kim ,  Jin Kim ,  Jin Kim

    发明人： Hee Kim ,  Jin Kim ,  Jin Kim

    IPC分类号： F21V8/00

    CPC分类号： G02B6/0036 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0061

    摘要： A light guide plate and a liquid crystal display device having the same. The light guide plate is disposed upstream of a liquid crystal panel to refract light supplied through an edge thereof, toward the liquid crystal panel. In the light guide plate, a plate body is disposed at a side of a light source for supplying light when a supply voltage is applied. A plurality of pyramidal diffusing elements are arrayed in a predetermined pattern on a surface of the plate body. Each of the diffusing elements is rotated clockwise or counterclockwise about an axis extending through a vertex of the diffusing element perpendicularly to the surface of the plate body so that an edge of the diffusing element facing a reference line connecting a central point of the light source to a central point of the plate body is angled 10° to 35° about the reference line.

    摘要翻译： 导光板和具有该导光板的液晶显示装置。 导光板配置在液晶面板的上游侧，将通过其边缘供给的光折射到液晶面板。 在导光板中，当施加电源电压时，板体设置在用于供应光的光源的一侧。 多个金字塔形扩散元件以预定图案排列在板体的表面上。 每个扩散元件围绕延伸穿过漫射元件的顶点的轴线顺时针或逆时针旋转，垂直于板体的表面，使得漫射元件的边缘面向连接光源的中心点的参考线， 板体的中心点围绕参考线倾斜10°至35°。

    Battery pack having short circuit prevention function
    10.
    发明申请
    Battery pack having short circuit prevention function 审中-公开
    电池组具有防短路功能

    公开(公告)号：US20060097693A1

    公开(公告)日：2006-05-11

    申请号：US11250570

    申请日：2005-10-17

    申请人： Yong Kim ,  Jin Kim ,  Jin Kim

    发明人： Yong Kim ,  Jin Kim ,  Jin Kim

    IPC分类号： H02J7/00

    CPC分类号： H01M2/1066 ,  H01M2/34 ,  H02J7/0045

    摘要： Conventional rechargeable battery packs for portable electronic products possess charging terminals for connecting the battery packs to charging devices. When a portable electronic product is in use, there is a potential for short circuiting the battery pack by connecting one or more objects to the exposed charging terminals. This invention provides a battery pack for a portable electronic product with a short circuit prevention function where the charging terminal is exposed only when plugged into a charging device. By protecting the charging terminals, the invention prevents a short circuit from occurring during normal operation of the portable electronic product. The battery pack with a short circuit prevention function comprises a spring-loaded cover that is adapted to travel over the main body of the battery pack to alternately cover and expose the charging terminal.

    摘要翻译： 用于便携式电子产品的常规可再充电电池组具有用于将电池组连接到充电装置的充电端子。 当使用便携式电子产品时，通过将一个或多个物体连接到暴露的充电终端，存在电池组短路的可能性。 本发明提供了一种具有短路防止功能的便携式电子产品的电池组，其中充电端子仅在插入充电装置时才露出。 通过保护充电端子，本发明防止在便携式电子产品的正常操作期间发生短路。 具有短路防止功能的电池组包括适于在电池组的主体上移动以交替地覆盖和暴露充电端子的弹簧加载的盖。