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35 条记录 (耗时 0.039 秒)

    Ultrasonic diagnostic imaging with cordless scanhead transmission system
    25.
    发明授权
    Ultrasonic diagnostic imaging with cordless scanhead transmission system 有权
    超声波诊断成像与无绳扫描头传输系统

    公开(公告)号：US06113547A

    公开(公告)日：2000-09-05

    申请号：US197186

    申请日：1998-11-20

    申请人： Leo R. Catallo ,  Juin-Jet Hwang ,  Lauren S. Pflugrath

    发明人： Leo R. Catallo ,  Juin-Jet Hwang ,  Lauren S. Pflugrath

    IPC分类号： G01N29/44 ,  A61B8/00 ,  G01N29/26 ,  G01S7/00 ,  G01S7/521 ,  G01S15/89 ,  H04L12/28 ,  A61B8/14

    CPC分类号： G01S15/899 ,  G01S7/003 ,  G01S7/5208 ,  G01S7/52079 ,  H04W28/18

    摘要： An ultrasonic diagnostic imaging system is provided with cordless scanheads which wirelessly transmit ultrasonic image signals to the imaging system. The transmitted image signals are accompanied by header and trailer information which identify display characteristics of the image signals for accurate processing and display by the ultrasound system, and also delineates discrete units of information such as data for a complete scanline or image frame. Communication protocol headers and trailers are described which define the communication and coding protocols for the transmitted ultrasound information.

    摘要翻译： 超声诊断成像系统具有无线扫描头，其将超声图像信号无线传输到成像系统。 发送的图像信号伴随有标题和报尾信息，其标识图像信号的显示特征以用于超声系统的精确处理和显示，并且还描绘诸如用于完整扫描线或图像帧的数据的信息的离散单位。 描述了定义所发送的超声信息的通信和编码协议的通信协议报头和尾部。

    Circuit for monitoring contact of ultrasound transducer with patient
    28.
    发明授权
    Circuit for monitoring contact of ultrasound transducer with patient 失效
    用于监测超声波换能器与患者接触的电路

    公开(公告)号：US4603702A

    公开(公告)日：1986-08-05

    申请号：US710358

    申请日：1985-03-11

    申请人： Juin-Jet Hwang ,  Ronald E. McKeighan ,  Paul M. Jaeger

    发明人： Juin-Jet Hwang ,  Ronald E. McKeighan ,  Paul M. Jaeger

    IPC分类号： A61B8/14 ,  A61B8/00 ,  G01N29/30 ,  G01S7/52 ,  G01S7/521 ,  A61B10/00

    CPC分类号： G01N29/30 ,  A61B5/6843 ,  G01S7/5205 ,  A61B8/4281 ,  G01S7/52079

    摘要： A circuit for controlling a patient exposure timer used to measure the time which a patient has been exposed to ultrasound energy is disclosed. The circuit operates by measuring a signal representative of whether an ultrasound transducer is coupled to air or to a patient. If the transducer is coupled to a patient, then the exposure timer is turned on. In the case of a mechanical scanhead, such as an oscillating scanhead or a rotating scanhead, the exposure timer control circuit can also be used to control the mechanical movement of the scanhead itself.

    摘要翻译： 公开了一种用于控制用于测量患者暴露于超声能量的时间的患者暴露计时器的电路。 该电路通过测量代表超声换能器是否耦合到空气或者患者的信号而工作。 如果传感器耦合到患者，则打开曝光定时器。 在诸如振动扫描头或旋转扫描头的机械扫描头的情况下，曝光定时器控制电路也可用于控制扫描头本身的机械运动。

    Scan conversion apparatus and method
    29.
    发明授权
    Scan conversion apparatus and method 失效
    扫描转换装置和方法

    公开(公告)号：US4581636A

    公开(公告)日：1986-04-08

    申请号：US596204

    申请日：1984-04-02

    申请人： David M. Blaker ,  Juin-Jet Hwang ,  Christopher P. Zobkiw

    发明人： David M. Blaker ,  Juin-Jet Hwang ,  Christopher P. Zobkiw

    IPC分类号： A61B8/14 ,  A61B8/00 ,  G01N29/04 ,  G01N29/26 ,  G01S7/298 ,  G01S7/52 ,  G01S7/531 ,  G01S7/539 ,  G01S7/62 ,  G01S15/89 ,  G06F17/17 ,  G06T11/00 ,  H04N7/01

    CPC分类号： G06F17/175 ,  G01S15/8993 ,  G01S7/52044 ,  G01S7/52063 ,  G06T11/40

    摘要： An improved scan converter for converting received echo signals representative of the amplitude of ultrasound energy returning from sampled points along a plurality of spaced apart paths distributed in an image space into signals to be displayed as display pixels in a raster scan display system. The scan converter includes a scan data memory for storing the received echo signals in quadrants of the scan data memory. Each quadrant is associated with even and odd numbered paths and sample row combinations. Sample rows are related to sample points along the spaced apart paths. The scan converter further includes a circuit for determining a gray scale value to be assigned to each selected display pixel based on a predetermined combination of four received echo signals adjacent the selected display pixel and chosen from the quadrants of the scan data memory. The improved scan converter is capable of operation in both linear and sector scan modes, and, when in the sector mode, over 90.degree. and 180.degree. sectors. Variable scaling between the image space and display space and correction of the hose error when the scanning system employs an oscillating wobbler scan head are provided. Various techniques for converting display pixel rectangular coordinates into polar coordinates in real time for raster scan display are employed.

    摘要翻译： 一种改进的扫描转换器，用于将表示从分布在图像空间中的多个间隔开的路径的采样点返回的超声能量的振幅的接收的回波信号转换成在光栅扫描显示系统中被显示为显示像素的信号。 扫描转换器包括扫描数据存储器，用于将接收到的回波信号存储在扫描数据存储器的象限中。 每个象限与偶数和奇数编号的路径和采样行组合相关联。 样本行与沿间隔开的路径的采样点相关。 扫描转换器还包括用于基于与所选择的显示像素相邻并从扫描数据存储器的象限中选择的四个接收到的回波信号的预定组合来确定要分配给每个选择的显示像素的灰度值的电路。 改进的扫描转换器能够在线性和扇形扫描模式下工作，并且在扇区模式下，能够在90度和180度的扇区中运行。 提供了扫描系统采用振荡摆动扫描头时，图像空间与显示空间之间的可变缩放以及软管错误的校正。 采用用于光栅扫描显示实时地将显示像素直角坐标转换为极坐标的各种技术。

    Computed volume sonography
    30.
    发明授权
    Computed volume sonography 有权
    计算体积超声检查

    公开(公告)号：US09213086B2

    公开(公告)日：2015-12-15

    申请号：US11768678

    申请日：2007-06-26

    申请人： Juin-Jet Hwang ,  Clinton T. Siedenburg ,  Ramachandra Pailoor ,  Mitchell Kaplan ,  Garet G. Nenninger

    发明人： Juin-Jet Hwang ,  Clinton T. Siedenburg ,  Ramachandra Pailoor ,  Mitchell Kaplan ,  Garet G. Nenninger

    IPC分类号： G01S7/52 ,  G01S15/89

    CPC分类号： G06T11/60 ,  A61B8/4483 ,  A61B8/461 ,  G01S7/52074 ,  G01S15/8993

    摘要： A system performs ultrasound parameter estimation at specific advantageous sets of points in a two- or three-dimensional field of view within re-configurable, massively parallel, programmable architectures. A power efficient system is used for processing the data, thereby increasing the ability of the system for mobile ultrasound applications. Various architectural aspects provide the ability to simultaneously accept a large number of channels of data characterized by a continuous, simultaneous flow at high sample rates. The input data is routed at high rates to a distributed and large number of processing elements, memory, and connections for simultaneous parameter estimation at multiple points in the field of view, thereby enabling data streaming through the architecture.

    摘要翻译： 系统在可重新配置的，大规模并行的可编程架构中的二维或三维视场中的特定有利的点集上执行超声参数估计。 使用功率有效的系统来处理数据，从而增加了用于移动超声应用的系统的能力。 各种架构方面提供同时接收大量数据通道的能力，其特征在于以高采样率连续同时流动。 输入数据以高速率被路由到分布式和大量的处理元件，存储器和连接，用于在视场中的多个点同时进行参数估计，从而使得能够通过架构进行数据流传输。