利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

57 条记录 (耗时 0.041 秒)

    PORTABLE ULTRASOUND IMAGING SYSTEM
    15.
    发明申请
    PORTABLE ULTRASOUND IMAGING SYSTEM 审中-公开
    便携式超声波成像系统

    公开(公告)号：US20100228130A1

    公开(公告)日：2010-09-09

    申请号：US12400406

    申请日：2009-03-09

    申请人： Alice M. Chiang ,  Steven R. Broadstone

    发明人： Alice M. Chiang ,  Steven R. Broadstone

    IPC分类号： A61B8/14

    CPC分类号： G01S7/52023 ,  A61B8/00 ,  A61B8/4209 ,  A61B8/4236 ,  A61B8/4411 ,  A61B8/4455 ,  A61B8/4472 ,  A61B8/546 ,  A61B8/56 ,  G01S7/52074 ,  G01S7/5208 ,  G10K11/346

    摘要： A portable ultrasound imaging system includes a scan head coupled by a cable to a portable battery-powered data processor and display unit. The scan head enclosure houses an array of ultrasonic transducers and the circuitry associated therewith, including pulse synchronizer circuitry used in the transmit mode for transmission of ultrasonic pulses and beam forming circuitry used in the receive mode to dynamically focus reflected ultrasonic signals returning from the region of interest being imaged.

    摘要翻译： 便携式超声成像系统包括通过电缆耦合到便携式电池供电的数据处理器和显示单元的扫描头。 扫描头外壳包含一组超声波换能器和与其相关联的电路，包括用于发射模式的脉冲同步器电路，用于传输超声波脉冲和在接收模式下使用的波束形成电路，以动态聚焦从 兴趣正在成像。

    Ultrasound imaging system
    18.
    发明授权
    Ultrasound imaging system 有权

    公开(公告)号：US06638226B2

    公开(公告)日：2003-10-28

    申请号：US09966810

    申请日：2001-09-28

    申请人： Xingbai He ,  Peter P. Chang ,  Eric R. Kischell ,  Alice M. Chiang

    发明人： Xingbai He ,  Peter P. Chang ,  Eric R. Kischell ,  Alice M. Chiang

    IPC分类号： A61B800

    CPC分类号： A61B8/4427 ,  A61B8/065 ,  A61B8/463 ,  A61B8/486 ,  A61B8/488 ,  A61B8/5223 ,  A61B8/54 ,  A61B8/56 ,  G01S7/003 ,  G01S7/52044 ,  G01S7/52063 ,  G01S7/52071 ,  G01S7/5208 ,  G01S7/52082 ,  G01S7/52084 ,  G01S15/584 ,  G01S15/8979 ,  G01S15/8981

    摘要： The present invention is directed to an ultrasound imaging system and method for Doppler processing of data. The ultrasonic imaging system efficiently addresses the data computational and processing needs of Doppler processing. Software executable sequences in accordance with a preferred embodiment of the present invention determines the phase shift and the auto-correlation phase of filtered image data. In a preferred embodiment, the system of ultrasonic imaging also includes a sequence of instructions for Doppler processing that provides the functions for demodulation, Gauss Match filtering, auto-correlation calculation, phase shift calculation, frame averaging, and scan conversion implemented with Single Instruction Multiple Data (SIMD) or Multiple Instruction Multiple Data (MIMD) instructions. In a preferred embodiment, the ultrasound imaging system of the present invention includes a processing module; and memory operable coupled to the processing module, wherein the memory stores operational instructions that cause the processing module to map serial data to vector representation, calculate an auto-correlation function of the data, calculate a phase shift of the auto-correlation function to generate a monotonic function covering all values of the phase shift corresponding to a range of Doppler velocities and display the resultant images, for example, as color images.

    Multi-dimensional beamforming device
    19.
    发明授权
    Multi-dimensional beamforming device 失效
    多维波束成形装置

    公开(公告)号：US6111816A

    公开(公告)日：2000-08-29

    申请号：US965663

    申请日：1997-11-06

    申请人： Alice M. Chiang ,  Jeffrey M. Gilbert ,  Steven R. Broadstone

    发明人： Alice M. Chiang ,  Jeffrey M. Gilbert ,  Steven R. Broadstone

    IPC分类号： G01S7/523 ,  G10K11/34 ,  H01Q3/26 ,  H01Q25/00 ,  H01Q25/04 ,  G03B42/06

    CPC分类号： G01S7/52085 ,  G01S15/8927 ,  G01S7/52095 ,  G10K11/346 ,  H01Q25/00 ,  H01Q3/26 ,  H01Q3/2682

    摘要： A multi-dimensional beamforming device that performs consecutive one-dimensional operations. For example, beamsteering for a two-dimensional array can be include a projection of a beam onto each of the respective axes of the array. In such a device, a first beamforming processing element is used to form multiple beams for each array output along a given row. In a preferred embodiment, sequential output vectors from the first processing element are then applied to a transposing or corner turning memory and the data are reformatted such that all elements on a given column of the array are applied to a second beam forming processing element.

    摘要翻译： 执行连续一维操作的多维波束成形装置。 例如，用于二维阵列的波束引导可以包括将波束投影到阵列的每个相应的轴上。 在这种装置中，第一波束成形处理元件用于沿着给定的行为每个阵列输出形成多个波束。 在优选实施例中，来自第一处理元件的顺序输出矢量然后被施加到转置或转角转动存储器，并且重新格式化数据，使得阵列的给定列上的所有元素被施加到第二波束形成处理元件。

    Charge domain bit-serial multiplying digital-analog converter
    20.
    发明授权
    Charge domain bit-serial multiplying digital-analog converter 失效
    电荷域位串行倍增数字模拟转换器

    公开(公告)号：US5555200A

    公开(公告)日：1996-09-10

    申请号：US457827

    申请日：1995-06-01

    申请人： Alice M. Chiang

    发明人： Alice M. Chiang

    IPC分类号： H03H21/00 ,  G06J1/00

    CPC分类号： H03H21/0012

    摘要： A single chip adaptive filtering system including an FIR filter and circuitry for calculating updated weighting coefficients for use in associated multiplying digital-to-analog converters. The adaptive FIR filter performs the convolution of a delayed and sampled input sequence to produce a filter output. Thereafter, an error term is determined by calculating the difference between the filter output and a reference signal which corresponds to a predetermined anticipated output of the filter. The error term is then applied to a least mean square (LMS) estimation algorithm for computing updated weighting coefficients to be used by the adaptive FIR filter.

    摘要翻译： 包括FIR滤波器和用于计算用于相关联的乘法数模转换器的更新加权系数的电路的单芯片自适应滤波系统。 自适应FIR滤波器执行延迟和采样输入序列的卷积以产生滤波器输出。 此后，通过计算滤波器输出与对应于滤波器的预定预期输出的参考信号之间的差来确定误差项。 然后将误差项应用于用于计算要由自适应FIR滤波器使用的更新的加权系数的最小均方（LMS）估计算法。