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    Methods and apparatus for adaptive filters
    31.
    发明授权
    Methods and apparatus for adaptive filters 失效
    自适应滤波器的方法和装置

    公开(公告)号：US06308192B1

    公开(公告)日：2001-10-23

    申请号：US09201351

    申请日：1998-11-30

    Applicant: Shayne Messerly

    Inventor： Shayne Messerly

    IPC: G06F1710

    CPC classification number: H03H21/0012

    Abstract: The present invention relates to improved adaptive filtering techniques and architectures. Preferably, this filtering is performed as part of the digital processing that occurs with a digital signal processor. It is a feature of this invention that the adaptive filtering taught herein provides the advantages of both serial and parallel architectures, without the accompanying disadvantages thereof. In particular, an adaptive filter is taught that possesses low pin counts, fast processing times suitable for high-speed applications and reduced numbers of filter elements. In a preferred embodiment, the inputs and outputs of the adaptive filter are supplied to and from the adaptive filter in a serial manner while the processing is performed internally within the adaptive filter in a parallel manner. The parallel processing is preferably effected by a delayed least-means-squares algorithm implemented using a single adder, a single multiplier and a single multiplier-accumulator instead of by numerous such adders, multipliers and multiplier-accumulators.

    Abstract translation: 本发明涉及改进的自适应滤波技术和架构。 优选地，该滤波作为数字信号处理器发生的数字处理的一部分来执行。 本发明的一个特征是本文教导的自适应滤波器提供了串行和并行架构的优点，而没有其伴随的缺点。 特别地，教导了具有低引脚数，适合于高速应用的快速处理时间和减少数量的滤波器元件的自适应滤波器。 在优选实施例中，自适应滤波器的输入和输出以串行方式提供给自适应滤波器，并且在自适应滤波器内部以并行方式执行处理。 并行处理优选地通过使用单个加法器，单个乘法器和单个乘法器累加器而不是由许多这样的加法器，乘法器和乘法器累加器实现的延迟最小均方算法来实现。

    SYSTEMS AND METHODS FOR POSITIONING A CATHETER
    34.
    发明申请
    SYSTEMS AND METHODS FOR POSITIONING A CATHETER 有权
    用于定位导管的系统和方法

    公开(公告)号：US20090203989A1

    公开(公告)日：2009-08-13

    申请号：US12369625

    申请日：2009-02-11

    Applicant: Eddie K. Burnside ,  Shayne Messerly ,  Robert N. Golden ,  Rand W. Lee

    Inventor： Eddie K. Burnside ,  Shayne Messerly ,  Robert N. Golden ,  Rand W. Lee

    IPC: A61B5/05

    CPC classification number: A61B5/062 ,  A61B1/00158 ,  A61B5/05 ,  A61B5/06 ,  A61B5/6851 ,  A61B5/6852 ,  A61B5/72 ,  A61B5/742

    Abstract: A method for displaying a position of a medical device, such as a catheter, during insertion of the medical device into a patient is disclosed. In one example embodiment, the method includes obtaining a first set of detected position data relating to a location marker, then determining a possible first position of the location marker. A first confidence level relating to a match between the first set of detected position data and a first set of predicted position data is assigned. A determination is made whether the first confidence level meets or exceeds a first threshold. If the first confidence level meets or exceeds the first threshold, a determination is then made whether the first position of the location marker is within a first detection zone. If the first position of the location marker is within the first detection zone, the first position of the location marker is displayed.

    Abstract translation: 公开了一种用于在将医疗装置插入患者体内时显示诸如导管的医疗装置的位置的方法。 在一个示例性实施例中，该方法包括获得与位置标记相关的第一组检测到的位置数据，然后确定位置标记的可能的第一位置。 分配与第一组检测位置数据和第一组预测位置数据之间的匹配相关的第一置信水平。 确定第一置信度是否满足或超过第一阈值。 如果第一置信度达到或超过第一阈值，则确定位置标记的第一位置是否在第一检测区内。 如果位置标记的第一位置在第一检测区域内，则显示位置标记的第一位置。

    LOW POWER ULTRASOUND SYSTEM
    36.
    发明申请
    LOW POWER ULTRASOUND SYSTEM 有权
    低功率超声系统

    公开(公告)号：US20080255451A1

    公开(公告)日：2008-10-16

    申请号：US12100983

    申请日：2008-04-10

    Applicant: Ben Cohen ,  Dylan K. Robles ,  Shayne Messerly

    Inventor： Ben Cohen ,  Dylan K. Robles ,  Shayne Messerly

    IPC: A61B8/00

    CPC classification number: A61B8/145 ,  A61B8/4472 ,  A61B8/4483 ,  A61B8/461 ,  A61B8/5207 ,  A61B8/56 ,  G01S7/003 ,  G01S7/52017 ,  G01S7/5208 ,  G01S7/52082 ,  G01S7/52085 ,  G01S7/52096 ,  G01S15/8909

    Abstract: A low power ultrasound system for use in sonography applications, including vascular imaging, is disclosed. In one embodiment, the low power ultrasound system comprises a base unit that includes an image processor and a display. An ultrasound probe is operably connected to the base unit. The probe includes a head portion including an array of crystal transducers. A plurality of pulser/receiver modules that cause the transducers to emit ultrasonic transmit pulses are also included in the probe. The pulser/receiver modules are further configured to receive analog signals relating to ultrasonic echo receive pulses detected by the transducers. The probe includes a singular low noise amplifier that amplifies the analog signals, and an analog-to-digital converter that converts the analog signals to a digital signal. A wireless interface is included for enabling the digital signal to be wirelessly transmitted from the probe to the image processor of the base unit.

    Abstract translation: 公开了一种用于超声波应用的低功率超声系统，包括血管成像。 在一个实施例中，低功率超声系统包括包括图像处理器和显示器的基本单元。 超声探头可操作地连接到基座单元。 探头包括包括晶体换能器阵列的头部。 导致换能器发射超声波发射脉冲的多个脉冲发生器/接收器模块也包括在探头中。 脉冲发生器/接收器模块还被配置为接收与由换能器检测到的超声回波接收脉冲有关的模拟信号。 该探头包括放大模拟信号的单个低噪声放大器，以及将模拟信号转换为数字信号的模数转换器。 包括无线接口，用于使数字信号从探头无线传输到基本单元的图像处理器。

    Parallel to serial asynchronous hardware assisted DSP interface
    37.
    发明授权
    Parallel to serial asynchronous hardware assisted DSP interface 失效
    并行串行异步硬件辅助DSP接口

    公开(公告)号：US06378011B1

    公开(公告)日：2002-04-23

    申请号：US09322744

    申请日：1999-05-28

    Applicant: David Moore ,  Shayne Messerly

    Inventor： David Moore ,  Shayne Messerly

    IPC: G06F1314

    CPC classification number: G06F13/385

    Abstract: Parallel data is serialized and transmitted and asynchronous data is received and placed into parallel bytes using a hardware assisted interface. The interface can be driven with very little overhead to the DSP. Additional timing registers and enhanced data buffers decrease the necessary DSP resource commitment. Furthermore the hardware settings in the interface can be adjusted by the DSP to optimize the interface's performance in transmitting various asynchronous protocols.

    Abstract translation: 并行数据被序列化和传输，异步数据被接收并且使用硬件辅助接口并入并行字节。 该接口可以以非常小的开销驱动DSP。 额外的定时寄存器和增强型数据缓冲器可减少必要的DSP资源承诺 此外，接口中的硬件设置可以由DSP调整，以优化接口在传输各种异步协议方面的性能。

    Interrupt request control module with a DSP interrupt vector generator
    38.
    发明授权
    Interrupt request control module with a DSP interrupt vector generator 失效
    具有DSP中断向量生成器的中断请求控制模块

    公开(公告)号：US06356970B1

    公开(公告)日：2002-03-12

    申请号：US09322955

    申请日：1999-05-28

    Applicant: Harrison Killian ,  David Moore ,  Jeff Harrell ,  Shayne Messerly ,  Brady Brown ,  Garn Morrell ,  Gerald Wilson

    Inventor： Harrison Killian ,  David Moore ,  Jeff Harrell ,  Shayne Messerly ,  Brady Brown ,  Garn Morrell ,  Gerald Wilson

    IPC: G06F1324

    CPC classification number: G06F13/26

    Abstract: In a system having an DSP, an ASIC and a memory, in which the ASIC generates a number of different competing interrupts for the DSP to service, the ASIC has an interrupt request control module which automatically provides the DSP with a vector pointing to the memory location of the interrupt service routine for the currently pending interrupt request having the highest priority of all pending requests. The DSP reads this vector and uses it to access the interrupt service routine in the memory. Reading of this vector causes the interrupt request to be de-asserted, which causes the next highest priority pending interrupt request to become the highest priority pending interrupt request. As a result, a new vector is presented for the next read by the DSP.

    Abstract translation: 在具有DSP，ASIC和存储器的系统中，ASIC产生许多不同的竞争中断以供DSP服务，ASIC具有中断请求控制模块，其自动向DSP提供指向存储器的向量 当前待处理的中断请求的中断服务程序的位置具有所有待处理请求的最高优先级。 DSP读取该向量并使用它访问存储器中的中断服务程序。 读取此向量将导致中断请求被取消置位，这将导致下一个最高优先级待处理中断请求成为最高优先级的待处理中断请求。 因此，提出了一个新的矢量供DSP下一次读取。

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