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    Computer network physical-layer analysis method and system
    8.
    发明授权
    Computer network physical-layer analysis method and system 有权
    计算机网络物理层分析方法和系统

    公开(公告)号：US06829223B1

    公开(公告)日：2004-12-07

    申请号：US09474390

    申请日：1999-12-29

    申请人： William M. Richardson ,  Neil Judell

    发明人： William M. Richardson ,  Neil Judell

    IPC分类号： G01R3108

    CPC分类号： H04L43/0811 ,  H04L43/0852 ,  H04L43/16

    摘要： A method and system for computer network physical layer analysis is describe using signal analysis techniques and beginning with time-domain responses to yield highly quantitative analysis of the computer network's physical layer. Specifically, multiple transmissions are accumulated into a composite response of the computer network link. This composite response is then used as the basis for analysis of the computer network link. Further, an automated process is described for location of an arbitrary termination of a link.

    摘要翻译： 使用信号分析技术描述计算机网络物理层分析的方法和系统，并从时域响应开始，对计算机网络的物理层进行高度定量分析。 具体地，多个传输被累积到计算机网络链路的复合响应中。 然后将该复合响应用作计算机网络链路分析的基础。 此外，描述了用于链接的任意终止的位置的自动化过程。

    System and method to determine data throughput in a communication network
    9.
    发明授权
    System and method to determine data throughput in a communication network 有权
    确定通信网络中数据吞吐量的系统和方法

    公开(公告)号：US06675328B1

    公开(公告)日：2004-01-06

    申请号：US09684453

    申请日：2000-10-06

    申请人： Srivathsan Krishnamachari ,  Neil Judell

    发明人： Srivathsan Krishnamachari ,  Neil Judell

    IPC分类号： G06F1100

    CPC分类号： H04L1/242 ,  H04L1/205

    摘要： A computer network includes a transmitter, a receiver, and a communication channel system interconnecting the transmitter and receiver. All components in the system may be physical equipment or may be models having predefined operational characteristics. The predefined operational characteristics may be monitored or modified to obtain benchmarking and error rates for the computer network.

    摘要翻译： 计算机网络包括发射机，接收机和互连发射机和接收机的通信信道系统。 系统中的所有组件可以是物理设备，或者可以是具有预定义的操作特性的模型。 可以监视或修改预定义的操作特性以获得计算机网络的基准测试和错误率。

    Multiple channel interferometric surface contour measurement system
    10.
    发明授权
    Multiple channel interferometric surface contour measurement system 有权
    多通道干涉测量面轮廓测量系统

    公开(公告)号：US07751063B2

    公开(公告)日：2010-07-06

    申请号：US11910638

    申请日：2006-04-04

    申请人： Robert F. Dillon ,  Neil Judell ,  Yi Qian ,  Yunqing Zhu ,  D. Scott Ackerson ,  Gurpreet Singh

    发明人： Robert F. Dillon ,  Neil Judell ,  Yi Qian ,  Yunqing Zhu ,  D. Scott Ackerson ,  Gurpreet Singh

    IPC分类号： G01B9/02 ,  G01B11/02

    CPC分类号： G01B11/2441 ,  G01B11/2527

    摘要： Described is a multiple channel interferometric surface contour measurement system. The measurement system includes a multiple channel interferometer projector, a digital camera and a processor. The projector includes two or more interferometer channels. Each channel has an optical axis spatially separate from the optical axes of the other channels. Each channel projects a fringe pattern onto the surface of an object to be measured. Image data for the fringe patterns projected on the object surface are acquired by the digital camera. The processor controls the projection of the fringe patterns of different spatial frequencies, adjusts the phase of each fringe pattern and generates surface contour data in response to the camera image data. The multiple channel interferometric surface contour measurement system provides numerous advantages over conventional single channel interferometric systems, including reduced sensitivity to optical noise, improved stability and increased measurement accuracy.

    摘要翻译： 描述了多通道干涉测量表面轮廓测量系统。 测量系统包括多通道干涉仪投影仪，数码相机和处理器。 该投影仪包括两个或更多个干涉仪通道。 每个通道具有与其他通​​道的光轴在空间上分开的光轴。 每个通道将条纹图案投射到要测量的对象的表面上。 通过数码相机获取投影在物体表面上的条纹图案的图像数据。 处理器控制不同空间频率的条纹图案的投影，调整每个条纹图案的相位并响应于相机图像数据生成表面轮廓数据。 多通道干涉测量表面轮廓测量系统提供了许多优于传统单通道干涉测量系统的优点，包括降低对光学噪声的灵敏度，改进的稳定性和增加的测量精度。