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    Wideband frequency domain reflectometry to determine the nature and location of subscriber line faults
    1.
    发明申请
    Wideband frequency domain reflectometry to determine the nature and location of subscriber line faults 失效
    宽带频域反射测定，确定用户线路故障的性质和位置

    公开(公告)号：US20050238037A1

    公开(公告)日：2005-10-27

    申请号：US10832472

    申请日：2004-04-27

    申请人： David Dodds ,  Bernardo Celaya ,  Terence Monteith

    发明人： David Dodds ,  Bernardo Celaya ,  Terence Monteith

    IPC分类号： G01R31/11 ,  H04B3/46 ,  H04L12/24 ,  H04L12/28 ,  H04M1/24 ,  H04M3/26

    CPC分类号： H04L43/50

    摘要： A technique for estimating distances and the nature of irregularities and faults on a telephone subscriber line is disclosed. Reflected test signals are measured as a function of frequency. The measurements are compensated for variable propagation velocity and variable line attenuation and then weighted before transformation with the Fourier transform. The amplitude and phase of peaks in the spectral domain identify the distances to the irregularities and the magnitude and phase angle of the reflection coefficients.

    摘要翻译： 公开了一种用于估计电话用户线上的距离和不规则性和故障性质的技术。 反射的测试信号被测量为频率的函数。 对可变传播速度和可变线衰减进行了测量，然后用傅里叶变换进行加权。 光谱域中的峰的幅度和相位标识到不规则的距离和反射系数的幅度和相位角。

    Dual configuration transceiver housing
    2.
    发明申请
    Dual configuration transceiver housing 有权
    双重配置收发器外壳

    公开(公告)号：US20050158051A1

    公开(公告)日：2005-07-21

    申请号：US10758734

    申请日：2004-01-16

    申请人： David Dodds

    发明人： David Dodds

    IPC分类号： G02B6/38 ,  G02B6/42 ,  H04B10/00

    CPC分类号： G02B6/3897 ,  G02B6/3898 ,  G02B6/4246 ,  G02B6/4284 ,  G02B6/4292

    摘要： A transceiver module is configured for insertion within a cage. The cage has a cage latch that retains the transceiver module in the cage. The transceiver module has a housing configured to receive any one of at least two different release mechanisms. Each of the release mechanisms is movable between a first position and a second position, wherein the cage latch is not deflected when the release mechanism is in the first position, and wherein the cage latch is deflected when the release mechanism is in the second position such that the transceiver module can be removed from the cage.

    摘要翻译： 收发器模块被配置为插入笼中。 保持架具有将收发器模块保持在保持架中的笼式闩锁。 收发器模块具有被配置为接收至少两个不同释放机构中的任何一个的壳体。 每个释放机构可在第一位置和第二位置之间移动，其中当释放机构处于第一位置时，保持架闩锁不会偏转，并且其中当释放机构处于第二位置时，保持架闩锁偏转， 收发器模块可以从笼中取出。

    System and method for the storage, indexing and retrieval of XML documents using relational databases
    4.
    发明申请
    System and method for the storage, indexing and retrieval of XML documents using relational databases 有权
    使用关系数据库存储，索引和检索XML文档的系统和方法

    公开(公告)号：US20060101320A1

    公开(公告)日：2006-05-11

    申请号：US10745762

    申请日：2003-12-23

    申请人： David Dodds ,  Larry Kuo ,  Soumitra Sengupta ,  William Lindsey ,  Nandit Soparkar

    发明人： David Dodds ,  Larry Kuo ,  Soumitra Sengupta ,  William Lindsey ,  Nandit Soparkar

    IPC分类号： G06F17/21

    CPC分类号： G06F17/30595 ,  G06F17/30569 ,  G06F17/30917 ,  Y10S707/99933 ,  Y10S707/99942 ,  Y10S707/99943

    摘要： A system and method for assigning attributes to XML document nodes to facilitate their storage in relational databases and the subsequent retrieval and re-construction of pertinent nodes and fragments in original document order is provided. Since these queries are performed using relational database query engines, the speed of their execution is significantly faster than that using more exotic systems such as object-oriented databases. Furthermore, this method is portable across all vendor platforms, and so can be deployed at client sites without additional investments in database software.

    摘要翻译： 提供了一种用于将属性分配给XML文档节点以促进其在关系数据库中的存储以及随后的以原始文档顺序检索和重新构建相关节点和片段的系统和方法。 由于这些查询是使用关系数据库查询引擎执行的，因此其执行速度明显快于使用诸如面向对象数据库等异域系统的速度。 此外，该方法可在所有供应商平台上进行移植，因此可以在客户端部署，无需额外投资数据库软件。