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    • 67. 发明申请
    • Method and apparatus for out-of-band XDSL troubleshooting and testing
    • 用于带外XDSL故障排除和测试的方法和设备
    • US20070217338A1
    • 2007-09-20
    • US11375510
    • 2006-03-14
    • Jin WangCanhui OuRaghvendra SavoorSteve Sposato
    • Jin WangCanhui OuRaghvendra SavoorSteve Sposato
    • H04J1/16
    • H04L12/66H04L12/2856
    • In one illustrative embodiment a system for maintaining a communication link over a network includes a processor adapted to be coupled to a first communication link, the first communication link connected to a customer premises equipment (CPE), wherein the processor transmits data over the first link and switches to transmit data over the second link in response to a signal that is indicative of a degradation of service over the first link. In one aspect the system may include a switch at a service provider Digital Subscriber Line Access Multiplexer (DSLAM) for switching to a spare pair communication link when a degradation of service signal is received. In another aspect at least one spare pair communication link may be associated with a plurality of primary communication pairs.
    • 在一个说明性实施例中,用于通过网络维护通信链路的系统包括适于耦合到第一通信链路的处理器,所述第一通信链路连接到客户驻地设备(CPE),其中所述处理器经由所述第一链路 并且响应于指示在第一链路上的服务劣化的信号,切换到通过第二链路发送数据。 在一个方面,系统可以包括在服务提供商数字用户线路接入复用器(DSLAM)处的交换机,用于在接收到服务信号的劣化时切换到备用对通信链路。 在另一方面,至少一个备用对通信链路可以与多个主要通信对相关联。
    • 69. 发明申请
    • Facial feature detection on mobile devices
    • 移动设备上的面部特征检测
    • US20070154096A1
    • 2007-07-05
    • US11323654
    • 2005-12-31
    • Jiangen CaoShu LiHuaqi ZhangJin Wang
    • Jiangen CaoShu LiHuaqi ZhangJin Wang
    • G06K9/46G06K9/62
    • G06K9/00604G06K9/00234G06K9/00248G06K9/00281G06K9/4614
    • Locating an eye includes generating an intensity response map by applying a 3-rectangle filter and applying K-mean clustering to the map to determine the eye. Locating an eye corner includes applying logarithm transform and grayscale stretching to generate a grayscale eye patch, generating a binary map of the patch by using a threshold based on a histogram of the patch, and estimating the eye corner by averaging coordinates weighted by minimal eigenvalues of spatial gradient matrices in a search region based on the binary map. Locating a mouth corner includes generating another intensity response map and generating another binary map using another threshold based on another histogram of the intensity response map. Locating a chin or a cheek includes applying angle constrained gradient analysis to reject locations that cannot be the chin or cheek. Locating a cheek further includes removing falsely detected cheeks by parabola fitting curves through the cheeks.
    • 定位眼睛包括通过应用3矩形滤波器并将K均值聚类应用于地图来确定眼睛来产生强度响应图。 定位眼角包括应用对数变换和灰度拉伸以产生灰度眼睛斑块,通过使用基于斑块的直方图的阈值来生成斑块的二值图,并且通过平均坐标加权的坐标来估计眼角,该坐标是通过最小特征值 基于二进制图的搜索区域中的空间梯度矩阵。 定位嘴角包括产生另一个强度响应图并使用基于强度响应图的另一个直方图的另一个阈值生成另一二进制图。 定位下巴或脸颊包括应用角度约束梯度分析来拒绝不能是下巴或脸颊的位置。 定位脸颊进一步包括通过抛物线拟合曲线通过脸颊去除错误检测到的脸颊。