公开(公告)号：US09215101B2

公开(公告)日：2015-12-15

申请号：US12333235

申请日：2008-12-11

申请人： Richard Hart ,  Xiaochuan Yi

发明人： Richard Hart ,  Xiaochuan Yi

IPC分类号： H04L25/02 ,  H04L25/08

CPC分类号： H04B3/46 ,  H04L25/0278 ,  H04L25/08

摘要： Systems and methods for detecting and analyzing discontinuities in a communications link are disclosed. In some embodiments, the systems and methods operate to project signals into the communications link and detecting reflected signals. The reflected signals are processed to define a transformed distribution of the reflected signals. A peak value in the transformed distribution is selected and a local fit to the selected peak value is performed using a model function. A residue distribution is formed based upon the transformed distribution and the model function. A location of the discontinuity based upon the residue distribution is identified, and another peak value from the residue distribution is selected. Additional systems and methods are disclosed.

摘要翻译： 公开了用于检测和分析通信链路中的不连续性的系统和方法。 在一些实施例中，系统和方法操作以将信号投影到通信链路中并检测反射信号。 处理反射信号以定义反射信号的变换分布。 选择变换分布中的峰值，并使用模型函数执行对所选峰值的局部拟合。 基于变换分布和模型函数形成残差分布。 识别基于残差分布的不连续位置，并选择来自残差分布的另一个峰值。 公开了附加的系统和方法。

公开(公告)号：US20100154019A1

公开(公告)日：2010-06-17

申请号：US12333235

申请日：2008-12-11

申请人： Richard Hart ,  Xiaochuan Yi

发明人： Richard Hart ,  Xiaochuan Yi

IPC分类号： H04N7/173

CPC分类号： H04B3/46 ,  H04L25/0278 ,  H04L25/08

摘要： Systems and methods for detecting and analyzing discontinuities in a communications link are disclosed. In some embodiments, the systems and methods operate to project signals into the communications link and detecting reflected signals. The reflected signals are processed to define a transformed distribution of the reflected signals. A peak value in the transformed distribution is selected and a local fit to the selected peak value is performed using a model function. A residue distribution is formed based upon the transformed distribution and the model function. A location of the discontinuity based upon the residue distribution is identified, and another peak value from the residue distribution is selected. Additional systems and methods are disclosed.

摘要翻译： 公开了用于检测和分析通信链路中的不连续性的系统和方法。 在一些实施例中，系统和方法操作以将信号投影到通信链路中并检测反射信号。 处理反射信号以定义反射信号的变换分布。 选择变换分布中的峰值，并使用模型函数执行对所选峰值的局部拟合。 基于变换分布和模型函数形成残差分布。 识别基于残差分布的不连续位置，并选择来自残差分布的另一个峰值。 公开了附加的系统和方法。

公开(公告)号：US20080192119A1

公开(公告)日：2008-08-14

申请号：US11706129

申请日：2007-02-14

申请人： Zhi Li ,  Canhui Ou ,  Michael Tisiker ,  Donggen Zhang ,  Xiaochuan Yi ,  Raghvendra Savoor ,  Orestis Manthoulis ,  Christine Bouamalay

发明人： Zhi Li ,  Canhui Ou ,  Michael Tisiker ,  Donggen Zhang ,  Xiaochuan Yi ,  Raghvendra Savoor ,  Orestis Manthoulis ,  Christine Bouamalay

IPC分类号： H04N17/00

CPC分类号： H04N17/004 ,  H04N21/2402 ,  H04N21/44209 ,  H04N21/64723

摘要： Disclosed is a system and method of managing video content quality. The method includes receiving performance data at a video quality prediction system where the performance data is related to a plurality of network elements of a network path linking a video-head end with a set-top box device. The method also includes predicting, based at least partially on the performance data, a quality of video content received at the set-top box device and determining whether the predicted quality of video content is greater than or equal to a video quality threshold. In addition, the method includes identifying at least one of the plurality of network elements not satisfying a performance requirement, based on the performance data, when the predicted quality of video content is less than the video quality threshold. Further, the method includes outputting data indicating the at least one network element not satisfying the performance requirement.

摘要翻译： 公开了一种管理视频内容质量的系统和方法。 该方法包括在视频质量预测系统处接收性能数据，其中性能数据与将视频头端与机顶盒设备连接的网络路径的多个网络元件相关。 该方法还包括至少部分地基于性能数据来预测在机顶盒设备处接收的视频内容的质量，并且确定视频内容的预测质量是否大于或等于视频质量阈值。 此外，当视频内容的预测质量小于视频质量阈值时，该方法包括基于演奏数据来识别不满足演奏要求的多个网络元素中的至少一个。 此外，该方法包括输出指示不满足性能要求的至少一个网络元件的数据。

公开(公告)号：US20080181609A1

公开(公告)日：2008-07-31

申请号：US11627724

申请日：2007-01-26

申请人： Xiaochuan Yi ,  Canhui Ou

发明人： Xiaochuan Yi ,  Canhui Ou

IPC分类号： H04J14/00 ,  H04B10/20 ,  H04L12/28

CPC分类号： H04L41/145 ,  H04L41/0803

摘要： Methods and apparatus for designing a fiber-optic network are disclosed. An example apparatus comprises a memory to store a first list of available fibers between a plurality of nodes of a fiber-optic network and a second list of forecasted services for the plurality of nodes, and a network planner to recursively trace a network design tree to identify a preferable network design based on the first and the second lists.

摘要翻译： 公开了用于设计光纤网络的方法和设备。 示例性设备包括存储器，用于存储光纤网络的多个节点和多个节点的预测服务的第二列表之间的可用光纤的第一列表，以及网络规划器，以递归地跟踪网络设计树 基于第一和第二列表识别优选的网络设计。

公开(公告)号：US20080080389A1

公开(公告)日：2008-04-03

申请号：US11542292

申请日：2006-10-03

申请人： Richard D. Hart ,  Donggen Zhang ,  Xiaochuan Yi ,  Kevin Meng ,  Raghvendra Gurudath Savoor

发明人： Richard D. Hart ,  Donggen Zhang ,  Xiaochuan Yi ,  Kevin Meng ,  Raghvendra Gurudath Savoor

IPC分类号： H04J1/16

CPC分类号： H04L43/0894 ,  H04L41/12 ,  H04L41/145 ,  H04L41/22 ,  H04L43/087

摘要： Methods and apparatus are disclosed to develop management rules for qualifying broadband services. An example method disclosed herein includes receiving a time period to analyze broadband network spectral compatibility, retrieving circuit operating metrics of a first and a second twisted copper pair circuit during the time period, and qualifying at least one of a first or a second plain old telephone system (POTS) twisted copper pair circuit for broadband services to determine the network spectral compatibility based on the operating metrics.

摘要翻译： 披露方法和装置来制定有关宽带服务的管理规则。 本文公开的示例性方法包括：接收用于分析宽带网络频谱兼容性的时间段，在该时间段期间检索第一和第二双绞线对电路的电路操作度量，以及限定第一或第二普通老式电话中的至少一个 系统（POTS）双绞线对电路，用于宽带业务，以确定基于运营指标的网络频谱兼容性。

公开(公告)号：US20120039187A1

公开(公告)日：2012-02-16

申请号：US12854667

申请日：2010-08-11

申请人： Chen-Yui Yang ,  Paritosh Bajpay ,  David H. Lu ,  Raghvendra Savoor ,  Anthony M. Srdar ,  Jin Wang ,  Xidong Wu ,  Xiaochuan Yi

发明人： Chen-Yui Yang ,  Paritosh Bajpay ,  David H. Lu ,  Raghvendra Savoor ,  Anthony M. Srdar ,  Jin Wang ,  Xidong Wu ,  Xiaochuan Yi

IPC分类号： H04L12/26

CPC分类号： H04M3/2254 ,  H04B3/46 ,  H04L12/2878 ,  H04M3/306 ,  H04M11/062 ,  H04N17/004

摘要： A method of diagnosing a transmission loop in an Internet protocol television (IPTV) network includes configuring the loop as an open loop and performing a single-ended loop test (SELT), configuring the loop as a terminated-loop and performing another SELT, subtracting a trace of the first SELT from a trace of the second SELT, and determining the length of the loop from the result. A service assurance system in an IPTV network includes a test module and a DSLAM coupled to a residential gateway by a transmission loop. The test module operates to determine that a fault condition on the IPTV network is caused by a fault in the loop, direct the DSLAM to perform an open loop SELT and a terminated-loop SELT on the loop, receive the results of the SELTs, and determine a location of a tap on the loop based upon the results.

摘要翻译： 诊断互联网协议电视（IPTV）网络中的传输环路的方法包括将该环路配置为开环并执行单端环路测试（SELT），将该环路配置为终止环路并执行另一SELT，减去 从第二个SELT的轨迹读取第一个SELT的轨迹，并从结果中确定循环的长度。 IPTV网络中的服务保证系统包括通过传输环路耦合到住宅网关的测试模块和DSLAM。 测试模块操作以确定IPTV网络上的故障状况是由环路故障引起的，指示DSLAM在环路上执行开环SELT和终止环路SELT，接收SELT的结果，以及 基于结果确定回路上的龙头的位置。

公开(公告)号：US20090225672A1

公开(公告)日：2009-09-10

申请号：US12043748

申请日：2008-03-06

申请人： Xiaochuan Yi ,  Arvind Mallya ,  Hua Jiao ,  Jim Otsuka

发明人： Xiaochuan Yi ,  Arvind Mallya ,  Hua Jiao ,  Jim Otsuka

IPC分类号： H04L12/26 ,  H04B1/38

CPC分类号： H04M3/304 ,  H04L41/5035 ,  H04L41/5074

摘要： Methods and apparatus to detect wideband interference in digital subscriber line (DSL) systems are disclosed. An example method comprises retrieving a first plurality of performance parameters for a first time interval for respective ones of a plurality of DSL modems, wherein each of the plurality of DSL modems are associated with respective ones of a plurality of subscriber loops, and comparing each of the performance parameters to a threshold to determine whether two or more of the respective ones of the plurality of subscriber loops experienced respective performance degradations during the first time interval. The example method further comprises determining whether the two or more subscriber loops that experienced the respective performance degradations during the first time interval are communicatively coupled to a common serving terminal, and automatically generating a repair ticket when the two or more subscriber loops that experienced the respective performance degradations during the first time interval are served from the common serving terminal, the repair ticket representing a possible wideband noise interference condition affecting more than one of the plurality of subscriber loops.

摘要翻译： 公开了在数字用户线（DSL）系统中检测宽带干扰的方法和装置。 一个示例性方法包括为多个DSL调制解调器中的相应的一个DSL调制解调器检索第一时间间隔的第一多个性能参数，其中多个DSL调制解调器中的每一个与多个用户环路中的相应的一个相关联， 将所述性能参数提供到阈值以确定所述多个用户回路中的相应一个用户回路中的两个或更多个是否在所述第一时间间隔期间经历相应的性能降级。 该示例方法还包括确定在第一时间间隔期间经历相应的性能下降的两个或更多个用户环路是否可通信地耦合到公共服务终端，并且当经历相应的两个或多个用户环路时，自动生成修复故障单 第一时间间隔期间的性能下降是从公共服务终端服务的，所述维修票代表影响多个用户环路中的多于一个的可能的宽带噪声干扰条件。

公开(公告)号：US20070242608A1

公开(公告)日：2007-10-18

申请号：US11403510

申请日：2006-04-12

申请人： Canhui Ou ,  Mung Chiang ,  Zhi Li ,  Orestis Manthoulis ,  Xiaochuan Yi ,  Kaiyan Chen

发明人： Canhui Ou ,  Mung Chiang ,  Zhi Li ,  Orestis Manthoulis ,  Xiaochuan Yi ,  Kaiyan Chen

IPC分类号： H04J3/14

CPC分类号： H04L45/48 ,  H04L45/12

摘要： Various embodiments of the disclosed subject matter provide methods and systems to generate node-disjoint routing paths from a root node to each node in a network node set, identify potential intermediate office node (IO) candidate pairs from the generated node-disjoint routing paths, generate a per central office node (CO) serving cost estimate for each IO candidate pair, and identify a low cost IO candidate pair having at least two node-disjoint paths to the root node without traversing nodes along a diverse path between the low cost IO candidate pair and subtending CO nodes.

摘要翻译： 所公开的主题的各种实施例提供了用于从网络节点集中的根节点到每个节点生成节点不相交路由路径的方法和系统，从生成的节点不相交路由路径识别潜在的中间节点（IO）候选对， 生成针对每个IO候选对的每个中心局节点（CO）服务成本估计，并且识别具有至所述根节点的至少两个节点不相交路径的低成本IO候选对，而不沿着所述低成本IO 候选对和对等CO节点。

公开(公告)号：US08839325B2

公开(公告)日：2014-09-16

申请号：US11706129

申请日：2007-02-14

申请人： Zhi Li ,  Canhui Ou ,  Michael Tisiker ,  Donggen Zhang ,  Xiaochuan Yi ,  Raghvendra Savoor ,  Orestis Manthoulis ,  Christine Bouamalay

发明人： Zhi Li ,  Canhui Ou ,  Michael Tisiker ,  Donggen Zhang ,  Xiaochuan Yi ,  Raghvendra Savoor ,  Orestis Manthoulis ,  Christine Bouamalay

IPC分类号： H04N7/173 ,  H04N21/442 ,  H04N21/24 ,  H04N21/647 ,  H04N17/00

CPC分类号： H04N17/004 ,  H04N21/2402 ,  H04N21/44209 ,  H04N21/64723

摘要： Disclosed is a system and method of managing video content quality. The method includes receiving performance data at a video quality prediction system where the performance data is related to a plurality of network elements of a network path linking a video-head end with a set-top box device. The method also includes predicting, based at least partially on the performance data, a quality of video content received at the set-top box device and determining whether the predicted quality of video content is greater than or equal to a video quality threshold. In addition, the method includes identifying at least one of the plurality of network elements not satisfying a performance requirement, based on the performance data, when the predicted quality of video content is less than the video quality threshold. Further, the method includes outputting data indicating the at least one network element not satisfying the performance requirement.

摘要翻译： 公开了一种管理视频内容质量的系统和方法。 该方法包括在视频质量预测系统处接收性能数据，其中性能数据与将视频头端与机顶盒设备连接的网络路径的多个网络元件相关。 该方法还包括至少部分地基于性能数据来预测在机顶盒设备处接收的视频内容的质量，并且确定视频内容的预测质量是否大于或等于视频质量阈值。 此外，当视频内容的预测质量小于视频质量阈值时，该方法包括基于演奏数据来识别不满足演奏要求的多个网络元素中的至少一个。 此外，该方法包括输出指示不满足性能要求的至少一个网络元件的数据。

公开(公告)号：US08416700B2

公开(公告)日：2013-04-09

申请号：US12854667

申请日：2010-08-11

申请人： Chen-Yui Yang ,  Paritosh Bajpay ,  David H. Lu ,  Raghvendra Savoor ,  Anthony M. Srdar ,  Jin Wang ,  Xidong Wu ,  Xiaochuan Yi

发明人： Chen-Yui Yang ,  Paritosh Bajpay ,  David H. Lu ,  Raghvendra Savoor ,  Anthony M. Srdar ,  Jin Wang ,  Xidong Wu ,  Xiaochuan Yi

IPC分类号： H04L1/12

CPC分类号： H04M3/2254 ,  H04B3/46 ,  H04L12/2878 ,  H04M3/306 ,  H04M11/062 ,  H04N17/004

摘要： A method of diagnosing a transmission loop in an Internet protocol television (IPTV) network includes configuring the loop as an open loop and performing a single-ended loop test (SELT), configuring the loop as a terminated-loop and performing another SELT, subtracting a trace of the first SELT from a trace of the second SELT, and determining the length of the loop from the result. A service assurance system in an IPTV network includes a test module and a DSLAM coupled to a residential gateway by a transmission loop. The test module operates to determine that a fault condition on the IPTV network is caused by a fault in the loop, direct the DSLAM to perform an open loop SELT and a terminated-loop SELT on the loop, receive the results of the SELTs, and determine a location of a tap on the loop based upon the results.