公开(公告)号：US07460498B2

公开(公告)日：2008-12-02

申请号：US10727411

申请日：2003-12-04

申请人： Gary Hunt ,  Fred Chu ,  Lee T. Gusler, Jr.

发明人： Gary Hunt ,  Fred Chu ,  Lee T. Gusler, Jr.

IPC分类号： H04B3/20

CPC分类号： H04B3/238 ,  H04M3/002 ,  H04M3/085 ,  H04M3/28

摘要： An anomaly detection system comprises an echo canceler and anomaly detection logic. The echo canceler has a plurality of taps respectively associated with a plurality of tap coefficients. The anomaly detection logic is configured to determine a difference between a new tap coefficient associated with one of the taps and a previous tap coefficient associated with the one tap. The anomaly detection logic is configured to perform a comparison between the difference and a threshold and to detect an anomaly along a telecommunication line based on the comparison.

摘要翻译： 异常检测系统包括回波消除器和异常检测逻辑。 回波消除器具有分别与多个抽头系数相关联的多个抽头。 异常检测逻辑被配置为确定与抽头之一相关联的新抽头系数与与一次抽头相关联的先前抽头系数之间的差。 异常检测逻辑被配置为执行差异和阈值之间的比较，并且基于该比较来检测沿着电信线路的异常。

公开(公告)号：US08767921B2

公开(公告)日：2014-07-01

申请号：US13546417

申请日：2012-07-11

申请人： Gary Hunt ,  Fred Chu ,  Lee T. Gusler, Jr.

发明人： Gary Hunt ,  Fred Chu ,  Lee T. Gusler, Jr.

IPC分类号： H04M1/24 ,  H04M3/08 ,  H04M3/22

CPC分类号： H04B3/238 ,  H04M3/002 ,  H04M3/085 ,  H04M3/28

摘要： An anomaly detection system comprises an echo canceler and anomaly detection logic. The echo canceler has a plurality of taps respectively associated with a plurality of tap coefficients. The anomaly detection logic is configured to determine a difference between a new tap coefficient associated with one of the taps and a previous tap coefficient associated with the one tap. The anomaly detection logic is configured to perform a comparison between the difference and a threshold and to detect an anomaly along a telecommunication line based on the comparison.

摘要翻译： 异常检测系统包括回波消除器和异常检测逻辑。 回波消除器具有分别与多个抽头系数相关联的多个抽头。 异常检测逻辑被配置为确定与抽头之一相关联的新抽头系数与与一次抽头相关联的先前抽头系数之间的差。 异常检测逻辑被配置为执行差异和阈值之间的比较，并且基于该比较来检测沿着电信线路的异常。

公开(公告)号：US20120281818A1

公开(公告)日：2012-11-08

申请号：US13546417

申请日：2012-07-11

申请人： Gary Hunt ,  Fred Chu ,  Lee T. Gusler, JR.

发明人： Gary Hunt ,  Fred Chu ,  Lee T. Gusler, JR.

IPC分类号： H04M1/24

CPC分类号： H04B3/238 ,  H04M3/002 ,  H04M3/085 ,  H04M3/28

摘要： An anomaly detection system comprises an echo canceler and anomaly detection logic. The echo canceler has a plurality of taps respectively associated with a plurality of tap coefficients. The anomaly detection logic is configured to determine a difference between a new tap coefficient associated with one of the taps and a previous tap coefficient associated with the one tap. The anomaly detection logic is configured to perform a comparison between the difference and a threshold and to detect an anomaly along a telecommunication line based on the comparison.

摘要翻译： 异常检测系统包括回波消除器和异常检测逻辑。 回波消除器具有分别与多个抽头系数相关联的多个抽头。 异常检测逻辑被配置为确定与抽头之一相关联的新抽头系数与与一次抽头相关联的先前抽头系数之间的差。 异常检测逻辑被配置为执行差异和阈值之间的比较，并且基于该比较来检测沿着电信线路的异常。

公开(公告)号：US08242785B2

公开(公告)日：2012-08-14

申请号：US12267273

申请日：2008-11-07

申请人： Gary Hunt ,  Fred Chu ,  Lee T. Gusler, Jr.

发明人： Gary Hunt ,  Fred Chu ,  Lee T. Gusler, Jr.

IPC分类号： G01R31/11

CPC分类号： H04B3/238 ,  H04M3/002 ,  H04M3/085 ,  H04M3/28

摘要： An anomaly detection system comprises an echo canceler and anomaly detection logic. The echo canceler has a plurality of taps respectively associated with a plurality of tap coefficients. The anomaly detection logic is configured to determine a difference between a new tap coefficient associated with one of the taps and a previous tap coefficient associated with the one tap. The anomaly detection logic is configured to perform a comparison between the difference and a threshold and to detect an anomaly along a telecommunication line based on the comparison.

摘要翻译： 异常检测系统包括回波消除器和异常检测逻辑。 回波消除器具有分别与多个抽头系数相关联的多个抽头。 异常检测逻辑被配置为确定与抽头之一相关联的新抽头系数与与一次抽头相关联的先前抽头系数之间的差。 异常检测逻辑被配置为执行差异和阈值之间的比较，并且基于该比较来检测沿着电信线路的异常。

公开(公告)号：US20090067353A1

公开(公告)日：2009-03-12

申请号：US12267273

申请日：2008-11-07

申请人： Gary Hunt ,  Fred Chu ,  Lee T. Gusler, JR.

发明人： Gary Hunt ,  Fred Chu ,  Lee T. Gusler, JR.

IPC分类号： H04B3/20

CPC分类号： H04B3/238 ,  H04M3/002 ,  H04M3/085 ,  H04M3/28

摘要： An anomaly detection system comprises an echo canceler and anomaly detection logic. The echo canceler has a plurality of taps respectively associated with a plurality of tap coefficients. The anomaly detection logic is configured to determine a difference between a new tap coefficient associated with one of the taps and a previous tap coefficient associated with the one tap. The anomaly detection logic is configured to perform a comparison between the difference and a threshold and to detect an anomaly along a telecommunication line based on the comparison.

摘要翻译： 异常检测系统包括回波消除器和异常检测逻辑。 回波消除器具有分别与多个抽头系数相关联的多个抽头。 异常检测逻辑被配置为确定与抽头之一相关联的新抽头系数与与一次抽头相关联的先前抽头系数之间的差。 异常检测逻辑被配置为执行差异和阈值之间的比较，并且基于该比较来检测沿着电信线路的异常。

公开(公告)号：US20050123031A1

公开(公告)日：2005-06-09

申请号：US10727411

申请日：2003-12-04

申请人： Gary Hunt ,  Fred Chu ,  Lee Gusler

发明人： Gary Hunt ,  Fred Chu ,  Lee Gusler

IPC分类号： H04B3/23 ,  H04M3/00 ,  H04M3/08 ,  H04M3/28 ,  H04Q1/20

CPC分类号： H04B3/238 ,  H04M3/002 ,  H04M3/085 ,  H04M3/28

摘要： An anomaly detection system comprises an echo canceler and anomaly detection logic. The echo canceler has a plurality of taps respectively associated with a plurality of tap coefficients. The anomaly detection logic is configured to determine a difference between a new tap coefficient associated with one of the taps and a previous tap coefficient associated with the one tap. The anomaly detection logic is configured to perform a comparison between the difference and a threshold and to detect an anomaly along a telecommunication line based on the comparison.

摘要翻译： 异常检测系统包括回波消除器和异常检测逻辑。 回波消除器具有分别与多个抽头系数相关联的多个抽头。 异常检测逻辑被配置为确定与抽头之一相关联的新抽头系数与与一次抽头相关联的先前抽头系数之间的差。 异常检测逻辑被配置为执行差异和阈值之间的比较，并且基于该比较来检测沿着电信线路的异常。

公开(公告)号：US09432169B2

公开(公告)日：2016-08-30

申请号：US13971823

申请日：2013-08-20

申请人： Richard L. Goodson ,  Fred Chu ,  Martin Kuipers

发明人： Richard L. Goodson ,  Fred Chu ,  Martin Kuipers

IPC分类号： H04L12/28 ,  H04L5/00 ,  H04B3/04 ,  H04M11/06 ,  H04B3/32

CPC分类号： H04L5/0058 ,  H04B3/04 ,  H04B3/32 ,  H04M11/062

摘要： Power dissipation within a network service unit, such as digital-subscriber-line access multiplexer (DSLAM), is treated as a resource that is to be shared among subscribers. In this regard, the total amount of available power dissipation is quantified, and the framing for the data streams communicated across the subscriber lines are controlled to ensure that specified power dissipation limits are not exceeded, accounting for one or more factors, such as traffic load, service level agreement (SLA) specifications, available power, and temperature.

摘要翻译： 网络服务单元（如数字用户线路接入复用器（DSLAM））中的功耗被视为要在订户之间共享的资源。 在这方面，量化可用功耗的总量，并且控制在用户线路上传送的数据流的成帧，以确保不超过规定的功率耗散限制，占一个或多个因素，例如业务负载 ，服务水平协议（SLA）规格，可用功率和温度。

公开(公告)号：US20160112091A1

公开(公告)日：2016-04-21

申请号：US14857531

申请日：2015-09-17

申请人： Fred Chu ,  Kenneth D. Ko

发明人： Fred Chu ,  Kenneth D. Ko

IPC分类号： H04B3/32

CPC分类号： H04B3/32

摘要： A communication system has a trunk extending from a network facility, such as a central office, with a plurality of distribution points positioned along the trunk. Each leg of the trunk defines a shared channel that permits peak data rates much greater than what would be achievable without channel sharing. As an example, the connections of each respective trunk leg may be bonded. Further, the same modulation format and crosstalk vectoring are used for each leg of the trunk. The crosstalk vectoring cancels both far-end crosstalk (FEXT) that couples between connections of a given trunk leg and crossover crosstalk that couples between one trunk leg and another. In addition, logic determines an amount of excess capacity available for each leg of the trunk and controls error correction based on the determined excess capacity.

公开(公告)号：US09191495B2

公开(公告)日：2015-11-17

申请号：US13410712

申请日：2012-03-02

申请人： Richard Goodson ,  Arlynn Wayne Wilson ,  Fred Chu

发明人： Richard Goodson ,  Arlynn Wayne Wilson ,  Fred Chu

IPC分类号： H04L29/14 ,  H04M3/18 ,  H04W24/02 ,  H04B3/32 ,  H04M3/34 ,  H04L27/26 ,  H04L12/70 ,  H04M3/30

CPC分类号： H04M3/18 ,  H04B3/32 ,  H04L27/2601 ,  H04L2012/5675 ,  H04M3/306 ,  H04M3/34 ,  H04W24/02

摘要： A communication system comprises a plurality of line cards having transceivers coupled to a plurality of subscriber lines. Each line card has at least one active transceiver within the same vectoring group, and each line card also has vector logic capable of cancelling crosstalk induced by an active transceiver that is a member of the vectoring group. Further, the line cards are coupled to one another via a ring connection across which vectoring information is passed from one line card to the next. In the event of a failure of one of the line cards, the failed card is bypassed by the vectoring stream so that the operational line cards can continue crosstalk vectoring operations despite such failure.

摘要翻译： 通信系统包括具有耦合到多个用户线的收发器的多个线路卡。 每个线路卡在相同的向量组内具有至少一个有源收发器，并且每个线路卡还具有能够消除由作为向量组的成员的有源收发器引起的串扰的向量逻辑。 此外，线卡通过环形连接彼此耦合，通过该环连接向导信息从一个线卡传递到下一个线卡。 在线卡之一发生故障的情况下，故障卡被矢量流旁路，使得即使发生故障，运行线路卡也可以继续进行串扰向量运算。

公开(公告)号：US08582425B1

公开(公告)日：2013-11-12

申请号：US13016680

申请日：2011-01-28

申请人： Michael D. Turner ,  Arlynn Wayne Wilson ,  Fred Chu

发明人： Michael D. Turner ,  Arlynn Wayne Wilson ,  Fred Chu

IPC分类号： G01R31/08

CPC分类号： H04L12/2892 ,  H04B3/32 ,  H04L12/2896

摘要： The present disclosure generally pertains to systems and methods for cancelling crosstalk in satellite access devices, such as DSLAMs. In one exemplary embodiment, a satellite DSLAM is configured to employ a vectored DSL modulation format, such as vectored VDSL, on both a customer premises (CP) side of the DSLAM and a network side of the DSLAM. For at least one tone communicated by the DSLAM, the DSLAM is configured to maintain a set of coefficients indicative of crosstalk contributions from interferers on both sides of the DSLAM. Based on such coefficients, the DSLAM is configured to cancel crosstalk that couples from one side of the DSLAM to the other.

摘要翻译： 本公开通常涉及用于消除卫星接入设备（例如DSLAM）中的串扰的系统和方法。 在一个示例性实施例中，卫星DSLAM被配置为在DSLAM的客户端（CP）侧和DSLAM的网络侧上采用向量的DSL调制格式，例如矢量VDSL。 对于由DSLAM通信的至少一个音调，DSLAM被配置为保持指示DSLAM两侧的干扰源的串扰贡献的一组系数。 基于这样的系数，DSLAM被配置为消除从DSLAM的一侧耦合到另一侧的串扰。