Sub-symbol rate cable tester
    1.
    发明授权
    Sub-symbol rate cable tester 有权
    子符号速率电缆测试仪

    公开(公告)号:US08513952B2

    公开(公告)日:2013-08-20

    申请号:US12330751

    申请日:2008-12-09

    IPC分类号: G01R31/00

    摘要: Aspects of the present disclosure provide for a cable tester that tests a cable to determine the cable length. The cable tester can include a clock generator that generates a clock that has clock period that is a multiple of the data symbol period and a signal generator that injects the training signal, which can be synchronous with the clock, into the cable. The cable tester can also include a receiver that samples the returned signal from the cable and adaptively filters the returned signal based on the training signal and a controller that determines the cable length from the adaptive filter tap coefficients.

    摘要翻译: 本公开的方面提供了测试电缆以确定电缆长度的电缆测试器。 电缆测试器可以包括时钟发生器,其产生具有数据符号周期的倍数的时钟周期的时钟和将时钟同步的训练信号注入到电缆中的信号发生器。 电缆测试器还可以包括接收器,其对来自电缆的返回信号进行采样,并且基于训练信号自适应地过滤返回的信号,以及控制器,其根据自适应滤波器抽头系数确定电缆长度。

    Methods and apparatus for measuring a length of a cable
    2.
    发明授权
    Methods and apparatus for measuring a length of a cable 有权
    用于测量电缆长度的方法和装置

    公开(公告)号:US07977951B1

    公开(公告)日:2011-07-12

    申请号:US12897292

    申请日:2010-10-04

    IPC分类号: G01R31/02

    CPC分类号: H04L43/50

    摘要: A first physical layer (PHY) device includes an auto-negotiation module, a first cable-length measuring module, and a first control module. The auto-negotiation module exchanges data rates of the first PHY device and a second PHY device. The first PHY device is connected to the second PHY device by a cable. The first cable-length measuring module performs a first measurement of a length of the cable. The first control module selectively receives a second measurement of the length of the cable from the second PHY device, and selects a data rate of the first PHY device from the data rates of the first PHY device and the second PHY device based on (i) the first measurement of the length of the cable performed by the first cable-length measuring module of the first PHY device, or (ii) the second measurement of the length of the cable received from the second PHY device.

    摘要翻译: 第一物理层(PHY)设备包括自动协商模块,第一电缆长度测量模块和第一控制模块。 自动协商模块交换第一PHY设备和第二PHY设备的数据速率。 第一PHY设备通过电缆连接到第二PHY设备。 第一缆线长度测量模块进行电缆长度的第一次测量。 第一控制模块选择性地接收来自第二PHY设备的电缆长度的第二测量,并且基于(i)从第一PHY设备和第二PHY设备的数据速率来选择第一PHY设备的数据速率, 由第一PHY设备的第一电缆长度测量模块执行的电缆的长度的第一测量,或(ii)从第二PHY设备接收的电缆的长度的第二测量。

    Methods and apparatus for measuring a length of a cable
    3.
    发明授权
    Methods and apparatus for measuring a length of a cable 有权
    用于测量电缆长度的方法和装置

    公开(公告)号:US07808249B1

    公开(公告)日:2010-10-05

    申请号:US12035816

    申请日:2008-02-22

    IPC分类号: G01R31/11

    CPC分类号: H04L43/50

    摘要: A physical layer (PHY) device of a network device includes a first module, a first cable-length measuring (CLM) module, and a first control module. The first module determines whether a remote PHY that communicates with the PHY device over a cable is capable of measuring a length of the cable. The first CLM module measures a first length of the cable. The first control module causes the first length to be transmitted to the remote PHY, receives a second length of the cable measured by the remote PHY, and adjusts an operating parameter of the PHY based on at least one of the first and second lengths.

    摘要翻译: 网络设备的物理层(PHY)设备包括第一模块,第一电缆长度测量(CLM)模块和第一控制模块。 第一模块确定通过电缆与PHY设备通信的远程PHY是否能够测量电缆的长度。 第一个CLM模块测量电缆的第一个长度。 第一控制模块使得第一长度被发送到远程PHY,接收由远程PHY测量的电缆的第二长度,并且基于第一和第二长度中的至少一个来调整PHY的操作参数。

    Long-reach Ethernet for 1000BASE-T and 10GBASE-T
    4.
    发明授权
    Long-reach Ethernet for 1000BASE-T and 10GBASE-T 有权
    1000BASE-T和10GBASE-T的长距离以太网

    公开(公告)号:US08824502B2

    公开(公告)日:2014-09-02

    申请号:US13585216

    申请日:2012-08-14

    IPC分类号: H04L12/28

    摘要: A network interface module includes a physical layer module and a data rate module. The physical layer module is configured to transmit first signals to a network device via a cable at a first data rate while conforming to Ethernet baseband characteristics for the first data rate, and at least one of determine a characteristic of the cable, or perform an autonegotiation process with the network device. The data rate module is configured to select a second data rate based on at least one of the characteristic of the cable, or results of the autonegotiation process. The second data rate is slower than the first data rate. The physical layer module is configured to transmit second signals to the network device at the second data rate while conforming to the Ethernet baseband characteristics for the first data rate.

    摘要翻译: 网络接口模块包括物理层模块和数据速率模块。 物理层模块被配置为通过电缆以第一数据速率将第一信号发送到网络设备,同时符合用于第一数据速率的以太网基带特性,并且确定电缆的特性中的至少一个,或执行自动协商 与网络设备进程。 数据速率模块被配置为基于电缆的特征中的至少一个或自动协商过程的结果来选择第二数据速率。 第二数据速率比第一数据速率慢。 物理层模块被配置为以符合第一数据速率的以太网基带特性的第二数据速率向网络设备发送第二信号。

    LONG-REACH ETHERNET FOR 1000BASE-T AND 10GBASE-T
    6.
    发明申请
    LONG-REACH ETHERNET FOR 1000BASE-T AND 10GBASE-T 有权
    用于1000BASE-T和10GBASE-T的长距离以太网

    公开(公告)号:US20120314716A1

    公开(公告)日:2012-12-13

    申请号:US13585216

    申请日:2012-08-14

    IPC分类号: H04L12/56

    摘要: A physical-layer device includes a cable measurement module, a data rate module and a physical-layer device core. The cable measurement module measures characteristics of a cable. The data rate module (i) selects a data rate divisor N based on the characteristics of the cable, and (ii) reduces a rate of a first clock based on the data rate divisor N, where N is greater than 1. The physical-layer device core includes: a transmit module that transmits first signals over the cable at a data rate of M/N Gbps based on the rate of the first clock, where M is an integer; and a receive module that receives second signals over the cable at the data rate of M/N Gbps based on the rate of the first clock. The first and second signals conform to 1000BASE-T when M=1. The first and signals conform to 10GBASE-T when M=10.

    摘要翻译: 物理层设备包括电缆测量模块,数据速率模块和物理层设备核心。 电缆测量模块测量电缆的特性。 数据速率模块(i)基于电缆的特性来选择数据速率因数N,并且(ii)基于数据速率除数N降低第一时钟的速率,其中N大于1。 层设备核心包括:发射模块,其基于第一时钟的速率以M / N Gbps的数据速率通过电缆发送第一信号,其中M是整数; 以及接收模块,其以基于第一时钟的速率的M / N Gbps的数据速率通过电缆接收第二信号。 当M = 1时,第一和第二信号符合1000BASE-T。 当M = 10时,第一个和信号符合10GBASE-T。

    Long-reach ethernet for 1000BASE-T and 10GBASE-T
    7.
    发明授权
    Long-reach ethernet for 1000BASE-T and 10GBASE-T 有权
    1000BASE-T和10GBASE-T的长距离以太网

    公开(公告)号:US08243752B2

    公开(公告)日:2012-08-14

    申请号:US12330823

    申请日:2008-12-09

    IPC分类号: H04L12/28

    摘要: A physical-layer device (PHY) having corresponding methods comprises: a data rate module to select a data rate divisor N, where N is at least one of a positive integer, or a real number greater than, or equal to, 1; and a PHY core comprising a PHY transmit module to transmit first signals a data rate of M/N Gbps, and a PHY receive module to receive second signals at the data rate of M/N Gbps; wherein the first and second signals conform to at least one of 1000BASE-T, wherein M=1, and 10GBASE-T, wherein M=10.

    摘要翻译: 具有相应方法的物理层设备(PHY)包括:数据速率模块,用于选择数据速率除数N,其中N是大于或等于1的正整数或实数中的至少一个; 以及PHY核,其包括用于以M / N Gbps的数据速率发送第一信号的PHY发送模块以及以M / N Gbps的数据速率接收第二信号的PHY接收模块; 其中所述第一和第二信号符合1000BASE-T,其中M = 1和10GBASE-T中的至少一个,其中M = 10。

    Long-reach ethernet for 1000BASE-T and 10GBASE-T
    8.
    发明申请
    Long-reach ethernet for 1000BASE-T and 10GBASE-T 有权
    1000BASE-T和10GBASE-T的长距离以太网

    公开(公告)号:US20090080459A1

    公开(公告)日:2009-03-26

    申请号:US12330823

    申请日:2008-12-09

    IPC分类号: H04L12/66

    摘要: A physical-layer device (PHY) having corresponding methods comprises: a data rate module to select a data rate divisor N, where N is at least one of a positive integer, or a real number greater than, or equal to, 1; and a PHY core comprising a PHY transmit module to transmit first signals a data rate of M/N Gbps, and a PHY receive module to receive second signals at the data rate of MIN Gbps; wherein the first and second signals conform to at least one of 1000BASE-T, wherein M=1, and 10GBASE-T, wherein M=10.

    摘要翻译: 具有相应方法的物理层设备(PHY)包括:数据速率模块,用于选择数据速率除数N,其中N是大于或等于1的正整数或实数中的至少一个; 以及PHY核,其包括PHY发送模块,用于以M / N Gbps的数据速率发送第一信号,以及PHY接收模块,以接收第二信号的数据速率为MINGbps; 其中所述第一和第二信号符合1000BASE-T,其中M = 1和10GBASE-T中的至少一个,其中M = 10。

    Single pair PHY with auto-negotiation
    9.
    发明授权
    Single pair PHY with auto-negotiation 有权
    单对PHY与自动协商

    公开(公告)号:US09130746B1

    公开(公告)日:2015-09-08

    申请号:US13350969

    申请日:2012-01-16

    申请人: William Lo

    发明人: William Lo

    IPC分类号: H04L5/16 H04L5/14

    摘要: Systems, methods, and other embodiments associated with auto-negotiating over a single pair PHY are described. According to one embodiment, an apparatus includes a physical layer (PHY) transceiver configured to communicate over a single twisted pair channel. The apparatus includes a setup logic configured to control the PHY transceiver to initiate an auto-negotiation sequence over the single twisted pair channel with a remote device upon detecting a transmission from the remote device on the single twisted pair channel. The auto-negotiation sequence includes an exchange of parameters with the remote device using a half-duplex mode to communicate on the single twisted pair channel.

    摘要翻译: 描述了通过单对PHY自动协商相关联的系统,方法和其他实施例。 根据一个实施例,一种装置包括被配置为通过单个双绞线信道进行通信的物理层(PHY)收发器。 该装置包括设置逻辑,其被配置为在检测到来自单个双绞线信道上的远程设备的传输时,通过远程设备来控制PHY收发器在单个双绞线信道上发起自动协商序列。 自动协商序列包括使用半双工模式与远程设备交换参数,以在单个双绞线信道上进行通信。

    Cable tester
    10.
    发明授权
    Cable tester 有权
    电缆测试仪

    公开(公告)号:US08179144B1

    公开(公告)日:2012-05-15

    申请号:US13023410

    申请日:2011-02-08

    IPC分类号: G01R31/11

    CPC分类号: H04L43/50 G01R31/11 H04L12/10

    摘要: A network device including a physical layer (PHY) device and an autonegotiation module. The PHY device is configured to interface with N cable pairs, where N is greater than 1. The PHY device includes a cable test module configured to diagnose a short circuit in one of the N cable pairs. The autonegotiation module is configured to i) selectively perform autonegotiation to establish a link with a link partner at one of a first link speed and a second link speed that is lower than the first link speed, and ii) select between the first link speed and the second link speed in response to the cable test module diagnosing the short circuit.

    摘要翻译: 一种包括物理层(PHY)设备和自动协商模块的网络设备。 PHY设备被配置为与N个大于1的N个电缆对接口。PHY设备包括被配置为诊断N个电缆对之一中的短路的电缆测试模块。 自动协商模块被配置为:i)选择性地执行自动协商以便以低于第一链路速度的第一链路速度和第二链路速度中的一个建立与链路伙伴的链路,以及ii)在第一链路速度和 响应于电缆测试模块诊断短路的第二链路速度。