Method and apparatus for phase aligning two clock signals utilizing a programmable phase adjustment circuit
    1.
    发明授权
    Method and apparatus for phase aligning two clock signals utilizing a programmable phase adjustment circuit 失效
    使用可编程相位调整电路对两个时钟信号进行相位对准的方法和装置

    公开(公告)号:US06750687B1

    公开(公告)日:2004-06-15

    申请号:US10366301

    申请日:2003-02-13

    CPC classification number: H04J3/0688 H03L7/00 H04J3/0691

    Abstract: An apparatus, method, communications device and computer readable medium for phase aligning two clocks and providing a graceful switch between active and standby circuitry is disclosed. A reporting circuit receives a measured phase difference between a first clock signal and a second clock signal, a selection circuit selects a configurable phase adjustment according to the measured phase difference, and a granularity adjustment circuit adds the configurable phase adjustment to the first clock signal generating a phase adjusted clock signal. The measured phase difference is compared to a maximum allowable phase difference value such that a phase adjustment is added to the first clock signal if the measured phase difference is greater than the maximum allowable phase difference value. The process is repeated until the measured phase difference is not greater than the maximum allowable phase difference value.

    Abstract translation: 公开了一种用于相位对准两个时钟并在主动和备用电路之间提供优雅开关的装置,方法,通信装置和计算机可读介质。 报告电路接收第一时钟信号和第二时钟信号之间的测量相位差,选择电路根据所测量的相位差选择可配置的相位调整,并且粒度调整电路将可配置相位调整添加到产生第一时钟信号的第一时钟信号 相位调整的时钟信号。 将测量的相位差与最大允许相位差进行比较,使得如果测量的相位差大于最大允许相位差值,则将相位调整添加到第一时钟信号。 重复该过程,直到所测量的相位差不大于最大允许相位差值。

    POWER-SHARING NETWORK COMMUNICATIONS DEVICE
    3.
    发明申请
    POWER-SHARING NETWORK COMMUNICATIONS DEVICE 有权
    动力共享网络通信设备

    公开(公告)号:US20110266867A1

    公开(公告)日:2011-11-03

    申请号:US12772700

    申请日:2010-05-03

    Abstract: A set of network communications devices shares available power among themselves to meet overall system power loading. An individual device is configured to include a local power supply delivering power to a local power bus at a local supply voltage varied in response to a voltage control signal. A protection component is connected between the local power bus and an external power cable used to connect the device to another device for sharing power. The protection component provides an interruptible low-impedance DC path for carrying current based on direction and magnitude of a voltage difference between the local power bus and the external power cable. Control circuitry is used to: (a) drive a current-sharing bus connected among the devices to influence a value of a system current-sharing signal indicating a level of system power loading among the devices; (b) generate a difference signal indicating a difference between local power loading of the local power supply and the system power loading reflected by the system current-sharing signal; and (c) generate the voltage control signal based on the difference signal to achieve a predetermined sharing of the system power loading by the local power supply.

    Abstract translation: 一组网络通信设备在它们之间共享可用电力以满足整个系统功率负载。 单个设备被配置为包括本地电源,其以响应于电压控制信号而变化的本地电源电压向本地电力总线传送电力。 保护组件连接在本地电源总线和用于将设备连接到另一设备以共享电源的外部电源线之间。 保护元件提供了一个可中断的低阻抗直流路径,用于根据本地电源总线和外部电源线之间的电压差的方向和幅值传送电流。 控制电路用于:(a)驱动连接在所述设备之间的电流共享总线,以影响指示所述设备之间的系统功率负载水平的系统电流共享信号的值; (b)产生指示本地电源的局部功率负载与由系统分流信号反映的系统功率负载之间的差异的差分信号; 和(c)基于差分信号产生电压控制信号,以实现由本地电源预先共享的系统功率负载。

    Method and apparatus for errorless frame timing adjustment
    6.
    发明授权
    Method and apparatus for errorless frame timing adjustment 有权
    无错帧定时调整的方法和装置

    公开(公告)号:US07551640B1

    公开(公告)日:2009-06-23

    申请号:US10251641

    申请日:2002-09-20

    CPC classification number: H04J3/0623 H04J3/0691 H04J2203/0012

    Abstract: A frame timing adjustment apparatus is disclosed. The apparatus includes an ingress framing unit, an egress framing unit coupled to the ingress framing unit, and a framing control unit coupled to control the ingress framing unit and the egress framing unit. The ingress framing unit is configured to generate an adjusted frame by virtue of being configured to adjust a position of information within a frame. The egress framing unit is configured to frame on the adjusted frame. The framing control unit is coupled to control the ingress framing unit to generate the adjusted frame and the egress framing unit to frame the adjusted frame.

    Abstract translation: 公开了一种帧定时调整装置。 该装置包括入口成帧单元,耦合到入口成帧单元的出口成帧单元,以及耦合以控制入口成帧单元和出口成帧单元的成帧控制单元。 入口成帧单元被配置为通过被配置为调整帧内的信息的位置来生成经调整的帧。 出口成帧单元配置为在调整帧上进行帧。 成帧控制单元被耦合以控制入口成帧单元以产生经调整的帧,并且出站成帧单元对调整帧进行帧化。

    Software programmable delay circuit
    7.
    发明授权
    Software programmable delay circuit 有权
    软件可编程延时电路

    公开(公告)号:US06518811B1

    公开(公告)日:2003-02-11

    申请号:US09752367

    申请日:2000-12-29

    CPC classification number: H04J3/0688 H03H17/08 H04J3/0691

    Abstract: A phase adjustment circuit has a signal path having a plurality of phase adjustment elements coupled together. Each of the phase adjustment elements of the plurality has a first path and a second path. The second path of each of the phase adjustment elements of the plurality adds a smaller amount of phase adjustment to the signal path than the first path of each of the phase adjustment elements of the plurality. The amount of phase adjustment added by each of the phase adjustment elements of the plurality is cumulative. The phase adjustment circuit also has a selection circuit coupled to each of the phase adjustment elements of the plurality to provide selection of either the first path or the second path of each of the phase adjustment elements of the plurality.

    Abstract translation: 相位调整电路具有连接在一起的多个相位调整元件的信号路径。 多个相位调整元件中的每一个具有第一路径和第二路径。 多个相位调整元件的第二路径与多个相位调整元件的每一个的第一路径相比,对信号路径增加较少量的相位调整。 由多个相位调整元件相加的相位调整量是累积的。 相位调整电路还具有耦合到多个相位调整元件中的每一个的选择电路,以提供多个相位调整元件中的每一个的第一路径或第二路径的选择。

    Power sharing network communications device
    8.
    发明授权
    Power sharing network communications device 有权
    电力共享网络通信设备

    公开(公告)号:US08310089B2

    公开(公告)日:2012-11-13

    申请号:US12772700

    申请日:2010-05-03

    Abstract: A set of network communications devices shares available power among themselves to meet overall system power loading. An individual device is configured to include a local power supply delivering power to a local power bus at a local supply voltage varied in response to a voltage control signal. A protection component is connected between the local power bus and an external power cable used to connect the device to another device for sharing power. The protection component provides an interruptible low-impedance DC path for carrying current based on direction and magnitude of a voltage difference between the local power bus and the external power cable. Control circuitry is used to: (a) drive a current-sharing bus connected among the devices to influence a value of a system current-sharing signal indicating a level of system power loading among the devices; (b) generate a difference signal indicating a difference between local power loading of the local power supply and the system power loading reflected by the system current-sharing signal; and (c) generate the voltage control signal based on the difference signal to achieve a predetermined sharing of the system power loading by the local power supply.

    Abstract translation: 一组网络通信设备在它们之间共享可用电力以满足整个系统功率负载。 单个设备被配置为包括本地电源,其以响应于电压控制信号而变化的本地电源电压向本地电力总线传送电力。 保护组件连接在本地电源总线和用于将设备连接到另一设备以共享电源的外部电源线之间。 保护元件提供了一个可中断的低阻抗直流路径,用于根据本地电源总线和外部电源线之间的电压差的方向和幅值传送电流。 控制电路用于:(a)驱动连接在所述设备之间的电流共享总线,以影响指示所述设备之间的系统功率负载水平的系统电流共享信号的值; (b)产生指示本地电源的局部功率负载与由系统分流信号反映的系统功率负载之间的差异的差分信号; 和(c)基于差分信号产生电压控制信号,以实现由本地电源预先共享的系统功率负载。

    Method and apparatus for phase aligning two clock signals utilizing a programmable phase adjustment circuit
    9.
    发明授权
    Method and apparatus for phase aligning two clock signals utilizing a programmable phase adjustment circuit 有权
    使用可编程相位调整电路对两个时钟信号进行相位对准的方法和装置

    公开(公告)号:US06549046B1

    公开(公告)日:2003-04-15

    申请号:US09751995

    申请日:2000-12-29

    CPC classification number: H04J3/0688 H03L7/00 H04J3/0691

    Abstract: An apparatus, method, communications device and computer readable medium for phase aligning two clocks and providing a graceful switch between active and standby circuitry is disclosed. A reporting circuit receives a measured phase difference between a first clock signal and a second clock signal, a selection circuit selects a configurable phase adjustment according to the measured phase difference, and a granularity adjustment circuit adds the configurable phase adjustment to the first clock signal generating a phase adjusted clock signal. The measured phase difference is compared to a maximum allowable phase difference value such that a phase adjustment is added to the first clock signal if the measured phase difference is greater than the maximum allowable phase difference value. The process is repeated until the measured phase difference is not greater than the maximum allowable phase difference value.

    Abstract translation: 公开了一种用于相位对准两个时钟并在主动和备用电路之间提供优雅开关的装置,方法,通信装置和计算机可读介质。 报告电路接收第一时钟信号和第二时钟信号之间的测量相位差,选择电路根据所测量的相位差选择可配置的相位调整,并且粒度调整电路将可配置相位调整添加到产生第一时钟信号的第一时钟信号 相位调整的时钟信号。 将测量的相位差与最大允许相位差进行比较,使得如果测量的相位差大于最大允许相位差值,则将相位调整添加到第一时钟信号。 重复该过程,直到所测量的相位差不大于最大允许相位差值。

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