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    Network device including central and distributed switch fabric subsystems
    1.
    发明授权
    Network device including central and distributed switch fabric subsystems 有权
    网络设备包括中央和分布式交换矩阵子系统

    公开(公告)号：US07039046B1

    公开(公告)日：2006-05-02

    申请号：US09613940

    申请日：2000-07-11

    申请人： Corey Simons ,  Brian Branscomb ,  Colin Bell ,  Chris R. Noel ,  Larry B. Manor ,  Peter B. Everdell

    发明人： Corey Simons ,  Brian Branscomb ,  Colin Bell ,  Chris R. Noel ,  Larry B. Manor ,  Peter B. Everdell

    IPC分类号： H04L12/50

    CPC分类号： H04L49/15 ,  H04L49/254

    摘要： The present invention reduces the cost of a minimally configured network device by providing a network device with a distributed switch fabric. Such a network device locates a portion of the switch fabric functionality on each forwarding card allowing the minimal network device configuration to include less than the entire switch fabric functionality. The cost of the minimal configuration is, therefore, reduced allowing network service providers to more quickly recover the initial cost of the network device. As new services are requested, additional functionality, including both forwarding cards and universal port cards may be added to the network device to handle the new requests, and the fees for the new services may be applied to the cost of the additional functionality. Consequently, the cost of the network device more closely tracks the service fees received by network providers.

    摘要翻译： 本发明通过向网络设备提供分布式交换结构来降低最低配置的网络设备的成本。 这样的网络设备在每个转发卡上定位交换结构功能的一部分，允许最小的网络设备配置包括少于整个交换结构功能。 因此，最小配置的成本降低，允许网络服务提供商更快地恢复网络设备的初始成本。 当请求新服务时，可以向网络设备添加包括转发卡和通用端口卡的附加功能来处理新的请求，并且新服务的费用可以应用于附加功能的成本。 因此，网络设备的成本更加紧密地跟踪网络提供商接收的服务费用。

    Network device with a distributed switch fabric timing system
    2.
    发明授权
    Network device with a distributed switch fabric timing system 有权
    具有分布式交换机网络设备定时系统

    公开(公告)号：US06876652B1

    公开(公告)日：2005-04-05

    申请号：US09614187

    申请日：2000-07-11

    申请人： Colin Bell ,  Brian Branscomb

    发明人： Colin Bell ,  Brian Branscomb

    IPC分类号： G06F1/14 ,  H04J3/06 ,  H04L7/00 ,  H04L12/24 ,  H04L12/56 ,  H04L29/06 ,  H04L12/50

    CPC分类号： H04L7/0008 ,  G06F1/14 ,  H04J3/0685 ,  H04L29/06 ,  H04L41/0803 ,  H04L41/085 ,  H04L41/22 ,  H04L45/50 ,  H04L69/18

    摘要： The present invention provides a central switch fabric timing subsystem and distributed switch fabric timing subsystems. Distributed switch fabric subsystems reduce the cost of a minimally configured network device by providing a network device with a distributed switch fabric. Such a network device locates a portion of the switch fabric functionality on each forwarding card allowing the minimal network device configuration to include less than the entire switch fabric functionality. The cost of the minimal configuration is, therefore, reduced allowing network service providers to more quickly recover the initial cost of the network device. As new services are requested, additional functionality, including both forwarding cards and universal port cards may be added to the network device to handle the new requests, and the fees for the new services may be applied to the cost of the additional functionality. Consequently, the cost of the network device more closely tracks the service fees received by network providers.

    摘要翻译： 本发明提供了一种中央交换矩阵定时子系统和分布式交换结构定时子系统。 分布式交换矩阵子系统通过向网络设备提供分布式交换结构来降低最低配置的网络设备的成本。 这样的网络设备在每个转发卡上定位交换结构功能的一部分，允许最小的网络设备配置包括少于整个交换结构功能。 因此，最小配置的成本降低，允许网络服务提供商更快地恢复网络设备的初始成本。 当请求新服务时，可以向网络设备添加包括转发卡和通用端口卡的附加功能来处理新的请求，并且新服务的费用可以应用于附加功能的成本。 因此，网络设备的成本更加紧密地跟踪网络提供商接收的服务费用。

    Network device with local timing systems for automatic selection between redundant, synchronous central timing systems
    3.
    发明授权
    Network device with local timing systems for automatic selection between redundant, synchronous central timing systems 有权
    具有本地定时系统的网络设备，可在冗余同步中心定时系统之间进行自动选择

    公开(公告)号：US06658579B1

    公开(公告)日：2003-12-02

    申请号：US09613774

    申请日：2000-07-11

    申请人： Colin Bell ,  Brian Branscomb ,  Mike A. Sluyski

    发明人： Colin Bell ,  Brian Branscomb ,  Mike A. Sluyski

    IPC分类号： G06F104

    CPC分类号： H04L7/0008 ,  H04L29/06 ,  H04L41/082 ,  H04L41/0856 ,  H04L41/22 ,  H04L45/50 ,  H04L69/18

    摘要： The present invention provides a network device including redundant, synchronous central timing subsystems (CTSs) and local timing subsystems (LTSs) including control circuits for automatically selecting between reference signals from both central timing subsystems. Automatically selecting between reference timing signals allows each LTS to quickly switchover from a failing or failed reference timing signal to a good reference timing signal. Quick switchovers prevent data corruption errors that may result during slow switchovers where a failing or failed reference signal is used for a longer period of time prior to the switch over. In addition, since each LTS independently monitors its received reference timing signals, a problem on one reference timing signal is quickly detected by the LTS and the LTS switches over to the good reference timing signal regardless of whether any other LTSs detect a problem with their received reference timing signals. Consequently, each LTS that detects a problem with a timing reference signal may immediately switch over to a good reference signal and not be forced to wait for all LTSs to be switched over.

    摘要翻译： 本发明提供一种包括冗余的同步中心定时子系统（CTS）和本地定时子系统（LTS）的网络设备，其包括用于在来自两个中央定时子系统的参考信号之间自动选择的控制电路。 在参考定时信号之间自动选择允许每个LTS从故障或故障参考定时信号快速切换到良好的参考定时信号。 快速切换可以防止在切换之前长时间使用故障或失败的参考信号的慢速切换期间可能导致的数据损坏错误。 另外，由于每个LTS独立地监视其接收到的参考定时信号，所以LTS快速检测到一个参考定时信号的问题，并且LTS切换到良好的参考定时信号，而不管其他LTS是否检测到它们接收到的问题 参考定时信号。 因此，检测定时参考信号的问题的每个LTS可以立即切换到良好的参考信号，并且不被迫等待所有LTS被切换。

    Network device with embedded timing synchronization
    4.
    发明授权
    Network device with embedded timing synchronization 有权
    具有嵌入式定时同步的网络设备

    公开(公告)号：US06868092B1

    公开(公告)日：2005-03-15

    申请号：US09613682

    申请日：2000-07-11

    申请人： Colin Bell ,  Brian Branscomb

    发明人： Colin Bell ,  Brian Branscomb

    IPC分类号： G06F1/14 ,  H04J3/06 ,  H04L7/00 ,  H04L12/24 ,  H04L12/56 ,  H04L29/06 ,  H04L12/28

    CPC分类号： H04L7/0008 ,  G06F1/14 ,  H04J3/0685 ,  H04L29/06 ,  H04L41/0803 ,  H04L41/085 ,  H04L41/22 ,  H04L45/50 ,  H04L69/18

    摘要： The present invention provides a network device including a central timing subsystem for distributing one or more timing reference signals including a main timing signal and an embedded timing signal. Embedding one timing signal within another reduces the routing resources necessary to route the timing signal(s) within the network device. In addition, one central timing system, as opposed to two or more, may be used to provide multiple different synchronous clock signals. In one embodiment, the main timing signal is used for network data transfer while the embedded signal is used at least for processor synchronization. Consequently, a separate central timing subsystem is not required for generation and distribution of processor timing reference signals, and separate routing resources are not required for the processor timing reference signals. In addition, separate local timing subsystems for both the central timing and processor timing are not necessary. Embedding the processor timing reference signal within a highly accurate, redundant external timing reference signal also provides a highly accurate and redundant processor timing reference signal, and having a common local timing subsystem is more efficient resulting in less design time, less debug time, less risk, design re-use and simulation re-use.

    摘要翻译： 本发明提供了一种网络设备，其包括用于分发一个或多个定时参考信号的中央定时子系统，包括主定时信号和嵌入定时信号。 在其中嵌入一个定时信号减少了在网络设备内路由定时信号所需的路由资源。 此外，与两个或更多个相反的一个中央定时系统可以用于提供多个不同的同步时钟信号。 在一个实施例中，主定时信号用于网络数据传输，而嵌入信号至少用于处理器同步。 因此，处理器定时参考信号的生成和分配不需要单独的中央定时子系统，并且处理器定时参考信号不需要单独的路由资源。 此外，不需要用于中央定时和处理器时序的单独的本地时序子系统。 将处理器定时参考信号嵌入高度精确，冗余的外部定时参考信号中还提供高度精确和冗余的处理器定时参考信号，并且具有公共本地时序子系统更有效，从而减少设计时间，减少调试时间，减少风险 ，设计重用和模拟重用。

    Detection Device and Method
    5.
    发明申请
    Detection Device and Method 有权
    检测装置及方法

    公开(公告)号：US20070217673A1

    公开(公告)日：2007-09-20

    申请号：US11659848

    申请日：2005-09-07

    申请人： Victor Stimpson ,  Colin Bell ,  William Davies ,  Paul Maxted

    发明人： Victor Stimpson ,  Colin Bell ,  William Davies ,  Paul Maxted

    IPC分类号： B23Q17/09

    CPC分类号： B23Q17/2442 ,  G05B2219/37233

    摘要： A device and method for detecting the presence or absence of an object which has repetitive motion are disclosed comprising, a receiver for receiving a signal from the object, and circuitry for determining the presence or absence of the object to be detected, wherein the circuitry records the signal from the receiver as a pattern of data during at least part of the repetitive motion of the object, compares the data with a previously recorded data pattern and, produces an output signal based on the comparison. The signal may be received during discrete time intervals, and may be light which can be transmitted with varying intensity. The circuitry may determine the value of signal received at a receiver and produce a binary value. The signal received at the receiver can be reflected from the object to be detected.

    摘要翻译： 公开了一种用于检测具有重复运动的对象的存在或不存在的装置和方法，包括：用于从对象接收信号的接收器和用于确定要检测的对象的存在或不存在的电路，其中电路记录 在对象的重复运动的至少一部分期间来自接收机的信号作为数据的模式，将数据与先前记录的数据模式进行比较，并且基于该比较产生输出信号。 可以在离散的时间间隔期间接收信号，并且可以是可以以不同强度传输的光。 电路可以确定在接收机处接收的信号的值并产生二进制值。 在接收器处接收的信号可以从待检测对象反射。

    Broken tool detector
    6.
    发明申请
    Broken tool detector 审中-公开
    刀具检测器损坏

    公开(公告)号：US20050161622A1

    公开(公告)日：2005-07-28

    申请号：US10512944

    申请日：2003-05-02

    申请人： Colin Bell ,  Victor Stimpson

    发明人： Colin Bell ,  Victor Stimpson

    IPC分类号： B23Q17/09 ,  B23Q17/24 ,  G21G4/00

    CPC分类号： B23Q17/2485 ,  B23Q17/0909

    摘要： This invention relates to the detection of tool (50) and other items used on machines by use of a detector (5). An emitter (10) emits a beam of laser light (20) and sensor (30) is used to determine the presence or absence of a tool (50) when the tool is positioned in the beam. If any light is present at the sensor (30) within a predetermined time period then the tool must be broken and the output of the detector is latched. Thus if a broken tool is present and contamination obstructs the beam then this is ignored provided some light is sensed.

    摘要翻译： 本发明涉及通过使用检测器（5）检测工具（50）和在机器上使用的其它物品。 发射器（10）发射激光束（20），并且当工具定位在光束中时，传感器（30）用于确定工具（50）的存在或不存在。 如果在预定时间段内存在传感器（30）处的任何光，则工具必须被破坏并且检测器的输出被锁存。 因此，如果存在破损的工具，并且污染物阻碍光束，则如果感测到某些光，则这被忽略。

    Redundant, synchronous central timing systems with constant master voltage controls and variable slave voltage controls
    8.
    发明授权
    Redundant, synchronous central timing systems with constant master voltage controls and variable slave voltage controls 有权
    具有恒定主电压控制和可变从属电压控制的冗余同步中心定时系统

    公开(公告)号：US06658580B1

    公开(公告)日：2003-12-02

    申请号：US09613988

    申请日：2000-07-11

    申请人： Colin Bell ,  Mike A. Sluyski

    发明人： Colin Bell ,  Mike A. Sluyski

    IPC分类号： G06F112

    CPC分类号： G06F1/14 ,  H04J3/0685 ,  H04L7/0008 ,  H04L29/06 ,  H04L41/0803 ,  H04L41/082 ,  H04L41/085 ,  H04L41/0859 ,  H04L41/0863 ,  H04L41/22 ,  H04L45/50 ,  H04L69/18 ,  H05K1/14

    摘要： The present invention provides a network device including redundant, synchronous central timing subsystems (CTSs) each having a voltage controlled timing circuit for receiving a constant master voltage signal and variable slave voltage signal. Each CTS also includes a control logic circuit for selecting the constant master voltage signal for use by the voltage controlled timing circuit when the CTS is master and for selecting the variable slave voltage signal when the CTS is slave. Using a constant master voltage signal eliminates the need for a separate master oscillator in each CTS. Oscillators are typically expensive, consume significant space on the printed circuit board and have location restrictions on where they may be placed on the printed circuit board.

    摘要翻译： 本发明提供了一种网络设备，其包括冗余的同步中心定时子系统（CTS），每个中间定时子系统具有用于接收恒定的主电压信号和可变从属电压信号的电压控制定时电路。 每个CTS还包括一个控制逻辑电路，用于选择恒定的主电压信号，供CST为主时由电压控制定时电路使用，并在CTS为从机时选择可变从电压信号。 使用恒定的主电压信号消除了在每个CTS中需要单独的主振荡器。 振荡器通常是昂贵的，消耗了印刷电路板上的大量空间，并且它们可能被放置在印刷电路板上的位置受到限制。