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    • 41. 发明授权
    • Multicast optimization in a VLAN tagged network
    • VLAN标记网络中的组播优化
    • US07512124B2
    • 2009-03-31
    • US10714384
    • 2003-11-14
    • Robert Leon SangronizJeremy Lynn GarffMark Armand FineJeffrey Glenn Thomas
    • Robert Leon SangronizJeremy Lynn GarffMark Armand FineJeffrey Glenn Thomas
    • H04L12/56
    • H04L12/4645H04L12/185H04L12/1886H04L12/4641H04L45/04H04L45/16
    • A method and apparatus for optimizing multicast traffic in a VLAN-tagged environment is disclosed. The method, implemented by a cross-VLAN switching device, comprises the steps of receiving a multicast stream within a first VLAN of a plurality of VLANs configured thereon, and internally distributing the multicast stream towards substantially all the multicast group members registered at the cross-VLAN switching device to receive the multicast stream. Distribution of the multicast stream preferably comprises the steps of internally routing the multicast stream from the first VLAN to each VLAN in which there is a multicast group member registered to receive the multicast stream and then switching the multicast stream from each VLAN in which it is present in a cross-VLAN switching device to substantially all of the multicast group members registered to receive the multicast stream. In accordance with the invention, only a single copy of a multicast stream propagates across said one or more VLAN-tagged communications links, thereby avoiding one or more duplicative multicast streams that generally occur when there are multicast group members in a plurality of VLANs.
    • 公开了一种在VLAN标签环境中优化组播流量的方法和装置。 由跨VLAN交换设备实现的方法包括以下步骤:在配置在其上的多个VLAN的第一VLAN内接收组播流,并将多播流内部分配到基本上全部在交叉VLAN上注册的多播组成员, VLAN交换设备接收组播流。 多播流的分发优选地包括将组播流从第一VLAN内部路由到已经注册了多个组播组成员的每个VLAN接收组播流,然后从其中存在的每个VLAN切换组播流的步骤 在交叉VLAN交换设备中基本上所有被注册以接收多播流的多播组成员。 根据本发明,组播流的单个副本仅在所述一个或多个VLAN标记的通信链路上传播,从而避免在多个VLAN中存在多播组成员时通常发生的一个或多个重复组播流。
    • 46. 发明授权
    • Bus monitor system
    • 总线监控系统
    • US5729678A
    • 1998-03-17
    • US611984
    • 1996-03-04
    • Jeffrey Glenn HuntThomas Jay PerryMichael GilbertRandall Lew BrownJames B. Southway, Jr.
    • Jeffrey Glenn HuntThomas Jay PerryMichael GilbertRandall Lew BrownJames B. Southway, Jr.
    • G06F11/34G06F11/00
    • G06F11/349G06F11/348G06F2201/86
    • A bus monitor system comprises eight identical programmable monitor circuits that are each connected to a monitored bus and to a local 16-bit event bus. There are three interfaces to the event bus within each monitor circuit. One interface asserts a predetermined bit pattern on the event bus when match conditions occur between bit patterns on the monitored bus and predetermined bit patterns stored in monitor circuit registers. A second interface asserts a signal on an external pin when bit patterns on the event bus match a predetermined bit pattern stored in a monitor circuit register. A third interface asserts a predetermined bit pattern on the event bus when an external device has asserted a signal on an external pin. Each monitor circuit is capable of reading and asserting any of the bits of the event bus. The event bus is used to enable or disable monitor circuit interfaces. If any asserted bit on the event bus matches a corresponding bit of one of the predetermined bit patterns stored in the interface enable and disable registers, that interface will be enabled or disabled, respectively. The event bus gives the monitor system the ability to simultaneously monitor for multiple bit patterns on the monitored bus, and to monitor for a sequence of bit patterns by having one monitor circuit trigger another.
    • 总线监视器系统包括八个相同的可编程监视器电路,每个连接到被监视的总线和本地的16位事件总线。 每个监控电路中有三个接口连接事件总线。 当匹配条件出现在被监视总线上的位模式和存储在监视电路寄存器中的预定位模式之间时,一个接口在事件总线上确定预定位模式。 当事件总线上的位模式匹配存储在监视器电路寄存器中的预定位模式时,第二接口在外部引脚上产生信号。 当外部设备在外部引脚上断言信号时,第三个接口在事件总线上产生一个预定的位模式。 每个监视器电路能够读取和断言事件总线的任何位。 事件总线用于启用或禁用监视器电路接口。 如果事件总线上的任何有效位匹配存储在接口使能和禁止寄存器中的预定位模式之一的相应位,则该接口将分别被使能或禁止。 事件总线使监视器系统能够同时监视被监视总线上的多个位模式,并通过使一个监视器电路触发另一个监视器电路来监视一系列位模式。
    • 47. 发明申请
    • IDENTIFICATION OF ROTOR BROKEN BAR IN PRESENCE OF LOAD PULSATION
    • 确定转子断条在载荷下的存在
    • US20120109546A1
    • 2012-05-03
    • US12916166
    • 2010-10-29
    • Arvind Kumar TiwariArijit BanerjeeJeffrey Glenn Mazereeuw
    • Arvind Kumar TiwariArijit BanerjeeJeffrey Glenn Mazereeuw
    • G01R31/34H02H7/08
    • G01R31/343
    • A method for detecting an anomaly in a rotor of an induction machine is provided. The method includes obtaining or receiving three-phase stator voltage and current signals from the induction machine connected to a time varying load. The method also includes processing the three-phase stator voltage and current signals by transforming into corresponding two-phase quantities. Further, the method includes transforming the two-phase quantities into two quadrature components into a two-phase reference frame. The method includes analyzing a plurality of in-phase components and the quadrature components. Finally, the method includes detecting the presence of an anomaly and segregating the anomaly from load variations based on the analysis of the plurality of in phase components and the quadrature components, thereby reducing false alarm.
    • 提供一种用于检测感应电机的转子中的异常的方法。 该方法包括从连接到时变负载的感应电机获取或接收三相定子电压和电流信号。 该方法还包括通过转换成相应的两相量来处理三相定子电压和电流信号。 此外,该方法包括将两相量变换为两相正交分量成两相参考系。 该方法包括分析多个同相分量和正交分量。 最后,该方法包括基于多个同相分量和正交分量的分析来检测异常的存在并将异常与负载变化隔离,从而减少误报。