METHOD FOR SYNCHRONIZATION IN NETWORKS
    1.
    发明申请
    METHOD FOR SYNCHRONIZATION IN NETWORKS 有权
    网络同步的方法

    公开(公告)号:US20110090925A1

    公开(公告)日:2011-04-21

    申请号:US12732654

    申请日:2010-03-26

    CPC classification number: H04L12/1485 H04J3/0664 H04J3/0673

    Abstract: The invention relates to a method for synchronization in networks, whereby the local time (hloc) which is valid at the particular node, is updated at different nodes. For that purpose, timing messages are regularly transmitted by a freely selectable superior node (N1; N3; N6) and only by a superior node to an inferior node (N2, N3; N4-N6; N7), which receives the timing messages (M1-M8) and analyzes said messages for updating the local time (hloc) thereof. A minimum propagation time (dmin) is determined for a timing message (M1-M8) between an inferior node (N1; N3; N6) and a superior node (N2, N3; N4-N6; N7). When the inferior node (N2, N3; N4-N6; N7) receives a timing message (M1-M8), said inferior node extracts the local time of the superior node (N1; N3), which is contained in said timing message (M1-M8) and adds the minimum propagation time (dmin) thereto, in order to generate a reference time (tcomp,1-tcomp,8). Said reference time (tcomp,1-tcomp,8) is then compared with the proper local time (hloc). If the reference time is retarded in relation to the proper local time (hloc), said proper local time (hloc) is not updated. If said reference time is advanced in relation to the proper local time (hloc).

    Abstract translation: 本发明涉及一种在网络中同步的方法,由此在特定节点处有效的本地时间(hloc)在不同的节点被更新。 为此,定时消息由可自由选择的上级节点(N1; N3; N6)定期发送,并且仅由上级节点发送到接收定时消息的下级节点(N2,N3; N4-N6; N7) M1-M8)并且分析用于更新其本地时间(hloc)的所述消息。 对于下级节点(N1; N3; N6)和上级节点(N2,N3; N4-N6; N7)之间的定时消息(M1-M8)确定最小传播时间(dmin)。 当下级节点(N2,N3; N4-N6; N7)接收到定时消息(M1-M8)时,所述下级节点提取包含在所述定时消息中的上级节点(N1; N3)的本地时间 M1-M8),并且向其添加最小传播时间(dmin),以产生参考时间(tcomp,1-tcomp,8)。 然后将所述参考时间(tcomp,1-tcomp,8)与适当的本地时间(hloc)进行比较。 如果参考时间相对于适当的本地时间(hloc)延迟,则所述适当的本地时间(hloc)不被更新。 如果所述参考时间相对于适当的当地时间(hloc)提前。

    Method for synchronization in networks
    2.
    发明授权
    Method for synchronization in networks 有权
    网络同步方法

    公开(公告)号:US07716375B2

    公开(公告)日:2010-05-11

    申请号:US10496367

    申请日:2003-06-05

    CPC classification number: H04L12/1485 H04J3/0664 H04J3/0673

    Abstract: The invention relates to a method for synchronization in networks, whereby the local time (tloc) which is valid at the particular node, is updated at different nodes. For that purpose, timing messages are regularly transmitted by a freely selectable superior node (N1; N3; N6) and only by a superior node to an inferior node N2, N3; N4-N6; N7), which receives the timing messages M1-M8) and analyzes said messages for updating the local time (tloc) thereof. A minimum propagation time (dmin) is determined for a timing message (M1-M8) between an inferior node (N1;N3;N6) and a superior node (N2, N3; N4-N6; N7). When the inferior node (N2, N3; N4-N6; N7) receives a timing message (M1-M8), said inferior node extracts the local time of the superior node (N1; N3), which is contained in said timing message (M1-M8) and adds the minimum propagation time (dmin) thereto, in order to generate a reference time (tcomp,1-tcomp,8). Said reference time (tcomp,1-tcomp,8) is then compared with the proper local time (tloc). If the reference time is retarded in relation to the proper local time (tloc), said proper local time (tloc) is not updated. If said reference time is advanced in relation to the proper local time (tloc).

    Abstract translation: 本发明涉及一种在网络中进行同步的方法,由此在特定节点处有效的本地时间(tloc)在不同的节点被更新。 为此,定时消息通过可自由选择的上级节点(N1; N3; N6)定期发送,并且仅由上级节点发送到下级节点N2,N3; N4-N6; N7),其接收定时消息M1-M8)并分析用于更新其本地时间(tloc)的所述消息。 对于下级节点(N1; N3; N6)和上级节点(N2,N3; N4-N6; N7)之间的定时消息(M1-M8)确定最小传播时间(dmin)。 当下级节点(N2,N3; N4-N6; N7)接收到定时消息(M1-M8)时,所述下级节点提取包含在所述定时消息中的上级节点(N1; N3)的本地时间 M1-M8),并且向其添加最小传播时间(dmin),以产生参考时间(tcomp,1-tcomp,8)。 然后将所述参考时间(tcomp,1-tcomp,8)与适当的本地时间(tloc)进行比较。 如果参考时间相对于正确的本地时间(tloc)延迟,则所述适当的本地时间(tloc)不被更新。 如果所述参考时间相对于适当的当地时间(tloc)提前。

    Method for syncronization in networks
    3.
    发明申请
    Method for syncronization in networks 有权
    网络同步化方法

    公开(公告)号:US20050033862A1

    公开(公告)日:2005-02-10

    申请号:US10496367

    申请日:2003-06-05

    CPC classification number: H04L12/1485 H04J3/0664 H04J3/0673

    Abstract: The invention relates to a method for synchronization in networks, whereby the local time (tloc) which is valid at the particular node, is updated at different nodes. For that purpose, timing messages are regularly transmitted by a freely selectable superior node (N1; N3; N6) and only by a superior node to an inferior node N2, N3; N4-N6; N7), which receives the timing messages M1-M8) and analyses said messages for updating the local time (tloc) thereof. A minimum propagation time (dmin) is determined for a timing message (M1-M8) between an inferior node (N1;N3;N6) and a superior node (N2, N3; N4-N6; N7). When the inferior node (N2, N3; N4-N6; N7) receives a timing message (M1-M8), said inferior node extracts the local time of the superior node (N1; N3), which is contained in said timing message (M1-M8) and adds the minimum propagation time (dmin) thereto, in order to generate a reference time (tcomp,1-tcomp,2). Said reference time (tcomp,1-tcomp,2) is then compared with the proper local time (tloc). If the reference time is retarded in relation to the proper local time (tloc), said proper local time (tloc) is not updated. If said reference time is advanced in relation to the proper local time (tloc).

    Abstract translation: 本发明涉及一种在网络中进行同步的方法,由此在特定节点处有效的本地时间(tloc)在不同的节点被更新。 为此,定时消息通过可自由选择的上级节点(N1; N3; N6)定期发送,并且仅由上级节点发送到下级节点N2,N3; N4-N6; N7),其接收定时消息M1-M8)并分析用于更新其本地时间(tloc)的所述消息。 对于下级节点(N1; N3; N6)和上级节点(N2,N3; N4-N6; N7)之间的定时消息(M1-M8)确定最小传播时间(dmin)。 当下级节点(N2,N3; N4-N6; N7)接收到定时消息(M1-M8)时,所述下级节点提取包含在所述定时消息中的上级节点(N1; N3)的本地时间 M1-M8),并且将最小传播时间(dmin)加到其上,以产生参考时间(tcomp,1-tcomp,2)。 然后将所述参考时间(tcomp,1-tcomp,2)与适当的本地时间(tloc)进行比较。 如果参考时间相对于正确的本地时间(tloc)延迟,则所述适当的本地时间(tloc)不被更新。 如果所述参考时间相对于适当的当地时间(tloc)提前。

    Reference time distribution over a network
    4.
    发明授权
    Reference time distribution over a network 有权
    网络上的参考时间分布

    公开(公告)号:US08014423B2

    公开(公告)日:2011-09-06

    申请号:US09785598

    申请日:2001-02-16

    Abstract: A reference time distribution system and method use a data transmission network having a plurality of nodes to distribute the House Sync signal. A network-wide time signal is generated using a reference time generator, and the network-wide time signal is then distributed over the network to the plurality of nodes. At each node, the network-wide time signal is converted to a local synchronization signal for use in performing synchronization of the timing of each node. Either network-inherent timing and/or additional time signaling is used to provide the nodes attached to this network with a network-wide notion of time. The time information is converted locally into synchronization signals or time information as required by a respective application. When data is transported over the network, delay compensation is performed to simultaneously output different data streams that have been synchronously input into the network, regardless of the data path.

    Abstract translation: 参考时间分配系统和方法使用具有多个节点的数据传输网络来分发房屋同步信号。 使用参考时间发生器生成全网时间信号,然后将网络范围的时间信号通过网络分布到多个节点。 在每个节点处,将网络时间信号转换为本地同步信号,以用于执行每个节点的定时同步。 使用网络固有的定时和/或附加的时间信令来提供连接到该网络的节点,具有网络范围的时间概念。 时间信息根据各个应用的要求本地转换成同步信号或时间信息。 当通过网络传输数据时,执行延迟补偿以同时输出已经被同步地输入到网络的不同数据流,而不管数据路径如何。

    Multi-portal bridge for providing network connectivity
    5.
    发明授权
    Multi-portal bridge for providing network connectivity 有权
    用于提供网络连接的多门户网桥

    公开(公告)号:US06772267B2

    公开(公告)日:2004-08-03

    申请号:US09784831

    申请日:2001-02-16

    Abstract: Split IEEE 1394 bridges utilize individual portals or bundles of portals to communicate over a non-full-featured IEEE 1394 network such as a local or wide area network in combination with IEEE 1394 multi-portal bridges. Multi-portal bridges may be formed through the connection of several split bridges each with one or more IEEE 1394 portals over a core net. The core net is invisible to the IEEE 1394 nodes with respect to traffic originating from an IEEE 1394 bus for a destination in an IEEE 1394 bus, and the network elements allow for increased network scalability in both terms of physical size and levels of hierarchy. Useful properties of a core net such as availability of high-performance switches or increased reach are incorporated into an IEEE 1394 network.

    Abstract translation: 拆分IEEE 1394网桥使用各个门户或门户网络通过与IEEE 1394多门户网桥结合的非全功能IEEE 1394网络(如本地或广域网)进行通信。 可以通过连接多个分离网桥来形成多门户网桥,每个桥接器在核心网上具有一个或多个IEEE 1394门户。 核心网对于IEEE 1394节点对于IEEE 1394总线中的目的地的IEEE 1394总线的业务来说是不可见的,并且网络元件允许在物理大小和层次级别两个方面增加网络可扩展性。 诸如高性能交换机的可用性或增加的可达性的核心网的有用属性被并入到IEEE 1394网络中。

    Method for synchronization in networks
    6.
    发明授权
    Method for synchronization in networks 有权
    网络同步方法

    公开(公告)号:US08601165B2

    公开(公告)日:2013-12-03

    申请号:US12732654

    申请日:2010-03-26

    CPC classification number: H04L12/1485 H04J3/0664 H04J3/0673

    Abstract: The invention relates to a method for synchronization in networks, whereby the local time (tloc) which is valid at the particular node, is updated at different nodes. For that purpose, timing messages are regularly transmitted by a freely selectable superior node (N1; N3; N6) and only by a superior node to an inferior node (N2, N3; N4-N6; N7), which receives the timing messages (M1-M8) and analyzes said messages for updating the local time (tloc) thereof. A minimum propagation time (dmin) is determined for a timing message (M1-M8) between an inferior node (N1; N3; N6) and a superior node (N2, N3; N4-N6; N7). When the inferior node (N2, N3; N4-N6; N7) receives a timing message (M1-M8), said inferior node extracts the local time of the superior node (N1; N3), which is contained in said timing message (M1-M8) and adds the minimum propagation time (dmin) thereto, in order to generate a reference time (tcomp,1-tcomp,8). Said reference time (tcomp,1-tcomp,8) is then compared with the proper local time (tloc). If the reference time is retarded in relation to the proper local time (tloc), said proper local time (tloc) is not updated. If said reference time is advanced in relation to the proper local time (tloc).

    Abstract translation: 本发明涉及一种在网络中进行同步的方法,由此在特定节点处有效的本地时间(tloc)在不同的节点被更新。 为此,定时消息由可自由选择的上级节点(N1; N3; N6)定期发送,并且仅由上级节点发送到接收定时消息的下级节点(N2,N3; N4-N6; N7) M1-M8)并且分析用于更新其本地时间(tloc)的所述消息。 对于下级节点(N1; N3; N6)和上级节点(N2,N3; N4-N6; N7)之间的定时消息(M1-M8)确定最小传播时间(dmin)。 当下级节点(N2,N3; N4-N6; N7)接收到定时消息(M1-M8)时,所述下级节点提取包含在所述定时消息中的上级节点(N1; N3)的本地时间 M1-M8),并且向其添加最小传播时间(dmin),以产生参考时间(tcomp,1-tcomp,8)。 然后将所述参考时间(tcomp,1-tcomp,8)与适当的本地时间(tloc)进行比较。 如果参考时间相对于正确的本地时间(tloc)延迟,则所述适当的本地时间(tloc)不被更新。 如果所述参考时间相对于适当的当地时间(tloc)提前。

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