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公开(公告)号：US08204700B2
公开(公告)日：2012-06-19
申请号：US12327333
申请日：2008-12-03
IPC分类号： G01R31/00
CPC分类号： H01S5/0021 , H01S5/06825
摘要： An optical pickup which has a failure prediction apparatus for predicting a failure of a laser diode has an input inputting a value of a current that flows through the laser diode and is measured at predetermined time intervals, a storage storing the current values inputted by said input, a detector detecting a current value that is a current value at any one of the measurement times of day stored in said storage and that has a change greater than or equal to a predetermined value relative to the current value at the preceding measurement time of day, and a generator generating a prediction curve that indicates a relationship between said elapsed time and the current value applicable at and after the measurement time of day of the current value detected by said detector.
摘要翻译： 具有用于预测激光二极管的故障的故障预测装置的光学拾取器具有输入输入流经激光二极管的电流值并以预定时间间隔测量的存储器，存储由所述输入端输入的电流值 检测器，其检测作为当前值的当前值，所述当前值是存储在所述存储器中的一天的测量时间，并且相对于当前测量时间的当前值具有大于或等于预定值的变化 生成指示所述经过时间与由所述检测器检测的当前值的测量时间之后和之后适用的当前值之间的关系的预测曲线。
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2.发明授权Carrier network of virtual network system and communication node of carrier network 有权虚拟网络系统的运营商网络和运营商网络的通信节点公开(公告)号：US07633889B2
公开(公告)日：2009-12-15
申请号：US11060717
申请日：2005-02-17
IPC分类号： H04L12/28 , H04L12/56 , G06F15/173 , G06F15/177 , G06F15/16
CPC分类号： H04L45/00 , H04L12/4666 , H04L45/18
摘要： The present invention provides a carrier network in which a spanning tree with no loops can be constructed even in a dual homing configuration, and a communication method for a control frame. By allocating an identical virtual network identifier to a plurality of user networks connected to the carrier network, a single virtual network is constituted. An ingress communication node connected to a first user network of the plurality of user networks attaches a tag including the virtual network identifier to a control frame transmitted from the first user network, and transmits the control frame attached with the tag to a transmission destination determined on the basis of the virtual network identifier. An egress communication node connected to a second user network of the plurality of user networks receives the control frame attached with the tag, which is to be transmitted to the second user network, removes the tag from the control frame attached with the tag, and transmits the control frame to the second user network.
摘要翻译： 本发明提供一种运营商网络，其中即使在双归属配置中也可以构建不具有循环的生成树，以及用于控制帧的通信方法。 通过向连接到运营商网络的多个用户网络分配相同的虚拟网络标识符，构成单个虚拟网络。 连接到所述多个用户网络中的第一用户网络的入口通信节点将包括所述虚拟网络标识符的标签附加到从所述第一用户网络发送的控制帧，并将附加有所述标签的控制帧发送到确定的发送目的地 虚拟网络标识符的基础。 连接到多个用户网络中的第二用户网络的出口通信节点接收附加有要发送到第二用户网络的标签的控制帧，从附加有标签的控制帧中移除标签，并发送 控制帧到第二用户网络。
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公开(公告)号：US07400634B2
公开(公告)日：2008-07-15
申请号：US11038282
申请日：2005-01-21
IPC分类号： H04L12/56
CPC分类号： H04L41/12
摘要： In a network providing a wide-area LAN service which allows communications to be performed between user networks (12, 13) via a carrier network (11), edge switches (14, 15) each comprise: a tentative learning registration means (16) which, when a packet whose source MAC address and receiving port are not yet learned is received from the carrier network, registers the source MAC address and the receiving port in a tentatively learned state; a learned state changing means (17) which changes the learned state of the destination MAC address of a packet received from an associated one of the user networks to a permanently learned state; and a permanent learning registration means which, when a packet whose destination MAC address is registered in a learned state is received from the carrier network, registers the source MAC address and receiving port of the packet received from the carrier network in a permanently learned state. The invention thus provides a MAC address learning apparatus that improves the hit rate in a MAC address learning table maintained in each of the edge switches (14, 15) provided in a wide-area VLAN carrier network.
摘要翻译： 在提供允许经由运营商网络（11）在用户网络（12,13）之间进行通信的广域LAN服务的网络中，边缘交换机（14,15）各自包括：暂定学习注册装置（16） 当从运营商网络接收到源MAC地址和接收端口尚未学习的报文时，将该源MAC地址和接收端口注册为暂时学习状态; 学习状态改变装置（17），其将从相关联的一个用户网络接收的分组的目的地MAC地址的学习状态改变为永久学习状态; 以及永久学习注册装置，当从运营商网络接收到目的地MAC地址被登记为学习状态的分组时，将从运营商网络接收的分组的源MAC地址和接收端口注册为永久学习状态。 因此，本发明提供了一种改善在广域VLAN运营商网络中提供的每个边缘交换机（14,15）中维护的MAC地址学习表中的命中率的MAC地址学习装置。
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公开(公告)号：US07095712B2
公开(公告)日：2006-08-22
申请号：US10039611
申请日：2001-11-09
IPC分类号： G01R31/08
CPC分类号： H04L45/00 , H04L45/22 , H04L45/28 , H04L45/50 , H04L45/62 , H04L47/70 , H04L47/728 , H04L47/825
摘要： When setting up a working path, a protection path is automatically set up by taking each node on the working path as a start point. A working path setup request message carrying “protection needed/not-needed” information is transmitted from an ingress node toward an egress node along the route of the working path. When transferring a path setup response message as a response to it, each node autonomously determines the route of the protection path and sends out a protection path setup request message along the route of the protection path.
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公开(公告)号：US20060092860A1
公开(公告)日：2006-05-04
申请号：US11038282
申请日：2005-01-21
IPC分类号： H04L12/28
CPC分类号： H04L41/12
摘要： In a network providing a wide-area LAN service which allows communications to be performed between user networks (12, 13) via a carrier network (11), edge switches (14, 15) each comprise: a tentative learning registration means (16) which, when a packet whose source MAC address and receiving port are not yet learned is received from the carrier network, registers the source MAC address and the receiving port in a tentatively learned state; a learned state changing means (17) which changes the learned state of the destination MAC address of a packet received from an associated one of the user networks to a permanently learned state; and a permanent learning registration means which, when a packet whose destination MAC address is registered in a learned state is received from the carrier network, registers the source MAC address and receiving port of the packet received from the carrier network in a permanently learned state. The invention thus provides a MAC address learning apparatus that improves the hit rate in a MAC address learning table maintained in each of the edge switches (14, 15) provided in a wide-area VLAN carrier network.
摘要翻译： 在提供允许经由运营商网络（11）在用户网络（12,13）之间进行通信的广域LAN服务的网络中，边缘交换机（14,15）各自包括：暂定学习注册装置（16） 当从运营商网络接收到源MAC地址和接收端口尚未学习的报文时，将该源MAC地址和接收端口注册为暂时学习状态; 学习状态改变装置（17），其将从相关联的一个用户网络接收的分组的目的地MAC地址的学习状态改变为永久学习状态; 以及永久学习注册装置，当从运营商网络接收到目的地MAC地址被登记为学习状态的分组时，将从运营商网络接收的分组的源MAC地址和接收端口注册为永久学习状态。 因此，本发明提供了一种改善在广域VLAN运营商网络中提供的每个边缘交换机（14,15）中维护的MAC地址学习表中的命中率的MAC地址学习装置。
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6.发明申请Carrier network of virtual network system and communication node of carrier network 有权虚拟网络系统的运营商网络和运营商网络的通信节点公开(公告)号：US20050163102A1
公开(公告)日：2005-07-28
申请号：US11060717
申请日：2005-02-17
CPC分类号： H04L45/00 , H04L12/4666 , H04L45/18
摘要： The present invention provides a carrier network in which a spanning tree with no loops can be constructed even in a dual homing configuration, and a communication method for a control frame. By allocating an identical virtual network identifier to a plurality of user networks connected to the carrier network, a single virtual network is constituted. An ingress communication node connected to a first user network of the plurality of user networks attaches a tag including the virtual network identifier to a control frame transmitted from the first user network, and transmits the control frame attached with the tag to a transmission destination determined on the basis of the virtual network identifier. An egress communication node connected to a second user network of the plurality of user networks receives the control frame attached with the tag, which is to be transmitted to the second user network, removes the tag from the control frame attached with the tag, and transmits the control frame to the second user network.
摘要翻译： 本发明提供一种运营商网络，其中即使在双归属配置中也可以构建不具有循环的生成树，以及用于控制帧的通信方法。 通过向连接到运营商网络的多个用户网络分配相同的虚拟网络标识符，构成单个虚拟网络。 连接到所述多个用户网络中的第一用户网络的入口通信节点将包括所述虚拟网络标识符的标签附加到从所述第一用户网络发送的控制帧，并将附加有所述标签的控制帧发送到确定的发送目的地 虚拟网络标识符的基础。 连接到多个用户网络中的第二用户网络的出口通信节点接收附加有要发送到第二用户网络的标签的控制帧，从附加有标签的控制帧中移除标签，并发送 控制帧到第二用户网络。
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