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    • 73. 发明授权
    • Data transmission method and apparatus
    • 数据传输方法及装置
    • US07751313B2
    • 2010-07-06
    • US11840355
    • 2007-08-17
    • Atsuko HigashitaniguchiHiroshi KinoshitaKunihiko Hamamoto
    • Atsuko HigashitaniguchiHiroshi KinoshitaKunihiko Hamamoto
    • G01R31/08
    • H04L45/00H04L45/24H04L45/28
    • In a data transmission method and apparatus which can perform a switchover of all of the main lines without requiring much construction cost, a transmission apparatus sets, upon frame transmission or reception, combinations of a plurality of main lines with virtual paths established so as to include at least a part of a bandwidth of the main lines in one or more protection lines as redundant configurations. Upon frame transmission, the apparatus copies frames received in the main lines, assigns identifiers of the redundant configurations to the copied frames, and transmits the copied frames to the virtual paths of the redundant configurations. Upon frame reception, the apparatus determines whether the main lines or the virtual paths forming the redundant configurations are valid, deletes the identifiers of the redundant configurations assigned to frames received from the protection lines, and determines whether the frames from which the identifiers have been deleted should be respectively discarded or transferred depending on validity or invalidity of the main lines.
    • 在不需要太多构造成本的情况下,能够进行所有主线路的切换的数据发送方法和装置中,发送装置在帧发送或接收时,将多条主线路与虚拟路径的组合设定为包括 作为冗余配置的一个或多个保护线路中的主线路的至少一部分带宽。 在帧传输时,设备复制在主线路中接收的帧,将冗余配置的标识符分配给复制的帧,并将复制的帧发送到冗余配置的虚拟路径。 在帧接收时,设备确定构成冗余配置的主线路或虚拟路径是否有效,删除分配给从保护线路接收的帧的冗余配置的标识符,并确定标识符已被删除的帧 应根据主线的有效性或无效性分别丢弃或转移。
    • 74. 发明授权
    • Transfer system
    • 转移系统
    • US07633938B2
    • 2009-12-15
    • US11080971
    • 2005-03-15
    • Hiroshi KinoshitaColin Peters
    • Hiroshi KinoshitaColin Peters
    • H04L12/26
    • H04Q11/0062H04L45/00H04L45/50H04Q11/0071H04Q2011/0073H04Q2011/0088
    • A transfer system for bundle transfer, in which the amount of route information and the number of times advertisement is performed are reduced, and maintenance and management are made to be highly efficient to implement improved transfer quality. A path setting section specifies a path between nodes for a receiving side as a bundled link which can have a plurality of paths tied up. A transmission-side route-information advertisement section advertises route information in a network when recognizing that the path has been established. A path recognition section recognizes the path and sets the path as a bundled link. A receiving-side route-information advertisement section advertises the route information in the network when recognizing that the path has been established.
    • 用于捆绑传送的传送系统减少了路由信息的数量和广告的次数,并且维护和管理被高效地实现改进的传送质量。 路径设置部分将接收方的节点之间的路径指定为能够将多个路径绑定的捆绑链路。 当识别出路径已被建立时,发送侧路由信息广告部在网络中通告路由信息。 路径识别部分识别路径并将路径设置为捆绑链接。 接收侧路由信息广告部在识别出路径已建立时,通告网络中的路由信息​​。
    • 75. 发明授权
    • Fluorine-containing photocurable composition
    • 含氟可光固化组合物
    • US07592405B2
    • 2009-09-22
    • US10579773
    • 2004-11-18
    • Tsuneyuki OtaguroHiroshi KinoshitaKiyofumi TakanoHirofumi Yamaguchi
    • Tsuneyuki OtaguroHiroshi KinoshitaKiyofumi TakanoHirofumi Yamaguchi
    • C08F214/18
    • C09D133/16C08F20/22C08F20/28
    • A fluorine-containing photocurable composition containing a (meth)acrylate having a fluorinated alkyl group (A) and a photopolymerization initiator (B). The (meth)acrylate (A) includes a group represented by general formula (1) and two or more (meth)acryloyl groups, and a fluorine atom content in one molecule of the acrylate is 25% by weight or more, and molecular weight of the (meth)acrylate is 500 to 4000 (in the general formula (1), R represents a hydrogen atom or alkyl group having 1 to 4 carbon atoms; X represents an alkylene chain, which may have a hetero atom, or a connecting group represented by the following general formula (2); and Rf represents a fluorinated alkyl group) (in the formula (2), Y represents an oxygen atom or a sulfur atom, m and n are an integer of 1 to 4 which may be the same as or different from each other; and Rf1 is a fluorinated alkyl group).
    • 含有具有氟化烷基(A)的(甲基)丙烯酸酯和光聚合引发剂(B)的含氟光固化性组合物。 (甲基)丙烯酸酯(A)包括由通式(1)表示的基团和两个以上(甲基)丙烯酰基,一分子中丙烯酸酯的氟原子含量为25重量%以上,分子量 的(甲基)丙烯酸酯为500〜4000(在通式(1)中,R表示氢原子或碳原子数1〜4的烷基,X表示可具有杂原子的亚烷基链, (2)表示的基团,Rf表示氟代烷基)(式(2)中,Y表示氧原子或硫原子,m表示1〜4的整数,可以是 相同或不同; Rf1为氟化烷基)。
    • 77. 发明授权
    • MAC address learning apparatus
    • MAC地址学习装置
    • US07400634B2
    • 2008-07-15
    • US11038282
    • 2005-01-21
    • Atsuko HigashitaniguchiHiroshi KinoshitaSatsuki Norimatsu
    • Atsuko HigashitaniguchiHiroshi KinoshitaSatsuki Norimatsu
    • H04L12/56
    • H04L41/12
    • 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.
    • 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。