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    • 5. 发明申请
    • VIRTUAL NETWORK CONTROL PROGRAM, VIRTUAL NETWORK CONTROL METHOD AND INFORMATION PROCESSING APPARATUS
    • 虚拟网络控制程序,虚拟网络控制方法和信息处理设备
    • US20120278807A1
    • 2012-11-01
    • US13544317
    • 2012-07-09
    • Yukihiro Nakagawa
    • Yukihiro Nakagawa
    • G06F9/455G06F15/16
    • G06F9/4856G06F9/455G06F2009/4557G06F2009/45575H04L45/00H04L47/10
    • A virtual network control program includes allowing a physical port of a destination server device, which is a destination of a virtual machine to be transferred by migration, to use a virtual network used by the virtual machine to be transferred when the physical port of the destination server device does not belong to the virtual network; determining whether or not the virtual network, which has been used by the virtual machine in a source server device, is used by another virtual machine running on the source server device when the virtual machine to be transferred has been transferred onto the destination server device; and inhibiting, when it is determined that the another virtual machine does not use the virtual network, that a physical port of the source server device uses the virtual network which has been used by the virtual machine to be transferred.
    • 虚拟网络控制程序包括允许通过迁移来传送虚拟机的目的地的目的地服务器设备的物理端口,以使用虚拟机使用的虚拟网络,以在目的地的物理端口 服务器设备不属于虚拟网络; 确定当要传送的虚拟机已经被传送到目的地服务器设备上时,由源服务器设备中的虚拟机使用的虚拟网络是否由在源服务器设备上运行的另一个虚拟机使用; 并且当确定另一个虚拟机不使用虚拟网络时,禁止源服务器设备的物理端口使用虚拟机已经使用的虚拟网络进行传输。
    • 6. 发明申请
    • SWITCH
    • 开关
    • US20100135307A1
    • 2010-06-03
    • US12625726
    • 2009-11-25
    • Yukihiro Nakagawa
    • Yukihiro Nakagawa
    • H04L12/28
    • H04L12/467H04L49/354
    • A switch which includes a plurality of ports, each being assigned to any of VLAN groups, and outputs a packet received at any of the ports, the switch include: recording means in which partition information and an address table are recorded, the partition information indicating which of extended VLAN groups into which the ports are further logically partitioned, and the address table containing an entry in which a destination address, an output port, a VLAN group, and an extended VLAN group are associated with each other; acquisition means for acquiring a source address and acquiring group information of a VLAN; identification means for identifying group information of an extended VLAN; and registration means for registering in the address table the source address acquired by the acquisition means as the destination address, the port, the group information of the VLAN, and group information of the extended VLAN group.
    • 一种交换机,包括多个端口,每个端口分配给VLAN组中的任一个,并且输出在任何一个端口接收的分组,该交换机包括:记录分区信息和地址表的记录装置,指示 其中哪些扩展VLAN组进一步逻辑分区,并且包含目的地址,输出端口,VLAN组和扩展VLAN组相关联的条目的地址表; 获取装置,用于获取源地址并获取VLAN的组信息; 用于识别扩展VLAN的组信息的识别装置; 以及注册装置,用于在所述地址表中注册由所述获取装置获取的源地址作为所述目的地址,所述端口,所述VLAN的组信息和所述扩展VLAN组的组信息。
    • 7. 发明授权
    • Deficit round-robin scheduling in a high-speed switching environment
    • 在高速交换环境中的赤字循环调度
    • US07349417B2
    • 2008-03-25
    • US10359838
    • 2003-02-07
    • Yukihiro Nakagawa
    • Yukihiro Nakagawa
    • H04L12/56
    • H04L47/15H04L47/50H04L47/527H04L47/6225
    • A system for scheduling in a high-speed switching environment includes multiple output queues, multiple counters that each correspond to one of the output queues, and an output port. The output port can read packets from the output queues in a series of rounds. In each of the rounds, the output port can access at least one of the output queues, increment the counter corresponding to the output queue by a first amount, determine whether the counter corresponding to the output queue is at or above a particular level, and, if the counter is at or above the particular level, read one or more packets from the output queue that each have a length and decrement the counter by a second amount corresponding to the one or more lengths of the one or more read packets.
    • 用于在高速交换环境中进行调度的系统包括多个输出队列,每个对应于输出队列之一的多个计数器和输出端口。 输出端口可以从一系列循环中读取输出队列中的数据包。 在每一轮中,输出端口可以访问至少一个输出队列,将对应于输出队列的计数器增加第一个量,确定对应于输出队列的计数器是否处于或高于特定级别;以及 如果计数器处于或高于特定级别,则从输出队列中读取一个或多个分组,每个分组具有一个长度,并将该计数器减去与一个或多个读取分组的一个或多个长度对应的第二量。
    • 9. 发明申请
    • Fixing structure of tail pipe of exhaust pipe
    • 排气管尾管固定结构
    • US20050103565A1
    • 2005-05-19
    • US10824348
    • 2004-04-15
    • Yukihiro Nakagawa
    • Yukihiro Nakagawa
    • F01N13/20F01N7/08
    • F01N13/20F01N13/082
    • A clamping member (2) for clamping a periphery of a rear-end open portion of an exhaust pipe (3) is accommodated in a front-end open portion (11) of a tail pipe (1). The clamping member (2) has a pair of plate parts (21, 22) disposed at right and left positions of the front-end open portion (11) and a bolt (4) for connecting the plate parts (21, 22) to each other by reducing an interval between the opposed plate parts enough to sandwich a periphery of the rear-end open portion (31) between the plate parts. A concave surface (21a, 22a) whose configuration conforms to that of a periphery of the rear-end open portion (31) inserted between the plate parts (21, 22) is formed on each of the plate parts (21, 22).
    • 用于夹紧排气管(3)的后端开口部分的周边的夹紧构件(2)容纳在尾管(1)的前端开口部分(11)中。 夹持构件(2)具有设置在前端开口部(11)的左右位置的一对板部(21,22)和用于将板部(21,22)连接到 通过减小相对的板部件之间的间隔足以将后端开口部分(31)的周边夹在板部件之间。 在每个板部件(21,22)上形成有与插入在板部件(21,22)之间的后端开口部(31)的周边相一致的构造的凹面(21a,22b) )。
    • 10. 发明授权
    • Caching mechanism for remote read-only data in a cache coherent non-uniform memory access (CCNUMA) architecture
    • 高速缓存一致性非均匀内存访问(CCNUMA)架构中的远程只读数据缓存机制
    • US06766360B1
    • 2004-07-20
    • US09616583
    • 2000-07-14
    • Patrick N. ConwayYukihiro NakagawaJung Rung Jiang
    • Patrick N. ConwayYukihiro NakagawaJung Rung Jiang
    • G06F15167
    • G06F12/0817G06F2212/2542
    • A computer network system for manipulating requests for shared data includes a plurality of groups and each group has a plurality of nodes and each node has a plurality of processors. The system further comprises a request outstanding buffer (ROB) for recording data requests, a remote access cache (RAC) for caching the results of prior memory requests which are remote to a requesting node, and a directory for recording a global state of a cache line in the system. The RAC supports only two states, Shared and Invalid, and caches only clean remote data. If the directory state is Modified/Exclusive, the line is indicated to not be in the RAC. The behavior of the RAC is described for two important cases: initial RAC does not have the line caches and initial RAC has the line cached. The requested data is supplied to the requesting node from the RAC when the RAC's line is cached and when the RAC's line is not cached, the requested data is supplied from the remote home node and the requested data is installed in the RAC. In the case when the data is not present in the RAC, the request to the remote home node is overlapped with the RAC access to minimize remote memory access latency.
    • 用于操纵对共享数据的请求的计算机网络系统包括多个组,并且每个组具有多个节点,并且每个节点具有多个处理器。 该系统还包括用于记录数据请求的请求未完成缓冲器(ROB),用于高速缓存对请求节点的先前存储器请求的结果的远程访问高速缓存(RAC)以及用于记录高速缓存的全局状态的目录 在系统中。 RAC仅支持两种状态:共享和无效,并且仅缓存干净的远程数据。 如果目录状态为Modified / Exclusive,则表示该行不在RAC中。 描述了RAC的行为有两个重要的情况:初始RAC没有行高速缓存,初始RAC已经被缓存。 当RAC的行被缓存时,请求的数据从RAC提供给请求节点,并且当RAC的行不被缓存时,请求的数据从远程主节点提供,并且请求的数据安装在RAC中。 在RAC中不存在数据的情况下,到远程主节点的请求与RAC访问重叠,以最小化远程内存访问延迟。