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    • 2. 发明申请
    • COMMUNICATION SYSTEM AND COMMUNICATION METHOD
    • 通信系统和通信方法
    • US20110176584A1
    • 2011-07-21
    • US13007016
    • 2011-01-14
    • Shunsuke KIKUCHIYuji Imai
    • Shunsuke KIKUCHIYuji Imai
    • H04B3/36
    • H04L12/4633H04L45/22H04L45/28H04L2212/00
    • A communication system including: a first device that includes first and second units and a first encapsulation unit encapsulating data; a second device that includes a third unit communicating data with the second unit, a fourth unit, and a second encapsulation unit encapsulating data; a third device that includes a fifth unit communicating data with the first or third unit, a sixth unit, and a third encapsulation unit encapsulating data; and a fourth device that includes a seventh unit communicating data with the first or third unit, an eighth unit communicating data with the fifth unit, and a fourth encapsulation unit encapsulating data; wherein at least two of the first to fourth devices include control units that control the units that the at least two of the first to fourth devices have, so as not to transfer received data to other devices.
    • 一种通信系统,包括:包括第一和第二单元的第一设备和封装数据的第一封装单元; 第二装置,包括与第二单元通信数据的第三单元,第四单元和封装数据的第二封装单元; 第三装置,包括与第一或第三单元通信数据的第五单元,第六单元和封装数据的第三封装单元; 以及第四装置,包括与第一或第三单元通信数据的第七单元,与第五单元通信数据的第八单元和封装数据的第四封装单元; 其中所述第一至第四设备中的至少两个设备包括控制所述第一至第四设备中的至少两个设备具有的单元的控制单元,以便不将接收的数据传送到其他设备。
    • 3. 发明申请
    • APPARATUS AND METHOD FOR GENERATING TOPOLOGY TREE
    • 用于生成拓扑树的装置和方法
    • US20110170402A1
    • 2011-07-14
    • US12984355
    • 2011-01-04
    • Shunsuke KIKUCHI
    • Shunsuke KIKUCHI
    • H04L12/26
    • H04L43/0829H04L41/0213H04L41/12H04L41/145H04L43/0894
    • From an observed packet, the hop number, which is the number of nodes that the packet has passed through, and a bottleneck bandwidth, which is a bottleneck for transmitting the packet, are determined so as to detect loss failures. Thereby, the subnet that transmitted the observed packet is located as a node in a topology tree on the basis of the determined hop count and bottleneck bandwidth. When a loss failure, by which the packet is lost, is detected, subnets that are inappropriately arranged are extracted from the arrangement in the topology tree of the loss-failure-detected subnet, and the arrangement of the extracted subnets is modified in order to resolve the inappropriateness.
    • 从观察到的分组中,确定分组已经通过的节点数量的跳数和作为传输分组的瓶颈的瓶颈带宽,以便检测丢失失败。 由此,基于确定的跳数和瓶颈带宽,发送观察到的分组的子网位于拓扑树中作为节点。 当检测到分组丢失的丢失失败时,从丢失失败检测到的子网的拓扑树中的布置中提取不适当地布置的子网,并且修改提取的子网的布置,以便 解决不适当的问题。
    • 4. 发明申请
    • Load distribution system
    • 负荷分配系统
    • US20050195834A1
    • 2005-09-08
    • US11100208
    • 2005-04-06
    • Shunsuke Kikuchi
    • Shunsuke Kikuchi
    • H04L12/56
    • H04L47/125H04L67/1012
    • A load distribution system performing load measurement and load distribution control efficiently at a high speed and capable of improving the quality of communication and reliability. A transmission byte count acquisition block acquires the number of transmission bytes on a destination address basis from a frame. A transmission byte count storage block stores the accumulated number of transmission bytes in a transmission byte count table. A transmission byte count report block transfers the number of transmission bytes stored in the transmission byte count table, at regular intervals. An overloaded-unit detection block compares the transferred number of transmission bytes and the number of transmission bytes that can be received by a load distribution unit and detects any overloaded load distribution unit. An assignment adjustment block adjusts the traffic assignment by reducing the volume of an assignment to any load distribution unit determined to be overloaded.
    • 一种负载分配系统,能够高效率地进行负载测量和负载分配控制,能够提高通信质量和可靠性。 传输字节计数获取块从帧获取目的地地址的传输字节数。 传输字节计数存储块将传输字节的累计数量存储在传输字节计数表中。 传输字节计数报告块以规则的间隔传送存储在传输字节计数表中的传输字节数。 过载单元检测块将传送的传输字节数与可由负载分配单元接收的传输字节数进行比较,并检测任何过载的负载分配单元。 分配调整块通过将分配的体积减小到确定为过载的任何负载分配单元来调整流量分配。
    • 6. 发明授权
    • Abnormality locating method and apparatus, and computer-readable storage medium
    • 异常定位方法和装置,以及计算机可读存储介质
    • US08542601B2
    • 2013-09-24
    • US12795493
    • 2010-06-07
    • Takeshi YasuieYuji NomuraTetsuya NishiShunsuke KikuchiTaichi Sugiyama
    • Takeshi YasuieYuji NomuraTetsuya NishiShunsuke KikuchiTaichi Sugiyama
    • G06F11/00
    • H04L41/0677H04L41/12
    • An abnormality locating apparatus locates an abnormal location in a network. An abnormal location judging part judges a normality or abnormality of a link based on a normality or abnormality of an observation flow, by acquiring information of links through which each observation flow passes, from a network route information storage that stores passing route information of observation flows passing through the links. A diagnosis accuracy judging part judges that an accuracy of judging the normality or abnormality of a connecting link connected to a first node deteriorates, by acquiring links connected to each relay node as connecting links from a relay node connecting link information storage that stores connecting link information of each relay node, and judging that a relay node having all connecting links thereof that are abnormal is the first node having all observation flows passing therethrough that are abnormal.
    • 异常定位装置将网络中的异常位置定位。 通过从存储观察流的路径信息的网络路径信息存储器中获取每个观察流通过的链路的信息,通过观察流的正常性或异常来判断链路的正常性或异常,异常位置判断部 通过链接。 诊断精度判定部判断通过连接到每个中继节点的连接作为来自连接链接信息存储器的连接链路来连接到第一节点的连接链路的正常或异常判断的准确性,连接链路信息存储器存储连接链接信息 并且判断其具有异常的所有连接链路的中继节点是具有异常的所有通过其的观察流的第一节点。
    • 7. 发明授权
    • Delay time measurement apparatus, storage medium storing delay time measurement program and network system
    • 延迟时间测量装置,存储介质存储延迟时间测量程序和网络系统
    • US08355341B2
    • 2013-01-15
    • US12888591
    • 2010-09-23
    • Taichi SugiyamaYuji NomuraTakeshi YasuieShunsuke Kikuchi
    • Taichi SugiyamaYuji NomuraTakeshi YasuieShunsuke Kikuchi
    • G06F11/00
    • H04L41/5035H04L43/0852
    • A CPU executes a process including determining a core node among plural relay nodes on a basis of route information, acquiring a first and a second packets flowing between a server and a terminal apparatus, the second packet being transmitted on a basis of the first packet, calculating a first delay time on a basis of the first and the second packets, the first delay time relating to packet transmission between the server and the terminal apparatus, transmitting a third packet to the core node, receiving a response to the third packet from the core node, calculating a second delay time on a basis of the third packet and the response, the second delay time being a delay time of the core node, and calculating a third delay time being a delay time of an end node on a basis of the first and the second delay times.
    • CPU执行包括基于路由信息确定多个中继节点中的核心节点的处理,获取在服务器和终端装置之间流动的第一和第二分组,基于第一分组发送的第二分组, 基于第一和第二分组计算第一延迟时间,与服务器和终端装置之间的分组传输相关的第一延迟时间,向核心节点发送第三分组,从第一分组接收对第三分组的响应 核心节点,基于第三分组计算第二延迟时间和响应,第二延迟时间是核心节点的延迟时间,并且基于以下步骤计算作为终止节点的延迟时间的第三延迟时间: 第一和第二个延迟时间。
    • 8. 发明授权
    • Management device to investigate path states of network and network system
    • 管理设备,调查网络和网络系统的路径状态
    • US08254388B2
    • 2012-08-28
    • US11585285
    • 2006-10-24
    • Shunsuke KikuchiYuji Nomura
    • Shunsuke KikuchiYuji Nomura
    • H04L12/56
    • H04L43/0811H04L43/12H04L45/00
    • A packet reception portion receives packets of user traffic transferred on the network. The received packets are transferred to an address extraction portion via a distribution portion, and the transmission source address and destination address are extracted. Based on these addresses, a packet generation portion generates probe packets the transfer destination of which is the address destination. A packet transmission portion transmits the probe packets to the network. The transmitted probe packets are received as probe response packets by the packet reception portion. The probe response packets received by the packet reception portion are transferred to a result storage portion via the distribution portion. The result storage portion stores transmission source addresses included in the probe packets in a result storage DB.
    • 分组接收部分接收在网络上传送的用户业务的分组。 接收的分组经由分配部分被传送到地址提取部分,并且提取发送源地址和目的地地址。 基于这些地址,分组产生部分生成其传送目的地作为地址目的地的探测分组。 分组传输部分将探测分组发送到网络。 发送的探测分组由分组接收部分作为探测响应分组被接收。 由分组接收部分接收的探测响应分组经由分配部分传送到结果存储部分。 结果存储部将包含在探测包中的发送源地址存储在结果存储DB中。