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    • 2. 发明授权
    • Boundary apparatus and method for establishing the network connection using a resource reserving function
    • 使用资源预留功能建立网络连接的边界装置和方法
    • US06760774B1
    • 2004-07-06
    • US09489822
    • 2000-01-24
    • Toshio SoumiyaKenya TakashimaKoji NakamichiNaotoshi WatanabeYutaka Ezaki
    • Toshio SoumiyaKenya TakashimaKoji NakamichiNaotoshi WatanabeYutaka Ezaki
    • G06F1516
    • H04L47/805H04L47/20H04L47/2408H04L47/32H04L47/70H04L47/724H04L47/806H04L47/828H04L2012/563H04L2012/5632
    • A boundary apparatus on the transmission side provided on the boundary between an IP network accommodating a transmitting terminal and an ATM network separates the requests for bandwidth which are received from receiving terminals via boundary apparatuses on the reception side into a plurality of groups on the basis of a required bandwidth, establishes a point-multipoint connection between the boundary apparatus on the transmission side and each of the boundary apparatuses on the reception side for each group, and transmits the data from the transmitting terminal to each of the receiving terminals via the connection. When there is a change in the number of the requests for bandwidth due to the delivery of a new request for bandwidth or the interruption of a flow of requests, the boundary apparatus on the transmission side calculates the effective bandwidth allocation ratio of the group in which there is a change in the number of the requests for bandwidth, and if the effective bandwidth allocation ratio is not more than a preset value, the boundary apparatus separates the requests belonging to the group into two groups, and establishes a connection for each group.
    • 设置在容纳发送终端的IP网络与ATM网络之间的边界上的发送侧的边界装置将接收侧的边界装置的从接收端子接收到的带宽请求,基于 所需的带宽,在发送侧的边界装置和每个组的接收侧的边界装置之间建立点对多点连接,并且经由连接将数据从发送终端发送到每个接收终端。 当由于传送新的带宽请求或请求流中断而导致带宽请求数量发生变化时,发送侧的边界设备计算出其中的有效带宽分配比率,其中, 带宽请求数量有变化,如果有效带宽分配比不大于预设值,则边界设备将属于该组的请求分成两组,并建立每个组的连接。
    • 3. 发明授权
    • Method and apparatus for selection of paths on a communication network
    • 用于选择通信网络上的路径的方法和装置
    • US06859842B1
    • 2005-02-22
    • US09709230
    • 2000-11-09
    • Koji NakamichiYutaka EzakiToshio SoumiyaKenya Takashima
    • Koji NakamichiYutaka EzakiToshio SoumiyaKenya Takashima
    • H04M3/00H04L12/701H04L12/707H04L12/803H04L12/851G06F15/173
    • H04L45/00
    • A method and apparatus for selecting paths to route incoming traffic through a data communication network, which is capable of effectively dispersing the traffic load to the selected paths on the network and effectively optimizing the use of network resources. In a communication network, a plurality of label switched paths between an ingress node and an egress node are provided. Incoming traffic at the ingress node is labeled and delivered through the network to the egress node. In a method and apparatus for selecting paths to route the incoming traffic through the network, a plurality of forwarding equivalent class elements (FEC) of the incoming traffic at the ingress node are allocated for the plurality of label switched paths. The labeled traffic is delivered on the plurality of label switched paths on an FEC-element basis so as to route the labeled traffic through the network to the egress node. The traffic load on the respective label switched paths can be effectively dispersed and the sequence of data packets, sent by the same terminal, may be maintained.
    • 一种用于选择通过数据通信网络路由输入流量的路径的方法和装置,其能够有效地将业务负载分散到网络上的所选路径并且有效地优化网络资源的使用。 在通信网络中,提供入口节点和出口节点之间的多个标签交换路径。 在入口节点处的入站流量被标记并通过网络传送到出口节点。 在用于选择通过网络路由输入业务的路径的方法和装置中,为多个标签交换路径分配入口节点处的入局业务的多个转发等价类元素(FEC)。 标记的业务在FEC元素的基础上在多个标签交换路径上传送,以便将标记的业务通过网络路由到出口节点。 可以有效地分散各个标签交换路径上的业务负载,并且可以维护由同一终端发送的数据分组的序列。
    • 5. 发明申请
    • Laser Beam Path Length Difference Detector, Laser Phase Controller, and Coherent Optical Coupler
    • 激光束路径长度差分检测器,激光相位控制器和相干光耦合器
    • US20080031292A1
    • 2008-02-07
    • US11631308
    • 2004-09-13
    • Jiro SuzukiYoshihito HiranoYutaka EzakiYasushi Horiuchi
    • Jiro SuzukiYoshihito HiranoYutaka EzakiYasushi Horiuchi
    • H01S3/13G01B9/02G01J9/00G01M11/00
    • H01S3/2383G01J9/0246H01S3/005
    • Provided are a small-sized, low-cost, and easy-to-use laser optical path length difference detecting device, a laser optical path length difference detecting device, and a coherent optical coupling device. The laser optical path length difference detecting device detects an optical path length difference between propagation paths of a first laser beam (1) and a second laser beam (2), which are mutually coherent when the beams are propagated through two arbitrary optical paths of a plurality of laser beam optical paths. The laser optical path length difference detecting device is provided with an optical path length difference variable means (4) for changing the optical path length difference between the first laser beam (1) and the second laser beam (2), a wavefront inclination generating means (5) for inclining a wavefront of at least one of the first laser beam (1) and the second laser beam (2), and a two-dimensional detector (6) for detecting the interference light intensity distribution of the first laser beam (1) and the second laser beam (2) which have passed through the wavefront inclination generating means.
    • 提供了一种小尺寸,低成本,易于使用的激光光路长度差检测装置,激光光路长度差检测装置和相干光耦合装置。 激光光路长度差检测装置检测当第一激光束(1)和第二激光束(2)的传播路径之间的光路长度差异,当光束通过两 多个激光束光路。 激光光路长度差检测装置设置有用于改变第一激光束(1)和第二激光束(2)之间的光程长度差的光路长度差可变装置(4),波前倾斜产生装置 (5),用于倾斜第一激光束(1)和第二激光束(2)中的至少一个的波前;以及二维检测器(6),用于检测第一激光束的干涉光强度分布 1)和通过波前倾斜产生装置的第二激光束(2)。
    • 10. 发明申请
    • Computer-readable recording medium recording a service control program, and service control device and method
    • 记录服务控制程序的计算机可读记录介质,以及服务控制装置和方法
    • US20060271934A1
    • 2006-11-30
    • US11369911
    • 2006-03-08
    • Yutaka Ezaki
    • Yutaka Ezaki
    • G06F9/46
    • H04L67/16G06F9/468H04L63/102H04L67/22H04L67/306
    • A computer-readable recording medium recording a service control program whereby providable services can be determined by using highly secure information. A device detector collects, via a controller, service profiles of devices connected to a network, and also acquires identification information of the controller. A usage condition acquisition unit acquires, from a management database, usage conditions for using nearby devices. An available service decision unit determines available services which can be provided by one or more devices including those on the network and which meet the usage conditions. A device controller remotely controls the device which is used for providing an available service among those determined by the available service decision unit, to provide the available service.
    • 记录服务控制程序的计算机可读记录介质,通过使用高度安全的信息可以确定可提供的服务。 设备检测器通过控制器收集连接到网络的设备的服务简档,并且还获取控制器的标识信息。 使用条件获取单元从管理数据库获取使用附近设备的使用条件。 可用服务决定单元确定可由一个或多个设备提供的可用服务,包括那些在网络上并且满足使用条件的设备。 设备控制器远程控制用于在由可用服务决策单元确定的服务之间提供可用服务的设备,以提供可用的服务。