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    • 2. 发明授权
    • Detour path determination method
    • 迂回路径确定方法
    • US6084882A
    • 2000-07-04
    • US406783
    • 1995-03-20
    • Takao OguraShigeo AmemiyaKoji TezukaTakafumi Chujo
    • Takao OguraShigeo AmemiyaKoji TezukaTakafumi Chujo
    • H04L12/707H04L12/709H04L12/751H04L29/14H04L12/12
    • H04L45/28H04L45/00H04L45/10H04L45/22
    • A detour path determination method wherein each node on a determined detour path stores in advance first and second nodes upstream of each node as well as an identifier(s) of a packet directional path(s); a number of an identifier(s) of a packet directional path(s) required for switching in each link extending from a downstream node one node downstream of each node on the detour path are set for respective nodes on the detour path beginning from the terminal node upstream; the identifier(s) of the packet directional path(s) set as above, and an identifier(s) of a corresponding packet directional path(s) at a start node of the detour path, are sent to a node one node upstream of the above each node; the start node updates a identification data table at the node, by an identifier(s) of a packet directional path(s) set downstream of the start node based on the corresponding identifier(s) of packet directional path(s) at a start node of the detour path, when the start node receives the above identifier(s) (FIG. 1).
    • 迂回路径确定方法,其中确定的迂回路径上的每个节点预先存储每个节点上游的第一和第二节点以及分组定向路径的标识符; 在从终端开始的迂回路径上的各个节点设置从多个路由中的每个节点的下游节点向下游节点延伸的每个链路中切换所需的分组方向性路径的一个或多个标识符, 节点上游 如上所述设置的分组定向路径的标识符以及在迂回路径的起始节点处的相应分组定向路径的标识符被发送到节点的上游一个节点 上述每个节点; 起始节点基于开始时的分组方向路径的相应标识符,在开始节点的下游设置的分组定向路径的标识符来更新节点处的标识数据表。 当起始节点接收到上述标识符(图1)时,迂回路径的节点。
    • 3. 发明授权
    • Distributed control of telecommunication network for setting up an
alternative communication path
    • 电信网络的分布式控制,用于建立替代通信路径
    • US5548639A
    • 1996-08-20
    • US965939
    • 1992-10-22
    • Takao OguraShigeo AmemiyaKoji TezukaTakafumi Chujo
    • Takao OguraShigeo AmemiyaKoji TezukaTakafumi Chujo
    • H04J3/00H04L12/70H04L12/707H04L12/723H04L12/801H04L12/911H04Q3/00H04Q11/04H04M7/00
    • H04L45/00H04L45/22H04Q11/0478H04Q3/0016H04Q3/0079H04L2012/5619H04L2012/5627
    • A method for restoring a communication failure in a network comprises the steps of providing a predetermined order for selection of the links included in the network, searching for an alternative communication path upon a failure in communication occurring in the network, producing, at a first arbitrary node included in the alternative communication path, a first path setup message containing at least information about the number of the paths to be selected in a first link extending from the first node for setting up the alternative communication path, and an identification code of the path that is to be selected at first in the first link for establishing the alternative communication path, transmitting the first path setup message to a second node also included in the alternative communication path and connected to the first node by a second link, for affecting a setup of the connection therein. The second node selects paths with the number specified by the path setup message according to said predetermined order of selection and affects a connection to the paths in the first link according to the order of selection.
    • 一种用于恢复网络中的通信故障的方法包括以下步骤:提供用于选择网络中包括的链路的预定顺序,在网络中发生通信故障时搜索备选通信路径,以第一任意 包括在备选通信路径中的第一路由的第一路径建立消息,至少包含关于从用于建立替代通信路径的第一节点延伸的第一链路中要选择的路径的数量的信息的第一路径建立消息,以及路径的识别码 首先要在第一链路中选择用于建立替代通信路径,将第一路径建立消息发送到也包括在替代通信路径中并通过第二链路连接到第一节点的第二节点,用于影响设置 的连接。 第二节点根据所述预定的选择顺序来选择具有由路径建立消息指定的号码的路径,并根据选择顺序影响与第一链路中的路径的连接。
    • 5. 发明授权
    • Packet directional path identifier transfer system
    • 分组方向路径标识符传输系统
    • US5555542A
    • 1996-09-10
    • US583962
    • 1996-01-11
    • Takao OguraShigeo AmemiyaKoji TezukaTakafumi Chujo
    • Takao OguraShigeo AmemiyaKoji TezukaTakafumi Chujo
    • H04L12/701H04L12/56
    • H04L45/00
    • A packet directional path identifier transfer system contains on the transmission side thereof, a means 2 of converting packet directional path identifier data into bit map information in which an address of each bit corresponds to a packet directional path identifier. The system contains on the reception side thereof, a means 5 for inversely converting the bit map information of the packet directional path identifier data to the packet directional path identifier data. Otherwise, the system further contains on the transmission side thereof, means 8 and 10 for determining the top and bottom values of the packet directional path identifier data to be transmitted, and a means 9 for converting the packet directional path identifier data between the top and bottom values into bit map information, and at the reception side thereof, a means 13 for inversely converting into the initial packet directional path identifier data the bit map information of the packet directional path identifier between the top and bottom values. Further, the top value of the identifier(s) of the newly-set packet directional path(s) determined from the non-used packet directional path identifier(s) in the outgoing packet directional path of the transmission-side node and the number of the newly-set packet directional path identifier(s) are transmitted, and a reference is made to the incoming packet directional path identifier table at the reception-side node to recognize the newly-set packet directional path(s) based on the information received. (FIGS. 1 and 2.)
    • 分组定向路径标识符传送系统在其发送侧包含将分组方向路径标识符数据转换为比特映射信息的装置2,其中每个比特的地址对应于分组方向路径标识符。 该系统在其接收侧包含用于将分组方向路径标识符数据的位图信息逆向转换为分组方向路径标识符数据的装置5。 否则,该系统在其发送侧还包含用于确定要发送的分组有向路径标识符数据的上限值和下限值的装置8和10,以及用于将分组方向路径标识符数据在顶部和 底部值作为位图信息,并且在其接收侧具有用于将初始分组方向路径标识符数据逆向转换为顶部和底部值之间的分组方向路径标识符的位图信息的装置13。 此外,根据发送侧节点的输出分组定向路径中的未使用的分组有向路径标识符确定的新设定的分组定向路径的标识符的顶值, 发送新设定的分组方向路径标识符,并且参考在接收侧节点处的输入分组定向路径标识符表,以基于该信息来识别新设置的分组定向路径 收到了 (图1和图2)。
    • 10. 发明授权
    • Inter-network connecting system
    • 互联网连接系统
    • US5185741A
    • 1993-02-09
    • US640437
    • 1991-01-30
    • Kazuo IguchiHiroshi TakeoShigeo AmemiyaKoji Tezuka
    • Kazuo IguchiHiroshi TakeoShigeo AmemiyaKoji Tezuka
    • H04M3/24H04Q11/04
    • H04Q11/0428H04M3/245H04Q11/0471
    • An inter-network connecting system comprising a main network having an exchange function and a subnetwork having no exchange function, to improve the expandability, economy, and efficiency of the subnetwork. When an extension line communication which is a communication in the subnetwork is to be carried out, a call setting processing processor in the main network gives a calling terminal a first special signal so as to operate lookback means in a connection control unit in the subnetwork to set a physical communication paths for an extension line between terminals in the subnetwork; and when an outer line communication which is a communication between the main network and a terminal in the subnetwork is to be carried out, the call setting processing processor gives a calling terminal a second signal so as to stop the operation of the loopback means in the connection control unit to set a physical communication path for an outer line between the exchange and the terminal in the subnetwork.
    • PCT No.PCT / JP90 / 00706 Sec。 371日期1991年1月30日 102(e)1991年1月30日PCT PCT 1990年5月30日PCT公布。 出版物WO90 / 15510 日期1990年12月13日。一种网络连接系统,包括具有交换功能的主网络和不具有交换功能的子网,以提高子网的可扩展性,经济性和效率。 当要执行作为子网中的通信的分机线通信时,主网络中的呼叫设置处理处理器向主叫终端提供第一特殊信号,以便在子网中的连接控制单元中操作回溯装置 为子网中终端之间的延伸线设置物理通信路径; 并且当要执行作为主网络和子网中的终端之间的通信的外线通信时,呼叫设置处理处理器向主叫终端提供第二信号,以便停止在该网络中的环回装置的操作 连接控制单元,用于设置子网中交换机和终端之间的外线的物理通信路径。