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1.发明授权Band allocation method and transmission system for transmitting variable-length packets 失效用于发送可变长度分组的频带分配方法和传输系统公开(公告)号：US06658009B1
公开(公告)日：2003-12-02
申请号：US09460917
申请日：1999-12-14
IPC分类号： H04L1256
CPC分类号： H04Q11/0066 , H04Q11/04 , H04Q2011/0064 , H04Q2011/0094 , H04Q2213/1301 , H04Q2213/13103 , H04Q2213/13174 , H04Q2213/13176 , H04Q2213/13204 , H04Q2213/13251 , H04Q2213/13349
摘要： In a system where a plurality of terminal units are connected to a network unit via an optical transmission line and packets are transmitted in units of cells according to polling information, polling request information including the number of variable-length packets stored in the buffer of each of the terminal unit, the number of cells composing each variable-length packet and the number of remaining cells of a packet being read is created, polling information corresponding to a time slot allocated according to the polling request information is transmitted from the shared band control unit of the network unit, and bands are allocated to the plurality of terminal units.
摘要翻译： 在多个终端单元通过光传输线路连接到网络单元并且根据轮询信息以小区为单位发送分组的系统中，轮询请求信息包括存储在每个缓冲器中的可变长度分组的数量 ，构成每个可变长度分组的单元数目和正在读取的分组的剩余单元数，从共享频带控制中发送与根据轮询请求信息分配的时隙相对应的轮询信息 单元，并且将频带分配给多个终端单元。
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2.发明授权System for monitoring ATM cross-connecting apparatus by inside-apparatus monitoring cell 失效用于通过内部装置监视单元监视ATM交叉连接装置的系统
公开(公告)号：US5257311A
公开(公告)日：1993-10-26
申请号：US876417
申请日：1992-04-30
申请人： Hidetoshi Naito , Masaaki Kawai , Hisako Watanabe , Yuji Takizawa , Kazuyuki Tajima , Haruo Yamashita
发明人： Hidetoshi Naito , Masaaki Kawai , Hisako Watanabe , Yuji Takizawa , Kazuyuki Tajima , Haruo Yamashita
CPC分类号： H04L49/3009 , H04L12/2697 , H04L43/50 , H04L49/3081 , H04L49/555 , H04Q11/0478 , H04L2012/5628 , H04L2012/5652 , H04L49/30
摘要： A system for monitoring an ATM cross-connecting apparatus by inputting a test cell through a path for a main signal into the ATM cross-connecting apparatus, and examining the cell after the cell passed through the ATM cross-connecting apparatus. An initial value of a PN sequence and the PN sequence generated based on the initial bit sequence is written in the test cell before inputting to the ATM cross-connecting apparatus. When examining the test cell, the initial bit sequence and the PN sequence are read from the cell, a PN sequence is generated based on the initial bit sequence, and the generated pseudo-noise sequence is then compared with the PN sequence read from the test cell to detect an error in the test cell. In addition, a bit pattern indicating a primitive polynomial to generate the PN sequence may be written in the test cell. In this case, the bit pattern is used for generating the PN sequence when examining the test cell. Further, the same VPI values may be written in both the header and the information field of the test cell before inputting the cell to the ATM cross-connecting apparatus, and the VPI value in the information field is compared with a VPI value in the header of the test cell when examining the test cell.
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公开(公告)号：US06741766B2
公开(公告)日：2004-05-25
申请号：US10079902
申请日：2002-02-22
申请人： Kazuyuki Tajima , Haruo Yamashita
发明人： Kazuyuki Tajima , Haruo Yamashita
IPC分类号： G02B626
CPC分类号： G02B6/3556 , G02B6/32 , G02B6/3512 , G02B6/43
摘要： An optical switch device improving a yield and compact and excellent in expandability of optical incoming/outgoing ports, comprised of: a plurality of planar switch modules arranged in the horizontal direction and stacked in the vertical direction; and a coupler switch module, arranged in the vertical direction along each one side of the planar switch module, for selectively coupling the plurality of optical paths formed on one planar switch module and a plurality of optical paths formed on another planar switch module.
摘要翻译： 提供光输入/输出端口的成品率和紧凑性和可扩展性优异的光开关装置，包括：沿水平方向布置并沿垂直方向堆叠的多个平面开关模块; 以及耦合器开关模块，沿着平面开关模块的每一侧在垂直方向上布置，用于选择性地耦合形成在一个平面开关模块上的多个光路和形成在另一个平面开关模块上的多个光路。
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4.发明授权
公开(公告)号：US5408476A
公开(公告)日：1995-04-18
申请号：US16871
申请日：1993-02-11
申请人： Masaaki Kawai , Masayoshi Sekido , Yuji Takizawa , Hidetoshi Naito , Satomi Ikeda , Kazuyuki Tajima , Haruo Yamashita , Hideo Tatsuno
发明人： Masaaki Kawai , Masayoshi Sekido , Yuji Takizawa , Hidetoshi Naito , Satomi Ikeda , Kazuyuki Tajima , Haruo Yamashita , Hideo Tatsuno
CPC分类号： H03M13/151 , H03M13/09
摘要： A 1-bit error correction circuit based on CRC calculation is provided with a syndrome generation circuit which determines input parallel data of m bits and which have been converted from n number of m-bit serial data. A 1-bit error detection circuit cyclically supplies a syndrome to a remainder calculation circuit and decodes remainder data obtained from this cyclic supply and detects 1-bit errors. A actual data reproduction circuit calculates the exclusive OR of output data of a predetermined register of a 1'st.about.n'th register of a syndrome generation circuit and data supplied to a predetermined register and obtains parallel data which is the actual data. A correction circuit which calculates a exclusive OR of parallel data obtained from a actual data reproduction circuit and 1-bit error data detected by the 1-bit error detection circuit and outputs corrected data.
摘要翻译： 提供了一种基于CRC计算的1位纠错电路，其具有确定m位的输入并行数据并且已经从n个m位串行数据转换的校正子生成电路。 1位错误检测电路循环地将余数提供给余数计算电路，并解码从该循环电源获得的余数数据，并检测1位错误。 实际数据再现电路计算校正子产生电路的第1个差分第n个寄存器的预定寄存器的输出数据与提供给预定寄存器的数据的异或，并获得作为实际数据的并行数据。 一种校正电路，其计算从实际数据再现电路获得的并行数据的异或和由1位错误检测电路检测的1位错误数据，并输出校正数据。
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公开(公告)号：US5265088A
公开(公告)日：1993-11-23
申请号：US889924
申请日：1992-06-02
申请人： Yuji Takigawa , Masaaki Kawai , Hidetoshi Naito , Hisako Watanabe , Kazuyuki Tajima , Haruo Yamashita
发明人： Yuji Takigawa , Masaaki Kawai , Hidetoshi Naito , Hisako Watanabe , Kazuyuki Tajima , Haruo Yamashita
CPC分类号： H04L49/107 , H04L49/3009 , H04L49/309 , H04L49/555 , H04Q11/0478 , H04L2012/561 , H04L2012/5625 , H04L49/30
摘要： A cross-connection apparatus for B-ISDN includes plural interface units, multiplexers, virtual path identifier (VPI) conversion tables, demultiplexers, and loop-back units and a switch unit. The interface unit has a reception port for receiving an ATM cell or inserting a monitor cell, and a transmission port for transferring the ATM cell or extracting the monitor cell; The multiplexer is operatively connected to corresponding interface unit for multiplexing the monitor cell; The VPI conversion tables is operatively connected to corresponding multiplexer for converting the VPI to change a transmission route of the monitor cell; The switch unit is operatively connected to the VPI conversion tables for switching the transmission route of the monitor cell based on the VPI; The demultiplexer is operatively connected to the switch unit for demultiplexing the monitor cell and transferring the monitor cell to the transmission port; The loop-back unit is operatively connected to corresponding interface unit for changing the transmission route so as to transfer the monitor cell to the same interface unit which the monitor cell is inserted, and as a result, the apparatus can be monitored by comparing the inserted monitor cell with the extracted monitor cell in the same interface unit.
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6.发明申请公开(公告)号：US20130003730A1
公开(公告)日：2013-01-03
申请号：US13469237
申请日：2012-05-11
IPC分类号： H04L12/56
CPC分类号： H04L45/12
摘要： A computer-readable recording medium having stored therein a program for causing a computer to execute a process includes accepting a start node and finish node that are both terminuses for a circuit that is to be accommodated in a transmission network that includes a plurality of transmission lines, selecting, from the plurality of transmission lines, a transmission line whose arrangement order of arranging a plurality of nodes on the transmission line in an order of an indicated direction determined for the transmission line is the same as an order of the plurality of nodes determined in accordance with a cost order of the shortest path from a node at a terminus of the circuit to the plurality of nodes, and searching for a path from the circuit's start node to the circuit's finish node via the selected transmission line in the order of the indicated direction.
摘要翻译： 其中存储有用于使计算机执行处理的程序的计算机可读记录介质包括接收起始节点和完成节点，所述起始节点和完成节点都是要容纳在包括多个传输线的传输网络中的电路的终端 从所述多条传输线中选择一条传输线，其传输线的排列顺序与所确定的所述多个节点的顺序相同，所述传输线按照所述传输线确定的指示方向的顺序排列在所述传输线上 根据从电路终点处的节点到多个节点的最短路径的成本顺序，并且经由所选择的传输线以从该电路的起始节点到电路的完成节点的顺序搜索路径 指示方向。
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7.发明授权Apparatus and method for finding a pair of disjoint paths in a communication network 有权在通信网络中找到一对不相交路径的装置和方法公开(公告)号：US08345538B2
公开(公告)日：2013-01-01
申请号：US12853336
申请日：2010-08-10
CPC分类号： H04Q11/0062 , H04J14/0267 , H04J14/0268 , H04L45/1283 , H04L45/1287 , H04L45/22 , H04Q2011/0073
摘要： There is provided topology information including connection states among nodes in a network, and port information including restriction conditions on connectivity among ports within a restricted node. A path search apparatus finds a first path having the minimum total link-cost among a plurality of paths. The topology information is changed so that the first path is not searched for as a path having the minimum total link-cost among the plurality of paths, and the port information is changed based on a port connectivity change rule. Then, the path search apparatus finds a second path different from the first path, based on the changed port information and the changed topology information, and reconfigures a pair of link-disjoint paths satisfying the restriction conditions imposed on the restricted node, by removing a link shared by both the first and second paths from the original topology information.
摘要翻译： 提供了包括网络中的节点之间的连接状态的拓扑信息，以及包括受限节点内的端口之间的连接性的限制条件的端口信息。 路径搜索装置在多个路径中找到具有最小总链路成本的第一路径。 改变拓扑信息，使得第一路径不被搜索为多个路径中具有最小总链路成本的路径，并且基于端口连接性改变规则改变端口信息。 然后，路径搜索装置基于改变的端口信息和改变的拓扑信息，找到与第一路径不同的第二路径，并且通过去除一个对应于限制节点的限制条件来重新配置满足限制条件的一对链路不相交路径 链路由原始拓扑信息由第一和第二路径共享。
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公开(公告)号：US20120079116A1
公开(公告)日：2012-03-29
申请号：US13218853
申请日：2011-08-26
IPC分类号： G06F15/16
CPC分类号： H04L45/12
摘要： There is provided an apparatus and method for allocating devices to a communication route. Network topology information and device information including a device-cost assigned to each of candidate-devices allowed to be allocated to a plurality of segments on the communication route are provided. An integer/linear programming problem is generated to obtain a feasible device-allocation, and an objective function for calculating an objective function value is defined. A sequence of feasible device-allocations are generated by sequentially generating a next feasible device-allocation from a current feasible device-allocation while improving an objective function value until the objective function value is not improved any more, and the last one of the sequence of feasible device-allocations is determined to be an optimum device-allocation. The next feasible device-allocation is generated from the current feasible device-allocation by replacing a basic candidate-device with an alternative candidate-device selected based on reduced-costs calculated for nonbasic candidate-devices.
摘要翻译： 提供了一种用于将设备分配到通信路由的装置和方法。 提供了网络拓扑信息和设备信息，包括分配给允许分配给通信路由上的多个段的每个候选设备的设备成本。 产生整数/线性规划问题以获得可行的设备分配，并且定义用于计算目标函数值的目标函数。 通过从当前的可行设备分配顺序地生成下一个可行的设备分配，同时改善目标函数值直到目标函数值不再被改善，并且最后的一个序列 可行设备分配被确定为最佳设备分配。 通过使用基于为非基本候选设备计算的降低成本而选择的替代候选设备替换基本候选设备，从当前可行的设备分配生成下一个可行设备分配。
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公开(公告)号：US08068732B2
公开(公告)日：2011-11-29
申请号：US12479206
申请日：2009-06-05
IPC分类号： H04B10/00
CPC分类号： H04Q11/0062 , H04L41/12 , H04L41/145 , H04Q2011/0086 , H04Q2011/009
摘要： A network design apparatus includes an information acquiring unit acquiring optical network information, a section dividing unit dividing an optical network into linear sections, a combination candidate determining unit determining candidates for combinations of various kinds of optical transmission equipment to be placed in each station in each of the linear sections, a noise amount upper limit determining unit determining an upper limit to the amount of noise allowed for each wavelength path, and an equipment placement unit solving an integer programming problem having an objective function that minimizes the cost of the optical transmission equipment and OEO regenerators, subject to the constraints that one optical transmission equipment combination is selected for each linear section and that the number of OEO regenerators necessary for each wavelength path is determined by the cumulative amount of noise of the wavelength path and the noise upper limit determined for the wavelength path.
摘要翻译： 一种网络设计装置，包括：获取光网络信息的信息获取单元，将光网络划分成线性区段的区段划分单元;组合候选确定单元，确定各放置在每个站中的各种光传输设备的组合的候选项 线性部分的噪声量上限确定单元，确定每个波长路径允许的噪声量的上限;以及解决具有使光传输设备的成本最小化的目标函数的整数规划问题的设备布置单元 和OEO再生器，受到每个线性部分选择一个光传输设备组合的限制，并且每个波长路径所需的OEO再生器的数量由波长路径的累积噪声和确定的噪声上限确定 对于波长 路径
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10.发明申请APPARATUS FOR SUPPORTING DESIGNING OF OPTICAL NETWORK, PROCESS FOR DESIGNING OPTICAL NETWORK, AND COMPUTER-READABLE, NON-TRANSITORY MEDIUM STORING NETWORK DESIGN PROGRAM 有权支持设计光网络的设备，设计光网络的过程和计算机可读，非终端介质存储网络设计程序公开(公告)号：US20110206371A1
公开(公告)日：2011-08-25
申请号：US13032698
申请日：2011-02-23
CPC分类号： H04B10/2513 , H04J14/0268 , H04J14/0269 , H04J14/0271
摘要： In an apparatus for supporting designing of an optical network including a plurality of nodes and links which connect the plurality of nodes: a storage stores information indicating distances of the links and information indicating amounts of chromatic dispersion in the links; and a path selection unit selects a path for use in transmission of an optical signal, from among a plurality of paths each extending from a start node to a destination node, by reference to the storage. The path selection unit selects the path for use in transmission on the basis of deviations of amounts of chromatic dispersion accumulated by transmission to respective nodes on each of the plurality of paths, from reference amounts at the respective nodes, and the reference amounts at the respective nodes on each of the plurality of paths are determined according to distances from the start node to the respective nodes.
摘要翻译： 在用于支持包括连接多个节点的多个节点和链路的光网络的设计的装置中：存储器存储指示链路的距离的信息和指示链路中的色散量的信息; 并且路径选择单元通过参考存储器从从开始节点到目的地节点延伸的多个路径中选择用于光信号的传输的路径。 路径选择单元根据从多个路径中的每一个路径上的各个节点的传输累积的色散量的偏差，从各个节点的参考量和各个节点的参考量，选择用于发送的路径。 根据从起始节点到相应节点的距离来确定多个路径中的每一个上的节点。
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