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21. 发明申请

US20070253712A1 Method for designing optical network, optical network, and computer readable medium 有权
标题翻译：光网络，光网络和计算机可读介质的设计方法
公开(公告)号：US20070253712A1
公开(公告)日：2007-11-01
申请号：US11808911
申请日：2007-06-13
申请人： Toru Katagiri , Kazuyuki Tajima , Tomohiro Hashiguchi
发明人： Toru Katagiri , Kazuyuki Tajima , Tomohiro Hashiguchi
IPC分类号： H04B10/20
CPC分类号： H04J14/0227 , H04B10/275 , H04J14/0241 , H04J14/0283 , H04J14/0284 , H04J14/0286
摘要： An appropriate ring topology is selected by searching network topology information on the basis of given information about client signal paths on a predetermined condition, and a wavelength ring accommodating the client signal paths and having an optimal transmission characteristic is designed on the basis of the selected ring topology. Accordingly, accommodation of client signal paths in an optical network is efficiently designed.
摘要翻译：通过在预定条件下，基于关于客户信号路径的给定信息搜索网络拓扑信息来选择适当的环形拓扑，并且基于所选择的环设计容纳客户端信号路径并具有最佳传输特性的波长环拓扑。因此，有效地设计了光网络中的客户端信号路径的适应。

22. 发明申请

US20110038254A1 APPARATUS AND METHOD FOR FINDING A PAIR OF DISJOINT PATHS IN A COMMUNICATION NETWORK 有权
标题翻译：用于在通信网络中找到一对分组码的装置和方法
公开(公告)号：US20110038254A1
公开(公告)日：2011-02-17
申请号：US12853336
申请日：2010-08-10
申请人： Tomohiro HASHIGUCHI , Toru Katagiri , Kazuyuki Tajima , Yutaka Takita
发明人： Tomohiro HASHIGUCHI , Toru Katagiri , Kazuyuki Tajima , Yutaka Takita
IPC分类号： H04J3/14
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。

23. 发明授权

US07830789B2 Method for accommodating signal paths to ring network 有权
标题翻译：适应环网信号路径的方法
公开(公告)号：US07830789B2
公开(公告)日：2010-11-09
申请号：US12215449
申请日：2008-06-27
申请人： Tomohiro Hashiguchi , Toru Katagiri , Kazuyuki Tajima
发明人： Tomohiro Hashiguchi , Toru Katagiri , Kazuyuki Tajima
IPC分类号： H04L12/42
CPC分类号： H04J3/085 , H04J2203/0067 , H04L45/123 , H04L45/124 , H04L45/302
摘要： According an aspect of the embodiment, there is provided a method for accommodating signal paths to a ring network. A demand chain is defined as a series of traffic demands in which each traffic demand shares one of the pair of terminal nodes pointed thereby with at least one adjacent traffic demand and the number of pairs of terminal nodes pointed by traffic demands in the series of traffic demands is maximized. Each traffic demand of the demand chain is corresponded to a demand accommodating route which is defined as a route between the pair of terminal nodes on the ring network pointed by the each traffic demand and arranged in a predetermined rotation direction on the ring network. Then, signal paths required by traffic demands each pointing a pair of terminal nodes both included in the demand accommodating route chain are accommodated to the demand accommodating route chain.
摘要翻译：根据实施例的一个方面，提供一种用于适应信号路径到环形网络的方法。需求链被定义为一系列交通需求，其中每个交通需求分享至少一个相邻交通需求的一对终端节点中的一个，以及在一系列交通中指向交通需求的终端节点对数要求最大化。需求链的每个业务需求对应于需求容纳路由，其被定义为由每个业务需求指向的环形网络上的一对终端节点之间的路由，并且以环形网络上的预定旋转方向布置。然后，由需求容纳路径链包括的一对终端节点指向需求容纳路由链所需的信号路径。

24. 发明申请

US20100061722A1 NETWORK DESIGN APPARATUS AND NETWORK DESIGN METHOD 有权
标题翻译：网络设计设备和网络设计方法
公开(公告)号：US20100061722A1
公开(公告)日：2010-03-11
申请号：US12479206
申请日：2009-06-05
申请人： Tomohiro Hashiguchi , Toru Katagiri , Kazuyuki Tajima , Yutaka Takita
发明人： Tomohiro Hashiguchi , Toru Katagiri , Kazuyuki Tajima , Yutaka Takita
IPC分类号： H04B10/08
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

25. 发明授权

US07660527B2 Optical network design method 有权
标题翻译：光网络设计方法
公开(公告)号：US07660527B2
公开(公告)日：2010-02-09
申请号：US11463126
申请日：2006-08-08
申请人： Tomohiro Hashiguchi , Toru Katagiri , Kazuyuki Tajima
发明人： Tomohiro Hashiguchi , Toru Katagiri , Kazuyuki Tajima
IPC分类号： H04B10/00 , H04B10/08
CPC分类号： H04J14/0227 , H04J3/08 , H04J3/1611 , H04J14/0241 , H04J14/0283 , H04J2203/0067 , H04J2203/0085 , H04J2203/0094 , H04L41/145 , H04Q2011/0086
摘要： In the case that a client signal having a bandwidth larger than BW divided by P exists, where the P is the number of client ports of one optical transponder card and the BW is an optical signal band, it is configured to accommodate client signals in one optical transponder card by combining plural client signals of which the total band is no greater than the BW and which have different bands so as to make it a maximum within the aforementioned range.
摘要翻译：在具有大于BW除以P的带宽的客户端信号存在的情况下，P是一个光转发器卡的客户端端口的数量，并且BW是光信号频带，其被配置为将客户端信号容纳在一个通过组合多个客户信号，其中总频带不大于BW，并具有不同频带，以使其在上述范围内最大。

26. 发明申请

US20080080554A1 OPTICAL NETWORK DESIGN METHOD AND STORAGE MEDIUM FOR STORING DESIGN PROGRAM 有权
标题翻译：用于存储设计程序的光网络设计方法和存储介质
公开(公告)号：US20080080554A1
公开(公告)日：2008-04-03
申请号：US11742532
申请日：2007-04-30
申请人： Tomohiro Hashiguchi , Toru Katagiri , Kazuyuki Tajima
发明人： Tomohiro Hashiguchi , Toru Katagiri , Kazuyuki Tajima
IPC分类号： H04J3/16
CPC分类号： H04J14/0294 , H04J14/0227 , H04J14/0241 , H04J14/0278 , H04J14/0283 , H04J2203/0089
摘要： If exists a client signal of a bandwidth larger than “optical signal bandwidth BW” divided by “the number of utilizable ports P”, extracted is a combinations of signals including one or more of a signal of a maximum bandwidth, of signals of which a total bandwidth is within the BW and of signals of which the number of total ports required in correspondence with a protection type of each client signal is equal to P, and selected is a combination of which the total bandwidth is a maximum from among the extracted combinations.
摘要翻译：如果存在大于“光信号带宽BW”的带宽的客户端信号除以“可用端口P的数量”，则提取的是包括最大带宽的信号中的一个或多个的信号的组合，其信号为总带宽在BW内，并且与每个客户端信号的保护类型相对应所需的总端口数等于P的信号，并且所选择的是从提取的组合中总带宽最大的组合。

27. 发明申请

US20070264018A1 OPTICAL NETWORK DESIGN METHOD 有权
标题翻译：光网络设计方法
公开(公告)号：US20070264018A1
公开(公告)日：2007-11-15
申请号：US11463126
申请日：2006-08-08
申请人： Tomohiro HASHIGUCHI , Toru Katagiri , Kazuyuki Tajima
发明人： Tomohiro HASHIGUCHI , Toru Katagiri , Kazuyuki Tajima
IPC分类号： H04J14/00
CPC分类号： H04J14/0227 , H04J3/08 , H04J3/1611 , H04J14/0241 , H04J14/0283 , H04J2203/0067 , H04J2203/0085 , H04J2203/0094 , H04L41/145 , H04Q2011/0086
摘要： In the case that a client signal having a bandwidth larger than BW divided by P exists, where the P is the number of client ports of one optical transponder card and the BW is an optical signal band, it is configured to accommodate client signals in one optical transponder card by combining plural client signals of which the total band is no greater than the BW and which have different bands so as to make it a maximum within the aforementioned range.
摘要翻译：在具有大于BW除以P的带宽的客户端信号存在的情况下，P是一个光转发器卡的客户端端口的数量，并且BW是光信号频带，其被配置为将客户端信号容纳在一个通过组合多个客户信号，其中总频带不大于BW，并具有不同频带，以使其在上述范围内最大。

28. 发明授权

US08805199B2 Dispersion compensation design method and dispersion compensation design system 有权
标题翻译：色散补偿设计方法和色散补偿设计系统
公开(公告)号：US08805199B2
公开(公告)日：2014-08-12
申请号：US13301149
申请日：2011-11-21
申请人： Kazuyuki Tajima , Tomohiro Hashiguchi , Yutaka Takita
发明人： Kazuyuki Tajima , Tomohiro Hashiguchi , Yutaka Takita
IPC分类号： H04B10/12 , H04B10/2525
CPC分类号： H04B10/25253
摘要： A dispersion compensation design system includes a changing unit setting a changed value for the amount of dispersion compensation for a span connecting nodes constituting an optical network; a path classification unit determining whether respective paths in the optical network are capable of transmission with the changed value and classifying one or more of the paths as second category paths based on the determination results; an updating unit updating the amount of dispersion compensation with the changed value if the number of the second category paths in the latest classification result is less than the number of the second category paths in the retained previous classification result; and a repeating unit that, if not all of the paths in the optical network are capable of transmission, prevents use of combinations of amounts of dispersion compensation applied to the spans in the second category paths in the latest classification result.
摘要翻译：色散补偿设计系统包括：改变单元，设置用于构成光网络的节点的跨度的色散补偿量的变化值; 路径分类单元，确定光网络中的相应路径是否能够以改变的值传输，并且基于确定结果将一个或多个路径分类为第二类别路径; 如果最新分类结果中的第二类别路径的数量少于所保留的先前分类结果中的第二类别路径的数量，则更新单元用改变的值更新色散补偿量; 以及如果不是全部光网络中的路径能够传输的重复单元，则防止在最新分类结果中使用在第二类别路径中应用于跨度的色散补偿量的组合。

29. 发明授权

US08781329B2 Dispersion compensation design method and dispersion compensation design system 有权
标题翻译：色散补偿设计方法和色散补偿设计系统
公开(公告)号：US08781329B2
公开(公告)日：2014-07-15
申请号：US13363917
申请日：2012-02-01
申请人： Yutaka Takita , Tomohiro Hashiguchi , Kazuyuki Tajima
发明人： Yutaka Takita , Tomohiro Hashiguchi , Kazuyuki Tajima
IPC分类号： H04J14/02 , H04B10/12
CPC分类号： H04B10/275 , H04B10/25253 , H04J14/02
摘要： A dispersion compensation design system includes a segment dividing unit to divide an optical network into segments of a linear network or a ring network, a path classifying unit to classify one of paths of the optical network, as a specific type path, the one of the paths being incapable of transmitting an optical signal and contained in a longer path having a route longer than that of the one of the paths and capable of transmitting the optical signal, a segment reconfiguration unit to reconfigure the segments so as to maximize a number of the specific type paths, a dispersion compensation amount computing unit to compute a dispersion compensation amount in any of spans of the optical network so as to minimize the number of the specific type paths within the reconfigured segment, and an update unit to update the dispersion compensation amount with the computed dispersion compensation amount.
摘要翻译：色散补偿设计系统包括一个分段单元，用于将光网络划分为线性网络或环网的分段，路径分类单元将光网络中的一条路径分类为特定类型路径，路径不能发送光信号并且包含在具有比该一个路径的路径长的路径的较长路径中并且能够发送光信号的段重配置单元，以重新配置段，以便最大化特定类型路径，色散补偿量计算单元，用于计算光网络中的任一跨度的色散补偿量，以便最小化重配置段内的特定类型路径的数量;以及更新单元，用于更新色散补偿量与计算的色散补偿量。

30. 发明申请

US20130003730A1 PATH SEARCH PROGRAM, PATH SEARCH APPARATUS AND PATH SEARCH METHOD 审中-公开
标题翻译：路径搜索程序，路径搜索设备和路径搜索方法
公开(公告)号：US20130003730A1
公开(公告)日：2013-01-03
申请号：US13469237
申请日：2012-05-11
申请人： Kazuyuki Tajima , Tomohiro Hashiguchi , Yutaka Takita
发明人： Kazuyuki Tajima , Tomohiro Hashiguchi , Yutaka Takita
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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