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1. 发明授权

US08401384B2 Optical access system, optical switching unit and optical line terminal 有权
标题翻译：光接入系统，光交换单元和光线路终端
公开(公告)号：US08401384B2
公开(公告)日：2013-03-19
申请号：US12503884
申请日：2009-07-16
申请人： Koji Wakayama , Hiroki Ikeda , Michitaka Okuno , Kenichi Sakamoto
发明人： Koji Wakayama , Hiroki Ikeda , Michitaka Okuno , Kenichi Sakamoto
IPC分类号： H04J14/00 , H04B10/00
CPC分类号： H04Q11/0067 , H04Q2011/0045 , H04Q2011/0064
摘要： Provided is an optical access system, including: an optical line terminal, a plurality of optical network units and an optical switching unit. The optical line terminal sends to the optical switching unit a control frame including a switching time when the optical switching unit is to make a switch from one of the optical communication paths between the optical line terminal and the plurality of optical network units to another, and an identifier of an optical communication path to which the switch is made in order to switch the optical communication paths between the optical line terminal and the plurality of optical network units. The optical switching unit switches the optical communication paths between the optical line terminal and the plurality of optical network units based on the switching time and the identifier of the optical communication path after switching which are included in the control frame.
摘要翻译：提供一种光接入系统，包括：光线路终端，多个光网络单元和光交换单元。光线路终端向光交换单元发送包括切换时间的控制帧，当光交换单元从光线路终端与多个光网络单元之间的光通信路径之一进行切换时，切换时间为为了切换光线路终端与多个光网络单元之间的光通信路径而进行交换的光通信路径的标识符。光切换单元基于包括在控制帧中的切换时间和切换后的光通信路径的标识符，切换光线路终端与多个光网络单元之间的光通信路径。

2. 发明授权

US08380065B2 Optical access system and optical line terminal 有权
标题翻译：光接入系统和光线路终端
公开(公告)号：US08380065B2
公开(公告)日：2013-02-19
申请号：US12582083
申请日：2009-10-20
申请人： Michitaka Okuno , Koji Wakayama , Kenichi Sakamoto , Hiroki Ikeda
发明人： Michitaka Okuno , Koji Wakayama , Kenichi Sakamoto , Hiroki Ikeda
IPC分类号： H04J14/00
CPC分类号： H04Q11/0067 , H04J2203/0058 , H04L43/0864 , H04Q2011/0079 , H04Q2011/0088
摘要： Provided is an optical access system comprising: an optical line terminal connected to another network; a plurality of optical network units, each connected to a user terminal; and at least one of an optical switching unit and an optical splitter, which is installed between the optical line terminal and the plurality of optical network units. The optical line terminal allocates a length of time to a discovery phase for detecting the plurality of optical network units, and a length of time to data transmission phases for transferring data from the plurality of optical network units; and changes a ratio of the length of time of the discovery phase to the length of time of the data transmission phases so that the length of time of the discovery phase is shortened in the case where a number of the optical network units that are registered in the optical line terminal increase.
摘要翻译：提供一种光接入系统，包括：连接到另一网络的光线路终端; 多个光网络单元，各自连接到用户终端; 以及安装在光线路终端与多个光网络单元之间的光交换单元和分光器中的至少一个。光线路终端将用于检测多个光网络单元的发现阶段的时间长度分配给从多个光网络单元传送数据的数据传输阶段的时间长度; 并且将发现阶段的时间长度与数据传输阶段的时间长度的比率进行改变，使得在注册的光网络单元的数量的情况下，发现阶段的时间长度被缩短光线路终端增加。

3. 发明申请

US20070110060A1 Packet switching apparatus 有权
标题翻译：分组交换设备
公开(公告)号：US20070110060A1
公开(公告)日：2007-05-17
申请号：US11650489
申请日：2007-01-08
申请人： Kazuho Miki , Kenichi Sakamoto , Koji Wakayama , Tetsuhiko Hirata , Hiroaki Miyata
发明人： Kazuho Miki , Kenichi Sakamoto , Koji Wakayama , Tetsuhiko Hirata , Hiroaki Miyata
IPC分类号： H04L12/56
CPC分类号： H04W88/005 , H04L12/2856 , H04L12/2859 , H04L12/4633 , H04L45/54 , H04L69/16 , H04L69/168
摘要： An access node run as a packet switching apparatus enables IP connection services for a plurality of access methods; e.g., relatively low-speed IP connection, high-speed 1P connection, and mobile network IP connection. By using this apparatus of the present invention, cost can be reduced and upgrading to advanced access networks and access services is easily carried out. Provision of the above access nodes implements upgrade-type network services common for diverse protocols. Each access node retains a pathfinding table to which input port, input tunnel identifier and input session identifier entries in a set are registered per session. When routing a packet, by looking up the set of these entries matching with the packet, the associated output port, output tunnel identifier, and output session identifier are obtained. After processing for the packet, appropriate for one of the plurality of access methods and network services, the node forwards the packet over the routed path.
摘要翻译：作为分组交换装置运行的接入节点能够实现多种接入方式的IP连接业务; 例如，相对低速的IP连接，高速1P连接和移动网络IP连接。通过使用本发明的装置，可以降低成本，容易地进行高级接入网和接入业务的升级。上述接入节点的配置实现了各种协议通用的升级型网络服务。每个访问节点保留路径寻找表，每个会话向其注册一个输入端口，输入隧道标识符和一组中的输入会话标识符条目。当路由数据包时，通过查找与数据包匹配的这些条目的集合，获得相关联的输出端口，输出隧道标识符和输出会话标识符。在针对分组的处理之后，适于多个接入方法和网络服务之一，节点通过路由路径转发分组。

4. 发明申请

US20050078673A1 Variable length packet communication device 失效
标题翻译：可变长度分组通信设备
公开(公告)号：US20050078673A1
公开(公告)日：2005-04-14
申请号：US10919393
申请日：2004-08-17
申请人： Kenichi Sakamoto , Nobuhito Matsuyama , Takeshi Aimoto , Noboru Endo , Koji Wakayama , Norihiko Moriwaki
发明人： Kenichi Sakamoto , Nobuhito Matsuyama , Takeshi Aimoto , Noboru Endo , Koji Wakayama , Norihiko Moriwaki
IPC分类号： H04L12/863 , H04L12/865 , H04L12/867 , H04L12/869 , H04L12/931 , H04L12/933 , H04L12/937 , H04L12/947 , H04L12/951 , H04L12/56
CPC分类号： H04L49/30 , H04L12/5601 , H04L45/302 , H04L45/60 , H04L49/101 , H04L49/20 , H04L49/254 , H04L49/3009 , H04L49/3018 , H04L49/3027 , H04L49/508 , H04L49/608 , H04L2012/5651 , H04L2012/5652 , H04L2012/5681
摘要： An input interface segments a variable length packet into plurality of fixed length cells and generates an internal switching information based on the header information of the variable length packet. The input interface transmits the information to a switch and, after that, transmits the cells as the following cells of the information to the switch. The switch performs switching processing to the succeeding cells based on the information. Therefore, the information is not added to the cells. When an input interface starts to transmit cells generated from a packet to its destination output interface through the switch, the switch is reserved until all the cells arrive at the output interfaces.
摘要翻译：输入接口将可变长度分组划分成多个固定长度单元，并且基于可变长度分组的报头信息生成内部切换信息。输入接口将信息发送给交换机，然后将信元作为信息的下列单元发送给交换机。交换机根据该信息对后续的小区进行切换处理。因此，信息不会添加到单元格中。当输入接口开始通过交换机将从数据包生成的单元传输到其目标输出接口时，保留交换机直到所有单元到达输出接口。

5. 发明授权

US07881311B2 VPN composing method, interwork router, packet communication method, data communication apparatus, and packet relaying apparatus 有权
公开(公告)号：US07881311B2
公开(公告)日：2011-02-01
申请号：US10614134
申请日：2003-07-08
申请人： Kenichi Sakamoto , Kazuyoshi Hoshino , Koji Wakayama , Shiro Tanabe , Noboru Endo
发明人： Kenichi Sakamoto , Kazuyoshi Hoshino , Koji Wakayama , Shiro Tanabe , Noboru Endo
IPC分类号： H04L12/46
CPC分类号： H04L45/50 , H04L12/2856 , H04L12/2874 , H04L12/4633 , H04L12/4641
摘要： A method serves to compose a VPN (Virtual Private Network) over a plurality of networks, each of which is managed by a different Internet Service Provider (ISP). When a packet with a first capsule header used for composing a VPN in a first ISP network is transmitted to a second ISP network, a route for outputting the packet to the second ISP network is determined based on the information both in the capsule header and in the IP header. In addition, a second capsule header used for composing a VPN in the second ISP network is determined based on the above information.

6. 发明授权

US07869441B2 Variable length packet communication device 失效
标题翻译：可变长度分组通信设备
公开(公告)号：US07869441B2
公开(公告)日：2011-01-11
申请号：US10919393
申请日：2004-08-17
申请人： Kenichi Sakamoto , Nobuhito Matsuyama , Takeshi Aimoto , Noboru Endo , Koji Wakayama , Norihiko Moriwaki
发明人： Kenichi Sakamoto , Nobuhito Matsuyama , Takeshi Aimoto , Noboru Endo , Koji Wakayama , Norihiko Moriwaki
IPC分类号： H04L12/28
CPC分类号： H04L49/30 , H04L12/5601 , H04L45/302 , H04L45/60 , H04L49/101 , H04L49/20 , H04L49/254 , H04L49/3009 , H04L49/3018 , H04L49/3027 , H04L49/508 , H04L49/608 , H04L2012/5651 , H04L2012/5652 , H04L2012/5681
摘要： An input interface segments a variable length packet into plurality of fixed length cells and generates an internal switching information based on the header information of the variable length packet. The input interface transmits the information to a switch and, after that, transmits the cells as the following cells of the information to the switch. The switch performs switching processing to the succeeding cells based on the information. Therefore, the information is not added to the cells. When an input interface starts to transmit cells generated from a packet to its destination output interface through the switch, the switch is reserved until all the cells arrive at the output interfaces.
摘要翻译：输入接口将可变长度分组划分成多个固定长度单元，并且基于可变长度分组的报头信息生成内部切换信息。输入接口将信息发送给交换机，然后将信元作为信息的下列单元发送给交换机。交换机根据该信息对后续的小区进行切换处理。因此，信息不会添加到单元格中。当输入接口开始通过交换机将从数据包生成的单元传输到其目标输出接口时，保留交换机直到所有单元到达输出接口。

7. 发明授权

US06633571B1 VPN composing method, interwork router, packet communication method, data communication apparatus, and packet relaying apparatus 有权
标题翻译： VPN组合方法，互通路由器，分组通信方法，数据通信装置和分组中继装置
公开(公告)号：US06633571B1
公开(公告)日：2003-10-14
申请号：US09392623
申请日：1999-09-09
申请人： Kenichi Sakamoto , Kazuyoshi Hoshino , Koji Wakayama , Shiro Tanabe , Noboru Endo
发明人： Kenichi Sakamoto , Kazuyoshi Hoshino , Koji Wakayama , Shiro Tanabe , Noboru Endo
IPC分类号： H04L1246
CPC分类号： H04L45/50 , H04L12/2856 , H04L12/2874 , H04L12/4633 , H04L12/4641
摘要： A method serves to compose a VPN (Virtual Private Network) over a plurality networks each of which is managed by different Internet Service Providers (ISP). When a packet with a first capsule header used for composing a VPN in a first ISP network is transmitted to a second ISP network, a route for outputting packet to the second ISP network is determined based on the information both in the capsule header and in the IP header. In addition, a second capsule header used for composing a VPN in the second ISP network is determined based on the above information.
摘要翻译：一种方法用于在多个网络中组成VPN（虚拟专用网络），每个网络由不同的因特网服务提供商（ISP）管理。当在第一ISP网络中发送用于组合VPN的第一胶囊头的分组被发送到第二ISP网络时，基于胶囊头部和第二ISP网络中的信息确定用于向第二ISP网络输出分组的路由 IP头。另外，基于上述信息确定用于构成第二ISP网络中的VPN的第二胶囊报头。

8. 发明申请

US20050185577A1 IP packet communication apparatus 失效
标题翻译： IP分组通信装置
公开(公告)号：US20050185577A1
公开(公告)日：2005-08-25
申请号：US11115125
申请日：2005-04-27
申请人： Kenichi Sakamoto , Noboru Endo , Toshiki Sugawara , Koji Wakayama , Kazuyoshi Hoshino
发明人： Kenichi Sakamoto , Noboru Endo , Toshiki Sugawara , Koji Wakayama , Kazuyoshi Hoshino
IPC分类号： H04L12/56 , H04J14/02 , H04L12/26
CPC分类号： H04J14/0295 , H04J14/0227 , H04J14/0241 , H04J14/0278 , H04J14/0283 , H04J14/029 , H04J14/0294 , H04J14/0297 , H04L43/00 , H04L43/0829 , H04L43/0847 , H04L43/10 , H04L43/16
摘要： In an IP packet communication apparatus, an operation and maintenance function capable of monitoring a transmission path is provided to a layer used to process a packet, which corresponds to an upper layer of an optical network. As one method for applying the operation and maintenance function to the packet layer, in the case of IP over PPP over WDM, an operation/maintenance frame is defined to a PPP frame so as to realize the operation/maintenance function of a PPP connection. In the case that a plurality of connections are multiplexed on the same transmission path, a maintenance frame is conducted in order to operate/manage these connections by being grouped, so that a fault occurring in the optical network is monitored. As another method for applying the operation and maintenance function to the packet layer, an operation/maintenance frame is defined to an IP packet so as to realize an operation and maintenance function of an IP flow. Also, since a plurality of flows are multiplexed on the same transmission path, a management packet is defined to operate/manage these flows to be grouped, so that a fault occurring the in the optical network is monitored.
摘要翻译：在IP分组通信装置中，向用于处理对应于光网络的上层的分组的层提供能够监视传输路径的操作和维护功能。作为对分组层应用操作和维护功能的一种方法，在通过WDM通过PPP的IP的情况下，将操作/维护帧定义为PPP帧，以实现PPP连接的操作/维护功能。在多个连接被复用在同一传输路径上的情况下，进行维护帧以通过分组来操作/管理这些连接，从而监视在光网络中发生的故障。作为对分组层应用操作和维护功能的另一种方法，将IP分组定义为操作/维护帧，以实现IP流的操作和维护功能。此外，由于多个流在同一传输路径上多路复用，所以管理分组被定义为对这些流进行分组操作/管理，从而监视在光网络中发生的故障。

9. 发明授权

US06836479B1 Variable length packet communication device 失效
标题翻译：可变长度分组通信设备
公开(公告)号：US06836479B1
公开(公告)日：2004-12-28
申请号：US09362134
申请日：1999-07-28
申请人： Kenichi Sakamoto , Nobuhito Matsuyama , Takeshi Aimoto , Noboru Endo , Koji Wakayama , Norihiko Moriwaki
发明人： Kenichi Sakamoto , Nobuhito Matsuyama , Takeshi Aimoto , Noboru Endo , Koji Wakayama , Norihiko Moriwaki
IPC分类号： H04L1228
CPC分类号： H04L49/30 , H04L12/5601 , H04L45/302 , H04L45/60 , H04L49/101 , H04L49/20 , H04L49/254 , H04L49/3009 , H04L49/3018 , H04L49/3027 , H04L49/508 , H04L49/608 , H04L2012/5651 , H04L2012/5652 , H04L2012/5681
摘要： An input interface segments a variable length packet into plurality of fixed length cells and generates an internal switching information based on the header information of the variable length packet. The input interface transmits the information to a switch and, after that, transmits the cells as the following cells of the information to the switch. The switch performs switching processing to the succeeding cells based on the information. Therefore, the information is not added to the cells. When an input interface starts to transmit cells generated from a packet to its destination output interface through the switch, the switch is reserved until all the cells arrive at the output interfaces.
摘要翻译：输入接口将可变长度分组划分成多个固定长度单元，并且基于可变长度分组的报头信息生成内部切换信息。输入接口将信息发送给交换机，然后将信元作为信息的下列单元发送给交换机。交换机根据该信息对后续的小区进行切换处理。因此，信息不会添加到单元格中。当输入接口开始通过交换机将从数据包生成的单元传输到其目标输出接口时，保留交换机直到所有单元到达输出接口。

10. 发明授权

US08014420B2 Label switching type of packet forwarding apparatus 有权
标题翻译：标签交换类型的分组转发设备
公开(公告)号：US08014420B2
公开(公告)日：2011-09-06
申请号：US12550945
申请日：2009-08-31
申请人： Kazuho Miki , Kenichi Sakamoto , Koji Wakayama
发明人： Kazuho Miki , Kenichi Sakamoto , Koji Wakayama
IPC分类号： H04J3/22
CPC分类号： H04L49/3009 , H04L49/602
摘要： A label switching type packet forwarding apparatus having a routing information table in which a forwarding type of a reception packet, output port identification information, and output routing information of a specific layer in the OSI reference model determined by the forwarding type are defined in correspondence with routing information which is found upon reception of a packet, for converting a header of a reception packet in accordance with the packet forwarding type and the output routing information obtained by a table search.
摘要翻译：一种标签交换型分组转发装置，具有路由信息表，其中，由转发类型确定的OSI参考模型中的接收分组的转发类型，输出端口识别信息和特定层的输出路由信息被定义为与在接收到分组时发现的路由信息，用于根据分组转发类型转换接收分组的报头，以及通过表搜索获得的输出路由信息。

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