公开(公告)号：US5822298A

公开(公告)日：1998-10-13

申请号：US687235

申请日：1996-07-25

申请人： Tsuyoshi Matsumoto ,  Noriyuki Kimura ,  Kenji Taniguchi ,  Takashi Tai ,  Hiroaki Nagao ,  Masashi Hirome

发明人： Tsuyoshi Matsumoto ,  Noriyuki Kimura ,  Kenji Taniguchi ,  Takashi Tai ,  Hiroaki Nagao ,  Masashi Hirome

IPC分类号： H04J3/14 ,  H04L12/42

CPC分类号： H04L12/42

摘要： A ring transmission system includes nodes connected in a ring shape by transmission lines to communicate with each other. Each node includes a cell extracting unit which receives a cell from the transmission lines and separates a control field from the cell in accordance with a communication control procedure, the control field including a number of bits containing management data and a destination, the management data indicating information related to maintenance and operation of the ring transmission system. A separating unit separates, from the control field, one of management data for the node and management data for another node by comparing the destination with an identification of the node. A management data processing unit generates processed management data from the management data when the destination indicates the node. An intermediate unit generates a new cell containing the management data from the separating unit when the destination indicates the another node. The management data of the new cell is distinctly different from the processed management data. The intermediate unit transmits the new cell to the transmission lines.

摘要翻译： 环形传输系统包括通过传输线路连接成环形的节点以彼此通信的节点。 每个节点包括一个单元提取单元，该单元从传输线接收一个单元，并根据一个通信控制程序从该单元中分离一个控制区，该控制字段包含一些包含管理数据和一个目的地的位，该管理数据表示 与环形传输系统的维护和运行有关的信息。 分离单元通过将目的地与节点的标识进行比较，将与节点的管理数据和用于另一节点的管理数据之间的一个与控制字段分离。 当目的地指示节点时，管理数据处理单元从管理数据生成处理的管理数据。 当目的地指示另一节点时，中间单元生成包含来自分离单元的管理数据的新单元。 新单元的管理数据与处理的管理数据有明显的不同。 中间单元将新单元发送到传输线。

公开(公告)号：US5636204A

公开(公告)日：1997-06-03

申请号：US506865

申请日：1995-07-25

申请人： Hiroyuki Mizuno ,  Takashi Tai ,  Noriyuki Kimura ,  Hiroaki Nagao

发明人： Hiroyuki Mizuno ,  Takashi Tai ,  Noriyuki Kimura ,  Hiroaki Nagao

IPC分类号： H04J3/14 ,  H04L12/437 ,  H04L29/14 ,  H04L12/26

CPC分类号： H04J3/14 ,  H04L69/40 ,  H04L12/437

摘要： Designed such that in systems comprising a plurality of transmission devices and transmission lines connecting the transmission devices, transmission line fault data indicating fault event conditions on transmission lines is circulated among the transmission devices and when a fault is verified on a connecting transmission line, verified transmission line fault data is appended by the transmission devices to the input transmission line fault data for output.

摘要翻译： 设计成使得在包括多个传输设备和连接传输设备的传输线路的系统中，在传输设备之间传输指示传输线路上的故障事件状况的传输线故障数据，并且当在连接传输线路上验证故障时，验证传输 线路故障数据由传输设备附加到输入传输线路故障数据进行输出。

公开(公告)号：US07050434B2

公开(公告)日：2006-05-23

申请号：US10079125

申请日：2002-02-19

申请人： Nobuyuki Tamura ,  Hiroaki Nagao ,  Sotohiro Kobayashi

发明人： Nobuyuki Tamura ,  Hiroaki Nagao ,  Sotohiro Kobayashi

IPC分类号： H04L12/28 ,  H04J3/24

CPC分类号： H04L61/6022 ,  H04J2203/0082 ,  H04L29/12009 ,  H04L29/12839 ,  H04L69/22 ,  H04Q11/0478

摘要： A digital transmission apparatus, which accommodates a plurality of terminals for exchanging asynchronous frames each including a MAC address, and is used for transmitting the asynchronous frames by putting each of the asynchronous frames in a synchronous frame, includes an address table for storing an address of a group including the digital transmission apparatus, a header-creating unit for creating a header including a communication-destination transmission-apparatus identification including an address of a group including the digital transmission apparatus and a header-adding unit for creating a first frame by adding the header to data of an asynchronous frame received from any one of the terminals.

公开(公告)号：US06992977B2

公开(公告)日：2006-01-31

申请号：US10036278

申请日：2001-11-07

申请人： Nobuyuki Tamura ,  Hiroaki Nagao ,  Sotohiro Kobayashi

发明人： Nobuyuki Tamura ,  Hiroaki Nagao ,  Sotohiro Kobayashi

IPC分类号： H04L1/00

CPC分类号： H04L12/6418 ,  H04L41/064

摘要： A transmission apparatus includes a reception line selecting unit, a communication confirming frame transmitting unit, a communication confirming table, and a reception line deciding unit. The reception line selecting unit selects one of several reception lines each formed by the synchronous network. The frame transmitting unit transmits a communication confirming frame to the synchronous network at least at a predetermined period. The communication confirming table stores each reception time of the communication confirming frame received through the synchronous network. The deciding unit decides occurrence of failure on the reception line corresponding to the reception time when a difference between a reception time stored in the table and a present time at the predetermined period exceeds a predetermined value, and transmits instructions for switching the reception line to the reception line selecting unit.

公开(公告)号：US07693154B2

公开(公告)日：2010-04-06

申请号：US10695474

申请日：2003-10-28

申请人： Tomonori Gotoh ,  Katsumi Tanaka ,  Hiroaki Nagao

发明人： Tomonori Gotoh ,  Katsumi Tanaka ,  Hiroaki Nagao

IPC分类号： H04L12/28

CPC分类号： H04L45/00 ,  H04L12/427

摘要： A transmitter equipped with a plurality of transmission path ports and a relay section. The relay section has a routing table and a router. In the routing table, information about the relay of the received packet to one of the transmission path ports connected to a relay transmission path is stored, correlated with both a port identifier of each the transmission path port and the source address of the transmitter that transmitted the packet. The router extracts the port identifier of the transmission path port that received the packet and the source address contained in the received packet, and routes the received packet to the transmission path port connected to the relay transmission path by referring to the routing table for the extracted port identifier and the extracted source address.

摘要翻译： 具有多个传输路径端口的发射机和中继部分。 中继部分具有路由表和路由器。 在路由表中，存储有关将接收到的分组中继到连接到中继传输路径的传输路径端口之一的信息，与传输路径端口中的每一个的端口标识符和发送的发射机的源地址相关联 包。 路由器提取接收到包的传输路径端口的端口标识和接收到的包中包含的源地址，并通过参考提取的路由表将接收的包路由到连接到中继传输路径的传输路径端口 端口标识符和提取的源地址。