公开(公告)号：US09012031B2

公开(公告)日：2015-04-21

申请号：US13805437

申请日：2011-07-05

申请人： Kazuo Takagi

发明人： Kazuo Takagi

IPC分类号： F16L9/02 ,  F02M55/02 ,  F16L58/08

CPC分类号： F16L9/02 ,  F02M55/02 ,  F02M2200/05 ,  F02M2200/9038 ,  F16L58/08 ,  Y10T428/12486 ,  Y10T428/12799 ,  Y10T428/12937

摘要： To provide a steel fuel conveying pipe which has high resistance to corrosive fuel and maintains reliability without damaging a direct-injection engine, and connects a high-pressure pump and a direct-injection rail with each other in a gasoline direct-injection engine system, and a fuel conveying pipe suitable as a bypass pipe for coupling direct-injection rails with each other in a V-type gasoline engine. A steel fuel conveying pipe for conveying gasoline is characterized in that a Ni-plated layer is provided on the whole inner circumferential face of the fuel conveying pipe, and an anti-rust film layer composed of a Zn-plated layer and a Zn-based alloy-plated layer is further provided on the Ni-plated layer at at least one end of the fuel conveying pipe.

摘要翻译： 为了提供一种具有高耐腐蚀性燃料的钢燃料输送管，并且在不损害直喷式发动机的情况下保持可靠性，并且在汽油直喷发动机系统中将高压泵和直接喷射轨彼此连接， 以及适用于在V型汽油发动机中将直接注入轨道彼此连接的旁通管的燃料输送管。 用于输送汽油的钢燃料输送管的特征在于，在燃料输送管的整个内周面上设置有镀镍层，并且由Zn镀层和Zn基镀层构成的防锈膜层 在燃料输送管的至少一端的Ni镀层上进一步设置合金镀层。

公开(公告)号：US08565124B2

公开(公告)日：2013-10-22

申请号：US11885573

申请日：2006-03-01

申请人： Masaki Umayabashi ,  Kazuo Takagi ,  Daisaku Ogasahara ,  Nobuyuki Enomoto ,  Youichi Hidaka ,  Atsushi Iwata

发明人： Masaki Umayabashi ,  Kazuo Takagi ,  Daisaku Ogasahara ,  Nobuyuki Enomoto ,  Youichi Hidaka ,  Atsushi Iwata

IPC分类号： H04L12/28

CPC分类号： H04L12/462 ,  H04L45/48

摘要： Provided in the EoE technique are the node, the network, the correspondence relationship generating method and the frame transfer program to avoid traffic concentration on a specific link to improve throughput of the network as a whole by realizing optimum path transfer. The frame switching unit includes the frame analysis unit for analyzing an input frame kind and the like, the table search unit for obtaining frame rewriting information and output port information, the forwarding table storage unit for managing an output port of a frame, the MAC learning unit for executing MAC address learning, the EoE-MAC learning unit for learning a relationship between a MAC address and an EoE-MAC address, the STP control unit for executing processing of a spanning tree, and the like.

摘要翻译： 在EoE技术中提供了节点，网络，对应关系生成方法和帧传输程序，以避免特定链路上的流量集中，从而通过实现最佳路径传输来提高整个网络的吞吐量。 帧切换单元包括用于分析输入帧种类等的帧分析单元，用于获取帧重写信息和输出端口信息的表搜索单元，用于管理帧的输出端口的转发表存储单元，MAC学习 用于执行MAC地址学习的单元，用于学习MAC地址和EoE-MAC地址之间的关系的EoE-MAC学习单元，用于执行生成树的处理的STP控制单元等。

公开(公告)号：US20120219003A1

公开(公告)日：2012-08-30

申请号：US13505546

申请日：2010-11-02

申请人： Zhenlong Cui ,  Hiroyuki Takagi ,  Masaki Umayabashi ,  Kazuo Takagi ,  Akira Sakurai ,  Hiroshi Tanaka

发明人： Zhenlong Cui ,  Hiroyuki Takagi ,  Masaki Umayabashi ,  Kazuo Takagi ,  Akira Sakurai ,  Hiroshi Tanaka

IPC分类号： H04L12/56

CPC分类号： H04L12/26 ,  H04L43/00 ,  H04L43/0817 ,  H04L45/50 ,  H04L47/286 ,  H04L49/30 ,  H04L49/555

摘要： [Issues] To provide a node (transfer device) which can process an OAM frame within an output line card.[Solution Method]A node according to the present invention is used in an MPLS (Multi Protocol Label Switching) network, and the node includes an input unit which receives an OAM (Operation Administration and Maintenance) frame including TTL (Time To Live) from outside of the node and an output unit which transmits an OAM frame to outside of the node, wherein the input unit sets the TTL to a specific value and transmits the received OAM frame to the output unit in case a termination destination which an OAM frame received from outside indicates is the node and the received OAM frame is to be transmitted to the output unit and the output unit terminates an OAM frame transmitted from the input unit.

摘要翻译： [问题]提供可以处理输出线卡内的OAM帧的节点（传送装置）。 [解决方案]根据本发明的节点在MPLS（多协议标签交换）网络中使用，并且节点包括输入单元，其接收包括TTL（生存时间）的OAM（操作管理和维护）帧， 在节点外部，以及将OAM帧发送到节点外部的输出单元，其中，输入单元将TTL设置为特定值，并且在接收到OAM帧的终止目的地的情况下将接收到的OAM帧发送到输出单元 从外部指示是节点，并且所接收的OAM帧将被发送到输出单元，并且输出单元终止从输入单元发送的OAM帧。

公开(公告)号：US07898942B2

公开(公告)日：2011-03-01

申请号：US11887289

申请日：2006-03-31

申请人： Kazuo Takagi ,  Masahiro Sakauchi ,  Daisaku Ogasahara

发明人： Kazuo Takagi ,  Masahiro Sakauchi ,  Daisaku Ogasahara

IPC分类号： H04L12/42 ,  H04L12/437 ,  H04L12/56

CPC分类号： H04L41/0654 ,  H04L41/12

摘要： In a multi-ring network with a plurality of rings to which RPR is applied connected, high-speed failure recovery is enabled when a failure occurs between the rings. The contact nodes 700-1 and 700-3 connected to the living inter-link 505 periodically transmit and receive a KeepAlive signal to/from each other. Then, when a KeepAlive signal fails to arrive for a fixed time period, determination is made that the inter-link 505 develops a fault to broadcast-transmit an inter-link failure notification RPR-MAC frame indicative of failure occurrence on the inter-link to each node. A contact node as a transmission source of the inter-link failure notification RPR-MAC frame and each node having received the inter-link failure notification RPR-MAC frame immediately flush learning contents of their own learning data bases. A contact node connected to the spare inter-link 506 switches the spare inter-link 506 to a forwarding state.

摘要翻译： 在连接有RPR的多个环的多环网络中，在环之间发生故障时，能够进行高速故障恢复。 连接到生活链路505的接触节点700-1和700-3周期性地向彼此发送和接收KeepAlive信号。 然后，当KeepAlive信号在固定时间段内不能到达时，确定链路间链路505发生故障以广播发送指示链路间故障发生的链路间故障通知RPR-MAC帧 到每个节点。 作为链路间故障通知RPR-MAC帧的发送源的接触节点和已经接收到链路间故障通知RPR-MAC帧的每个节点立即刷新其自己的学习数据库的学习内容。 连接到备用链路间506的联系节点将备用链路间506切换到转发状态。

公开(公告)号：US20100220612A1

公开(公告)日：2010-09-02

申请号：US12396016

申请日：2009-03-02

申请人： Ryuichi Ikematsu ,  Hiroyuki Takagi ,  Kazuo Takagi ,  Zhenlong Cui

发明人： Ryuichi Ikematsu ,  Hiroyuki Takagi ,  Kazuo Takagi ,  Zhenlong Cui

IPC分类号： G06F11/30

CPC分类号： H04L43/0847 ,  H04L43/067

摘要： An exemplary object of the present invention lies in a point of providing a technology capable of measuring a transmission quality of an Ethernet network in order to utilize Ethernet as carrier-grade communication. The present invention includes an error bit number measurer for measuring the number of error bits that have occurred for a frame of Ethernet, being a target of monitoring, within a monitoring period, a transmitted bit number measurer for measuring the number of total transmitted bits of Ethernet frames that a device facing it has transmitted within the foregoing monitoring period, and a bit error rate operator for obtaining a bit error rate of a transmission path by employing a measurement result by the foregoing error bit number measurer and the foregoing transmitted bit number measurer.

摘要翻译： 本发明的示例性目的在于提供能够测量以太网的传输质量以便将以太网用作电信级通信的技术。 本发明包括一个错误位数测量器，用于测量在监视周期内作为监视目标的以太网帧发生的错误位数，发送位数测量器，用于测量总发送位数 面向其的设备在上述监视周期内已经发送的以太网帧，以及通过采用上述错误比特数测量器和上述发送的比特数测量器的测量结果来获得传输路径的误码率的误码率算子 。

公开(公告)号：US07646789B2

公开(公告)日：2010-01-12

申请号：US10352114

申请日：2003-01-28

申请人： Masaki Umayabashi ,  Satomi Shioiri ,  Kazuo Takagi ,  Makoto Shibutani

发明人： Masaki Umayabashi ,  Satomi Shioiri ,  Kazuo Takagi ,  Makoto Shibutani

IPC分类号： H04J3/16

CPC分类号： H04L25/4908 ,  H04L7/041 ,  H04L7/046 ,  H04L12/2856 ,  H04L12/2885 ,  H04L12/413 ,  H04Q11/0067

摘要： In a communication system in which a plurality of communication terminals sequentially transfer data to a server during the respective transmission permissible periods assigned to the respective communication terminals, the communication terminal transfers a preamble for synchronization to the server at a time of starting the transmission permissible period, converts a data frame for every 8 bits into every 10 bit-code, and transmits to the server, the signal string with a code indicating the head added there, during the transmission permissible period, and turns a communication to the server into a zero signal state, during a period other than the transmission permissible period, while the server establishes a synchronization by reading the preamble for synchronization inserted into the signal string received from each of the communication terminals, converts a portion of the zero signal state of the signal string into a predetermined special code string, and inversely transforms the received signal string into the data frame before the coding.

摘要翻译： 在其中多个通信终端在分配给各个通信终端的各个传输允许期间内顺序地将数据传送到服务器的通信系统中，通信终端在启动传输允许周期时将服务器前同步码传送到服务器 将每8位的数据帧转换为每10位代码，并在发送允许期间向服务器发送具有指示添加到其中的头的代码的信号串，并将与服务器的通信转换为零 信号状态，在传输允许期间以外的时段期间，当服务器通过读取插入到从每个通信终端接收的信号串中的同步的前同步码来建立同步时，转换信号串的零信号状态的一部分 成为预定的特殊代码串，并反向转换 在编码之前将数据帧接收到数据帧中。

公开(公告)号：US20090305708A1

公开(公告)日：2009-12-10

申请号：US12481898

申请日：2009-06-10

申请人： Junichiro Matsui ,  Kazuo Takagi ,  Hideaki Tani

发明人： Junichiro Matsui ,  Kazuo Takagi ,  Hideaki Tani

IPC分类号： H04W40/00 ,  H04M1/00

CPC分类号： H04W76/12 ,  H04W88/04

摘要： A mobile terminal includes a mobile phone function unit, a storing unit, a communication control unit, and a store-and-forward multihop communication function unit. The mobile phone function unit confirms status of connection with a mobile base station and exchanges information with the mobile base station when the status of connection is a connection state. The storing unit stores information received and generated by the mobile phone function unit. The communication control unit receives connection information including the status of connection from the mobile phone function unit and generates a control signal when the connection information indicates a disconnection state. The store-and-forward multihop communication function unit builds a first session with a first mobile terminal after starting in response to the control signal, stores information received from the first mobile terminal and generated information in the storing unit, transmits information stored in the storing unit after building a second session with a second mobile terminal, and stores information received from the second mobile terminal in the storing unit.

摘要翻译： 移动终端包括移动电话功能单元，存储单元，通信控制单元和存储转发多跳通信功能单元。 当连接状态为连接状态时，移动电话功能单元确认与移动基站的连接状态，并与移动基站交换信息。 存储单元存储由移动电话功能单元接收和生成的信息。 所述通信控制单元从所述移动电话功能单元接收包括连接状态的连接信息，并且当所述连接信息指示断开状态时，生成控制信号。 存储转发多跳通信功能单元在响应于控制信号开始之后与第一移动终端建立第一会话，将从第一移动终端接收的信息和生成的信息存储在存储单元中，发送存储在存储中的信息 在与第二移动终端建立第二会话之后，将从第二移动终端接收的信息存储在存储单元中。

公开(公告)号：US20090052317A1

公开(公告)日：2009-02-26

申请号：US11887289

申请日：2006-03-31

申请人： Kazuo Takagi ,  Masahiro Sakauchi ,  Daisaku Ogasahara

发明人： Kazuo Takagi ,  Masahiro Sakauchi ,  Daisaku Ogasahara

IPC分类号： H04L12/24 ,  H04L12/28

CPC分类号： H04L41/0654 ,  H04L41/12

摘要： In a multi-ring network with a plurality of rings to which RPR is applied connected, high-speed failure recovery is enabled when a failure occurs between the rings. The contact nodes 700-1 and 700-3 connected to the living inter-link 505 periodically transmit and receive a KeepAlive signal to/from each other. Then, when a KeepAlive signal fails to arrive for a fixed time period, determination is made that the inter-link 505 develops a fault to broadcast-transmit an inter-link failure notification RPR-MAC frame indicative of failure occurrence on the inter-link to each node. A contact node as a transmission source of the inter-link failure notification RPR-MAC frame and each node having received the inter-link failure notification RPR-MAC frame immediately flush learning contents of their own learning data bases. A contact node connected to the spare inter-link 506 switches the spare inter-link 506 to a forwarding state.

摘要翻译： 在连接有RPR的多个环的多环网络中，在环之间发生故障时，能够进行高速故障恢复。 连接到生活链路505的接触节点700-1和700-3周期性地向彼此发送和接收KeepAlive信号。 然后，当KeepAlive信号在固定时间段内不能到达时，确定链路间链路505发生故障以广播发送指示链路间故障发生的链路间故障通知RPR-MAC帧 到每个节点。 作为链路间故障通知RPR-MAC帧的发送源的接触节点和已经接收到链路间故障通知RPR-MAC帧的每个节点立即刷新其自己的学习数据库的学习内容。 连接到备用链路间506的联系节点将备用链路间506切换到转发状态。

公开(公告)号：US20070171836A1

公开(公告)日：2007-07-26

申请号：US11625687

申请日：2007-01-22

申请人： Hideo Yoshimi ,  Nobuyuki Enomoto ,  Chinryuu Sai ,  Kazuo Takagi ,  Atsushi Iwata

发明人： Hideo Yoshimi ,  Nobuyuki Enomoto ,  Chinryuu Sai ,  Kazuo Takagi ,  Atsushi Iwata

IPC分类号： H04J1/16 ,  H04J3/14

CPC分类号： H04L61/2575 ,  H04L29/1249 ,  H04L29/12528

摘要： An object of the present invention is to provide a technology capable of estimating header conversion applied in a network by collecting information required in the estimation, without introducing a special-purpose server directed to estimate header conversion applied in the network. The present invention provides a system for estimating information about apparatuses on a network using an error message or control message sent in response to a transmitted packet as stipulated by a communication protocol to estimate information about apparatuses on the network.

摘要翻译： 本发明的目的是提供一种能够通过收集估计中所需的信息来估计在网络中应用的报头转换的技术，而不引入针对网络中应用的估计报头转换的专用服务器。 本发明提供一种用于使用响应于由通信协议规定的发送分组发送的错误消息或控制消息来估计关于网络上的设备的信息的系统，以估计关于网络上的设备的信息。

公开(公告)号：US20060193325A1

公开(公告)日：2006-08-31

申请号：US11414415

申请日：2006-05-01

申请人： Kazuo Takagi ,  Naoya Henmi ,  Shinobu Sasaki ,  Kurenai Murakami ,  Motoo Nishihara ,  Yoshinori Rokugou

发明人： Kazuo Takagi ,  Naoya Henmi ,  Shinobu Sasaki ,  Kurenai Murakami ,  Motoo Nishihara ,  Yoshinori Rokugou

IPC分类号： H04L12/28

CPC分类号： H04L1/0061 ,  H04L1/0072 ,  H04L1/0079 ,  H04L1/0085

摘要： A storage circuit defines a first field for storing first header bits of a first payload signal of a first data unit, a second field, and a third field for storing the first payload signal. The first header bits are equal in number to second header bits of a second payload signal of a second data unit. A division circuit divides the first header bits by a generator polynomial to produce a first error check code. The same generator polynomial is used to divide the second header bits to produce a second error check code. A remainder of division of hypothetical header bits by the generator polynomial is summed to the first error check code to produce a sum which is inserted into the second field of the storage circuit. The hypothetical header bits are greater in number than a total number of bits in the first and second fields, so that the first and second data units can be distinguished from each other by different error check results of the first and second data units.