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1. 发明授权

US06462491B1 Position sensorless motor control apparatus 有权
标题翻译：无位置传感器电机控制装置
公开(公告)号：US06462491B1
公开(公告)日：2002-10-08
申请号：US09491382
申请日：2000-01-26
申请人： Tomoyuki Iijima , Kazushige Narazaki , Toru Tazawa , Yukinori Maruyama
发明人： Tomoyuki Iijima , Kazushige Narazaki , Toru Tazawa , Yukinori Maruyama
IPC分类号： H02P618
CPC分类号： H02P9/18 , H02P2203/05
摘要： A position sensorless motor control apparatus is provided that achieves high resolution and high accuracy angle estimation, achieves angle estimation even in the presence of phase voltage saturation, and achieves high accuracy angle estimation even when a back electromotive force constant changes. An angle estimating unit which generates estimated rotor angle comprises: an estimation phase selecting unit for selecting an estimation phase designating the stator winding phase to be used for the generation of the estimated angle; a deviation generating unit for generating, based on the estimated angle and phase voltage value, a deviation relative to a model expressed by a phase voltage equation of the estimation phase; an angle correcting unit for correcting the estimated angle so that the deviation converges to zero; and an estimated coefficient value correcting unit for correcting an estimated coefficient value which is the estimated value of a coefficient in the phase voltage equation.
摘要翻译：提供一种实现高分辨率和高精度角度估计的位置无传感器电动机控制装置，即使在存在相电压饱和的情况下也能够进行角度估计，并且即使当反电动势常数改变时也能够实现高精度角度估计。产生估计转子角度的角度估计单元包括：估计相位选择单元，用于选择用于产生估计角度的定子绕组相位的估计阶段; 偏差产生单元，用于基于估计的角度和相位电压值，生成相对于由所述估计阶段的相电压方程表示的模型的偏差; 角度校正单元，用于校正所述估计角度，使得所述偏差收敛到零; 以及估计系数值校正单元，用于校正作为相电压方程式中的系数的估计值的估计系数值。

2. 发明申请

US20070022468A1 Packet transmission equipment and packet transmission system 审中-公开
标题翻译：分组传输设备和分组传输系统
公开(公告)号：US20070022468A1
公开(公告)日：2007-01-25
申请号：US11455804
申请日：2006-06-20
申请人： Tomoyuki Iijima , Kenichi Sakamoto , Kunihiko Toumura
发明人： Tomoyuki Iijima , Kenichi Sakamoto , Kunihiko Toumura
IPC分类号： H04L9/32
CPC分类号： H04L63/0209 , H04L63/105 , H04L63/1416 , H04L63/145
摘要： Traffic flowing through packet transmission equipment comes in countless variations ranging from traffic from harmless general users, to PC virus-infected users, and users with harmful intent. Transferring all of this traffic together through a module for monitoring causes a great loss in throughput and is an extremely inefficient way to handle general user traffic. After checking the module processing results, the system administrator can resolve this situation by changing each user's transfer module but making this setting manually is unwieldy and lacks flexibility. A security level can be set on table in the platform module linking each user to the destination application module. By dynamically changing this security level according to processing results in each module, each user's destination application module can be changed smoothly and flexibly.
摘要翻译：流经分组传输设备的流量无数变化，从无害普通用户流量到PC病毒感染用户和有意图用户。通过用于监视的模块将所有这些流量传输到一起会导致吞吐量的巨大损失，并且是处理一般用户流量的非常低效的方式。检查模块处理结果后，系统管理员可以通过更改每个用户的传输模块来解决这种情况，但手动进行此设置是笨重的，缺乏灵活性。可以在将每个用户连接到目标应用程序模块的平台模块中的表上设置安全级别。通过根据每个模块中的处理结果动态地更改此安全级别，可以平滑灵活地更改每个用户的目标应用程序模块。

3. 发明申请

US20130073706A1 NETWORK MANAGEMENT SYSTEM, AND NETWORK DEVICE 审中-公开
标题翻译：网络管理系统和网络设备
公开(公告)号：US20130073706A1
公开(公告)日：2013-03-21
申请号：US13572947
申请日：2012-08-13
申请人： Tomoyuki Iijima , Hidemitsu Higuchi
发明人： Tomoyuki Iijima , Hidemitsu Higuchi
IPC分类号： G06F15/173
CPC分类号： H04L67/18 , H04L12/6418
摘要： There are provided a virtual network management system and a network device that can identify the topology of a virtual network, estimate a virtual network to which various computing devices belong and the locations of the computing devices, and present the virtual network and the locations to a network administrator. In a network management device, the configurations of packet transmission devices and a MAC learning table are managed. A virtual network to which given virtual computing units are connected is identified from information about a virtual packet transmission device identifier, a VLAN identifier, a MAC address, and a packet transmission port number acquired from the MAC learning table. The locations of the virtual computing units in the virtual network are estimated, and the topology is drawn on the screen of a display.
摘要翻译：提供了虚拟网络管理系统和网络设备，其可以识别虚拟网络的拓扑，估计各种计算设备所属的虚拟网络和计算设备的位置，并将虚拟网络和位置呈现给网络管理员。在网络管理装置中，管理分组发送装置和MAC学习表的结构。根据从MAC学习表获取的关于虚拟分组传输设备标识符，VLAN标识符，MAC地址和分组传输端口号的信息，识别给定虚拟计算单元连接到的虚拟网络。估计虚拟计算单元在虚拟网络中的位置，并且在显示器的屏幕上绘制拓扑。

4. 发明申请

US20070160073A1 Packet communications unit 有权
标题翻译：分组通信单元
公开(公告)号：US20070160073A1
公开(公告)日：2007-07-12
申请号：US11500437
申请日：2006-08-08
申请人： Kunihiko Toumura , Tomoyuki Iijima
发明人： Kunihiko Toumura , Tomoyuki Iijima
IPC分类号： H04L12/56
CPC分类号： H04L43/022 , H04L43/028
摘要： To analyze traffic at an application level, a stream according to TCP or SCTP is required to be reconstructed and to be analyzed. When a packet is transferred to analyzing equipment using a port mirroring function with which a router and a switch are provided, transferred traffic volume increases and exceeds the throughput of the analyzing equipment. As only a part of packets configuring a stream is transferred to the analyzing equipment in transfer to the analyzing equipment using a packet sampling function, analysis at the application level is impossible. To solve the problem, when a packet communication unit recognizes a stream start packet, samples a stream initiated by the packet on a condition and at a rate respectively determined beforehand and generates a condition for copying the packet based upon information of both ends of the stream included in the packet, packets sampled in units of stream can be transferred to the analyzing equipment.
摘要翻译：为了在应用层级分析流量，需要对根据TCP或SCTP的流进行重构和分析。当使用提供路由器和交换机的端口镜像功能将数据包传输到分析设备时，传输的流量增加并超过分析设备的吞吐量。由于只有配置流的数据包的一部分传输到分析设备，才能使用数据包采样功能传送到分析设备，因此在应用层面上的分析是不可能的。为了解决该问题，当分组通信单元识别流起始分组时，以预先分别确定的条件和速率对由分组发起的流进行采样，并且基于流的两端的信息生成用于复制分组的条件分组中包含的数据包可以将流量单位采样的数据包传送到分析设备。

5. 发明授权

US08681657B2 Network management system and management computer 失效
标题翻译：网络管理系统和管理电脑
公开(公告)号：US08681657B2
公开(公告)日：2014-03-25
申请号：US13486646
申请日：2012-06-01
申请人： Hidemitsu Higuchi , Tomoyuki Iijima , Makoto Kitani
发明人： Hidemitsu Higuchi , Tomoyuki Iijima , Makoto Kitani
IPC分类号： H04L12/28
CPC分类号： H04L12/4641 , H04L41/0806
摘要： Provided is a network management system for managing a plurality of packet relay devices, the network management system comprising: the plurality of packet relay devices constituting networks; and a display device for displaying configurations of the networks, in a case where it is determined that a virtual packet relay device identifier of the virtual packet relay device that is assigned a second-network identifier associated with the extracted second-network identifier is registered in a first-network configuration table, a first-work identifying module is configured to associate a first-network identifier that is associated with the virtual packet relay device identifier with the obtained configuration information, and register the association between the first-network identifier and the obtained configuration information in the first-network configuration table.
摘要翻译：提供一种用于管理多个分组中继设备的网络管理系统，所述网络管理系统包括：构成网络的所述多个分组中继设备; 以及显示设备，用于显示网络的配置，在确定被分配了与所提取的第二网络标识符相关联的第二网络标识符的虚拟分组中继设备的虚拟分组中继设备标识符被登记在的情况下第一网络配置表，第一工作识别模块被配置为将与虚拟分组中继设备标识符相关联的第一网络标识符与所获得的配置信息相关联，并且注册第一网络标识符与第一网络标识符之间的关联获得第一网络配置表中的配置信息。

6. 发明授权

US08149705B2 Packet communications unit 有权
标题翻译：分组通信单元
公开(公告)号：US08149705B2
公开(公告)日：2012-04-03
申请号：US11500437
申请日：2006-08-08
申请人： Kunihiko Toumura , Tomoyuki Iijima
发明人： Kunihiko Toumura , Tomoyuki Iijima
IPC分类号： G01R31/08
CPC分类号： H04L43/022 , H04L43/028
摘要： To analyze traffic at an application level, a stream according to TCP or SCTP is required to be reconstructed and to be analyzed. When a packet is transferred to analyzing equipment using a port mirroring function with which a router and a switch are provided, transferred traffic volume increases and exceeds the throughput of the analyzing equipment. As only a part of packets configuring a stream is transferred to the analyzing equipment in transfer to the analyzing equipment using a packet sampling function, analysis at the application level is impossible. To solve the problem, when a packet communication unit recognizes a stream start packet, samples a stream initiated by the packet on a condition and at a rate respectively determined beforehand and generates a condition for copying the packet based upon information of both ends of the stream included in the packet, packets sampled in units of stream can be transferred to the analyzing equipment.
摘要翻译：为了在应用层级分析流量，需要对根据TCP或SCTP的流进行重构和分析。当使用提供路由器和交换机的端口镜像功能将数据包传输到分析设备时，传输的流量增加并超过分析设备的吞吐量。由于只有配置流的数据包的一部分传输到分析设备，才能使用数据包采样功能传送到分析设备，因此在应用层面上的分析是不可能的。为了解决该问题，当分组通信单元识别流起始分组时，以预先分别确定的条件和速率对由分组发起的流进行采样，并且基于流的两端的信息生成用于复制分组的条件分组中包含的数据包可以将流量单位采样的数据包传送到分析设备。

7. 发明授权

US07567505B2 VRRP technology keeping VR confidentiality 失效
标题翻译： VRRP技术保持VR的保密性
公开(公告)号：US07567505B2
公开(公告)日：2009-07-28
申请号：US10767432
申请日：2004-01-30
申请人： Tomoyuki Iijima , Masatoshi Takihiro , Masayuki Hino
发明人： Tomoyuki Iijima , Masatoshi Takihiro , Masayuki Hino
IPC分类号： G01R31/08 , H04J1/16 , H04L12/26
CPC分类号： H04L45/00 , H04L45/586
摘要： In a packet transmission router used in a VRRP (Virtual Router Redundancy Protocol) network having a VR (Virtual Router) function, when virtual routers VR are realized by the VRRP, the routing control information that each VR manages is prevented from being mixed with that of other VR. When an active packet transmission router transmits a VRRP packet to a standby packet transmission router, an identifier indicating which virtual router belongs to the VRRP packet is added to the VRRP packet before the transmission of the VRRP packet.
摘要翻译：在具有VR（Virtual Router）功能的VRRP（Virtual Router Redundancy Protocol，虚拟路由冗余协议）网络中使用的分组传输路由器中，当VRRP实现虚拟路由器VR时，防止每个VR管理的路由控制信息与该VRRP 的其他VR。当主动分组传输路由器向备用分组传输路由器发送VRRP报文时，在发送VRRP报文前，将VRRP报文中添加了表示哪个虚拟路由器属于VRRP报文的标识符。

8. 发明授权

US08516283B2 Network management apparatus 有权
标题翻译：网管系统
公开(公告)号：US08516283B2
公开(公告)日：2013-08-20
申请号：US12903876
申请日：2010-10-13
申请人： Tomoyuki Iijima , Hiroyasu Kimura , Takeshi Aimoto
发明人： Tomoyuki Iijima , Hiroyasu Kimura , Takeshi Aimoto
IPC分类号： G06F1/26
CPC分类号： G06F1/3203 , G06F1/3209 , H04L41/0213 , H04L41/0833 , H04L41/0893 , H04L67/125
摘要： A network management/apparatus connected to a plurality of packet relay apparatuses constituting a group through a network includes an energy saving level calculation unit for calculating an energy saving level of each of the packet relay apparatuses on the basis of a CPU usage ratio of the packet relay apparatus managed or a difference between the present energy saving level and the energy saving level of minimum guarantee of the packet relay apparatus, and an energy saving function setting unit for setting an energy saving function of the packet relay apparatuses on the basis of the energy saving level calculated by the energy saving level calculation unit.
摘要翻译：通过网络连接到构成组的多个分组中继设备的网络管理/装置包括：节能水平计算单元，用于根据分组的CPU使用率来计算每个分组中继装置的节能水平管理的中继设备或者分组中继设备的当前节能水平与最小保证的节能水平之间的差异;以及节能功能设置单元，用于基于能量来设置分组中继设备的节能功能由节能水平计算单元计算的节能水平。

9. 发明授权

US07289431B2 Packet transmission method 失效
标题翻译：分组传输方式
公开(公告)号：US07289431B2
公开(公告)日：2007-10-30
申请号：US10197413
申请日：2002-07-18
申请人： Tomoyuki Iijima
发明人： Tomoyuki Iijima
IPC分类号： G01R31/08 , H04L12/28 , H04L12/56
CPC分类号： H04L45/00 , H04L45/22 , H04L45/28 , H04L45/50 , H04L47/2433 , H04L69/14 , H04L69/22 , H04L69/40
摘要： A packet transmission method is provided when there occurs a double fault in working paths of a 1:N configuration and when packets thereon are to be bypassed from the working paths to a recovery path, the packet can be transferred to the recovery path while retaining packet priority classes or VPNs on the recovery path. If faults occur in both a first line on which is set a first label-switched path and a second line on which is set a second label-switched path, packets which should flow respectively through the first and second label-switched paths are bypassed to the recovery path. At this time, different labels are affixed to the packets such that the thus-labeled packets are transferred to the recovery path.
摘要翻译：当发生1：N配置的工作路径出现双重故障时，并且当其上的数据包从工作路径旁路到恢复路径时，提供分组传输方法，该分组可以被传送到恢复路径，同时保留分组恢复路径上的优先级或VPN。如果在设置第一标签交换路径的第一行和其上设置有第二标签交换路径的第二行上发生故障，则分别通过第一和第二标签交换路径的分组被旁路到恢复路径。此时，不同的标签被附加到分组，使得如此标记的分组被传送到恢复路径。

10. 发明申请

US20050117598A1 VRRP technology keeping VR confidentiality 失效
标题翻译： VRRP技术保持VR的保密性
公开(公告)号：US20050117598A1
公开(公告)日：2005-06-02
申请号：US10767432
申请日：2004-01-30
申请人： Tomoyuki Iijima , Masatoshi Takihiro , Masayuki Hino
发明人： Tomoyuki Iijima , Masatoshi Takihiro , Masayuki Hino
IPC分类号： H04L12/70 , H04L12/28 , H04L12/46 , H04L12/713
CPC分类号： H04L45/00 , H04L45/586
摘要： In a packet transmission router used in a VRRP (Virtual Router Redundancy Protocol) network having a VR (Virtual Router) function, when virtual routers VR are realized by the VRRP, the routing control information that each VR manages is prevented from being mixed with that of other VR. When an active packet transmission router transmits a VRRP packet to a standby packet transmission router, an identifier indicating which virtual router belongs to the VRRP packet is added to the VRRP packet before the transmission of the VRRP packet.
摘要翻译：在具有VR（Virtual Router）功能的VRRP（Virtual Router Redundancy Protocol，虚拟路由冗余协议）网络中使用的分组传输路由器中，当VRRP实现虚拟路由器VR时，防止每个VR管理的路由控制信息与该VRRP 的其他VR。当主动分组传输路由器向备用分组传输路由器发送VRRP报文时，在发送VRRP报文前，将VRRP报文中添加了表示哪个虚拟路由器属于VRRP报文的标识符。

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