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1. 发明申请

US20100196017A1 DISTORTION COMPENSATING APPARATUS, OPTICAL RECEIVING APPARATUS, AND OPTICAL TRANSMITTING AND RECEIVING SYSTEM 有权
标题翻译：失灵补偿装置，光接收装置和光传输和接收系统
公开(公告)号：US20100196017A1
公开(公告)日：2010-08-05
申请号：US12697202
申请日：2010-01-29
申请人： Takahito TANIMURA , Takeshi Hoshida , Hisao Nakashima , Kazunari Shiota , Kiichi Sugitani
发明人： Takahito TANIMURA , Takeshi Hoshida , Hisao Nakashima , Kazunari Shiota , Kiichi Sugitani
IPC分类号： H04B10/00 , H04B1/10 , H04B10/06
CPC分类号： H04B10/6971 , H04B10/25133 , H04B10/616 , H04B10/6161 , H04B2210/252
摘要： A distortion compensating apparatus which compensates for distortion in a waveform of a received light signal through a digital signal processing includes a plurality of fixed amount compensators which compensate for the distortion in the waveform at respective given compensating amounts. The combination of operating states of the plurality of fixed amount compensators is changed by on/off switching of each of the plurality of fixed amount compensators, and the plurality of fixed amount compensators are cascaded.
摘要翻译：通过数字信号处理补偿接收的光信号的波形中的失真的失真补偿装置包括多个固定量补偿器，其补偿各个给定补偿量处的波形失真。通过多个固定量补偿器中的每一个的开/关切换来改变多个固定量补偿器的操作状态的组合，并且多个固定量补偿器被级联。

2. 发明申请

US20060013141A1 Loop frame detecting device and method for detecting loop frame 审中-公开
标题翻译：环路帧检测装置及其检测方法
公开(公告)号：US20060013141A1
公开(公告)日：2006-01-19
申请号：US11024519
申请日：2004-12-29
申请人： Ryoichi Mutoh , Tetsuya Nishi , Kiichi Sugitani
发明人： Ryoichi Mutoh , Tetsuya Nishi , Kiichi Sugitani
IPC分类号： G01R31/08 , H04L12/28
CPC分类号： H04L45/00 , H04L12/462 , H04L43/00 , H04L45/18 , H04L45/48
摘要： A loop frame detecting devise includes a frame receiving and transmitting unit and a loop detecting unit. The frame receiving and transmitting unit receives and transmits the Layer 2 frame. The loop detecting unit monitors contents of the frame that is received or to be transmitted by the frame receiving and transmitting unit, determines whether the frame is a loop frame that circulates in the Layer 2 network, detects the loop frame, and minimizes a loop failure.
摘要翻译：环路帧检测装置包括帧接收和发送单元和环路检测单元。帧接收发送单元接收并发送第2层帧。环路检测单元监视由帧接收和发送单元接收或要发送的帧的内容，确定帧是否是在第2层网络中循环的循环帧，检测环路帧，并使环路故障最小化。

3. 发明授权

US08447190B2 Distortion compensating apparatus, optical receiving apparatus, and optical transmitting and receiving system 有权
标题翻译：失真补偿装置，光接收装置和光发送和接收系统
公开(公告)号：US08447190B2
公开(公告)日：2013-05-21
申请号：US12697202
申请日：2010-01-29
申请人： Takahito Tanimura , Takeshi Hoshida , Hisao Nakashima , Kazunari Shiota , Kiichi Sugitani
发明人： Takahito Tanimura , Takeshi Hoshida , Hisao Nakashima , Kazunari Shiota , Kiichi Sugitani
IPC分类号： H04B10/06 , H04B10/08 , H04B10/12 , H04B10/00 , H04J14/02
CPC分类号： H04B10/6971 , H04B10/25133 , H04B10/616 , H04B10/6161 , H04B2210/252
摘要： A distortion compensating apparatus which compensates for distortion in a waveform of a received light signal through a digital signal processing includes a plurality of fixed amount compensators which compensate for the distortion in the waveform at respective given compensating amounts. The combination of operating states of the plurality of fixed amount compensators is changed by on/off switching of each of the plurality of fixed amount compensators, and the plurality of fixed amount compensators are cascaded.
摘要翻译：通过数字信号处理补偿接收的光信号的波形中的失真的失真补偿装置包括多个固定量补偿器，其补偿各个给定补偿量处的波形失真。通过多个固定量补偿器中的每一个的开/关切换来改变多个固定量补偿器的操作状态的组合，并且多个固定量补偿器被级联。

4. 发明申请

US20060209699A1 Device and method for network monitoring 失效
公开(公告)号：US20060209699A1
公开(公告)日：2006-09-21
申请号：US11189400
申请日：2005-07-26
申请人： Nobuyuki Tamura , Tomonori Gotoh , Kazunari Shiota , Kiichi Sugitani , Ryota Komatsu
发明人： Nobuyuki Tamura , Tomonori Gotoh , Kazunari Shiota , Kiichi Sugitani , Ryota Komatsu
IPC分类号： G01R31/08
CPC分类号： H04L43/0811 , H04L41/046 , H04L43/0823 , H04L43/16
摘要： A network monitoring device that monitors a network state, includes a receiving unit that receives a packet passing through the network; a processing unit that performs analysis of the network state with respect to the packet received; and a determining unit that determines whether a failure has occurred in the network, based on the result obtained by the processing unit.

5. 发明申请

US20100239269A1 PHASE SYNCHRONIZATION APPARATUS AND DIGITAL COHERENT LIGHT RECEIVER 有权
标题翻译：相位同步装置和数字相干光接收器
公开(公告)号：US20100239269A1
公开(公告)日：2010-09-23
申请号：US12708859
申请日：2010-02-19
申请人： Kiichi SUGITANI , Kazunari Shiota , Yuji Ishii , Hisao Nakashima
发明人： Kiichi SUGITANI , Kazunari Shiota , Yuji Ishii , Hisao Nakashima
IPC分类号： H04L7/02 , H04B10/06
CPC分类号： H04B10/61
摘要： A phase synchronization method uses a removal path for removing an error component contained in an input signal and a delay addition path for adding a delay corresponding to a processing time period taken to remove the error component in the removal path. The removal path includes an averaging section. The averaging section includes a shift register and an obtaining unit. The shift register stores as many data as the maximum number of data to be averaged and successively receives processing data from which the error component has been extracted in the removal path. The obtaining unit obtains, among the successive processing data input to the shift register, as many processing data as the number of data to be averaged from a position near the center toward both ends in the shift register.
摘要翻译：相位同步方法使用去除包含在输入信号中的误差分量的去除路径和用于增加与去除去除路径中的误差分量所花费的处理时间相对应的延迟的延迟相加路径。去除路径包括平均部分。平均部分包括移位寄存器和获取单元。移位寄存器存储与要平均的数据的最大数量一样多的数据，并且连续地接收在删除路径中从其中提取了错误分量的处理数据。获取单元从输入到移位寄存器的连续处理数据中，从移位寄存器中的中心附近的位置到两端的位置获得与要平均化的数据数量相同的处理数据。

6. 发明授权

US07577098B2 Device and method for network monitoring 失效
标题翻译：网络监控的设备和方法
公开(公告)号：US07577098B2
公开(公告)日：2009-08-18
申请号：US11189400
申请日：2005-07-26
申请人： Nobuyuki Tamura , Tomonori Gotoh , Kazunari Shiota , Kiichi Sugitani , Ryota Komatsu
发明人： Nobuyuki Tamura , Tomonori Gotoh , Kazunari Shiota , Kiichi Sugitani , Ryota Komatsu
IPC分类号： H04J3/14
CPC分类号： H04L43/0811 , H04L41/046 , H04L43/0823 , H04L43/16
摘要： A network monitoring device that monitors a network state, includes a receiving unit that receives a packet passing through the network; a processing unit that performs analysis of the network state with respect to the packet received; and a determining unit that determines whether a failure has occurred in the network, based on the result obtained by the processing unit.
摘要翻译：监视网络状态的网络监视装置包括接收通过网络的分组的接收单元; 处理单元，其执行关于所接收的分组的网络状态的分析; 以及确定单元，其基于由所述处理单元获得的结果来确定网络中是否发生故障。

7. 发明授权

US08553825B2 Phase synchronization apparatus and digital coherent light receiver 有权
标题翻译：相位同步装置和数字相干光接收机
公开(公告)号：US08553825B2
公开(公告)日：2013-10-08
申请号：US12708859
申请日：2010-02-19
申请人： Kiichi Sugitani , Kazunari Shiota , Yuji Ishii , Hisao Nakashima
发明人： Kiichi Sugitani , Kazunari Shiota , Yuji Ishii , Hisao Nakashima
IPC分类号： H04L7/00
CPC分类号： H04B10/61
摘要： A phase synchronization method uses a removal path for removing an error component contained in an input signal and a delay addition path for adding a delay corresponding to a processing time period taken to remove the error component in the removal path. The removal path includes an averaging section. The averaging section includes a shift register and an obtaining unit. The shift register stores as many data as the maximum number of data to be averaged and successively receives processing data from which the error component has been extracted in the removal path. The obtaining unit obtains, among the successive processing data input to the shift register, as many processing data as the number of data to be averaged from a position near the center toward both ends in the shift register.
摘要翻译：相位同步方法使用去除包含在输入信号中的误差分量的去除路径和用于增加与去除去除路径中的误差分量所花费的处理时间相对应的延迟的延迟相加路径。去除路径包括平均部分。平均部分包括移位寄存器和获取单元。移位寄存器存储与要平均的数据的最大数量一样多的数据，并且连续地接收在删除路径中从其中提取了错误分量的处理数据。获取单元从输入到移位寄存器的连续处理数据中，从移位寄存器中的中心附近的位置到两端的位置获得与要平均化的数据数量相同的处理数据。

8. 发明授权

US07496055B2 Layer 2 loop detection system 有权
标题翻译：二层环路检测系统
公开(公告)号：US07496055B2
公开(公告)日：2009-02-24
申请号：US10955961
申请日：2004-09-30
申请人： Kiichi Sugitani , Ryouichi Mutoh , Tetsuya Nishi
发明人： Kiichi Sugitani , Ryouichi Mutoh , Tetsuya Nishi
IPC分类号： H04L12/28
CPC分类号： H04L41/06 , H04L12/462 , H04L41/0213 , H04L41/046 , H04L41/12 , H04L43/10 , H04L45/00 , H04L45/18
摘要： A layer 2 loop detection apparatus includes a unit recognizing a topology of an L2 network at normal time by collecting MIB information including information concerning ports of a plurality of L2 switches from the plurality of L2 switches through SNMP communication; a unit discriminating, based on a topology recognition processing, a blocking port for traffic blocking and a disable port under a port disable state each set under a Spanning Tree Protocol (STP); a unit setting each of the blocking port and the disable port as a monitoring point and periodically monitoring a state thereof; and a unit performing detection of an L2 loop by re-collecting a part of the MIB information from the plurality of L2 switches through SNMP communication and re-recognizing the topology of the L2 network, the detection of the L2 loop detection being triggered by a change of a state of one of the blocking port and the disable port.
摘要翻译：层2环路检测装置包括通过SNMP通信收集包括与多个L2交换机的端口有关的信息的MIB信息，正常时识别L2网络拓扑的单元; 基于拓扑识别处理，根据生成树协议（STP）在每个端口禁用状态下识别用于流量阻塞的阻塞端口和禁用端口的单元; 将阻塞端口和禁用端口中的每一个设置为监视点并周期性地监视其状态的单元; 以及通过从多个L2交换机通过SNMP通信重新收集一部分MIB信息并重新识别L2网络的拓扑来执行L2环路检测的单元，由L2的网络触发的L2环路检测的检测更改阻塞端口和禁用端口之一的状态。

9. 发明申请

US20050220036A1 Layer 2 loop detection system 有权
标题翻译：二层环路检测系统
公开(公告)号：US20050220036A1
公开(公告)日：2005-10-06
申请号：US10955961
申请日：2004-09-30
申请人： Kiichi Sugitani , Ryouichi Mutoh , Tetsuya Nishi
发明人： Kiichi Sugitani , Ryouichi Mutoh , Tetsuya Nishi
IPC分类号： H04L12/24 , H04L12/26 , H04L12/44
CPC分类号： H04L41/06 , H04L12/462 , H04L41/0213 , H04L41/046 , H04L41/12 , H04L43/10 , H04L45/00 , H04L45/18
摘要： A layer 2 loop detection apparatus includes a unit recognizing a topology of an L2 network at normal time by collecting MIB information including information concerning ports of a plurality of L2 switches from the plurality of L2 switches through SNMP communication; a unit discriminating, based on a topology recognition processing, a blocking port for traffic blocking and a disable port under a port disable state each set under a Spanning Tree Protocol (STP); a unit setting each of the blocking port and the disable port as a monitoring point and periodically monitoring a state thereof; and a unit performing detection of an L2 loop by re-collecting a part of the MIB information from the plurality of L2 switches through SNMP communication and re-recognizing the topology of the L2 network, the detection of the L2 loop detection being triggered by a change of a state of one of the blocking port and the disable port.
摘要翻译：层2环路检测装置包括通过SNMP通信收集包括与多个L2交换机的端口有关的信息的MIB信息，正常时识别L2网络拓扑的单元; 基于拓扑识别处理，根据生成树协议（STP）在每个端口禁用状态下识别用于流量阻塞的阻塞端口和禁用端口的单元; 将阻塞端口和禁用端口中的每一个设置为监视点并周期性地监视其状态的单元; 以及通过从多个L2交换机通过SNMP通信重新收集一部分MIB信息并重新识别L2网络的拓扑来执行L2环路检测的单元，由L2的网络触发的L2环路检测的检测更改阻塞端口和禁用端口之一的状态。

10. 发明申请

US20050213875A1 Optical cross-connect device and method of optical communication control 审中-公开
标题翻译：光交叉设备及光通信控制方法
公开(公告)号：US20050213875A1
公开(公告)日：2005-09-29
申请号：US11137365
申请日：2005-05-26
申请人： Kiichi Sugitani , Satoshi Kuroyanagi
发明人： Kiichi Sugitani , Satoshi Kuroyanagi
IPC分类号： G03B17/00 , H04J14/00 , H04J14/02 , H04Q11/00
CPC分类号： H04J14/0295 , H04J14/0284 , H04J14/0294 , H04Q11/0005 , H04Q2011/0043
摘要： An optical cross-connect device, which has a presently-used optical cross-connect section and a preliminary optical cross-connect section, includes a switching unit. When a transmission path from a transmission node to a reception node is operating under normal conditions, the switching unit switches priority signals from the presently-used optical fiber at an input side from inside, outputs the priority signals to the presently-used optical fiber at an output side to the inside, switches the non-priority signals from the preliminary optical fiber at the input side from the inside, and outputs the non-priority signals to the preliminary optical fiber at the output side to the inside. When the transmission path is in trouble, the switching unit switches the priority signals from the preliminary optical fiber at the input side from the inside, and outputs the priority signals to the preliminary optical fiber at the output side to the inside.
摘要翻译：具有目前使用的光学交叉连接部分和预备光学交叉连接部分的光学交叉连接装置包括切换单元。当从发送节点到接收节点的传输路径在正常条件下工作时，切换单元从内部的输入侧切换来自当前使用的光纤的优先级信号，将优先级信号输出到当前使用的光纤输出侧向内侧切换来自内侧的输入侧的预备光纤的非优先信号，并将非优先信号输出到输出侧的预备光纤到内部。当传输路径出现故障时，切换单元将输入侧的预备光纤的优先信号从内部切换，并将输出侧的预备光纤的优先信号输出到内部。

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