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1. 发明授权

US07684697B2 Optical signal quality monitoring circuit and optical signal quality monitoring method 有权
标题翻译：光信号质量监控电路和光信号质量监控方法
公开(公告)号：US07684697B2
公开(公告)日：2010-03-23
申请号：US10585532
申请日：2005-06-03
申请人： Ippei Shake , Hidehiko Takara , Atsushi Taniguchi
发明人： Ippei Shake , Hidehiko Takara , Atsushi Taniguchi
IPC分类号： H04B10/08
CPC分类号： H04L1/20 , H04B10/07953
摘要： The present invention provides an optical signal quality monitoring circuit and an optical signal quality monitoring method for measuring correct optical signal quality parameters when a signal bit rate is changed. The optical signal quality monitoring circuit which samples and converts an electrical signal converted from an optical signal with a given repeated frequency f1 to digital sampling data through an analog to digital conversion, thereafter, evaluates an optical signal quality parameter of the optical signal by subjecting sampling data to electrical signal processing in an integrated circuit in which a signal processing function is programmed, receives a control signal notifying that the bit rate of the optical signal is changed, or detects that the bit rate of the optical signal is changed to correct optical the signal quality parameter of the optical signal corresponding to the signal bit rate of the optical signal which is changed.
摘要翻译：本发明提供一种光信号质量监测电路和光信号质量监测方法，用于在信号比特率改变时测量正确的光信号质量参数。光信号质量监测电路对从具有给定重复频率f1的光信号转换成的电信号通过模数转换进行数字采样数据进行采样和转换，此后通过对采样信号进行采样来评估光信号的光信号质量参数在其中对信号处理功能进行编程的集成电路中的电信号处理的数据接收通知光信号的比特率改变的控制信号，或者检测到光信号的比特率被改变以校正光信号对应于改变的光信号的信号比特率的光信号的信号质量参数。

2. 发明申请

US20080285970A1 Optical Signal Quality Monitoring Circuit and Optical Signal Quality Monitoring Method 有权
标题翻译：光信号质量监测电路和光信号质量监测方法
公开(公告)号：US20080285970A1
公开(公告)日：2008-11-20
申请号：US10585532
申请日：2005-06-03
申请人： Ippei Shake , Hidehiko Takara , Atsushi Taniguchi
发明人： Ippei Shake , Hidehiko Takara , Atsushi Taniguchi
IPC分类号： H04B10/08 , H04B10/00 , H04B17/00
CPC分类号： H04L1/20 , H04B10/07953
摘要： The present invention provides an optical signal quality monitoring circuit and an optical signal quality monitoring method for measuring correct optical signal quality parameters when a signal bit rate is changed. The optical signal quality monitoring circuit which samples and converts an electrical signal converted from an optical signal with a given repeated frequency f1 to digital sampling data through an analog to digital conversion, thereafter, evaluates an optical signal quality parameter of the optical signal by subjecting sampling data to electrical signal processing in an integrated circuit in which a signal processing function is programmed, receives a control signal notifying that the bit rate of the optical signal is changed, or detects that the bit rate of the optical signal is changed to correct optical the signal quality parameter of the optical signal corresponding to the signal bit rate of the optical signal which is changed.
摘要翻译：本发明提供一种光信号质量监测电路和光信号质量监测方法，用于在信号比特率改变时测量正确的光信号质量参数。此后，光信号质量监测电路通过模/数转换将具有给定重复频率f 1的光信号转换的电信号进行采样和转换为数字采样数据，此后评估光信号质量通过对其中对信号处理功能进行编程的集成电路中的采样数据进行电信号处理的光信号的参数，接收通知光信号的比特率改变的控制信号，或者检测到光信号被改变以校正对应于改变的光信号的信号比特率的光信号的信号质量参数。

3. 发明授权

US07079765B2 Optical wavelength division multiplex signal monitoring apparatus 有权
公开(公告)号：US07079765B2
公开(公告)日：2006-07-18
申请号：US10091575
申请日：2002-03-07
申请人： Ippei Shake , Hidehiko Takara
发明人： Ippei Shake , Hidehiko Takara
IPC分类号： H04B10/08 , H04B17/00
CPC分类号： H04J14/02 , H04B10/07953 , H04L7/0075
摘要： An optical signal quality degradation monitoring apparatus for monitoring an optical wavelength division multiplex signal is implemented in a small size. To monitor the optical signal quality degradation in the optical wavelength division multiplex signal by a configuration as simple as possible, the following configurations are used: A configuration using an optical wavelength division demultiplexer and a sampling clock generator to make one an electric signal processor; A configuration using an optical sampling pulse train generator, an optical multiplexer, a nonlinear optical medium, and an optical wavelength division demultiplexer to make one an electric signal processor; or a configuration using a selection wavelength control section, an optical wavelength selecting section, and a sampling clock generator to make one electric signal.

4. 发明授权

US06697395B2 Sum frequency light generation method and sum frequency light generation apparatus adapatble for wide-band wavelength conversion 有权
标题翻译：求和频率光产生方法和和频光发生装置适用于宽带波长转换
公开(公告)号：US06697395B2
公开(公告)日：2004-02-24
申请号：US10096037
申请日：2002-03-12
申请人： Akihito Otani , Toshinobu Otsubo , Hidehiko Takara , Ippei Shake , Satoki Kawanishi
发明人： Akihito Otani , Toshinobu Otsubo , Hidehiko Takara , Ippei Shake , Satoki Kawanishi
IPC分类号： H01S310
CPC分类号： G02F1/3534 , G02F1/3544 , G02F2203/07
摘要： A nonlinear optical crystal allowing type 2 phase matching multiplexes a fixed wavelength light having an angular frequency &ohgr;D and a variable wavelength light having an angular frequency &ohgr;S, with the polarization directions thereof being perpendicular to each other, so as to produce a sum frequency light having an angular frequency &ohgr;D+&ohgr;S. When multiplexing the fixed wavelength light and the variable wavelength light through the nonlinear optical crystal, a controlling section controls the polarization direction of the fixed wavelength light so as to be parallel to a predetermined reference axis within a plane vertical to a phase matching direction of the nonlinear optical crystal. Even when the wavelength of inputted light is changed, the predetermined reference axis is a single axis which maintains parallelism with the crystal axis of the nonlinear optical crystal.
摘要翻译：允许2型相位匹配的非线性光学晶体复用具有角频率ωD的固定波长光和具有角频率ωs的可变波长光，其偏振方向彼此垂直，以便产生具有角频率ω+ D +ω。当通过非线性光学晶体复用固定波长光和可变波长光时，控制部分将固定波长的光的偏振方向控制在垂直于垂直于相位匹配方向的平面内的预定基准轴上非线性光学晶体。即使输入光的波长发生变化，规定的基准轴也是与非线性光学晶体的晶轴平行的单轴。

5. 发明授权

US08625588B2 Packet transmission method and packet transmission device 有权
标题翻译：分组传输方法和分组传输设备
公开(公告)号：US08625588B2
公开(公告)日：2014-01-07
申请号：US12914670
申请日：2010-10-28
申请人： Ippei Shake , Mitsunori Fukutoku , Wataru Imajyuku , Katsuhiro Shimano
发明人： Ippei Shake , Mitsunori Fukutoku , Wataru Imajyuku , Katsuhiro Shimano
IPC分类号： H04L12/28
CPC分类号： H04L45/00 , H04L1/08 , H04L12/4645 , H04L45/24
摘要： A packet transfer method in a network apparatus that transfers packets is disclosed. In the packet transfer method, a sending side apparatus generates two copies of a send packet, provides a sequence number identifying the same sending sequence to each of the copied packets, provides an identifier corresponding to a send/receive pair to each of the copied packets to send the packets, and a receiving side apparatus receives each of the packets with two receiving units; recognizes the identifiers each corresponding to a send/receive pair; identifies packets having the same information and the sequence based on the sequence number when the identifiers are the same; selects one of the packets of the same sequence so as to send the packet downstream, and discards another packet, wherein, when only one of the packets of the same sequence arrives, the arriving packet is sent downstream.
摘要翻译：公开了传送分组的网络装置中的分组传送方法。在分组传送方法中，发送侧装置生成发送分组的两个副本，向每个复制分组提供标识相同发送序列的序列号，向每个复制分组提供与发送/接收对相对应的标识符发送分组，接收侧装置用两个接收单元接收每个分组; 识别每个与发送/接收对相对应的标识符; 当标识符相同时，基于序列号识别具有相同信息的数据包和序列; 选择相同序列的一个分组，以便向下游发送分组，并丢弃另一个分组，其中当相同序列的分组中只有一个到达时，到达的分组被发送到下游。

6. 发明申请

US20110038373A1 PACKET TRANSMISSION METHOD AND PACKET TRANSMISSION DEVICE 有权
标题翻译：分组传输方法和分组传输设备
公开(公告)号：US20110038373A1
公开(公告)日：2011-02-17
申请号：US12914670
申请日：2010-10-28
申请人： Ippei SHAKE , Mitsunori Fukutoku , Wataru Imajyuku , Katsuhiro Shimano
发明人： Ippei SHAKE , Mitsunori Fukutoku , Wataru Imajyuku , Katsuhiro Shimano
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L1/08 , H04L12/4645 , H04L45/24
摘要： A packet transfer method in a network apparatus that transfers packets is disclosed. In the packet transfer method, a sending side apparatus generates two copies of a send packet, provides a sequence number identifying the same sending sequence to each of the copied packets, provides an identifier corresponding to a send/receive pair to each of the copied packets to send the packets, and a receiving side apparatus receives each of the packets with two receiving units; recognizes the identifiers each corresponding to a send/receive pair; identifies packets having the same information and the sequence based on the sequence number when the identifiers are the same; selects one of the packets of the same sequence so as to send the packet downstream, and discards another packet, wherein, when only one of the packets of the same sequence arrives, the arriving packet is sent downstream.
摘要翻译：公开了传送分组的网络装置中的分组传送方法。在分组传送方法中，发送侧装置生成发送分组的两个副本，向每个复制分组提供标识相同发送序列的序列号，向每个复制分组提供与发送/接收对相对应的标识符发送分组，接收侧装置用两个接收单元接收每个分组; 识别每个与发送/接收对相对应的标识符; 当标识符相同时，基于序列号识别具有相同信息的数据包和序列; 选择相同序列的一个分组，以便向下游发送分组，并丢弃另一个分组，其中当相同序列的分组中只有一个到达时，到达的分组被发送到下游。

7. 发明申请

US20080279181A1 Packet Transmission Method and Packet Transmission Device 有权
标题翻译：分组传输方法和分组传输设备
公开(公告)号：US20080279181A1
公开(公告)日：2008-11-13
申请号：US10577874
申请日：2005-07-13
申请人： Ippei Shake , Mitsunori Fukutoku , Wataru Imajyuku , Katsuhiro Shimano
发明人： Ippei Shake , Mitsunori Fukutoku , Wataru Imajyuku , Katsuhiro Shimano
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L1/08 , H04L12/4645 , H04L45/24
摘要： A packet transfer method in a network apparatus that transfers packets is disclosed. In the packet transfer method, a sending side apparatus generates two copies of a send packet, provides a sequence number identifying the same sending sequence to each of the copied packets, provides an identifier corresponding to a send/receive pair to each of the copied packets to send the packets, and a receiving side apparatus receives each of the packets with two receiving units; recognizes the identifiers each corresponding to a send/receive pair; identifies packets having the same information and the sequence based on the sequence number when the identifiers are the same; selects one of the packets of the same sequence so as to send the packet downstream, and discards another packet, wherein, when only one of the packets of the same sequence arrives, the arriving packet is sent downstream.
摘要翻译：公开了传送分组的网络装置中的分组传送方法。在分组传送方法中，发送侧装置生成发送分组的两个副本，向每个复制分组提供标识相同发送序列的序列号，向每个复制分组提供与发送/接收对相对应的标识符发送分组，接收侧装置用两个接收单元接收每个分组; 识别每个与发送/接收对相对应的标识符; 当标识符相同时，基于序列号识别具有相同信息的数据包和序列; 选择相同序列的一个分组，以便向下游发送分组，并丢弃另一个分组，其中当相同序列的分组中只有一个到达时，到达的分组被发送到下游。

8. 发明授权

US06720548B2 Optical sampling waveform measuring apparatus aiming at achieving wider band 有权
标题翻译：光采样波形测量装置旨在实现更宽的频带
公开(公告)号：US06720548B2
公开(公告)日：2004-04-13
申请号：US10095982
申请日：2002-03-12
申请人： Akihito Otani , Toshinobu Otsubo , Hidehiko Takara , Ippei Shake , Satoki Kawanishi
发明人： Akihito Otani , Toshinobu Otsubo , Hidehiko Takara , Ippei Shake , Satoki Kawanishi
IPC分类号： G02F101
CPC分类号： G01J11/00 , G02F1/3534
摘要： A nonlinear optical crystal is composed of 2-adamantyl-5-nitorpyridine (AANP) allowing the type 2 phase matching to the sampling light and a measuring object light, emitting a sum frequency light of the measuring object light and the sampling light, with the polarization directions thereof being perpendicular to each other, when the sampling light and measuring object light multiplexed by a multiplexer are entered. When the sum frequency light is emitted through the nonlinear optical crystal, a control portion controls the polarization direction of the sampling light so as to be parallel to a predetermined reference axis located within a plane perpendicular to a phase matching direction of the nonlinear optical crystal. The predetermined reference axis is a single axis maintaining parallelism with the crystal axis of the nonlinear optical crystal even if the wavelength of the inputted light is changed.
摘要翻译：非线性光学晶体由允许与采样光进行2相匹配的2-金刚烷基-5-硝基吡啶（AANP）和测量对象光组成，发射测量对象光和采样光的和频光，与当由多路复用器复用的采样光和测量对象光进入时，其极化方向彼此垂直。当通过非线性光学晶体发射和频光时，控制部分将采样光的偏振方向控制成与位于垂直于非线性光学晶体的相位匹配方向的平面内的预定参考轴平行。即使输入光的波长发生变化，预定的基准轴也是与非线性光学晶体的晶轴保持平行的单轴。

9. 发明授权

US07869428B2 Packet transmission method and packet transmission device 有权
标题翻译：分组传输方法和分组传输设备
公开(公告)号：US07869428B2
公开(公告)日：2011-01-11
申请号：US10577874
申请日：2005-07-13
申请人： Ippei Shake , Mitsunori Fukutoku , Wataru Imajyuku , Katsuhiro Shimano
发明人： Ippei Shake , Mitsunori Fukutoku , Wataru Imajyuku , Katsuhiro Shimano
IPC分类号： H04L12/28
CPC分类号： H04L45/00 , H04L1/08 , H04L12/4645 , H04L45/24
摘要： A packet transfer method in a network apparatus that transfers packets is disclosed. In the packet transfer method, a sending side apparatus generates two copies of a send packet, provides a sequence number identifying the same sending sequence to each of the copied packets, provides an identifier corresponding to a send/receive pair to each of the copied packets to send the packets, and a receiving side apparatus receives each of the packets with two receiving units; recognizes the identifiers each corresponding to a send/receive pair; identifies packets having the same information and the sequence based on the sequence number when the identifiers are the same; selects one of the packets of the same sequence so as to send the packet downstream, and discards another packet, wherein, when only one of the packets of the same sequence arrives, the arriving packet is sent downstream.
摘要翻译：公开了传送分组的网络装置中的分组传送方法。在分组传送方法中，发送侧装置生成发送分组的两个副本，向每个复制分组提供标识相同发送序列的序列号，向每个复制分组提供与发送/接收对相对应的标识符发送分组，接收侧装置用两个接收单元接收每个分组; 识别每个与发送/接收对相对应的标识符; 当标识符相同时，基于序列号识别具有相同信息的数据包和序列; 选择相同序列的一个分组，以便向下游发送分组，并丢弃另一个分组，其中当相同序列的分组中只有一个到达时，到达的分组被发送到下游。

10. 发明授权

US07200328B2 Method and system for determining origin of optical signal quality degradation 有权
标题翻译：确定光信号质量下降原因的方法和系统
公开(公告)号：US07200328B2
公开(公告)日：2007-04-03
申请号：US10173752
申请日：2002-06-19
申请人： Ippei Shake , Hidehiko Takara , Kentaro Uchiyama
发明人： Ippei Shake , Hidehiko Takara , Kentaro Uchiyama
IPC分类号： H04B10/08
CPC分类号： H04B10/07951 , H04B10/07953
摘要： A monitoring system includes first and second evaluation sections for obtaining an averaged Q-factor parameter and a waveform distortion parameter from an optical signal amplitude histogram collected from optical signals under measurement. The monitoring system further includes a third evaluation section for determining both averaged Q-factor parameter and waveform distortion parameter, and for making a decision as to whether the main factor of the optical signal quality degradation is waveform distortion or not by comparing the averaged Q-factor parameter and waveform distortion parameter with their initial values or initial characteristics which are obtained when no optical signal quality degradation is present.
摘要翻译：监视系统包括第一和第二评估部分，用于从根据测量的光信号收集的光信号幅度直方图获得平均的Q因子参数和波形失真参数。监视系统还包括第三评估部分，用于确定平均Q因子参数和波形失真参数，并且通过将平均的Q-因子参数和波形失真参数进行比较来判断光信号质量劣化的主要因素是否是波形失真，因子参数和波形失真参数及其初始值或初始特性，当没有光信号质量下降时获得。

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