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31. 发明申请

US20110064169A1 FILTER COEFFICIENT CONTROL APPARATUS AND METHOD 有权
标题翻译：过滤器系数控制装置及方法
公开(公告)号：US20110064169A1
公开(公告)日：2011-03-17
申请号：US12835214
申请日：2010-07-13
申请人： Lei LI , Zhenning Tao , Ling Liu , Shoichiro Oda
发明人： Lei LI , Zhenning Tao , Ling Liu , Shoichiro Oda
IPC分类号： H04L27/06
CPC分类号： H04B10/6165 , H04B10/61
摘要： This invention relates to an apparatus and a method for controlling a filter coefficient. The filter coefficient control apparatus controls a coefficient of a filter of a phase recovering apparatus, and comprises a phase offset obtaining means, for obtaining a phase offset between a carrier and a local oscillation; an autocorrelation calculating means, for calculating an autocorrelation and related statistics of the phase offset; and a filter coefficient determining means, for determining the coefficient of the filter in accordance with the autocorrelation and related statistics.
摘要翻译：本发明涉及一种用于控制滤波器系数的装置和方法。滤波器系数控制装置控制相位恢复装置的滤波器的系数，并且包括用于获得载波和本地振荡之间的相位偏移的相位偏移获取装置; 自相关计算装置，用于计算相位偏移的自相关和相关统计; 以及滤波器系数确定装置，用于根据自相关和相关统计确定滤波器的系数。

32. 发明授权

US08514922B2 Filter coefficient control apparatus and method 有权
标题翻译：滤波系数控制装置及方法
公开(公告)号：US08514922B2
公开(公告)日：2013-08-20
申请号：US12835214
申请日：2010-07-13
申请人： Lei Li , Zhenning Tao , Ling Liu , Shoichiro Oda
发明人： Lei Li , Zhenning Tao , Ling Liu , Shoichiro Oda
IPC分类号： H03H7/30
CPC分类号： H04B10/6165 , H04B10/61
摘要： This invention relates to an apparatus and a method for controlling a filter coefficient. The filter coefficient control apparatus controls a coefficient of a filter of a phase recovering apparatus, and comprises a phase offset obtaining means, for obtaining a phase offset between a carrier and a local oscillation; an autocorrelation calculating means, for calculating an autocorrelation and related statistics of the phase offset; and a filter coefficient determining means, for determining the coefficient of the filter in accordance with the autocorrelation and related statistics.
摘要翻译：本发明涉及一种用于控制滤波器系数的装置和方法。滤波器系数控制装置控制相位恢复装置的滤波器的系数，并且包括用于获得载波和本地振荡之间的相位偏移的相位偏移获取装置; 自相关计算装置，用于计算相位偏移的自相关和相关统计; 以及滤波器系数确定装置，用于根据自相关和相关统计确定滤波器的系数。

33. 发明申请

US20110166846A1 SIMULATION DEVICE AND SIMULATION METHOD 有权
标题翻译：模拟装置和模拟方法
公开(公告)号：US20110166846A1
公开(公告)日：2011-07-07
申请号：US12896428
申请日：2010-10-01
申请人： Liang Dou , Zhenning Tao , Shoichiro Oda
发明人： Liang Dou , Zhenning Tao , Shoichiro Oda
IPC分类号： G06G7/62
CPC分类号： H04Q11/0062 , H04Q2011/0086 , H04Q2213/1301
摘要： The present invention relates to a simulation device and simulation method for a cascade communication system. The cascade communication system comprises a plurality of nodes numbered as 1 to N successively from a transmitter to a receiver, the method comprises: acquiring simulation parameters required for simulating the cascade communication system; calculating reverse transfer functions of the respective nodes; determining a current node in a sequence from the Nth node to the first node; adding noise that should be added at the current node to a simulation signal of a previous node from the current node; simulating the current node to generate a simulation signal of the current node, by using the simulation signal of the previous node added with the noise that should be added at the current node, based on the reverse transfer function of the current node; judging whether simulations of all the nodes are completed; if the simulations of all the nodes are not completed, repeating the adding and the simulating for the simulation signal of the current node; if the simulations of all the nodes are completed, determining a cost of the cascade communication system based on the simulation signal of the current node.
摘要翻译：本发明涉及级联通信系统的仿真装置和仿真方法。级联通信系统包括从发射机到接收机连续编号为1到N的多个节点，该方法包括：获取模拟级联通信系统所需的模拟参数; 计算各个节点的反向传递函数; 确定从第N个节点到第一节点的序列中的当前节点; 将当前节点应添加的噪声添加到来自当前节点的先前节点的模拟信号; 基于当前节点的反向传递函数，通过使用添加了当前节点应添加的噪声的先前节点的模拟信号，模拟当前节点生成当前节点的模拟信号; 判断所有节点的仿真是否完成; 如果所有节点的仿真都没有完成，则对当前节点的仿真信号重复加法和仿真; 如果所有节点的模拟完成，则根据当前节点的模拟信号确定级联通信系统的成本。

34. 发明申请

US20110116809A1 PHASE RECOVERY DEVICE, PHASE COVERY METHOD AND RECEIVER FOR 16 QAM DATA MODULATION 有权
标题翻译：相位恢复装置，相位覆盖方法和接收器，用于16 QAM数据调制
公开(公告)号：US20110116809A1
公开(公告)日：2011-05-19
申请号：US12896476
申请日：2010-10-01
申请人： Meng YAN , Zhenning Tao , Shoichiro Oda
发明人： Meng YAN , Zhenning Tao , Shoichiro Oda
IPC分类号： H03D1/24 , H04B10/06
CPC分类号： H04L27/3827 , H04L2027/0046 , H04L2027/0067
摘要： The present invention relates to a phase recovery device, phase recovery method and receiver for 16 QAM data modulation. The phase recovery device comprises: a fourth power calculator for calculating fourth power values of respective symbols in a symbol block; a classification unit for classifying respective symbols in the symbol block based on amplitudes, so as to classify respective symbols in the symbol block into a first category having a large or small amplitude, and a second category having an intermediate amplitude; a reference point determination unit for determining a reference point based on categories of respective symbols in the symbol block and their fourth power values; a rotation unit for rotating respective symbols in the symbol block undergone the fourth power operations and being classified into the second category, based on the reference point; and a phase estimation unit for performing phase estimations based on respective symbols in the symbol block undergone the fourth power operations and being classified into the first category, and respective rotated symbols in the symbol block undergone the fourth power operations and being classified into the second category.
摘要翻译：本发明涉及用于16QAM数据调制的相位恢复装置，相位恢复方法和接收机。相位恢复装置包括：第四功率计算器，用于计算符号块中各符号的第四功率值; 分类单元，用于基于幅度对符号块中的各个符号进行分类，以将符号块中的各个符号分类为具有大或小幅度的第一类别和具有中间幅度的第二类别; 参考点确定单元，用于基于符号块中的各个符号的类别及其第四功率值来确定参考点; 旋转单元，用于旋转经过第四功率操作的符号块中的各个符号，并且基于参考点将其分类为第二类别; 以及相位估计单元，用于基于经过第四功率操作的符号块中的各个符号进行相位估计，并将其分类为第一类别，以及经过第四功率操作的符号块中的相应旋转符号，并被分类为第二类别。

35. 发明授权

US08849131B2 Polarization scattering compensation device and polarization scattering compensation method 有权
标题翻译：极化散射补偿装置和极化散射补偿方法
公开(公告)号：US08849131B2
公开(公告)日：2014-09-30
申请号：US13458773
申请日：2012-04-27
申请人： Lei Li , Zhenning Tao , Shoichiro Oda
发明人： Lei Li , Zhenning Tao , Shoichiro Oda
IPC分类号： H04B10/06 , H04B10/12 , H04J14/02 , H04B10/2519 , H04B10/66 , H04J14/06
CPC分类号： H04B10/66 , H04B10/2519 , H04J14/06
摘要： Polarization scattering compensation device and method are disclosed. In the device, a time sequence alignment unit aligns time sequences of signals in the first and second polarization state transmitted simultaneously; a polarization scattering estimation unit estimates a scattering coefficient of a scattering by the signal in the first polarization state on the signal in the second polarization state, and a scattering coefficient of a scattering by the signal in the second polarization state on the signal in the first polarization state; and a polarization scattering removal unit removes the scattering by the signal in the first polarization state on the signal in the second polarization state, and the scattering by the signal in the second polarization state on the signal in the first polarization state, in accordance with the scattering coefficients.
摘要翻译：公开了极化散射补偿装置和方法。在该装置中，时间序列对准单元对准同时传输的第一和第二极化状态的信号的时间序列; 偏振散射估计单元通过第一偏振态的信号对第二偏振态的信号和第二偏振态中的信号的散射散射系数估计第一偏振态的信号的散射散射系数极化状态; 并且偏振散射去除单元根据第二偏振状态的信号和第一偏振态的信号在第一偏振态的信号上的第一偏振态的信号的散射，根据第散射系数。

36. 发明授权

US08675470B2 Crosstalk coefficient estimating apparatus and crosstalk coefficient estimating method 有权
标题翻译：串扰系数估计装置和串扰系数估计方法
公开(公告)号：US08675470B2
公开(公告)日：2014-03-18
申请号：US12956507
申请日：2010-11-30
申请人： Ling Liu , Zhenning Tao , Shoichiro Oda
发明人： Ling Liu , Zhenning Tao , Shoichiro Oda
IPC分类号： H04J1/12
CPC分类号： H04B10/0795
摘要： This invention relates to crosstalk coefficient estimating apparatus and crosstalk coefficient estimating method. The crosstalk coefficient estimating apparatus is used to estimate a crosstalk coefficient of crosstalk inflicted on one channel of an optical fiber transmission system comprising two or more channels. The crosstalk coefficient estimating apparatus comprises a complex conjugate unit, for obtaining a complex conjugate signal for signal in one polarization-state of another channel other than said one channel; a multiplying unit, for multiplying the complex conjugate signal obtained by the complex conjugate unit with signal in another polarization-state of the another channel; and a filter, for filtering the multiplication result of the multiplying unit to obtain a crosstalk coefficient of crosstalk inflicted on the signal in one polarization-state of said one channel, wherein a transmission function of the filter is set according to system parameters of the optical fiber transmission system.
摘要翻译：本发明涉及串扰系数估计装置和串扰系数估计方法。串扰系数估计装置用于估计包含两个或更多个信道的光纤传输系统的一个信道上产生的串扰串扰系数。串扰系数估计装置包括复共轭单元，用于获得用于除了所述一个信道之外的另一信道的一个极化状态的信号的复共轭信号; 乘法单元，用于将由复共轭单元获得的复共轭信号与另一信道的另一极化状态中的信号相乘; 以及滤波器，用于对乘法单元的相乘结果进行滤波，以获得对所述一个信道的一个极化状态的信号产生的串扰的串扰系数，其中根据光学系统参数设置滤波器的传输函数光纤传输系统。

37. 发明授权

US08666262B2 Method for adaptive blind equalization of PSK signal, equalizer and receiver 有权
标题翻译： PSK信号，均衡器和接收机的自适应盲均衡方法
公开(公告)号：US08666262B2
公开(公告)日：2014-03-04
申请号：US12906560
申请日：2010-10-18
申请人： Meng Yan , Huijian Zhang , Zhenning Tao , Shoichiro Oda
发明人： Meng Yan , Huijian Zhang , Zhenning Tao , Shoichiro Oda
IPC分类号： H04B10/60
CPC分类号： H04L25/0305 , H04L2025/03401 , H04L2025/03675
摘要： The present application discloses a method for adaptive blind equalization of a PSK signal, an equalizer and a receiver. According to embodiments as provided, a conjugate product of a current output and a precedent output of an FIR filter is calculated, an equalization coefficient is updated using the conjugate product, and then an input signal is filtered using the FIR filter with the updated equalization coefficient. The embodiments as provided is applicable to adaptive blind equalization of any phase shift keying signal including a BPSK signal.
摘要翻译：本申请公开了一种用于PSK信号，均衡器和接收机的自适应盲均衡的方法。根据提供的实施例，计算FIR滤波器的电流输出和先前输出的共轭乘积，使用共轭乘积来更新均衡系数，然后使用具有更新的均衡系数的FIR滤波器对输入信号进行滤波。所提供的实施例可应用于包括BPSK信号的任何相移键控信号的自适应盲均衡。

38. 发明授权

US08472814B2 Apparatus and method for equalizing chromatic dispersion and digital coherent optical receiver 有权
标题翻译：用于均衡色散和数字相干光接收机的装置和方法
公开(公告)号：US08472814B2
公开(公告)日：2013-06-25
申请号：US12835251
申请日：2010-07-13
申请人： Huijian Zhang , Zhenning Tao , Shoichiro Oda
发明人： Huijian Zhang , Zhenning Tao , Shoichiro Oda
IPC分类号： H04B10/00
CPC分类号： H04B10/6161
摘要： This application relates to an apparatus and a method for equalizing chromatic dispersion and a digital coherent optical receiver. The apparatus for equalizing chromatic dispersion comprising: a chromatic dispersion equalizing unit, for compensating chromatic dispersion of an input signal; and an additional time delay removing unit, for removing, in accordance with frequency offset of the input signal, chromatic dispersion equalization time delay generated by the chromatic dispersion equalizing unit.
摘要翻译：本申请涉及用于均衡色散和数字相干光接收机的装置和方法。用于均衡色散的装置包括：色散均衡单元，用于补偿输入信号的色散; 以及附加的时间延迟去除单元，用于根据输入信号的频率偏移去除由色散均衡单元产生的色散均衡时间延迟。

39. 发明申请

US20110129232A1 EXTERNAL MODULATOR MONITORING DEVICE AND EXTERNAL MODULATOR MONITORING METHOD 有权
标题翻译：外部调制器监视装置和外部调制器监视方法
公开(公告)号：US20110129232A1
公开(公告)日：2011-06-02
申请号：US12897331
申请日：2010-10-04
申请人： Liang DOU , Zhenning Tao , Shoichiro Oda
发明人： Liang DOU , Zhenning Tao , Shoichiro Oda
IPC分类号： H04B10/04
CPC分类号： H04B10/50575 , H04B10/50595
摘要： This invention relates to external modulator monitoring device and method for monitoring an external modulator. The external modulator monitoring device includes a mixing unit for mixing optical signals modulated by the external modulator and optical signals not modulated by the external modulator, so as to obtain multiple branches of mixed optical signals; an electrical differential unit for converting the multiple branches of mixed optical signals into corresponding multiple branches of electrical signals, and performing a differential processing on voltages of the multiple branches of electrical signals to obtain differential signals; and a power detection unit for detecting power of the differential signals.
摘要翻译：本发明涉及用于监视外部调制器的外部调制器监视装置和方法。外部调制器监视装置包括用于混合由外部调制器调制的光信号和未被外部调制器调制的光信号的混合单元，以获得混合光信号的多个分支; 用于将混合光信号的多个分支转换成相应的多个电信号的电差分单元，并且对电信号的多个分支的电压进行差分处理以获得差分信号; 以及功率检测单元，用于检测差分信号的功率。

40. 发明授权

US08566073B2 Simulation device and simulation method 有权
标题翻译：仿真设备及仿真方法
公开(公告)号：US08566073B2
公开(公告)日：2013-10-22
申请号：US12896428
申请日：2010-10-01
申请人： Liang Dou , Zhenning Tao , Shoichiro Oda
发明人： Liang Dou , Zhenning Tao , Shoichiro Oda
IPC分类号： G06F17/50 , G06G7/62
CPC分类号： H04Q11/0062 , H04Q2011/0086 , H04Q2213/1301
摘要： A simulation method for a cascade communication system comprising a nodes sequence numbered as 1 to N from a transmitter to a receiver, comprises: acquiring simulation parameters; calculating reverse transfer functions of the nodes; determining a current node in the sequence; adding noise that should be added at the current node to a simulation signal of a previous node; simulating the current node to generate a simulation signal of the current node, by using the simulation signal of the previous node added with the noise that should be added at the current node, based on the reverse transfer function of the current node; judging whether simulations of all the nodes are completed; if yes, repeating the adding and the simulating; if not, determining a cost of the based on the simulation signal of the current node.
摘要翻译：一种级联通信系统的仿真方法，包括从发射机到接收机的编号为1到N的节点序列，包括：获取模拟参数; 计算节点的反向传递函数; 确定序列中的当前节点; 将应该在当前节点添加的噪声添加到先前节点的模拟信号; 基于当前节点的反向传递函数，通过使用添加了当前节点应添加的噪声的先前节点的模拟信号，模拟当前节点生成当前节点的模拟信号; 判断所有节点的仿真是否完成; 如果是，重复添加和模拟; 如果不是，则基于当前节点的模拟信号确定成本。

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