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21. 发明授权

US08515293B2 Coherent receiver 有权
标题翻译：相干接收机
公开(公告)号：US08515293B2
公开(公告)日：2013-08-20
申请号：US13138958
申请日：2010-04-21
申请人： Wakako Yasuda , Daisaku Ogasahara , Kiyoshi Fukuchi
发明人： Wakako Yasuda , Daisaku Ogasahara , Kiyoshi Fukuchi
IPC分类号： H04B10/06
CPC分类号： H04B10/611 , H04B10/60 , H04B10/6166 , H04L27/223
摘要： A coherent receiver 1 assigns a first transmission signal to first transmission polarization, assigns a second transmission signal to second transmission polarization, and receives a quadrature multiplexed signal formed by applying quadrature multiplexing to the first transmission polarization and the second transmission polarization. The coherent receiver includes a detection means 10 for detecting the first transmission polarization and the second transmission polarization according to prescribed first reception polarization and second reception polarization and obtaining a first detected signal and a second detected signal; a quantization means 20 for quantizing the first detected signal and the second detected signal and obtaining a first quantized signal and a second quantized signal; and a signal processing means 30 for, when filtering the first quantized signal and the second quantized signal using a prescribed filtering control algorithm to form a first demodulated signal and a second demodulated signal respectively, adjusting filter coefficients of the filtering control algorithm according to the first quantized signal and the second quantized signal and the first demodulated signal and the second demodulated signal, and outputting the first demodulated signal and the second demodulated signal to a first output terminal and a second output terminal, respectively.
摘要翻译：相干接收机1将第一传输信号分配给第一传输极化，将第二传输信号分配给第二传输极化，并且接收通过对第一透射偏振和第二透射偏振应用正交多路复用形成的正交多路复用信号。相干接收机包括检测装置10，用于根据规定的第一接收极化和第二接收极化检测第一透射偏振和第二透射偏振，并获得第一检测信号和第二检测信号; 量化装置20，用于量化第一检测信号和第二检测信号，并获得第一量化信号和第二量化信号; 以及信号处理装置30，用于当使用规定的滤波控制算法对第一量化信号和第二量化信号进行滤波以分别形成第一解调信号和第二解调信号时，根据第一信号调整滤波器控制算法的滤波器系数量化信号和第二量化信号以及第一解调信号和第二解调信号，并将第一解调信号和第二解调信号分别输出到第一输出端和第二输出端。

22. 发明申请

US20110293287A1 OPTICAL COMMUNICATION SYSTEM AND OPTICAL COMMUNICATION METHOD 有权
标题翻译：光通信系统和光通信方法
公开(公告)号：US20110293287A1
公开(公告)日：2011-12-01
申请号：US13147079
申请日：2010-01-08
申请人： Kiyoshi Fukuchi
发明人： Kiyoshi Fukuchi
IPC分类号： H04B10/12
CPC分类号： H04B10/25133 , H04B2210/252 , H04B2210/254
摘要： An optical communication system in which optical transmitter 101 that modulates an electric signal to an optical signal and transmits the optical signal and optical receiver 108 that receives the optical signal are connected via transmission path 107, wherein, when a change in the dispersion amount of chromatic dispersion caused by the optical signal passing through transmission path 107 is nearly eliminated, optical transmitter 101 and optical receiver 108 decrease the absolute value of a receiver-side dispersion compensation amount while keeping the total value of a transmitter-side dispersion compensation amount for compensating for the dispersion amount by optical transmitter 101 and the receiver-side dispersion compensation amount for compensating for the dispersion amount by optical receiver 108 substantially constant.
摘要翻译：一种光通信系统，其中通过传输路径107连接调制光信号的电信号并发送接收光信号的光信号和光接收机108的光发射机101，其中，当色散色散量的变化通过传输路径107的光信号引起的色散几乎被消除，光发射机101和光接收机108降低接收机侧色散补偿量的绝对值，同时保持用于补偿的发射机侧色散补偿量的总值光发射机101的色散量和用于补偿光接收机108的色散量基本上恒定的接收机侧色散补偿量。

23. 发明申请

US20100215365A1 OPTICAL MODULATOR AND OPTICAL COMMUNICATION SYSTEM 有权
标题翻译：光学调制器和光通信系统
公开(公告)号：US20100215365A1
公开(公告)日：2010-08-26
申请号：US12682367
申请日：2008-10-10
申请人： Kiyoshi Fukuchi
发明人： Kiyoshi Fukuchi
IPC分类号： H04J14/00 , G02F1/225 , G02F1/01
CPC分类号： H04B10/5053 , G02F1/21 , G02F2001/212 , H04B10/5055 , H04B10/5561
摘要： The optical modulator comprises an optical branching unit branching incident light into a first signal light and a second signal light; a first Mach-Zehnder modulator modulating the first signal light; a second Mach-Zehnder modulator modulating the second signal light; a phase shifter giving a fixed phase shift to the phase of the output light from the second Mach-Zehnder modulator; and an optical multiplexer multiplexing the output light from the first Mach-Zehnder modulator and the output light from the phase shifter. The phase shifter gives the phase shift so that the two input lights to the optical multiplexer have a phase difference of 60 degrees, and the first and second Mach-Zehnder modulators are driven by three-level signals.
摘要翻译：光调制器包括将入射光分为第一信号光和第二信号光的光分支单元; 调制第一信号光的第一马赫 - 曾德调制器; 调制第二信号光的第二马赫 - 曾德调制器; 移相器，其给出来自第二马赫 - 策德尔调制器的输出光的相位的固定相移; 以及多路复用来自第一马赫 - 曾德调制器的输出光和来自移相器的输出光的光复用器。移相器给出相移，使得光复用器的两个输入光具有60度的相位差，并且第一和第二马赫 - 曾德调制器由三电平信号驱动。

24. 发明申请

US20080232815A1 Dpsk Modulation-Demodulation Method, and Optical Communication Device and Optical Communication System Using the Same 有权
标题翻译： Dpsk调制解调方法，以及使用其的光通信设备和光通信系统
公开(公告)号：US20080232815A1
公开(公告)日：2008-09-25
申请号：US11916612
申请日：2006-06-28
申请人： Satomi Shioiri , Toshiharu Itou , Kiyoshi Fukuchi , Hitoshi Takeshita
发明人： Satomi Shioiri , Toshiharu Itou , Kiyoshi Fukuchi , Hitoshi Takeshita
IPC分类号： H04B10/04 , H04B10/00
CPC分类号： H04J14/08 , H04B10/5561 , H04B10/66 , H04J14/02
摘要： In the optical communication device and the optical communication system using DPSK modulation whose cost is low, whose size is small and whose power consumption is low, the N:1 multiplexer 125 generates a serial signal by multiplexing a parallel signal coded by the DPSK modulation coding units 115˜117 bit by bit on a time division basis. The electric-phase modulation optical converter 127 converts a serial signal into a phase modulation light. The N-bit delay interferometer 132 executes DPSK decoding with respect to a phase modulation light by comparison with an N-bit preceding optical signal. The optical-electric signal converter 134 converts a decoded intensity modulation light into an electric signal. The N:1 demultiplexer 136 divides an electric signal converted by the optical-electric signal converter 134 into a number N of signals bit by bit on a time division basis.
摘要翻译：在光通信设备和使用成本低，尺寸小并且功耗低的DPSK调制的光通信系统中，N：1多路复用器125通过多路复用由DPSK调制编码编码的并行信号来生成串行信号单位115〜117，按时间划分。电相调制光转换器127将串行信号转换为相位调制光。 N位延迟干涉仪132通过与N位在前的光信号进行比较来执行相对于相位调制光的DPSK解码。光电信号转换器134将解码的强度调制光转换成电信号。 N：1解复用器136将由光电信号转换器134转换的电信号分时分割为数字N个信号。

25. 发明申请

US20080138065A1 Evaluation and adjustment method of optical receiver and optical communication system 有权
标题翻译：光接收机和光通信系统的评估与调整方法
公开(公告)号：US20080138065A1
公开(公告)日：2008-06-12
申请号：US11878207
申请日：2007-07-23
申请人： Kiyoshi Fukuchi
发明人： Kiyoshi Fukuchi
IPC分类号： H04B10/08 , H04B17/00
CPC分类号： H04B10/677
摘要： An evaluation method of an optical receiver of an optical communication system, including: a DPSK (Differential Phase Shift Keying) signal modulated by a specific data series; a delay interferometer for performing delay detection on the DPSK signal; an optical receiver for receiving each of two optical outputs of the delay interferometer and outputting a difference signal; and a spectrum analyzer for measuring a spectrum of an output electrical signal of the optical receiver, comprising: monitoring a specific frequency component of the spectrum analyzer and detecting a delay difference and a deviation in optical reception level between the two outputs of the delay interferometer and the optical receiver.
摘要翻译：一种光通信系统的光接收机的评估方法，包括：由特定数据序列调制的DPSK（差分相移键控）信号; 延迟干涉仪，用于对DPSK信号进行延迟检测; 光接收器，用于接收所述延迟干涉仪的两个光输出中的每一个并输出差分信号; 以及频谱分析器，用于测量光接收机的输出电信号的频谱，包括：监视频谱分析仪的特定频率分量并检测延迟干涉仪的两个输出之间的延迟差和光接收电平的偏差，以及光接收机。

26. 发明授权

US07126321B2 Apparatus and method for measuring transmission delay time of a signal propagation path between printed circuit boards 失效
公开(公告)号：US07126321B2
公开(公告)日：2006-10-24
申请号：US11339631
申请日：2006-01-26
申请人： Satomi Shioiri , Kiyoshi Fukuchi
发明人： Satomi Shioiri , Kiyoshi Fukuchi
IPC分类号： G01R23/16
CPC分类号： G01R31/2813 , G01R27/04 , G01R27/32 , G01R31/11
摘要： Transmission delay time measurement is performed on a signal propagation path between respective points of two printed circuit boards connected by a coaxial cable. Measurement is made of a frequency-domain response of the cable and a first time-domain response of the propagation path at its sending point and a second time-domain response of the propagation path at its receiving point. From the first time-domain response and the frequency-domain response, estimation is made of a third time-domain response of the propagation path that would be observed at the receiving point if there is no waveform distortion on the surface of the printed circuit boards. Time-domain correlation is calculated between the second and third time-domain responses. A first delay time is determined from the estimated time-domain response and a second delay time is determined from the correlation. The first and second delay times are summed to yield the transmission delay time of the propagation path.

27. 发明申请

US20060164066A1 Apparatus and method for measuring transmission delay time of a signal propagation path between printed circuit boards 失效
标题翻译：用于测量印刷电路板之间的信号传播路径的传输延迟时间的装置和方法
公开(公告)号：US20060164066A1
公开(公告)日：2006-07-27
申请号：US11339631
申请日：2006-01-26
申请人： Satomi Shioiri , Kiyoshi Fukuchi
发明人： Satomi Shioiri , Kiyoshi Fukuchi
IPC分类号： G01R23/16
CPC分类号： G01R31/2813 , G01R27/04 , G01R27/32 , G01R31/11
摘要： Transmission delay time measurement is performed on a signal propagation path between respective points of two printed circuit boards connected by a coaxial cable. Measurement is made of a frequency-domain response of the cable and a first time-domain response of the propagation path at its sending point and a second time-domain response of the propagation path at its receiving point. From the first time-domain response and the frequency-domain response, estimation is made of a third time-domain response of the propagation path that would be observed at the receiving point if there is no waveform distortion on the surface of the printed circuit boards. Time-domain correlation is calculated between the second and third time-domain responses. A first delay time is determined from the estimated time-domain response and a second delay time is determined from the correlation. The first and second delay times are summed to yield the transmission delay time of the propagation path.
摘要翻译：在通过同轴电缆连接的两个印刷电路板的各点之间的信号传播路径上执行传输延迟时间测量。由电缆的频域响应和其发送点处的传播路径的第一时域响应和其接收点处的传播路径的第二时域响应进行测量。从第一时域响应和频域响应，如果在印刷电路板的表面上没有波形失真，则估计将在接收点观察到的传播路径的第三时域响应。在第二和第三时域响应之间计算时域相关。从估计的时域响应确定第一延迟时间，并根据相关性确定第二延迟时间。将第一和第二延迟时间相加以产生传播路径的传输延迟时间。

28. 发明授权

US5745613A Wavelength-division multiplexing optical communication apparatus and method therefor 失效
标题翻译：波分复用光通信装置及其方法
公开(公告)号：US5745613A
公开(公告)日：1998-04-28
申请号：US759689
申请日：1996-12-06
申请人： Kiyoshi Fukuchi , Takashi Ono
发明人： Kiyoshi Fukuchi , Takashi Ono
IPC分类号： G02F1/31 , H04B10/07 , H04B10/2507 , H04B10/2525 , H04B10/2563 , H04B10/516 , H04B10/54 , H04B10/556 , H04B10/588 , H04B10/61 , H04J1/00 , H04J14/00 , H04J14/02 , G02B6/28
CPC分类号： H04B10/2525 , H04J14/02
摘要： A wavelength division-multiplexing optical communication apparatus and method includes a plurality of modulators for respectively modulating the intensity of a plurality of light rays, each having a different wavelength from one another, with a data signal from a signal source, a wavelength division-multiplexer for combining the light from the modulators, fiber optics for transmitting light from the wavelength division multiple and a wavelength division-multiplexed light receiver for separating the light from the transmission path fiber optics by wavelength (and receiving the separated light, respectively. The light modulators control or select a magnitude of the phase modulation caused at the time of intensity modulation, and the modulator for each light wavelength is separately controlled and selected for the operating point, so as to cause a phase modulation component which minimizes the waveform distortion after transmission through the transmission path fiber optics. Hence, the apparatus is not limited in its wavelength range or transmission distance caused by waveform distortion due to the wavelength dependency of dispersion of transmission path.
摘要翻译：波分复用光通信装置和方法包括：多个调制器，用于分别将来自彼此具有不同波长的多个光线的强度与来自信号源的数据信号，波分复用器用于组合来自调制器的光，用于传输来自波分复用器的光的光纤和用于通过波长分离来自传输路径光纤的光（并且分别接收分离的光）的波分复用光接收器，光调制器控制或选择在强度调制时引起的相位调制的幅度，并且针对每个光波长的调制器被分别控制并选择用于工作点，以便产生最小化透射后的波形失真的相位调制分量传输路径光纤由于传输路径的色散的波长依赖性，波长范围或传输距离不受限于波形失真。

29. 发明授权

US5712105A Monoclonal antibody to human glicentin, hybridoma for producing said antibody and assay method for human glicentin using said antibody 失效
标题翻译：人glicentin的单克隆抗体，用于产生所述抗体的杂交瘤和使用所述抗体的人glicentin的测定方法
公开(公告)号：US5712105A
公开(公告)日：1998-01-27
申请号：US548152
申请日：1995-10-25
申请人： Noboru Yanaihara , Takeya Sato , Kiyoshi Fukuchi
发明人： Noboru Yanaihara , Takeya Sato , Kiyoshi Fukuchi
IPC分类号： G01N33/53 , C07K16/00 , C07K16/18 , C07K16/26 , C12N5/10 , C12N5/20 , C12N15/02 , C12P21/08 , C12R1/91 , G01N33/577 , G01N33/537 , G01N33/543
CPC分类号： C07K16/26 , C07K2317/34
摘要： The present invention describes a monoclonal antibody which recognizes the C-terminal region of human glicentin. The antibody is useful for assaying for the presence of glicentin in a sample.
摘要翻译：本发明描述识别人glicentin的C-末端区域的单克隆抗体。该抗体可用于测定样品中glicentin的存在。

30. 发明授权

US08953953B2 Coherent optical receiver, apparatus and method for detecting inter-channel skew in coherent optical receiver 有权
标题翻译：相干光接收机，用于检测相干光接收机中的信道间偏斜的装置和方法
公开(公告)号：US08953953B2
公开(公告)日：2015-02-10
申请号：US14082875
申请日：2013-11-18
申请人： Junichi Abe , Wakako Yasuda , Kiyoshi Fukuchi
发明人： Junichi Abe , Wakako Yasuda , Kiyoshi Fukuchi
IPC分类号： H04B10/00 , H04B10/61 , H04B10/077
CPC分类号： H04B10/616 , H04B10/0775 , H04B10/6164 , H04B10/6165
摘要： In a coherent optical receiver, sufficient demodulation becomes impossible and consequently receiving performance deteriorates if an inter-channel skew arises, therefore, a method for detecting inter-channel skew in a coherent optical receiver according to an exemplary aspect of the invention includes the steps of: outputting a plurality of optical signals separated into a plurality of signal components by making a test light from a test light source interfere with a local light from a local light source; detecting the optical signals and outputting detected electrical signals; quantizing the detected electrical signals and outputting quantized signals; performing a fast Fourier transform process on the quantized signals; and calculating a difference in propagation delay between the plurality of signal components on the basis of a plurality of peak values in the results of performing the fast Fourier transform process.
摘要翻译：在相干光接收机中，如果出现信道间偏移，则不能进行足够的解调，因此接收性能恶化，因此根据本发明的示例性方面的用于检测相干光接收机中的信道间偏移的方法包括以下步骤：通过使来自测试光源的测试光与本地光源的局部光干扰而输出分离成多个信号分量的多个光信号; 检测光信号并输出检测到的电信号; 量化检测到的电信号并输出量化信号; 对量化信号执行快速傅立叶变换处理; 以及基于执行快速傅立叶变换处理的结果中的多个峰值来计算多个信号分量之间的传播延迟的差异。

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