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11. 发明申请

US20100329697A1 DIGITAL COHERENT RECEIVING APPARATUS 有权
标题翻译：数码相机接收装置
公开(公告)号：US20100329697A1
公开(公告)日：2010-12-30
申请号：US12821061
申请日：2010-06-22
申请人： Nobukazu KOIZUMI , Takeshi Hoshida , Takahito Tanimura , Hisao Nakashima , Koji Nakamuta , Noriyasu Nakayama
发明人： Nobukazu KOIZUMI , Takeshi Hoshida , Takahito Tanimura , Hisao Nakashima , Koji Nakamuta , Noriyasu Nakayama
IPC分类号： H04B10/06
CPC分类号： H04B10/616 , H03J7/26 , H04B10/60 , H04B10/611 , H04B10/614 , H04B10/6165 , H04L7/0335 , H04L27/0014 , H04L27/223 , H04L27/2276 , H04L2027/0016 , H04L2027/0067
摘要： A digital coherent receiving apparatus includes a first oscillator for outputting a local light signal of a fixed frequency, a hybrid unit mixing the local light signal with a light signal received by a receiver, a second oscillator for outputting a sampling signal of a sampling frequency, a converter for converting the mixed light signal into digital signal synchronizing with the sampling signal, a waveform adjuster for adjusting a waveform distortion of the converted digital signal, a phase adjustor for adjusting a phase of the digital signal adjusted by the waveform adjustor, a demodulator for demodulating the digital signal adjusted by the phase adjuster, and a phase detector for detecting a phase of the digital signal adjusted by the phase adjuster, and a control signal output unit for outputting a frequency control signal on the basis of the detected phase signal to the second oscillator.
摘要翻译：数字相干接收装置包括用于输出固定频率的本地光信号的第一振荡器，将本地光信号与由接收机接收的光信号混合的混合单元，用于输出采样频率的采样信号的第二振荡器，用于将混合光信号转换为与采样信号同步的数字信号的转换器，用于调整转换的数字信号的波形失真的波形调节器，用于调整由波形调节器调节的数字信号的相位的相位调节器，解调器用于解调由相位调节器调节的数字信号，以及相位检测器，用于检测由相位调节器调节的数字信号的相位;以及控制信号输出单元，用于根据检测到的相位信号将频率控制信号输出到第二个振荡器。

12. 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。

13. 发明申请

US20100111544A1 OPTICAL RECEIVER FOR CONTROLLING WAVELENGTH OF LOCAL OSCILLATION LIGHT AND LOCAL OSCILLATION LIGHT CONTROL METHOD 有权
标题翻译：用于控制本地振荡光和局部振荡光控制方法波长的光接收器
公开(公告)号：US20100111544A1
公开(公告)日：2010-05-06
申请号：US12496274
申请日：2009-07-01
申请人： Shoichiro ODA , Takeshi Hoshida , Hisao Nakashima , Takahito Tanimura
发明人： Shoichiro ODA , Takeshi Hoshida , Hisao Nakashima , Takahito Tanimura
IPC分类号： H04B10/06
CPC分类号： H04B10/613 , H04B10/60 , H04B10/64
摘要： While altering a plurality of wavelength setting parameters according to a control sequence, a local oscillation light having a wavelength controlled by those wavelength setting parameters is generated. Further, the received signal light and the generated local oscillation light are mixed, and if an electric signal is generated by photoelectric conversion from the resulting light, then the wavelength control of the local oscillation light is terminated.
摘要翻译：在根据控制序列改变多个波长设置参数的同时，产生具有由这些波长设置参数控制的波长的本地振荡光。此外，接收的信号光和产生的本地振荡光被混合，并且如果通过从所得到的光的光电转换产生电信号，则终止本地振荡光的波长控制。

14. 发明授权

US08744278B2 Method for electric power supply of optical receiver, digital signal processing circuit, and optical receiver 有权
标题翻译：光接收机，数字信号处理电路和光接收机的供电方法
公开(公告)号：US08744278B2
公开(公告)日：2014-06-03
申请号：US12458104
申请日：2009-06-30
申请人： Shoichiro Oda , Takeshi Hoshida , Hisao Nakashima , Takahito Tanimura
发明人： Shoichiro Oda , Takeshi Hoshida , Hisao Nakashima , Takahito Tanimura
IPC分类号： H04B10/06 , H04B10/00
CPC分类号： H04L25/03038 , H04B10/6971 , H04L2025/03566
摘要： In a digital signal processing circuit of an optical receiver applicable to this method for electric power supply control, tap coefficients of a filter used in a waveform equalization section are calculated in a tap coefficient calculating section, based on a state of an optical fiber transmission line. Then, among the calculated tap coefficients, a tap coefficient for which an absolute value is less than a previously determined threshold is determined, and electric power supply to a circuit part of a filter corresponding to the tap coefficient is stopped. As a result, for an optical receiver that performs digital signal processing, it is possible to reduce the power consumption, while realizing waveform equalization at a high accuracy.
摘要翻译：在适用于该电力供给控制方法的光接收机的数字信号处理电路中，根据光纤传输线的状态，在抽头系数计算部中计算波形均衡部中使用的滤波器的抽头系数。然后，在所计算的抽头系数中，确定绝对值小于先前确定的阈值的抽头系数，并且停止对与抽头系数相对应的滤波器的电路部分的电力供应。结果，对于执行数字信号处理的光接收机，可以在高精度地实现波形均衡的同时降低功耗。

15. 发明授权

US08488975B2 Optical transmitter, optical transmitter and receiver system, optical transmitting method and optical transmitting and receiving method 有权
标题翻译：光发射机，光发射机和接收机系统，光传输方式和光发射接收方式
公开(公告)号：US08488975B2
公开(公告)日：2013-07-16
申请号：US12911395
申请日：2010-10-25
申请人： Shoichiro Oda , Takeshi Hoshida , Takahito Tanimura
发明人： Shoichiro Oda , Takeshi Hoshida , Takahito Tanimura
IPC分类号： H04B10/00
CPC分类号： H04B10/5053 , H04B10/2569 , H04B10/516 , H04B2210/254 , H04J14/06 , H04J14/086
摘要： An optical transmitter includes: a pre-compensator calculating an electrical field of an optical signal subjected to an electronic pre-compensation with respect to an input digital signal; a parallelizer parallelizing the electrical field of the optical signal calculated by the pre-compensator; a plurality of optical modulators modulating an optical signal based on each of parallelized electrical fields of optical signals; and a time-division multiplexer time-division-multiplexing an optical signal output from the plurality of the optical modulators.
摘要翻译：光发射机包括：预补偿器，用于计算相对于输入数字信号进行电子预补偿的光信号的电场; 平行化由预补偿器计算的光信号的电场的并联器; 多个光调制器，其基于光信号的并行电场中的每一个调制光信号; 以及时分多路复用器，对从多个光调制器输出的光信号进行时分复用。

16. 发明授权

US08391725B2 Optical receiver for controlling wavelength of local oscillation light and local oscillation light control method 有权
标题翻译：用于控制本地振荡光的波长的光接收器和本地振荡光控制方法
公开(公告)号：US08391725B2
公开(公告)日：2013-03-05
申请号：US12496274
申请日：2009-07-01
申请人： Shoichiro Oda , Takeshi Hoshida , Hisao Nakashima , Takahito Tanimura
发明人： Shoichiro Oda , Takeshi Hoshida , Hisao Nakashima , Takahito Tanimura
IPC分类号： H04B10/06
CPC分类号： H04B10/613 , H04B10/60 , H04B10/64
摘要： While altering a plurality of wavelength setting parameters according to a control sequence, a local oscillation light having a wavelength controlled by those wavelength setting parameters is generated. Further, the received signal light and the generated local oscillation light are mixed, and if an electric signal is generated by photoelectric conversion from the resulting light, then the wavelength control of the local oscillation light is terminated.
摘要翻译：在根据控制序列改变多个波长设置参数的同时，产生具有由这些波长设置参数控制的波长的本地振荡光。此外，接收的信号光和产生的本地振荡光被混合，并且如果通过从所得到的光的光电转换产生电信号，则终止本地振荡光的波长控制。

17. 发明授权

US08351795B2 Optical transmission system and optical transmission method 有权
公开(公告)号：US08351795B2
公开(公告)日：2013-01-08
申请号：US12219863
申请日：2008-07-29
申请人： Hisao Nakashima , Takeshi Hoshida , Takahito Tanimura , Toru Katagiri , Shoichiro Oda
发明人： Hisao Nakashima , Takeshi Hoshida , Takahito Tanimura , Toru Katagiri , Shoichiro Oda
IPC分类号： H04B10/00
CPC分类号： H04B10/2572 , H04B10/532 , H04B10/5561
摘要： An optical transmission system, where in an optical transmitter a detection bit having a specific pattern set according to the number of bits to be transmitted within one symbol time, is imparted with respect to a transmission signal in which transmission information has been encoded according to a preset format, and an optical signal generated by modulating light according to the transmission signal is transmitted to a transmission line. In an optical receiver, logic inversion or bit swap of received data is detected and compensated by using the detection bit included in the received signal, a decoding process of the compensated received signal is executed. As a result, when an optical signal capable of transmitting multi-bit information within one symbol time is transferred, it is possible to realize excellent transmission characteristics, by reliably compensating an error in received data caused by the modulation format or the multiplex system of the optical signal.

18. 发明申请

US20120177383A1 OPTICAL RECEIVER AND OPTICAL TRANSMISSION SYSTEM 有权
标题翻译：光接收机和光传输系统
公开(公告)号：US20120177383A1
公开(公告)日：2012-07-12
申请号：US13324639
申请日：2011-12-13
申请人： Takahito TANIMURA , Takeshi Hoshida
发明人： Takahito TANIMURA , Takeshi Hoshida
IPC分类号： H04B10/06 , H04B10/00
CPC分类号： H04B10/61
摘要： An optical receiver includes: a first generator to generate, from an optical signal to which a reference signal is inserted, a first digital signal representing a signal component of a first partial band including the reference signal, using a first local oscillation light of a first frequency; a second generator to generate, from the optical signal, a second digital signal representing a signal component of a second partial band including the reference signal, using a second local oscillation light of a second frequency being different from the first frequency; a frequency compensator to adjust a frequency of the signal component of the first partial band and a frequency of the signal component of the second partial band according to a frequency of the reference signal; and a combiner to combine the first and second partial bands adjusted by the frequency compensator.
摘要翻译：一种光接收机，包括：第一发生器，用于从第一数字信号中产生参考信号，第一数字信号表示包含参考信号的第一部分频带的信号分量，使用第一本地振荡光频率; 第二发生器，使用与所述第一频率不同的第二频率的第二本地振荡光，从所述光信号产生表示包括所述参考信号的第二部分频带的信号分量的第二数字信号; 频率补偿器，用于根据参考信号的频率调整第一部分频带的信号分量的频率和第二部分频带的信号分量的频率; 以及组合器，以组合由频率补偿器调整的第一和第二部分频带。

19. 发明授权

US08086113B2 Optical receiver 有权
标题翻译：光接收机
公开(公告)号：US08086113B2
公开(公告)日：2011-12-27
申请号：US12104056
申请日：2008-04-16
申请人： Hisao Nakashima , Takeshi Hoshida , Takahito Tanimura
发明人： Hisao Nakashima , Takeshi Hoshida , Takahito Tanimura
IPC分类号： H04B10/00
CPC分类号： H04B10/611 , H04B10/60 , H04B10/6165
摘要： An optical mixing part mixing a received optical signal and local oscillator light in at least two kinds of phases and extracting at least two-system optical signals corresponding to each light phase; a photoelectric conversion part converting the at least two-system optical signals obtained in the optical mixing part into electric analog signals; an analog-to-digital conversion part converting the electric analog signals into digital signals; and a control part processing the digital signals thereby detecting a light phase difference between the respective systems in the optical mixing part and supplying a signal for correcting the light phase between the systems to the optical mixing part to control the optical mixing part so that the light phase difference becomes to zero or close to a desired value when the light phase difference has a shift from the desired value.
摘要翻译：一种光混合部分，将接收的光信号和至少两相的本地振荡光混合，并提取与每个光相对应的至少两系统的光信号; 将所述光混合部中获得的所述至少两系统的光信号转换成电模拟信号的光电转换部; 模拟数字转换部分将电模拟信号转换为数字信号; 以及控制部分处理数字信号，从而检测光混合部分中的各个系统之间的光相位差，并将用于校正系统之间的光相位的信号提供给光学混合部分，以控制光学混合部分，使得光当光相位差从期望值偏移时，相位差变为零或接近期望值。

20. 发明申请

US20090087194A1 Optical transmission system and optical transmission method 有权
标题翻译：光传输系统和光传输方式
公开(公告)号：US20090087194A1
公开(公告)日：2009-04-02
申请号：US12219863
申请日：2008-07-29
申请人： Hisao Nakashima , Takeshi Hoshida , Takahito Tanimura , Toru Katagiri , Shoichiro Oda
发明人： Hisao Nakashima , Takeshi Hoshida , Takahito Tanimura , Toru Katagiri , Shoichiro Oda
IPC分类号： H04B10/00
CPC分类号： H04B10/2572 , H04B10/532 , H04B10/5561
摘要： An optical transmission system, where in an optical transmitter a detection bit having a specific pattern set according to the number of bits to be transmitted within one symbol time, is imparted with respect to a transmission signal in which transmission information has been encoded according to a preset format, and an optical signal generated by modulating light according to the transmission signal is transmitted to a transmission line. In an optical receiver, logic inversion or bit swap of received data is detected and compensated by using the detection bit included in the received signal, a decoding process of the compensated received signal is executed. As a result, when an optical signal capable of transmitting multi-bit information within one symbol time is transferred, it is possible to realize excellent transmission characteristics, by reliably compensating an error in received data caused by the modulation format or the multiplex system of the optical signal.
摘要翻译：一种光传输系统，其中在光发射机中，根据在一个符号时间内要发送的比特数的数量，具有特定模式集的检测比特，根据发送信号已被编码的发送信号预设格式和根据发送信号调制光产生的光信号被发送到传输线。在光接收机中，通过使用包含在接收信号中的检测位来检测和补偿接收数据的逻辑反转或位交换，执行经补偿的接收信号的解码处理。结果，当在一个符号时间内能够发送多位信息的光信号被传送时，通过可靠地补偿由调制格式或多路复用系统引起的接收数据中的错误，可以实现优异的传输特性光信号。

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