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1. 发明申请

US20120170928A1 OPTICAL TRANSMITTER, OPTICAL TRANSMISSION METHOD, AND WAVELENGTH-SELECTIVE VARIABLE DELAYER 有权
标题翻译：光学发射器，光学传输方法和波长选择性可变延迟器
公开(公告)号：US20120170928A1
公开(公告)日：2012-07-05
申请号：US11939646
申请日：2007-11-14
申请人： Toshiki TANAKA , Hisao Nakashima , Takeshi Hoshida , Toru Katagiri , Hiroki Ooi , Akira Miura
发明人： Toshiki TANAKA , Hisao Nakashima , Takeshi Hoshida , Toru Katagiri , Hiroki Ooi , Akira Miura
IPC分类号： H04J14/02 , H04B10/08
CPC分类号： H04J14/0286 , H04B10/2557 , H04B10/516 , H04J14/0204 , H04J14/0212 , H04J14/0217 , H04J14/0219 , H04J14/022 , H04J14/0221 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0283
摘要： An optical transmitter is provided for transmitting a wavelength multiplexed signal comprising an intensity modulation optical signal and a phase modulation optical signal through a transmission line. The optical transmitter includes a bit time difference given signal generator for generating at least two optical signals having a bit time difference therebetween, from the wavelength multiplexed signal. The optical transmitter further includes a wavelength multiplexed signal output unit to which at least two optical signals are input from the bit time difference given signal generator, and which generates and outputs a wavelength multiplexed signal in which the bit time difference was given between the phase modulation optical signal and the phase modulation optical signal.
摘要翻译：提供了一种用于通过传输线传输包括强度调制光信号和相位调制光信号的波分复用信号的光发射机。所述光发射机包括位时间差给定信号发生器，用于从所述波长复用信号产生具有位时间差的至少两个光信号。光发射机还包括波长多路复用信号输出单元，从比特时间差给定信号发生器输入至少两个光信号，并且生成并输出在相位调制之间给出比特时间差的波长多路复用信号光信号和强度调制光信号。

2. 发明授权

US08625996B2 Optical transmitter, optical transmission method, and wavelength-selective variable delayer 有权
标题翻译：光发射机，光传输方式和波长选择可变延迟器
公开(公告)号：US08625996B2
公开(公告)日：2014-01-07
申请号：US11939646
申请日：2007-11-14
申请人： Toshiki Tanaka , Hisao Nakashima , Takeshi Hoshida , Toru Katagiri , Hiroki Ooi , Akira Miura
发明人： Toshiki Tanaka , Hisao Nakashima , Takeshi Hoshida , Toru Katagiri , Hiroki Ooi , Akira Miura
IPC分类号： H04B10/00
CPC分类号： H04J14/0286 , H04B10/2557 , H04B10/516 , H04J14/0204 , H04J14/0212 , H04J14/0217 , H04J14/0219 , H04J14/022 , H04J14/0221 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0283
摘要： An optical transmitter is provided for transmitting a wavelength multiplexed signal comprising an intensity modulation optical signal and a phase modulation optical signal through a transmission line. The optical transmitter includes a bit time difference given signal generator for generating at least two optical signals having a bit time difference therebetween, from the wavelength multiplexed signal. The optical transmitter further includes a wavelength multiplexed signal output unit to which at least two optical signals are input from the bit time difference given signal generator, and which generates and outputs a wavelength multiplexed signal in which the bit time difference was given between the phase modulation optical signal and the phase modulation optical signal.
摘要翻译：提供了一种用于通过传输线传输包括强度调制光信号和相位调制光信号的波分复用信号的光发射机。所述光发射机包括位时间差给定信号发生器，用于从所述波长复用信号产生具有位时间差的至少两个光信号。光发射机还包括波长多路复用信号输出单元，至少两个光信号从比特时间差给定信号发生器输入到该波长多路复用信号输出单元，并且其生成并输出波长多路复用信号，其中在强度调制光信号和相位调制光信号。

3. 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.

4. 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。

5. 发明授权

US08594508B2 Optical transmission system 有权
标题翻译：光传输系统
公开(公告)号：US08594508B2
公开(公告)日：2013-11-26
申请号：US13137024
申请日：2011-07-15
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。

6. 发明申请

US20110274430A1 Optical transmission system 有权
标题翻译：光传输系统
公开(公告)号：US20110274430A1
公开(公告)日：2011-11-10
申请号：US13137024
申请日：2011-07-15
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： H04J14/06
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。

7. 发明申请

US20080080872A1 OPTICAL TRANSMITTER 有权
标题翻译：光学发射器
公开(公告)号：US20080080872A1
公开(公告)日：2008-04-03
申请号：US11740954
申请日：2007-04-27
申请人： Toshiki Tanaka , Takeshi Hoshida , Hisao Nakashima , Yuichi Akiyama
发明人： Toshiki Tanaka , Takeshi Hoshida , Hisao Nakashima , Yuichi Akiyama
IPC分类号： H04B10/04
CPC分类号： H04B10/50572 , H04B10/505 , H04B10/50575 , H04B10/564
摘要： A signal Data1 and Data2 are output from a DQPSK signal source. The output signal is input to the modulator drivers 1 and 2 of the differential output. A drive signal is applied from the drivers 1 and 2 to a modulator, and modulated light is output. An optical coupler 20 branches modulator output, and a power monitor 21 detects the power of the branched light. A detection result is transmitted to an amplitude control unit 22. The amplitude control unit 22 adjusts the amplitude of the drivers 1 and 2 such that the detection result of the power monitor 21 can be the maximum.
摘要翻译：从DQPSK信号源输出信号数据1和数据2。输出信号被输入到差分输出的调制器驱动器1和2。将驱动信号从驱动器1和2施加到调制器，并输出调制光。光耦合器20分支调制器输出，功率监视器21检测分支光的功率。检测结果被发送到振幅控制单元22。振幅控制单元22调节驱动器1,2的振幅，使得功率监视器21的检测结果最大。

8. 发明授权

US08145069B2 Optical transmitter 有权
标题翻译：光发射机
公开(公告)号：US08145069B2
公开(公告)日：2012-03-27
申请号：US11740954
申请日：2007-04-27
申请人： Toshiki Tanaka , Takeshi Hoshida , Hisao Nakashima , Yuichi Akiyama
发明人： Toshiki Tanaka , Takeshi Hoshida , Hisao Nakashima , Yuichi Akiyama
IPC分类号： H04B10/04
CPC分类号： H04B10/50572 , H04B10/505 , H04B10/50575 , H04B10/564
摘要： A signal Data1 and Data2 are output from a DQPSK signal source. The output signal is input to the modulator drivers 1 and 2 of the differential output. A drive signal is applied from the drivers 1 and 2 to a modulator, and modulated light is output. An optical coupler 20 branches modulator output, and a power monitor 21 detects the power of the branched light. A detection result is transmitted to an amplitude control unit 22. The amplitude control unit 22 adjusts the amplitude of the drivers 1 and 2 such that the detection result of the power monitor 21 can be the maximum.
摘要翻译：从DQPSK信号源输出信号Data1和Data2。输出信号被输入到差分输出的调制器驱动器1和2。将驱动信号从驱动器1和2施加到调制器，并输出调制光。光耦合器20分支调制器输出，功率监视器21检测分支光的功率。检测结果被发送到幅度控制单元22.振幅控制单元22调节驱动器1和2的振幅，使得功率监视器21的检测结果可以是最大的。

9. 发明授权

US08660438B2 Digital coherent receiver and receiving method 有权
标题翻译：数字相干接收机和接收方式
公开(公告)号：US08660438B2
公开(公告)日：2014-02-25
申请号：US13083723
申请日：2011-04-11
申请人： Hisao Nakashima , Takeshi Hoshida , Kosuke Komaki
发明人： Hisao Nakashima , Takeshi Hoshida , Kosuke Komaki
IPC分类号： H04B10/06
CPC分类号： H04B10/611 , H04B10/6164 , H04L27/223
摘要： A digital coherent receiver includes a front end, an A/D convertor, and a processor. The front end converts a light signal into an electric signal by using a signal light and a local oscillator light. The A/D convertor converts the electric signal of the front end into a digital signal. The processor calculates a spectrum gravity center of the digital signal converted by the A/D convertor, estimates a frequency offset of the digital signal based on the calculated spectrum gravity center, and reduces the frequency offset of the digital signal based on the estimated frequency offset.
摘要翻译：数字相干接收机包括前端，A / D转换器和处理器。前端通过使用信号灯和本地振荡器光将光信号转换为电信号。 A / D转换器将前端的电信号转换为数字信号。处理器计算由A / D转换器转换的数字信号的频谱重心，基于所计算的频谱重心估计数字信号的频率偏移，并且基于估计的频率偏移来减少数字信号的频率偏移。

10. 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。

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