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1. 发明公开

EP2672635A4 OPTICAL RECEIVER, POLARIZATION SEPARATION DEVICE AND POLARIZATION SEPARATION METHOD 审中-公开
标题翻译：光接收机，偏振分离设备和偏振分离
公开(公告)号：EP2672635A4
公开(公告)日：2015-09-09
申请号：EP11857426
申请日：2011-06-15
申请人： NEC CORP
发明人： OGASAHARA DAISAKU
IPC分类号： H04B10/61 , H04J14/00 , H04J14/04 , H04J14/06 , H04B10/04 , H04B10/06 , H04B10/142 , H04B10/152
CPC分类号： H04B10/6162 , H04B10/6166 , H04J14/06

2. 发明公开

EP2650717A4 OPTICAL SIGNAL CONTROL DEVICE AND OPTICAL SIGNAL CONTROL METHOD 审中-公开
标题翻译：一种用于控制光信号的及其控制方法光信号的
公开(公告)号：EP2650717A4
公开(公告)日：2014-11-05
申请号：EP11847838
申请日：2011-12-06
申请人： NEC CORP
发明人： SATOH MINETO , KATO TOMOAKI , SATO KENJI
IPC分类号： G02F1/01 , G02F1/035 , H04B10/50 , H04B10/04 , H04B10/06 , H04B10/142 , H04B10/152
CPC分类号： H04B10/516 , H04B10/50

3. 发明公开

EP2639629A1 OPTICAL PHASE MODULATION CIRCUIT AND METHOD OF OPTICAL PHASE MODULATION 审中-公开
标题翻译：电路，其光相位调制光相位调制和方法
公开(公告)号：EP2639629A1
公开(公告)日：2013-09-18
申请号：EP11840581.0
申请日：2011-10-21
申请人： NEC Corporation
发明人： NOGUCHI, Hidemi
IPC分类号： G02F1/03 , H04B10/04 , H04B10/06 , H04B10/142 , H04B10/152
CPC分类号： G02F1/0121 , G02F1/0327 , G02F1/0356 , G02F2201/16 , H04B10/5561
摘要： To provide an optical phase modulation circuit and an optical phase modulation method capable of achieving a high-speed operation without increasing the power consumption. An optical phase modulation circuit according to the present invention includes an optical modulation unit 50 that includes a plurality of division electrodes 12 to 15 connected in tandem and generates a modulation signal by summing up optical signals modulated by using respective division electrodes, drive circuits 8 to 11 that drive the plurality of division electrodes, and a modulation timing control unit 60 that controls timings at which the optical signals are modulated in the plurality of division electrodes 12 to 15, by controlling an operation timing of the drive circuits 8 to 11.
摘要翻译：以提供光学相位调制电路，并能够实现高速运算，而不增加功率消耗的光学相位调制方法。光相位调制电路雅丁到本发明包括在光调制部50也包括：分割电极12至15连接在串联和基因率的多个由总结通过使用respectivement分割电极调制的光信号的调制信号，驱动电路8至 11那样，通过控制至第11的驱动电路8的操作时序驱动电极分割的多个，并且一个调制定时控制单元60点控制的定时并在该光信号在分割电极12至15的多个调制

4. 发明公开

EP2569878A1 COMPENSATING FOR END-TO-END GROUP DELAY RIPPLES 审中-公开
标题翻译：补偿FOR END-TO-END-GROUP延迟变化
公开(公告)号：EP2569878A1
公开(公告)日：2013-03-20
申请号：EP11781258.6
申请日：2011-05-12
申请人： Verizon Patent and Licensing Inc.
发明人： XIA, Tiejun J. , WELLBROCK, Glenn, A.
IPC分类号： H04B10/06
CPC分类号： H04B10/2513
摘要： A device may include a group delay monitor and a signal receiver. The group delay monitor may be configured to obtain group delay data corresponding to group delay of an optical signal and provide the group delay data to a signal receiver. The signal receiver configured to obtain a time-domain digital signal corresponding to the optical signal, convert the time-domain digital signal into a frequency-domain signal, apply a digital filter constructed based on the group delay data to the frequency-domain signal to obtain an output signal, and transmit the output signal.

5. 发明公开

EP2528251A1 OPTICAL COMMUNICATION SYSTEM, OPTICAL TRANSMITTER, OPTICAL RECEIVER AND OPTICAL TRANSPONDER 审中-公开
标题翻译： OPTISCHER发射器，OPTISCHER发光员，OPTISCHEREMPFÄNGERUND OPTISCHER TRANSPONDER
公开(公告)号：EP2528251A1
公开(公告)日：2012-11-28
申请号：EP10843054.7
申请日：2010-01-18
申请人： Hitachi, Ltd.
发明人： SASAKI, Shinya
IPC分类号： H04B10/02 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/142 , H04B10/152 , H04B10/18 , H04B10/26 , H04B10/28 , H04J14/00 , H04J14/02
CPC分类号： H04J14/0298 , H04B10/548 , H04L27/2614 , H04L27/2621
摘要： In an optical OFDM communication system, the PAPR is reduced. A sinusoidal wave output from an RF oscillator provided in a transmitter is phase-modulated using a baseband OFDM signal output from a transmitter-signal processing unit 100, and this phase-modulated sinusoidal wave is used to modulate an optical wave. Using this light as signal light to achieve optical communication enables a low PAPR value such as 6 dB or less to be achieved where the photoelectric power is high in an optical fiber, thus enabling the above described problems to be solved. This signal light travels through an optical fiber serving as the transmission line and is converted by a receiver into an electric signal. The electric signal is synchronously detected using a sinusoidal wave output from an RF oscillator oscillating at the same frequency as the above RF oscillator provided in the transmitter. Ordinary OFDM signal processing for reception is performed on the output of the synchronous detection to recover data.
摘要翻译：在光OFDM通信系统中，PAPR减小。使用从发射机 - 信号处理单元100输出的基带OFDM信号对发射机中提供的RF振荡器输出的正弦波进行相位调制，并且使用该相位调制正弦波来调制光波。使用该光作为信号光来实现光通信，能够实现光纤中光电功率高的6dB以下的低PAPR值，从而能够解决上述问题。该信号光通过用作传输线的光纤，并由接收机转换成电信号。使用来自与在发射机中提供的上述RF振荡器相同的频率振荡的RF振荡器的正弦波输出来同步检测电信号。对同步检测的输出执行用于接收的普通OFDM信号处理以恢复数据。

6. 发明公开

EP2521293A1 TRANSMISSION METHOD, RECEPTION METHOD, TRANSMITTER APPARATUS, AND RECEIVER APPARATUS 有权
标题翻译： SENDEVERFAHREN，EMPFANGSVERFAHREN，SENDEVORRICHTUNG UND EMPFANGSVORRICHTUNG
公开(公告)号：EP2521293A1
公开(公告)日：2012-11-07
申请号：EP11739836.2
申请日：2011-02-03
申请人： Nippon Telegraph And Telephone Corporation
发明人： NAKAGAWA Tadao , YAMAZAKI Etsushi , ISHIHARA Koichi , KOBAYASHI Takayuki , KUDO Riichi , TAKATORI Yasushi , MATSUI Munehiro , MIYAMOTO Yutaka , SANO Akihide , YOSHIDA Eiji , MIZOGUCHI Masato
IPC分类号： H04J11/00 , G02F2/00 , H04B10/02 , H04B10/04 , H04B10/06 , H04B10/142 , H04B10/152 , H04B10/18 , H04J14/00 , H04J14/04 , H04J14/06
CPC分类号： H04B10/5053 , G02F1/0136 , H04B10/532 , H04B10/60 , H04J14/06
摘要： A polarization state of a transmission signal can be changed at a high speed based on a symbol-rate By switching a first switch, a second switch, and a third switch with time, one of an X-polarized wave_I-signal as a Y-polarized wave_I-signal, a signal caused by performing logical inversion for an X-polarized wave_I-signal, an X-polarized wave_Q-signal and a signal caused by logical inversion for an X-polarized wave_Q-singal is input to a second modulator. Further, by switching the first switch, the second switch and the third switch with time, the second modulator is input one of the X-polarized wave_I-singal as the Y-polarized wave_Q-signal, the X-polarized wave_I-signal, the signal caused by performing logical inversion for the X-polarized wave_I-signal, the X-polarized wave_Q-signal and the signal caused by performing logical inversion for the X-polarized wave_Q-signal. Thereby, a polarization state of a transmission signal can be changed at high speed based on a symbol-rate speed.
摘要翻译：传输信号的偏振状态可以基于符号速率以高速度改变。通过随时间切换第一开关，第二开关和第三开关，X极化波I_信号之一作为Y轴，通过对X偏振波I_信号进行逻辑反转而产生的信号，X偏振波Q信号以及由X偏振波Q_信号的逻辑反相引起的信号被输入到第二调制器。此外，通过随时间切换第一开关，第二开关和第三开关，第二调制器输入X偏振波I-单位之一作为Y偏振波Q_信号，X偏振波I信号，通过对X偏振波_I信号进行逻辑反转而产生的信号，X偏振波Q信号和由X偏振波Q_信号执行逻辑反相引起的信号。由此，可以基于符号速度速度高速地改变发送信号的偏振状态。

7. 发明公开

EP2406900A1 DUAL STAGE CARRIER PHASE ESTIMATION IN A COHERENT OPTICAL SIGNAL RECEIVER 审中-公开
标题翻译：双级载波相位估计在相干光信号接收机
公开(公告)号：EP2406900A1
公开(公告)日：2012-01-18
申请号：EP10751232.9
申请日：2010-03-08
申请人： TYCO ELECTRONICS SUBSEA COMMUNICATIONS LLC
发明人： CAI, Yi
IPC分类号： H04B10/06
CPC分类号： H04B10/61 , H04B10/611 , H04B10/612 , H04B10/614 , H04B10/6162 , H04B10/6164 , H04B10/6165 , H04L27/223
摘要： A system and method implementing dual stage carrier phase estimation (CPE) in a coherent receiver for an optical fiber communication system. In the first stage, a feed-forward CPE is implemented to make an initial carrier phase estimation of a training sequence. The initial carrier phase estimation is coupled to the second stage which implements a decision-feedback CPE. After a training period, accurate bit decision for system traffic can be achieved using the decision-feedback CPE.

8. 发明授权

EP1585234B1 Photomischdetektor (PMD)-System und Verfahren zum Betreiben desselben 有权转让
标题翻译：光混合器装置（PMD）系统和用于操作其的方法
公开(公告)号：EP1585234B1
公开(公告)日：2011-10-12
申请号：EP05102194.7
申请日：2005-03-18
申请人： PMDTechnologies GmbH , Audi Electronics Venture GmbH
发明人： Xu, Zhanping , Frey, Jochen , Möller, Tobias , Kraft, Holger , Riedel, Helmut, Dr.
IPC分类号： H04B10/06 , H03D9/06
CPC分类号： H03D9/00

9. 发明公开

EP2365647A1 HIGH-SPEED PULSED HOMODYNE DETECTOR IN OPTICAL COMMUNICATION WAVELENGTH BAND 审中-公开
标题翻译：光通信波长带中的高速脉冲正交检测器
公开(公告)号：EP2365647A1
公开(公告)日：2011-09-14
申请号：EP09815952.8
申请日：2009-03-23
申请人： Nihon University
发明人： INOUE, Shuichiro , NAMEKATA, Naoto
IPC分类号： H04B10/00 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/142 , H04B10/152 , H04B10/26 , H04B10/28
CPC分类号： H04B10/63
摘要： The invention aims to raise operational frequency and S/N ratio of a pulsed homodyne detector to measure the quadrature amplitude of the signal pulse light. The local pulse light in telecom band is yielded at repetition rate of 80MHz. Two output lights are generated by interference of the local pulse light and the signal pulse light. A first photodiode and a second photodiode are connected differentially. The first photodiode converts one side output light to an electric signal. The second photodiode converts the other side output light to another electric signal. An M-derived low-pass filter eliminates the third harmonics of the local pulse light. Moreover, the higher frequency components than triple frequency of the repetition rate are eliminated. In this way, even when it is operated at high repetition rate of 80MHz at maximum, the quadrature amplitude of the signal pulse light can be measured with high quantum efficiency of about 90% and with S/N ratio of more than 10dB.
摘要翻译：本发明旨在提高脉冲零差检测器的工作频率和S / N比以测量信号脉冲光的正交幅度。电信频段的本地脉冲光以80MHz的重复频率产生。两个输出光源是由本地脉冲光和信号脉冲光的干涉产生的。第一光电二极管和第二光电二极管差分连接。第一个光电二极管将一个侧面的输出光转换成电信号。第二光电二极管将另一侧的输出光转换为另一电信号。 M衍生的低通滤波器消除了本地脉冲光的三次谐波。而且，消除了比重复频率的三倍频率更高的频率分量。这样，即使以最高80MHz的高重复率工作，也可以以约90％的高量子效率和大于10dB的S / N比测量信号脉冲光的正交振幅。

10. 发明公开

EP2365413A1 VOLTAGE GENERATOR, CONTROL CIRCUIT, VECTOR SYNTHESIS TYPE PHASE SHIFTER AND OPTICAL TRANSCEIVER 有权
标题翻译： SPANNUNGSGENERATOR，STEUERSCHALTUNG，VEKTORSYNTHESE-PHASENSCHIEBER UND OPTISCHES SENDE- /EMPFANGSGERÄT
公开(公告)号：EP2365413A1
公开(公告)日：2011-09-14
申请号：EP09831750.6
申请日：2009-08-12
申请人： Nippon Telegraph And Telephone Corporation
发明人： NOSAKA,Hideyuki , NAGATANI, Munehiko , YAMANAKA,Shogo , SANO,Kimikazu , MURATA,Koichi , ONODERA,Kiyomitsu , ENOKI,Takatomo
IPC分类号： G05F3/08 , H03F3/45 , H03H11/20 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/142 , H04B10/152 , H04B10/26 , H04B10/28
CPC分类号： H03H11/20 , H03F3/45085 , H03F3/45475 , H03F2200/336 , H03F2200/408 , H03F2203/45138 , H03F2203/45352 , H03F2203/45498 , H03F2203/45702
摘要： A voltage generator (400) includes a resistor ladder including resistors (4000 - 4008) which divide a supplied voltage to generate a plurality of reference voltages, a resistor (4009) provided between a power supply voltage (VCC) and one terminal of the resistor ladder, and a resistor (4010) provided between a power supply voltage (VEE) and the other terminal of the resistor ladder.
摘要翻译：电压发生器（400）包括电阻梯（包括分压所提供的电压以产生多个参考电压的电阻器），电阻器（4009），设置在电源电压（VCC）和电阻器的一个端子之间梯形电阻器，以及设置在电源电压（VEE）和电阻梯的另一端子之间的电阻器（4010）。

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