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61. 发明专利

JP2011250266A Optical receiver and optical transmission device 有权
标题翻译：光接收机和光传输设备
公开(公告)号：JP2011250266A
公开(公告)日：2011-12-08
申请号：JP2010122754
申请日：2010-05-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKEUCHI HIROSHI , MANDAI KOHEI , TAKATORI KOJI , FUKASHIRO YASUYUKI , TSUSHIMA HIDEAKI
IPC分类号： H04B10/2507 , H04B10/077 , H04B10/079 , H04B10/2513 , H04B10/2519 , H04B10/2525
CPC分类号： H04B10/25133
摘要： PROBLEM TO BE SOLVED: To provide an optical receiver and an optical transmission device which shorten a compensation dispersion value setting time of a variable dispersion compensation device.SOLUTION: An optical receiver selects a first and a second dispersion value, acquires in advance a stabilization time required to change a dispersion value used for compensation from the first dispersion value to the second, a variation time shorter than the stabilization time, and the difference between the dispersion value after the variation time and the second dispersion value, compensates an optical signal received by the selected first dispersion value, generates a first extraction information of a clock about the first dispersion value, changes the dispersion value used for compensation from the first dispersion value to the second, compensates the received optical signal by the dispersion value at the time the variation time has lapsed from the time the dispersion value started changing, generates a second extraction information of a clock about the dispersion value after the variation time, and compensates the optical signal by the dispersion value calculated based on the second dispersion value and the difference between the dispersion value after the variation time and the second dispersion value when the second extraction information shows possibility.
摘要翻译：解决的问题：提供一种缩短可变色散补偿装置的补偿色散值设定时间的光接收机和光传输装置。解决方案：光接收机选择第一和第二色散值，预先获得将用于补偿的色散值从第一色散值改变为第二色散所需的稳定时间，比稳定时间短的变化时间，并且变化时间之后的色散值与第二色散值之间的差异补偿由所选择的第一色散值接收的光信号，产生关于第一色散值的时钟的第一提取信息，改变用于补偿的色散值从第一色散值到第二色散值，从接收色散值开始变化的时刻起经过变化时间的色散值补偿接收到的光信号，生成关于变化后的色散值的时钟的第二提取信息时间，并通过基于s计算的色散值补偿光信号当第二提取信息显示可能性时，偏移色散值和变化时间之后的色散值与第二色散值之间的差异。版权所有（C）2012，JPO＆INPIT

62. 发明专利

JP4818142B2 Light receiving device and its control method, as well as, an optical transmission system 有权
公开(公告)号：JP4818142B2
公开(公告)日：2011-11-16
申请号：JP2007026772
申请日：2007-02-06
申请人：富士通株式会社
发明人：威小野 , 俊樹本多
IPC分类号： H04B10/2507 , H04B10/07 , H04B10/2513 , H04B10/548 , H04B10/564 , H04B10/58
CPC分类号： H04B10/25133 , H04B10/671

63. 发明专利

JP4796183B2 Optical transmission device 有权
公开(公告)号：JP4796183B2
公开(公告)日：2011-10-19
申请号：JP2009504952
申请日：2007-03-16
申请人：富士通株式会社
发明人：章三浦 , 寛己大井 , 隆文寺原
IPC分类号： H04B10/2507 , H04B10/2513 , H04B10/27 , H04B10/29 , H04J14/00 , H04J14/02 , H04L12/44
CPC分类号： H04Q11/0005 , H04B10/25133 , H04J14/0205 , H04J14/0208 , H04J14/0209 , H04J14/0212 , H04J14/0213 , H04J14/0217 , H04Q2011/0039 , H04Q2011/0049

64. 发明专利

JP2011199605A Digital sample processing method, digital sample processor, and program 有权
标题翻译：数字样品处理方法，数字样品处理器和程序
公开(公告)号：JP2011199605A
公开(公告)日：2011-10-06
申请号：JP2010064339
申请日：2010-03-19
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KOBAYASHI TAKAYUKI , SANO AKIHIDE , ISHIHARA KOICHI , MIYAMOTO YUTAKA
IPC分类号： H04B10/40 , H04B10/2507 , H04B10/2513 , H04B10/2569 , H04B10/50 , H04B10/516 , H04B10/524 , H04B10/532 , H04B10/556 , H04B10/58 , H04B10/60 , H04B10/61 , H04J11/00 , H04J14/00 , H04J14/04 , H04J14/06
摘要： PROBLEM TO BE SOLVED: To simplify a circuit configuration and to prevent the capture of the same polarized wave.SOLUTION: Tap coefficient computing circuits 20, 21 perform initial convergence using a blind algorithm (for instance, MMA: Multi-modulus Algorithm) capable of reproducing a carrier phase. By using the MMA, the output of a butterfly type FIR filter circuit 6 is turned to a state with the carrier phase automatically recovered. Even after switching to DD-LMS, frequency offset computing circuits 22, 23 continue operations with the same algorithm. The tap coefficient computing circuits 20, 21 compute an equating coefficient to be used in the butterfly type FIR filter circuit 6 so that the equating coefficient of a y-polarized wave which is a polarized wave component of multiple-value optical polarization multiplexed signals does not correlate with an equating coefficient of an x-polarized wave.
摘要翻译：要解决的问题：简化电路配置并防止捕获相同的极化波。解决方案：抽头系数计算电路20,21使用能够执行以下操作的盲算法（例如，MMA：多模算法）来执行初始会聚再现载波相位。通过使用MMA，蝶形FIR滤波器电路6的输出转变为载波相位自动恢复的状态。即使在切换到DD-LMS之后，频率偏移计算电路22,23也以相同的算法继续操作。抽头系数计算电路20,21计算在蝶型FIR滤波器电路6中使用的等值系数，使得作为多值光偏振复用信号的偏振波分量的y偏振波的等式系数不与x偏振波的等值系数相关。

65. 发明专利

JP2011182190A Light receiving device and clock generation method 有权
标题翻译：光接收装置和时钟产生方法
公开(公告)号：JP2011182190A
公开(公告)日：2011-09-15
申请号：JP2010044376
申请日：2010-03-01
申请人： Fujitsu Ltd , 富士通株式会社
发明人： NOBECHI KIYOTOSHI , MIZUGUCHI NORIAKI
IPC分类号： H04B10/2507 , H03L7/08 , H04B10/07 , H04B10/2513 , H04L7/02
CPC分类号： H04B10/25133 , H04B10/671 , H04B2210/252
摘要： PROBLEM TO BE SOLVED: To simply and promptly regulate a variance value, and to avoid the generation of an unlock state in regulating the variance value.
SOLUTION: A dispersion compensation part compensates the wavelength dispersion of a light signal by the use of a set variance value. A phase difference signal generation part generates a phase difference signal by calculating a phase difference between an external clock as a clock included in the light signal compensated by the dispersion compensation part and an internal clock as a clock used in an own device. A variance value regulation part regulates the variance value set by the dispersion compensation part. A restraining part suppresses a variation in the phase difference signal generated by the phase difference signal generation part when the variance value is regulated by the dispersion value regulation part. A clock generation part generates the internal clock synchronized with the phase of the external clock on the basis of the phase difference signal suppressed by a suppression part.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：简单和及时地调整方差值，并避免在调整方差值时产生解锁状态。解决方案：色散补偿部分通过使用设定的方差值补偿光信号的波长色散。相位差信号生成部通过计算作为包括在由色散补偿部补偿的光信号中的时钟的外部时钟与作为在本装置中使用的时钟的内部时钟之间的相位差来生成相位差信号。方差值调节部分调节由色散补偿部分设定的方差值。当方差值由色散值调节部分调节时，抑制部分抑制由相位差信号产生部分产生的相位差信号的变化。时钟生成部基于由抑制部抑制的相位差信号，生成与外部时钟的相位同步的内部时钟。版权所有（C）2011，JPO＆INPIT

66. 发明专利

JP4765559B2 Optical transmission system, node, optical transmission method, and program 有权
公开(公告)号：JP4765559B2
公开(公告)日：2011-09-07
申请号：JP2005319208
申请日：2005-11-02
申请人：三菱電機株式会社
发明人：栄一堀内 , 尚一郎妹尾 , 基文田辺 , 義昌馬場
IPC分类号： H04B10/2507 , H04B10/2513 , H04J14/00 , H04J14/02

67. 发明专利

JP4757702B2 Optical signal receiving device and an optical signal transmission system 有权
公开(公告)号：JP4757702B2
公开(公告)日：2011-08-24
申请号：JP2006120825
申请日：2006-04-25
申请人：三菱電機株式会社
发明人：亮藤枝
IPC分类号： H04B10/2507 , H04B10/07 , H04B10/2513 , H04J14/00 , H04J14/02

68. 发明专利

JP4757323B2 Waveform distortion compensation device 有权
公开(公告)号：JP4757323B2
公开(公告)日：2011-08-24
申请号：JP2009083641
申请日：2009-03-30
申请人：富士通株式会社
发明人：久雄中島 , 剛司星田 , 崇仁谷村
IPC分类号： H03M1/12 , H04B10/2507 , H04B10/2513 , H04B10/2569 , H04B10/516 , H04B10/548 , H04B10/58 , H04B10/61

69. 发明专利

JP2011155579A Optical transmission and reception system, and optical receiver 有权
标题翻译：光传输和接收系统以及光接收机
公开(公告)号：JP2011155579A
公开(公告)日：2011-08-11
申请号：JP2010016779
申请日：2010-01-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOTAKE HIDEAKI , KIKUCHI NOBUHIKO , BANDAI KOHEI
IPC分类号： H04J14/00 , H04B10/077 , H04B10/2507 , H04B10/2513 , H04B10/2569 , H04B10/40 , H04B10/50 , H04B10/532 , H04B10/548 , H04B10/58 , H04B10/60 , H04B10/64 , H04B10/66 , H04J14/04 , H04J14/06
CPC分类号： H04J14/06 , H04B10/2572 , H04B10/532 , H04B10/60 , H04B10/611 , H04B10/6161 , H04B10/6162
摘要： PROBLEM TO BE SOLVED: To allow a polarization dependent optical receiver to receive a high-speed optical signal becoming in a polarization scrambled state by a polarization scrambler, regardless of a polarization scrambling frequency. SOLUTION: An optical signal of an optical transmission part 110 is brought into a high-speed polarization scrambling state by a polarization scrambling part 140, and transmitted to an optical fiber transmission line 150 as the optical signal from the optical transmitter 10. The optical signal passing through the optical fiber transmission line 150 is inputted to an optical receiver 20. The optical signal inputted to the optical receiver 20 is converted into an electric signal by a polarization dependent photoelectric detection part 510. The converted electric signal is inputted to a digital signal processing part 520 having a polarization scrambling cancel part of canceling the polarization scrambling state by a digital signal processing operation. At the digital signal processing part 520, the polarization scrambling state of the electric signal is canceled, and a data signal is outputted. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了允许偏振相关光接收机接收由偏振加扰器变成偏振加扰状态的高速光信号，而与偏振加扰频率无关。解决方案：光传输部分110的光信号由偏振加扰部分140进入高速偏振加扰状态，并作为来自光发射机10的光信号传输到光纤传输线路150。通过光纤传输线150的光信号被输入到光接收机20.输入到光接收机20的光信号由偏振相关光电检测部分510转换成电信号。转换的电信号被输入到具有通过数字信号处理操作来消除偏振加扰状态的偏振加扰消除部分的数字信号处理部分520。在数字信号处理部分520处，消除电信号的偏振加扰状态，并输出数据信号。版权所有（C）2011，JPO＆INPIT

70. 发明专利

JP2011114402A Dispersion compensation device, optical receiver, dispersion compensation method, and method of receiving light 有权
标题翻译：分散补偿装置，光接收器，分散补偿方法和接收光的方法
公开(公告)号：JP2011114402A
公开(公告)日：2011-06-09
申请号：JP2009266681
申请日：2009-11-24
申请人： Fujitsu Ltd , 富士通株式会社
发明人： MURAKAMI MAKOTO , OTANI TOSHIHIRO
IPC分类号： H04B10/2507 , H04B10/07 , H04B10/079 , H04B10/2513 , H04B10/2519 , H04B10/2525
CPC分类号： H04B10/25133 , H04B2210/252
摘要： PROBLEM TO BE SOLVED: To quickly control dispersion compensation without deteriorating communication quality by efficiently controlling the amount of compensation in dispersion compensation in a proper direction. SOLUTION: A TODC 134 performs dispersion compensation of an optical signal to be received by a variable amount of compensation. An optical coupler 133 branches the optical signal. A fixed DC 135 for monitoring performs dispersion compensation of the optical signal branched by the optical coupler 133 by an excessively small or large compensation amount with respect to the amount of dispersion in the optical signal. An optical receiver 136 for monitoring monitors the communication quality of the optical signal dispersion-compensated by the fixed DC 135 for monitoring. A control unit 137 determines an increase/decrease direction of the amount of dispersion based on an increase/decrease direction of communication quality monitored by the optical receiver 136 for monitoring. The control unit 137 controls an increase/decrease in the amount of compensation of the TODC 134, based on the result of determining the amount of dispersion. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过在适当的方向上有效地控制色散补偿中的补偿量来快速地控制色散补偿而不降低通信质量。解决方案：TODC134通过可变量的补偿对待接收的光信号进行色散补偿。光耦合器133分支光信号。用于监视的固定DC 135对于由光耦合器133分支的光信号的色散补偿相对于光信号中的色散量而言过大或较大的补偿量进行色散补偿。用于监视的光接收器136监视由固定DC 135进行色散补偿的光信号的通信质量用于监视。控制单元137基于由用于监视的光接收器136监视的通信质量的增减方向来确定色散量的增减方向。控制单元137基于确定分散量的结果来控制TODC 134的补偿量的增加/减少。版权所有（C）2011，JPO＆INPIT

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