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91. 发明专利

JP2009246621A Optical receiver 审中-公开
标题翻译：光接收机
公开(公告)号：JP2009246621A
公开(公告)日：2009-10-22
申请号：JP2008089624
申请日：2008-03-31
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： FUKUSHIMA SEIJI , OKI AKIRA , KANAZAWA SHIGERU , OKADA AKIRA
IPC分类号： H04B10/2507 , H01L31/10 , H04B10/07 , H04B10/2513 , H04B10/293 , H04B10/40 , H04B10/50 , H04B10/564 , H04B10/572 , H04B10/60 , H04B10/67
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive and small-sized optical receiver having at least either high-overload resistance and high distribution compensation capability.
SOLUTION: The invention relates to the optical receiver internally including: a diffraction grating 7 for reflecting and diffracting an optical signal made incident through an optical fiber 1; a diaphragm 12 for passing a part of the optical signal reflected and diffracted by the diffraction grating 7; an angle adjusting element for adjusting an angle of the diffraction grating 7 with respect to the incident optical signal to pass through the diaphragm 12 only one of optical signal reflected by the diffraction grating 7 and a plurality of optical signals diffracted by the diffraction grating 7 and to adjust the quantity of light in the optical signal that passes through the diaphragm 12; and a photo-detector 8 on which the optical signal passed through the diaphragm 12 is made incident.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供具有至少高过载电阻和高分配补偿能力的廉价且小尺寸的光接收机。解决方案：本发明涉及光接收器，其包括：衍射光栅7，用于反射和衍射通过光纤1入射的光信号; 用于使由衍射光栅7反射和衍射的光信号的一部分通过的光阑12; 用于调整衍射光栅7相对于入射光信号的角度的角度调节元件仅通过光阑12仅由衍射光栅7反射的光信号和由衍射光栅7衍射的多个光信号和以调节通过隔膜12的光信号中的光量; 光信号通过隔膜12的光检测器8入射。版权所有（C）2010，JPO＆INPIT

92. 发明专利

JP2009231881A Pre-distortion transmitter and pre-distortion transmission system 有权
标题翻译：预失真发射机和预失真传输系统
公开(公告)号：JP2009231881A
公开(公告)日：2009-10-08
申请号：JP2008071260
申请日：2008-03-19
申请人： Hitachi Communication Technologies Ltd , 株式会社日立コミュニケーションテクノロジー
发明人： KIKUCHI NOBUHIKO
IPC分类号： H04B10/2507 , H04B10/2513 , H04B10/2525 , H04B10/516 , H04B10/61
CPC分类号： H04B10/25137 , H04B10/5055 , H04B2210/254
摘要： PROBLEM TO BE SOLVED: To eliminate the degradation in transmission characteristics of a one-sample/bit optical duobinary system. SOLUTION: The pre-distortion transmitter includes: a laser light source; a duobinary encoding circuit; a pre-distortion circuit which applies an inverse function of wavelength dispersion; two or more DA converters; and an optical electric field modulator having two or more electric signal input terminals. The pre-distortion transmitter converts a digital information signal of predetermined symbol time to be transmitted into a digital complex signal including one sample point for each symbol by the duobinary encoding circuit, equalizes transmission degradation of the digital complex signal by the pre-distortion circuit, converts the equalized digital complex signal into an analog signal by the DA converters and suppresses a signal leaking exceeding a Nyquist bandwidth among converted analog signal by ≥23 dB, and modulates light output from the laser light source into an optical electric field signal using the analog signal by the optical electric field modulator and transmits the modulated optical electric field signal. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：消除单样本/位光学双二进制系统的传输特性的降低。解决方案：预失真发射机包括：激光源; 双二进制编码电路; 施加波长色散的反函数的预失真电路; 两个或多个DA转换器; 以及具有两个以上的电信号输入端子的光电调制器。预失真发送器将预定符号时间的数字信息信号通过双二进制编码电路转换为包含每个符号的一个采样点的数字复合信号，均衡由预失真电路产生的数字复信号的传输劣化，通过DA转换器将均衡的数字复合信号转换为模拟信号，并且将转换的模拟信号之间的超过奈奎斯特带宽的信号抑制≥23dB，并且使用模拟信号将激光源的光输出调制为光电信号信号由光电调制器发射并传输调制的光电信号。版权所有（C）2010，JPO＆INPIT

93. 发明专利

JP2009213069A Tap coefficient controller for transversal filter and control method for tap coefficient, optical reception device, and optical communication system 有权
标题翻译：用于TAP系统，光接收设备和光通信系统的横向滤波器和控制方法的TAP系数控制器
公开(公告)号：JP2009213069A
公开(公告)日：2009-09-17
申请号：JP2008056557
申请日：2008-03-06
申请人： Fujitsu Ltd , 富士通株式会社
发明人： TANAKA TOSHIKI , AKIYAMA YUICHI
IPC分类号： H04B3/04 , H03H15/00 , H03H21/00 , H04B10/07 , H04B10/2513 , H04B10/28 , H04B10/40 , H04B10/50 , H04B10/556 , H04B10/60 , H04B10/67 , H04B10/69
CPC分类号： H04B10/6971
摘要： PROBLEM TO BE SOLVED: To solve problems arising when a tap coefficient of a transversal filter is brought variable control in an optical reception device performing wavelength qualization on a reception signal by an electric dispersion compensator.
SOLUTION: A tap coefficient controller (10) includes an oscillation circuit (14a, 14c) that generates a predetermined vibration signal, an adder (15a, 15c, 16a, 16c) which periodically adds the vibration signal to a tap coefficient of one of taps of the transversal filter (5a, 5b) having the one or more taps, a quality measurement unit (20) which measures signal quality of an output signal of the transversal filter, and a tap coefficient adjustment unit (12) which suitably controls the value of the tap coefficient so that the amount of variation in signal quality of the output signal caused when the vibration signal is added to the tap coefficient has an optimum value.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：为了解决在通过电色散补偿器对接收信号进行波长鉴定的光接收装置中对横向滤波器的抽头系数进行可变控制时产生的问题。抽头系数控制器（10）包括产生预定振动信号的振荡电路（14a，14c），周期性地将振动信号添加到抽头系数的加法器（15a，15c，16a，16c）具有一个或多个抽头的横向滤波器（5a，5b）的抽头中的一个，测量横向滤波器的输出信号的信号质量的质量测量单元（20）和适当地选择的抽头系数调整单元控制抽头系数的值，使得当将振动信号添加到抽头系数时引起的输出信号的信号质量的变化量具有最佳值。版权所有（C）2009，JPO＆INPIT

94. 发明专利

JP2009171328A Optical transmission system and control method thereof 有权
标题翻译：光传输系统及其控制方法
公开(公告)号：JP2009171328A
公开(公告)日：2009-07-30
申请号：JP2008008262
申请日：2008-01-17
申请人： Sumitomo Electric Ind Ltd , 住友電気工業株式会社
发明人： KAMISUGI HIDEAKI
IPC分类号： H04B3/04 , H03H17/02 , H04B10/2507 , H04B10/2513 , H04B10/2581 , H04B10/524 , H04B10/58 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To lower house-side power consumption and also to reduce costs while preventing an optical waveform from deteriorating. SOLUTION: An optical transmission system 1 is an optical transmission system that transmits a down optical signal, sent from an office-side transceiver 2 to a house-side transceiver 3, and an up optical signal, sent from the house-side transceiver 3 to the station-side transceiver 2 and having a different wavelength from the down optical signal, using a multimode optical fiber 4. The station-side tranceiver 2 includes an equalizer 20 wherein a tap coefficient for correcting the signal waveform of the up signal from the house-side tranceiver 3 is set and an equalizer 16 wherein a tap coefficient for correcting the down signal is set, the tap coefficient of the equalizer 16 being set corresponding to the tap coefficient of the equalizer 20. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：降低住宅侧的功耗并降低成本，同时防止光波形恶化。光传输系统1是将从办公侧收发器2发送到家用收发器3的下行光信号和从房屋侧发送的上行光信号发送的光传输系统收发机3到站侧收发机2，并且使用多模光纤4具有与下光信号不同的波长。站侧收发器2包括均衡器20，其中用于校正上行信号的信号波形的抽头系数设置了室侧收发器3，并且设置用于校正下降信号的抽头系数的均衡器16，均衡器16的抽头系数被设置为与均衡器20的抽头系数相对应。COPYRIGHT :(（ C）2009年，JPO＆INPIT

95. 发明专利

JP4278332B2 有权
公开(公告)号：JP4278332B2
公开(公告)日：2009-06-10
申请号：JP2002040855
申请日：2002-02-18
IPC分类号： G02F1/01 , H04B10/2507 , H04B10/2513 , H04B10/516 , H04B10/548 , H04B10/556 , H04B10/588 , H04B10/61

96. 发明专利

JP2009117921A Light receiver and its control method 审中-公开
标题翻译：光接收机及其控制方法
公开(公告)号：JP2009117921A
公开(公告)日：2009-05-28
申请号：JP2007285503
申请日：2007-11-01
申请人： Sumitomo Electric Ind Ltd , 住友電気工業株式会社
发明人： ISHIBASHI HIROTO
IPC分类号： H04B10/2507 , H04B10/07 , H04B10/2513 , H04B10/40 , H04B10/50 , H04B10/60 , H04B10/69
CPC分类号： H04B10/2513 , H04B10/697
摘要： PROBLEM TO BE SOLVED: To adjust the compensation coefficients of an EDC circuit without stopping a light receiver in a light receiver having an EDC circuit and a control method of a light receiver.
SOLUTION: When a first EDC circuit 4a is outputting a signal being received by a CDR circuit 8 and a difference represented by a first differential signal K2 from the first EDC circuit 4a exceeds a predetermined standard difference, a controller 10 outputs an instruction for adjusting tap coefficients to a second EDC circuit 4b, and selects the second EDC circuit 4b as one dispersion compensation circuit for outputting a signal being received by the CDR circuit 8 when a difference represented by a second differential signal K4 from the second EDC circuit 4b converges after the instruction is outputted, and a selector 6 performs switching in synchronization with a regenerated clock when a switching instruction of the EDC circuit is outputted from the controller 10.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：在具有EDC电路的光接收器和光接收器的控制方法中，调节EDC电路的补偿系数而不停止光接收器。解决方案：当第一EDC电路4a正在输出由CDR电路8接收的信号，并且来自第一EDC电路4a的由第一差分信号K2表示的差超过预定的标准差时，控制器10输出指令用于将抽头系数调整到第二EDC电路4b，并且当由来自第二EDC电路4b的第二差分信号K4表示的差异时，选择第二EDC电路4b作为一个色散补偿电路，用于输出由CDR电路8接收的信号在输出指令之后收敛，并且当从控制器10输出EDC电路的切换指令时，选择器6与再生时钟同步地执行切换。（C）2009，JPO＆INPIT

97. 发明专利

JP2009081747A Four-value phase modulator 有权
标题翻译：四值相位调制器
公开(公告)号：JP2009081747A
公开(公告)日：2009-04-16
申请号：JP2007250368
申请日：2007-09-27
申请人： Hitachi Communication Technologies Ltd , 株式会社日立コミュニケーションテクノロジー
发明人： SEKINE KENRO , KIKUCHI NOBUHIKO , SASAKI SHINYA
IPC分类号： H04L27/20 , G02F1/015 , H04B10/2513 , H04B10/293 , H04B10/516 , H04B10/556 , H04B10/564 , H04B10/572 , H04B10/588 , H04B10/61
CPC分类号： G02F1/0123 , G02F1/2255 , G02F2001/212 , H04B10/5053 , H04B10/50577 , H04B10/50595 , H04L27/2071 , H04L27/2096
摘要： PROBLEM TO BE SOLVED: To provide a four-value phase modulator which compensates for a bias drift, absorbs an influence of an individual variation upon device startup, and operates stably.
SOLUTION: The four-value phase modulator is configured to comprise: two phase modulators juxtaposed; and a phase shifter for adjusting a phase difference in composing outputs from the two phase modulators. The four-value phase modulator comprises: a first control means which comprises a second light source for introducing a light propagating in a reverse direction, for controlling a bias of the two phase modulators so as to minimize an intensity level of the same reversing light on the input side of the four-value phase modulator; and a second control means for controlling the bias of the phase shifter so as to minimize a result obtained by monitoring via a photodiode having a band of a bit rate or less on the output side of the four-value phase modulator. After the second control means is preferentially executed, the first control means is executed.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供补偿偏置漂移的四值相位调制器，吸收设备启动时个体变化的影响，并且稳定地操作。解决方案：四值相位调制器被配置为包括：两相调制器并置; 以及用于调整来自两相调制器的输出的相位差的移相器。四值相位调制器包括：第一控制装置，其包括用于引入沿相反方向传播的光的第二光源，用于控制两个相位调制器的偏置，以使相同的反转光的强度水平最小化四值相位调制器的输入端; 以及第二控制装置，用于控制移相器的偏置，以便通过在四值相位调制器的输出侧经由具有比特率或更小的频带的光电二极管监测而获得的结果最小化。在优先执行第二控制装置之后，执行第一控制装置。版权所有（C）2009，JPO＆INPIT

98. 发明专利

JP2009044229A Dispersion equalization method, dispersion equalizer, and optical transceiver 有权
标题翻译：分散均衡方法，分散均衡器和光学收发器
公开(公告)号：JP2009044229A
公开(公告)日：2009-02-26
申请号：JP2007204317
申请日：2007-08-06
申请人： Sumitomo Electric Ind Ltd , 住友電気工業株式会社
发明人： KATO TAKATOSHI
IPC分类号： H04B3/06 , H04B10/2507 , H04B10/2513
CPC分类号： H04B10/6971 , H04L25/03057 , H04L2025/03356 , H04L2025/0349 , H04L2025/03605 , H04L2025/03668
摘要： PROBLEM TO BE SOLVED: To provide a dispersion equalization method which is capable of performing dispersion equalization processing even in the case of higher-speed transmission, and a dispersion equalizer, and an optical transceiver.
SOLUTION: An optical transceiver 1 includes a transmission part 10, a reception part 20, and a control part 30. The transmission part 10 includes a CDR part 11, an LDD 12, and a laser diode 13. The reception part 20 includes a photo diode 21, a TIA 22, a dispersion equalizing part 23, and a CDR part 24. The control part 30 performs adaptive equalization processing to adjust a tap coefficient when an electric signal having a clock period (kT) is inputted to the dispersion equalizing part 23 and takes the tap coefficient obtained by this adjustment as an initial value, and performs adaptive equalization processing to adjust the tap coefficient when an electric signal having a clock period T is inputted to the dispersion equalizing part 23.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供即使在高速传输的情况下也能够进行色散均衡处理的色散均衡方法，以及色散均衡器和光收发器。解决方案：光收发器1包括发送部分10，接收部分20和控制部分30.发送部分10包括CDR部分11，LDD 12和激光二极管13.接收部分20 包括光电二极管21，TIA 22，色散均衡部分23和CDR部分24.控制部分30执行自适应均衡处理以在具有时钟周期（kT）的电信号被输入到色散均衡部分23，并将通过该调整获得的抽头系数作为初始值，并且当具有时钟周期T的电信号被输入到色散均衡部分23时，执行自适应均衡处理以调整抽头系数。（C）2009，JPO＆INPIT

99. 发明专利

JP2009038769A Optical transceiver and its adjusting method 有权
标题翻译：光收发器及其调整方法
公开(公告)号：JP2009038769A
公开(公告)日：2009-02-19
申请号：JP2007203516
申请日：2007-08-03
申请人： Sumitomo Electric Ind Ltd , 住友電気工業株式会社
发明人： KATO TAKATOSHI
IPC分类号： H04B3/06 , H03H17/00 , H03H17/04 , H04B3/04 , H04B10/07 , H04B10/2507 , H04B10/2513 , H04B10/28 , H04B10/40 , H04B10/50 , H04B10/60 , H04B10/69
CPC分类号： H04B10/25133 , H04B10/40
摘要： PROBLEM TO BE SOLVED: To provide an optical transceiver capable of being easily dispersed and equalized even in the case of high-speed transmission and an adjusting method for the optical transceiver.
SOLUTION: The two optical transceivers 1 and 2 have mutually same configurations, and have transmitting sections 10, receiving sections 20 and control sections 30. Each transmitting section 10 for the optical transceivers 1 and 2 has a CDR section 11, an LDD section 12, a dispersing equalizing section 13 for transmission and a laser diode 14. Each receiving section 20 for the optical transceivers 1 and 2 contains a photo-diode 21, a TIA section 22, the dispersing equalizing section 23 for reception and the CDR section 24. A waveform distortion in each of electric-signal lines, the laser diodes 14 and the photo-diodes 21 is equalized by the dispersing equalizing sections 13 for transmission, and the waveform distortions in the optical fibers among the optical transceivers are equalized by the dispersing equalizing sections 23 for reception.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使在高速传输和光收发器的调整方法的情况下，也能够提供能够容易地分散均衡的光收发器。解决方案：两个光收发器1和2具有相同的配置，并且具有发送部分10，接收部分20和控制部分30.用于光收发器1和2的每个发送部分10具有CDR部分11，LDD 用于传输的分散均衡部分13和激光二极管14.用于光收发器1和2的每个接收部分20包含光电二极管21，TIA部分22，用于接收的分散均衡部分23和CDR部分电信号线，激光二极管14和光电二极管21中的波形失真由用于透射的分散均衡部分13均衡，并且光收发器中的光纤中的波形失真被分散平衡部23用于接收。版权所有（C）2009，JPO＆INPIT

100. 发明专利

JP2009027525A Optical transmission system and optical transmission method 审中-公开
标题翻译：光传输系统和光传输方法
公开(公告)号：JP2009027525A
公开(公告)日：2009-02-05
申请号：JP2007189625
申请日：2007-07-20
申请人： Nec Corp , 日本電気株式会社
发明人： SHIBUYA MAKOTO
IPC分类号： H04B10/2507 , G02F1/01 , H04B10/2513 , H04B10/2569 , H04B10/516 , H04B10/532 , H04B10/556 , H04B10/588 , H04B10/61
CPC分类号： H04B10/532 , H04B10/505 , H04B10/5161 , H04B10/5162 , H04B10/5165 , H04B10/5561 , H04B10/677
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission system and optical transmission method capable of enhancing transmission performance.
SOLUTION: In a transmitting apparatus 10, phase modulation means 12 phase-modulates a signal light from a signal source 11 on the basis of data. Polarization modulation means 13 polarization-modulates the signal light which is differentially phase-modulated by the phase modulation means 12 so that the polarization directions of temporally adjacent unit data may be orthogonal to each other. In a receiving apparatus 30, interference means 31 receives and causes the signal light transmitted from the transmitting apparatus 10 to interfere with a signal light such that the signal light is delayed by an even number of unit data. Intensity detecting means 32 detects the intensity of the signal light obtained by interference by the interference means 31 to detect data.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供能够提高传输性能的光传输系统和光传输方法。解决方案：在发送装置10中，相位调制装置12基于数据对来自信号源11的信号光进行相位调制。偏振调制装置13对由相位调制装置12进行差分相位调制的信号光进行偏振调制，使得时间上相邻的单位数据的偏振方向可以彼此正交。在接收装置30中，干扰装置31接收并发送从发送装置10发送的信号光干扰信号光，使得信号光被延迟偶数个单位数据。强度检测装置32检测由干扰装置31的干扰获得的信号光的强度，以检测数据。版权所有（C）2009，JPO＆INPIT

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