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41.发明授权公开(公告)号：US08301039B2
公开(公告)日：2012-10-30
申请号：US12620540
申请日：2009-11-17
IPC分类号： H04B10/06
CPC分类号： H04B10/614 , H04B10/61 , H04B10/613 , H04B10/6165
摘要： A delay device that provides a delay amount to at least one of the in-phase signal and the quadrature signal, and a delay control section that controls the delay amount provided by the delay device based on a quality of the signals when the in-phase signal and the quadrature signal, to the at least one of which the delay amount is provided, at the delay device are converted into digital signals by the analog-digital converter, and the digital signal processing is carried out at the processor are provided. Thereby, the signal quality of recovered data at a receiving end of a multi-level phase modulation communication system is improved.
摘要翻译： 一种向至少一个同相信号和正交信号提供延迟量的延迟装置，以及延迟控制部分，当延迟装置根据同相信号和正交信号中的信号质量， 信号和正交信号至延迟装置中提供的延迟量中的至少一个被模拟数字转换器转换成数字信号，并且在处理器处执行数字信号处理。 因此，提高了在多级相位调制通信系统的接收端的恢复数据的信号质量。
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公开(公告)号：US08086113B2
公开(公告)日：2011-12-27
申请号：US12104056
申请日：2008-04-16
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。
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公开(公告)号：US07680419B2
公开(公告)日：2010-03-16
申请号：US11445148
申请日：2006-06-02
申请人： Hisao Nakashima , Takeshi Hoshida
发明人： Hisao Nakashima , Takeshi Hoshida
IPC分类号： H04B10/00
CPC分类号： H04B10/299 , H04B2210/258
摘要： A repeater is disclosed that transmits an optical signal using wave division multiplexing. The repeater includes a demultiplexing unit that separates plural channels contained in the optical signal, an adjusting unit that adjusts at least optical power of each of the channels according to a control signal, a multiplexing unit that outputs a multiple wavelength signal in which the channels are multiplexed, and a monitoring unit that determines a modulation scheme and a bit rate of the optical signal for each of the channels so as to generate the control signal.
摘要翻译： 公开了使用波分复用来发送光信号的中继器。 中继器包括：分离单元，分离包含在光信号中的多个信道;调节单元，用于根据控制信号调整至少每个信道的光功率;多路复用单元，其输出信道为 以及监测单元，其确定每个信道的光信号的调制方案和比特率，以便产生控制信号。
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44.发明申请Frequency offset compensating apparatus and method, and optical coherent receiver 有权频偏补偿装置和方法以及光学相干接收机公开(公告)号：US20090142076A1
公开(公告)日：2009-06-04
申请号：US12285234
申请日：2008-09-30
申请人： Lei Li , Zhenning Tao , Hisao Nakashima
发明人： Lei Li , Zhenning Tao , Hisao Nakashima
IPC分类号： H04B10/06
CPC分类号： H04B10/6165 , H04B10/61 , H04B10/613
摘要： The present invention relates to a frequency offset compensating apparatus and method, and an optical coherent receiver. The optical coherent receiver includes a front end processor and a frequency offset estimator, of which said front end processor converts an inputted optical signal into a base band digital electric signal, and said frequency offset estimator estimates a phase offset change introduced by a frequency offset in said base band digital electric signal; said frequency offset compensating apparatus comprises an M output integrator, for integrating the phase offset change introduced by the frequency offset to acquire M inverse numbers of the phase offset introduced by the frequency offset, where M is an integer greater than 1; a series-parallel converting device, for dividing said base band digital electric signal into M sub base band digital electric signals; M complex multipliers, for constructing the corresponding inverse numbers in the M inverse numbers to be complex numbers, and multiplying them with the corresponding sub base band digital electric signals in the M sub base band digital electric signals; and a parallel-series converting device, for converting the M sub base band digital electric signals multiplied by said complex multipliers into a base band electric signal.
摘要翻译： 本发明涉及一种频偏补偿装置和方法以及光相干接收机。 所述光学相干接收机包括前端处理器和频率偏移估计器，其中所述前端处理器将输入的光信号转换为基带数字电信号，并且所述频偏估计器估计由频带偏移引入的相位偏移变化 表示基带数字电信号; 所述频率偏移补偿装置包括M输出积分器，用于对由频率偏移引入的相位偏移变化进行积分，以获得由频率偏移引入的相位偏移的M个数，其中M是大于1的整数; 串并联转换装置，用于将所述基带数字电信号分成M个子基带数字电信号; M个复数乘法器，用于将M个倒数中的对应的倒数构成为复数，并将其与M个子基带数字电信号中的对应的子基带数字电信号相乘; 以及并行串行转换装置，用于将乘以所述复数乘法器的M个子基带数字电信号转换成基带电信号。
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45.发明申请Phase imbalance monitoring apparatus, amplitude imbalance monitoring apparatus, and apparatus using the same 有权相位不平衡监视装置，振幅不平衡监视装置及使用其的装置公开(公告)号：US20090119043A1
公开(公告)日：2009-05-07
申请号：US12232179
申请日：2008-09-11
申请人： Zhenning Tao , Jun Tian , Huijian Zhang , Hisao Nakashima
发明人： Zhenning Tao , Jun Tian , Huijian Zhang , Hisao Nakashima
IPC分类号： G01R13/00
CPC分类号： H04L27/3863 , H04L27/3872
摘要： The present invention discloses a phase imbalance monitoring apparatus, an amplitude imbalance monitoring apparatus, as well as an apparatus incorporating the same. The phase imbalance monitoring apparatus is for use in an apparatus in which imbalance between an I branch signal and a Q branch signal in quadrature to each other is required to be monitored, and is characterized in comprising a preprocessing unit, for performing preprocessing on the I branch signal and the Q branch signal to extract essential information relevant to correlation of the signals; and a correlation unit, for performing correlation processing on the extracted essential information to learn of the phase imbalance between the I branch signal and the Q branch signal.
摘要翻译： 本发明公开了一种相位不平衡监视装置，振幅不平衡监视装置，以及包括该不平衡监视装置的装置。 相位不平衡监视装置用于需要监视I分支信号和彼此正交的Q分支信号之间的不平衡的装置，其特征在于包括预处理单元，用于对I进行预处理 分支信号和Q分支信号，以提取与信号相关性相关的基本信息; 以及相关单元，用于对所提取的基本信息执行相关处理，以了解I分支信号和Q分支信号之间的相位不平衡。
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公开(公告)号：US20090087194A1
公开(公告)日：2009-04-02
申请号：US12219863
申请日：2008-07-29
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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公开(公告)号：US20090060508A1
公开(公告)日：2009-03-05
申请号：US12155262
申请日：2008-05-30
IPC分类号： H04J14/06
CPC分类号： H04J14/06 , H04B10/505 , H04B10/532 , H04B10/541 , H04B10/548 , H04B10/5561 , H04J14/08 , H04L5/04
摘要： A polarization multiplexing and transmitting apparatus generates polarization multiplexed light by multiplexing modulated signal components that having varying intensities and are in polarization states orthogonal to each other. The polarization multiplexing and transmitting apparatus includes a converting unit that converts light generated by a light source into signal components having a varying intensity synchronized with a clock signal input thereto and a varying intensity inversely synchronized with the clock signal, respectively; a modulating unit that modulates the signal components, respectively; and a polarization adjusting unit that orthogonalizes polarization states of the signal components.
摘要翻译： 偏振复用和发送装置通过对具有变化的强度并且处于彼此正交的偏振状态的调制信号分量进行多路复用来产生偏振复用光。 偏振复用和发送装置包括转换单元，其将由光源产生的光变换成具有与输入的时钟信号同步的变化强度的信号分量和与时钟信号反向同步的变化强度; 调制单元，分别调制信号分量; 以及使信号分量的偏振态正交化的偏振调整单元。
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公开(公告)号：US20070201878A1
公开(公告)日：2007-08-30
申请号：US11445148
申请日：2006-06-02
申请人： Hisao Nakashima , Takeshi Hoshida
发明人： Hisao Nakashima , Takeshi Hoshida
IPC分类号： H04B10/00
CPC分类号： H04B10/299 , H04B2210/258
摘要： A repeater is disclosed that transmits an optical signal using wave division multiplexing. The repeater includes a demultiplexing unit that separates plural channels contained in the optical signal, an adjusting unit that adjusts at least optical power of each of the channels according to a control signal, a multiplexing unit that outputs a multiple wavelength signal in which the channels are multiplexed, and a monitoring unit that determines a modulation scheme and a bit rate of the optical signal for each of the channels so as to generate the control signal.
摘要翻译： 公开了使用波分复用来发送光信号的中继器。 中继器包括：分离单元，分离包含在光信号中的多个信道;调节单元，用于根据控制信号调整至少每个信道的光功率;多路复用单元，其输出信道为 以及监测单元，其确定每个信道的光信号的调制方案和比特率，以便产生控制信号。
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公开(公告)号：US20060023641A1
公开(公告)日：2006-02-02
申请号：US10992829
申请日：2004-11-22
IPC分类号： H04L12/28
CPC分类号： H04L41/145
摘要： Linear networks are divided into a plurality of regeneration repeating sections which have nodes having regeneration repeaters arranged therein at both ends, devices such as linear repeaters or OADMs are arranged at the nodes positioned in the regeneration repeating sections, a plurality of assumed paths assumed as a result of arranging the devices are extracted in the regeneration repeating sections, and transmission permission/inhibition is determined for each assumed path, and after that, the determined transmission permission/inhibition is displayed to allow a user to perform settings again.
摘要翻译： 线性网络被分成多个再生重复部分，其具有在其两端布置有再生中继器的节点，诸如线性中继器或OADM的设备被布置在位于再生重复部分中的节点处，多个假定路径被假定为 在再生重复部分中抽出装置的结果，对每个假设路径确定发送允许/禁止，然后显示所确定的发送允许/禁止以允许用户再次执行设置。
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公开(公告)号：US4905060A
公开(公告)日：1990-02-27
申请号：US198198
申请日：1988-05-25
申请人： Naoki Chinone , Hisao Nakashima , Makoto Okai , Shinji Tsuji
发明人： Naoki Chinone , Hisao Nakashima , Makoto Okai , Shinji Tsuji
IPC分类号： H01L33/06 , H01L33/14 , H01L33/30 , H01L33/40 , H01L33/44 , H01S5/00 , H01S5/20 , H01S5/223 , H01S5/343
CPC分类号： H01L33/305 , B82Y20/00 , H01L33/06 , H01S5/20 , H01S5/223 , H01S5/343 , H01S5/34313 , H01S5/3434 , H01S5/2059 , H01S5/34306
摘要： A light emitting device has a multiple layer film structure such as a multiple quantum well (MQW) structure which is made of an indium system compound semiconductor not containing phosphorus, wherein part of a region or regions of the multiple film structure is (are) a disordered region or regions disordered by introduction of an inpurity.
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