-
公开(公告)号：US08249464B2
公开(公告)日：2012-08-21
申请号：US12719258
申请日：2010-03-08
CPC分类号： H04B10/614 , H04B10/60 , H04B10/63
摘要： In-phase signal light and quadrature-phase signal light obtained by mixing input light and local light with each other are converted into digital signals. The quality of a signal to be received is monitored with reference to information obtained through digital signal processing, and the power ratio between the input signal light and the local light that are to be mixed with each other are controlled on the basis of the result of the monitoring.
摘要翻译： 通过将输入光和局部光彼此混合而获得的同相信号光和正交相位信号光被转换为数字信号。 参照通过数字信号处理获得的信息来监视要接收的信号的质量，并且基于将要混合的输入信号光和本地光之间的功率比来控制 监控。
-
2.发明申请公开(公告)号：US20100054759A1
公开(公告)日：2010-03-04
申请号：US12458104
申请日：2009-06-30
IPC分类号： H04B10/06
CPC分类号： H04L25/03038 , H04B10/6971 , H04L2025/03566
摘要： In a digital signal processing circuit of an optical receiver applicable to this method for electric power supply control, tap coefficients of a filter used in a waveform equalization section are calculated in a tap coefficient calculating section, based on a state of an optical fiber transmission line. Then, among the calculated tap coefficients, a tap coefficient for which an absolute value is less than a previously determined threshold is determined, and electric power supply to a circuit part of a filter corresponding to the tap coefficient is stopped. As a result, for an optical receiver that performs digital signal processing, it is possible to reduce the power consumption, while realizing waveform equalization at a high accuracy.
摘要翻译： 在适用于该电力供给控制方法的光接收机的数字信号处理电路中，根据光纤传输线的状态，在抽头系数计算部中计算波形均衡部中使用的滤波器的抽头系数 。 然后，在所计算的抽头系数中，确定绝对值小于先前确定的阈值的抽头系数，并且停止对与抽头系数相对应的滤波器的电路部分的电力供应。 结果，对于执行数字信号处理的光接收机，可以在高精度地实现波形均衡的同时降低功耗。
-
公开(公告)号：US08594508B2
公开(公告)日：2013-11-26
申请号：US13137024
申请日：2011-07-15
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。
-
公开(公告)号：US08116635B2
公开(公告)日：2012-02-14
申请号：US12155262
申请日：2008-05-30
IPC分类号： H04B10/08
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。
-
5.发明申请OPTICAL RECEIVER FOR CONTROLLING WAVELENGTH OF LOCAL OSCILLATION LIGHT AND LOCAL OSCILLATION LIGHT CONTROL METHOD 有权用于控制本地振荡光和局部振荡光控制方法波长的光接收器公开(公告)号：US20100111544A1
公开(公告)日：2010-05-06
申请号：US12496274
申请日：2009-07-01
IPC分类号： H04B10/06
CPC分类号： H04B10/613 , H04B10/60 , H04B10/64
摘要： While altering a plurality of wavelength setting parameters according to a control sequence, a local oscillation light having a wavelength controlled by those wavelength setting parameters is generated. Further, the received signal light and the generated local oscillation light are mixed, and if an electric signal is generated by photoelectric conversion from the resulting light, then the wavelength control of the local oscillation light is terminated.
摘要翻译： 在根据控制序列改变多个波长设置参数的同时，产生具有由这些波长设置参数控制的波长的本地振荡光。 此外，接收的信号光和产生的本地振荡光被混合，并且如果通过从所得到的光的光电转换产生电信号，则终止本地振荡光的波长控制。
-
6.发明授权公开(公告)号：US08744278B2
公开(公告)日：2014-06-03
申请号：US12458104
申请日：2009-06-30
CPC分类号： H04L25/03038 , H04B10/6971 , H04L2025/03566
摘要： In a digital signal processing circuit of an optical receiver applicable to this method for electric power supply control, tap coefficients of a filter used in a waveform equalization section are calculated in a tap coefficient calculating section, based on a state of an optical fiber transmission line. Then, among the calculated tap coefficients, a tap coefficient for which an absolute value is less than a previously determined threshold is determined, and electric power supply to a circuit part of a filter corresponding to the tap coefficient is stopped. As a result, for an optical receiver that performs digital signal processing, it is possible to reduce the power consumption, while realizing waveform equalization at a high accuracy.
摘要翻译： 在适用于该电力供给控制方法的光接收机的数字信号处理电路中，根据光纤传输线的状态，在抽头系数计算部中计算波形均衡部中使用的滤波器的抽头系数 。 然后，在所计算的抽头系数中，确定绝对值小于先前确定的阈值的抽头系数，并且停止对与抽头系数相对应的滤波器的电路部分的电力供应。 结果，对于执行数字信号处理的光接收机，可以在高精度地实现波形均衡的同时降低功耗。
-
7.发明授权Optical receiver for controlling wavelength of local oscillation light and local oscillation light control method 有权用于控制本地振荡光的波长的光接收器和本地振荡光控制方法公开(公告)号：US08391725B2
公开(公告)日：2013-03-05
申请号：US12496274
申请日：2009-07-01
IPC分类号： H04B10/06
CPC分类号： H04B10/613 , H04B10/60 , H04B10/64
摘要： While altering a plurality of wavelength setting parameters according to a control sequence, a local oscillation light having a wavelength controlled by those wavelength setting parameters is generated. Further, the received signal light and the generated local oscillation light are mixed, and if an electric signal is generated by photoelectric conversion from the resulting light, then the wavelength control of the local oscillation light is terminated.
摘要翻译： 在根据控制序列改变多个波长设置参数的同时，产生具有由这些波长设置参数控制的波长的本地振荡光。 此外，接收的信号光和产生的本地振荡光被混合，并且如果通过从所得到的光的光电转换产生电信号，则终止本地振荡光的波长控制。
-
公开(公告)号：US08351795B2
公开(公告)日：2013-01-08
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.
-
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。
-
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。
-
-
-
-
-
-
-
-
-
搜索结果
191 条记录 (耗时 0.023 秒)
