利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

191 条记录 (耗时 0.051 秒)

    Optical transmission system
    11.
    发明申请
    Optical transmission system 有权
    光传输系统

    公开(公告)号：US20110274430A1

    公开(公告)日：2011-11-10

    申请号：US13137024

    申请日：2011-07-15

    申请人： Hisao Nakashima ,  Takeshi Hoshida ,  Takahito Tanimura ,  Toru Katagiri ,  Shoichiro Oda

    发明人： Hisao Nakashima ,  Takeshi Hoshida ,  Takahito Tanimura ,  Toru Katagiri ,  Shoichiro Oda

    IPC分类号： H04J14/06

    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。

    MONITOR CIRCUIT FOR MONITORING PROPERTY OF OPTICAL FIBER TRANSMISSION LINE AND QUALITY OF OPTICAL SIGNAL
    13.
    发明申请
    MONITOR CIRCUIT FOR MONITORING PROPERTY OF OPTICAL FIBER TRANSMISSION LINE AND QUALITY OF OPTICAL SIGNAL 审中-公开
    用于监测光纤传输线性质的监控电路和光信号质量

    公开(公告)号：US20090214201A1

    公开(公告)日：2009-08-27

    申请号：US12236028

    申请日：2008-09-23

    申请人： Shoichiro Oda ,  Takeshi Hoshida ,  Hisao Nakashima ,  Takahito Tanimura

    发明人： Shoichiro Oda ,  Takeshi Hoshida ,  Hisao Nakashima ,  Takahito Tanimura

    IPC分类号： H04B10/08

    CPC分类号： H04B10/6971 ,  H04B10/0795

    摘要： An optical reception circuit generates optical electric field data by performing coherent reception of an optical signal transmitted via an optical fiber transmission line. An FIR filter filters the optical electric field data so that the optical signal is equalized. A quality monitor unit calculates the average value and the standard deviation value of the amplitude of the optical signal on the basis of the equalized optical electric field data, and further calculates an optical signal-to-noise ratio on the basis of the calculated values.

    摘要翻译： 光接收电路通过对通过光纤传输线传输的光信号进行相干接收来产生光电场数据。 FIR滤波器对光电场数据进行滤波，使光信号相等。 质量监视器单元基于均衡的光电场数据计算光信号的幅度的平均值和标准偏差值，并且还基于计算值来计算光信噪比。

    Optical receiving apparatus and method
    16.
    发明申请
    Optical receiving apparatus and method 审中-公开
    光接收装置及方法

    公开(公告)号：US20090226187A1

    公开(公告)日：2009-09-10

    申请号：US12320069

    申请日：2009-01-15

    申请人： Takahito Tanimura ,  Takeshi Hoshida ,  Hisao Nakashima ,  Shoichiro Oda

    发明人： Takahito Tanimura ,  Takeshi Hoshida ,  Hisao Nakashima ,  Shoichiro Oda

    IPC分类号： H04B10/06

    CPC分类号： H04B10/677 ,  H04B10/60 ,  H04B10/69

    摘要： An optical receiving apparatus compensates degradation of an optical signal received, based a division operation using the intensity of the optical signal. A receiving unit outputs a first electrical signal corresponding to the phase of the optical signal and a second electrical signal corresponding to the intensity of the optical signal. An analog first dividing unit and a second dividing unit divide the first electrical signal by the second electrical signal. A first ADC and a second ADC convert the divided electrical signal to a digital signal. An identifying unit identifies data of the optical signal based on calculation using the digital signal.

    摘要翻译： 光接收装置基于使用光信号的强度的分割操作来补偿所接收的光信号的劣化。 接收单元输出对应于光信号的相位的第一电信号和对应于光信号的强度的第二电信号。 模拟第一分割单元和第二分割单元将第一电信号除以第二电信号。 第一ADC和第二ADC将分频电信号转换为数字信号。 识别单元基于使用数字信号的计算来识别光信号的数据。

    MULTI-WAVELENGTH LIGHT SOURCE
    17.
    发明申请
    MULTI-WAVELENGTH LIGHT SOURCE 有权
    多波长光源

    公开(公告)号：US20120243880A1

    公开(公告)日：2012-09-27

    申请号：US13413874

    申请日：2012-03-07

    申请人： Shoichiro ODA ,  Takeshi Hoshida ,  Toshiki Tanaka ,  Takahito Tanimura ,  Tomoo Takahara

    发明人： Shoichiro ODA ,  Takeshi Hoshida ,  Toshiki Tanaka ,  Takahito Tanimura ,  Tomoo Takahara

    IPC分类号： H04B10/04 ,  F21V9/00

    CPC分类号： H04B10/506 ,  H01S5/005 ,  H01S5/0085 ,  H01S5/4087 ,  H04B10/548

    摘要： Light output from a seed light source generation unit that outputs continuous light having a single frequency or a plurality of frequencies is input by a multi-wavelength light source to an optical circulation unit, and light having a plurality of frequencies that is frequency-synchronized with seed light output from the seed light source generation unit is generated. The optical circulation unit is provided with an optical frequency shifter to shift light frequencies, and includes a circulation circuit to return output from the optical frequency shifter to the input side. On a circulation path, an optical spectral shaper capable of adjusting an optical amount of attenuation for each frequency unit is provided so that optical amount of attenuations are adjusted, and thereby the number and the like of optical frequencies output from the optical circulation unit are changed.

    摘要翻译： 从多光波长光源输入输出具有单一频率或多个频率的连续光的种子光源生成部的光输出到光循环装置，具有频率同步的多个频率的光 产生从种子光源生成单元输出的种子光。 光学循环单元设置有用于移动光频率的光学移频器，并且包括循环电路，以将输出从光学移频器返回到输入侧。 在循环路径上，设置能够调整每个频率单位的光衰减量的光谱整形器，从而调整光衰减量，从而使从光循环单元输出的光频数等变化 。

    Multi-wavelength light source
    20.
    发明授权
    Multi-wavelength light source 有权
    多波长光源

    公开(公告)号：US08849128B2

    公开(公告)日：2014-09-30

    申请号：US13413874

    申请日：2012-03-07

    申请人： Shoichiro Oda ,  Takeshi Hoshida ,  Toshiki Tanaka ,  Takahito Tanimura ,  Tomoo Takahara

    发明人： Shoichiro Oda ,  Takeshi Hoshida ,  Toshiki Tanaka ,  Takahito Tanimura ,  Tomoo Takahara

    IPC分类号： H04B10/04 ,  H04J14/02 ,  H04B10/548 ,  H04B10/50 ,  H01S5/00 ,  H01S5/40

    CPC分类号： H04B10/506 ,  H01S5/005 ,  H01S5/0085 ,  H01S5/4087 ,  H04B10/548

    摘要： Light output from a seed light source generation unit that outputs continuous light having a single frequency or a plurality of frequencies is input by a multi-wavelength light source to an optical circulation unit, and light having a plurality of frequencies that is frequency-synchronized with seed light output from the seed light source generation unit is generated. The optical circulation unit is provided with an optical frequency shifter to shift light frequencies, and includes a circulation circuit to return output from the optical frequency shifter to the input side. On a circulation path, an optical spectral shaper capable of adjusting an optical amount of attenuation for each frequency unit is provided so that optical amount of attenuations are adjusted, and thereby the number and the like of optical frequencies output from the optical circulation unit are changed.

    摘要翻译： 从多光波长光源输入输出具有单一频率或多个频率的连续光的种子光源生成部的光输出到光循环装置，具有频率同步的多个频率的光 产生从种子光源生成单元输出的种子光。 光学循环单元设置有用于移动光频率的光学移频器，并且包括循环电路，以将输出从光学移频器返回到输入侧。 在循环路径上，设置能够调整每个频率单位的光衰减量的光谱整形器，从而调整光衰减量，从而使从光循环单元输出的光频数等变化 。