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    • 64. 发明授权
    • Multi-bit-rate optical communication method, optical network unit, and optical line terminal
    • 多比特率光通信方式,光网络单元和光线路终端
    • US07917032B2
    • 2011-03-29
    • US11582399
    • 2006-10-18
    • Kazuyuki Mori
    • Kazuyuki Mori
    • H04J14/00
    • H04J3/22H04J3/0605H04J14/0226H04J14/0227H04J14/0247H04J14/0252H04J14/0282H04L7/0338H04L7/06H04Q11/0067H04Q2011/0064H04Q2011/0079
    • The present invention relates to a multi-bit-rate optical communication method, optical network units, and an optical line terminal that enable multi-bit-rate transmission of low bit-rate data and high bit-rate data while maintaining compatibility with existing systems and reducing upgrade costs of optical network units and labor required for the upgrade, wherein the optical line terminal transmits a first data area including frame synchronization information in a predetermined frame format at a first bit rate and a second data area at a second bit rate which is the first bit rate×Mdown (Mdown>1), and any of the optical network units performs reception processing at a rate once every Mdown-bit to detect the frame synchronization information in the first data area and, based on detection timing thereof, performs reception processing of the second data area by a bit.
    • 多比特率光通信方法,光网络单元和光线路终端技术领域本发明涉及多比特率光通信方法,光网络单元和光线路终端,其能够在保持与现有系统的兼容性的同时进行低比特率数据和高比特率数据的多比特率传输 降低光网络单元的升级成本和升级所需的劳动力,其中,光线路终端以第一比特率以预定的帧格式发送包括帧同步信息的第一数据区,以第二位速率发送第二数据区, 是第一比特率×Mdown(Mdown> 1),并且任何光网络单元以每Mdown比特一次的速率执行接收处理,以检测第一数据区域中的帧同步信息,并且基于其检测定时, 进行第二数据区的接收处理。
    • 68. 发明申请
    • Optical switch and control method of optical switch, and control method of MEMS device
    • 光开关的光开关和控制方法以及MEMS器件的控制方法
    • US20090245727A1
    • 2009-10-01
    • US12292278
    • 2008-11-14
    • Takashi ShimizuKazuyuki Mori
    • Takashi ShimizuKazuyuki Mori
    • G02B6/35G02B6/42
    • G02B6/359G02B6/3518G02B6/357Y10S359/90
    • A control section of an optical switch calculates information relating to a polarization amount in an insulating film at each predetermined time, to update the information relating to the polarization amount in the insulating film. On the other hand, when a drive voltage is applied to a MEMS mirror, an initial value of the drive voltage corresponding to an input setting command is read out from an initial value memory, and also, the information relating to the polarization amount in the insulating film is read out from the polarization amount memory, and the initial value of the drive voltage is corrected according to the read information relating to the polarization amount in the insulating film, to thereby set a new drive voltage, and the new drive voltage is applied on electrodes of the MEMS mirror.
    • 光开关的控制部分在每个预定时间计算与绝缘膜中的极化量相关的信息,以更新与绝缘膜中的极化量有关的信息。 另一方面,当向MEMS反射镜施加驱动电压时,从初始值存储器读出对应于输入设定指令的驱动电压的初始值,并且还将与 从极化量存储器读出绝缘膜,根据与绝缘膜中的极化量相关的读取信息来校正驱动电压的初始值,由此设定新的驱动电压,新的驱动电压为 施加在MEMS反射镜的电极上。
    • 69. 发明授权
    • Digital filter device
    • 数字滤波器
    • US07467171B2
    • 2008-12-16
    • US10647073
    • 2003-08-22
    • Yuji IshiiKenji RikimaruKazuyuki MoriYuji Tochio
    • Yuji IshiiKenji RikimaruKazuyuki MoriYuji Tochio
    • G06F17/10
    • H03H17/02H03H17/0294H03H17/04
    • In a digital filter device which filters a plurality of signals by a single digital filter, an input data memory stores the input data strings generated by computing processors, and a digital filter reads the input data strings in a predetermined sequence to be filtered and generates output data strings. An output data memory stores the output data strings, and a data processor reads the output data strings in a predetermined sequence to be processed. Furthermore, a filter memory and coefficient memories respectively store data-under-calculation and a filter coefficient in a delay circuit included in the digital filter.
    • 在通过单个数字滤波器对多个信号进行滤波的数字滤波器装置中,输入数据存储器存储由计算处理器生成的输入数据串,并且数字滤波器以预定的序列读取输入数据串以进行滤波并产生输出 数据串。 输出数据存储器存储输出数据串,数据处理器按预定的处理顺序读出输出数据串。 此外,滤波器存储器和系数存储器分别存储在数字滤波器中包括的延迟电路中的欠计算和滤波器系数。
    • 70. 发明申请
    • Passive optical network system and method of data transmission in the passive optical network
    • 无源光网络中的无源光网络系统和数据传输方法
    • US20080226294A1
    • 2008-09-18
    • US12073037
    • 2008-02-28
    • Yoshio SakaiKazuyuki Mori
    • Yoshio SakaiKazuyuki Mori
    • H04B10/20
    • H04L1/0041H04B10/272H04L1/0063H04L1/0078H04Q11/0067H04Q2011/0086
    • Regarding the passive optical network (PON) system of the present invention, in an OLT, data of different bit rates is framed, and framed data rows are subjected to FEC encoding processing without changing the line up of the data, and a check bit is added to the end of the frame, and an optical signal that has been modulated in accordance with the data row to which the check bit has been added is transmitted to the optical transmission line. Then in an ONU that corresponds to a high speed bit rate to which an optical signal from the OLT has been applied via a power splitter, forward error correction of the reception data is performed. As a result in a PON system in which data of different bit rates coexist, the minimum reception rate of a high speed ONU can be improved without having an influence on a low speed ONU.
    • 关于本发明的无源光网络(PON)系统,在OLT中,不同比特率的数据被成帧,并且成帧的数据行经受FEC编码处理而不改变数据的排队,并且校验位 加到帧的结尾,并且已经根据添加有校验位的数据行调制的光信号被发送到光传输线。 然后,在对应于通过功率分配器施加了来自OLT的光信号的高速比特率的ONU中,执行接收数据的前向纠错。 结果,在不同比特率的数据共存的PON系统中,可以提高高速ONU的最小接收速率,而不会对低速ONU产生影响。