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    Forward error correcting code encoding equipment, forward error correcting code decoding equipment, and transmission apparatus
    4.
    发明授权
    Forward error correcting code encoding equipment, forward error correcting code decoding equipment, and transmission apparatus 失效
    前向纠错码编码装置，前向纠错码解码装置和发送装置

    公开(公告)号：US06871314B2

    公开(公告)日：2005-03-22

    申请号：US10317121

    申请日：2002-12-12

    申请人： Masaki Ohira ,  Masatoshi Shibasaki ,  Yusuke Yajima ,  Takashi Mori

    发明人： Masaki Ohira ,  Masatoshi Shibasaki ,  Yusuke Yajima ,  Takashi Mori

    IPC分类号： H03M13/37 ,  H03M13/00 ,  H04L1/00

    CPC分类号： H04L1/0046 ,  H04L1/0083

    摘要： An encoder adds an identifier, being different when the coding should be done or not, into a predetermined location in an original signal, while a decoder reads out the identifier added and detects the condition of coding, so as to decide the execution (ON) of the decoding process to be done or not, automatically. Further, in each of the encoder and the decoder, there is provided a delay output portion, which provides an output treated with only a specific delay but not executing the coding/decoding thereon, separately from a coding process portion or a decoding process portion, wherein a selection can be made, at which one of the signals from the respective process portions and the delay output portion should be outputted, by a setup in an outside operation system with use of a selector.

    摘要翻译： 编码器将当编码完成时不同的标识符添加到原始信号中的预定位置，而解码器读取添加的标识符并检测编码条件，以便决定执行（ON） 的解码过程要自动完成。 此外，在编码器和解码器的每一个中，提供延迟输出部分，其提供仅与特定延迟对应的输出，而不是与编码处理部分或解码处理部分分开地执行其编码/解码， 其中可以通过使用选择器在外部操作系统中的设置来进行来自各个处理部分和延迟输出部分的信号中的哪一个的选择。

    Forward error correcting code encoding equipment, forward error correcting code decoding equipment, and transmission apparatus
    5.
    发明授权
    Forward error correcting code encoding equipment, forward error correcting code decoding equipment, and transmission apparatus 失效
    前向纠错码编码装置，前向纠错码解码装置和发送装置

    公开(公告)号：US06735735B1

    公开(公告)日：2004-05-11

    申请号：US09387895

    申请日：1999-09-01

    申请人： Masaki Ohira ,  Masatoshi Shibasaki ,  Yusuke Yajima ,  Takashi Mori

    发明人： Masaki Ohira ,  Masatoshi Shibasaki ,  Yusuke Yajima ,  Takashi Mori

    IPC分类号： H03M1300

    CPC分类号： H04L1/0046 ,  H04L1/0083

    摘要： An encoder adds an identifier, being different when the coding should be done or not, into a predetermined location in, an original signal, while a decoder reads out the identifier added and detects the condition of coding, so as to decide the execution (ON) of the decoding process to be done or not, automatically. Further, in each of the encoder and the decoder, there is provided a delay output portion, which provides an output treated with only a specific delay but not executing the coding/decoding thereon, separately from a coding process portion or a decoding process portion, wherein a selection can be made, at which one of the signals from the respective process portions and the delay output portion should be outputted, by a setup in an outside operation system with use of a selector.

    摘要翻译： 编码器将当编码完成时不同的标识符添加到原始信号中的预定位置，而解码器读取添加的标识符并检测编码的条件，以便决定执行（ON ）的解码过程要么完成，要么自动完成。 此外，在编码器和解码器的每一个中，提供延迟输出部分，其提供仅与特定延迟对应的输出，而不是与编码处理部分或解码处理部分分开地执行其编码/解码， 其中可以通过使用选择器在外部操作系统中的设置来进行来自各个处理部分和延迟输出部分的信号中的哪一个的选择。

    Optical passive network system and its operation method
    6.
    发明授权
    Optical passive network system and its operation method 失效
    光无源网络系统及其运行方式

    公开(公告)号：US08428457B2

    公开(公告)日：2013-04-23

    申请号：US12767750

    申请日：2010-04-26

    申请人： Masahiko Mizutani ,  Yusuke Yajima ,  Akihiko Tsuchiya

    发明人： Masahiko Mizutani ,  Yusuke Yajima ,  Akihiko Tsuchiya

    IPC分类号： H04J14/00 ,  H04B10/06 ,  H04B10/20

    CPC分类号： H04Q11/0067 ,  H04B10/272 ,  H04J3/0682 ,  H04J3/1694 ,  H04J14/0247 ,  H04J14/0252 ,  H04Q2011/0079 ,  H04Q2011/009

    摘要： In the configuration of an optical communication system interconnecting a parent station and a plurality of child stations via an optical fiber network equipped with an optical splitter, RE is provided having a measuring unit for measuring a transmission distance or time to a child station, a determining unit for determining a timing when a child station transmits a signal, in accordance with a transmission bandwidth request from the child station, and a signal processing unit for processing a signal received from a child station and transmitting the processed signal to the parent station. When a burst signal is received from each child station at the determined timing, a portion of the header of the burst signal is deleted, and a dummy signal is inserted into the deleted area and a gap area between received burst signals to convert the burst signals into a series of signals to be sent to the parent station.

    摘要翻译： 在通过配备有分光器的光纤网络将母站和多个子站互连的光通信系统的配置中，提供具有用于测量到子站的传输距离或时间的测量单元的确定 单元，用于根据来自子站的传输带宽请求确定子站发送信号的定时;以及信号处理单元，用于处理从子站接收的信号，并将处理的信号发送到母站。 当在所确定的定时从每个子站接收到突发信号时，突发信号的头部的一部分被删除，并且将虚拟信号插入到被删除的区域中，以及接收的突发信号之间的间隙区域以转换突发信号 成为一系列要发送给母站的信号。

    Apparatus of adjusting optical signal transmission timing
    7.
    发明授权
    Apparatus of adjusting optical signal transmission timing 有权
    调整光信号传输定时的装置

    公开(公告)号：US07936992B2

    公开(公告)日：2011-05-03

    申请号：US12434959

    申请日：2009-05-04

    申请人： Tohru Kazawa ,  Masaki Ohira ,  Yusuke Yajima ,  Akihiko Tsuchiya ,  Yoshinobu Morita

    发明人： Tohru Kazawa ,  Masaki Ohira ,  Yusuke Yajima ,  Akihiko Tsuchiya ,  Yoshinobu Morita

    IPC分类号： H04J14/00

    CPC分类号： H04B10/272 ,  H04J3/0682 ,  H04J3/1694

    摘要： In a light reception element such as an APD (Avalanche Photo Diode) used for receiving a high-speed and weak optical signal, it is possible to prevent the phenomenon of distortion of a signal inputted after a large-level light is received. A PON (Passive Optical Network) system includes an OLT (Optical Line Terminal) which can impartially and effectively transmit light reception data to each ONU (Optical Network Unit). According to a light reception amplitude received by each ONU, an inter-frame gap of an appropriate length is assigned for each ONU. The OLT includes a unit for measuring and accumulating the reception light amplitude and data on the inter-frame gap of an appropriate length decided in advance according to the characteristic of the light reception device and generates a grant value for assuring an inter-frame gap of an appropriate length by using the both information.

    摘要翻译： 在用于接收高速和弱光信号的APD（雪崩光电二极管）等光接收元件中，可以防止在接收到大电平光之后输入的信号的失真现象。 PON（Passive Optical Network，无源光网络）系统包括能够向每个ONU（Optical Network Unit，光网络单元）公正地有效地发送光接收数据的OLT（Optical Line Terminal）。 根据每个ONU接收的光接收幅度，为每个ONU分配适当长度的帧间间隔。 OLT包括用于根据光接收装置的特性预先确定的适当长度的帧间隙上的接收光幅度和数据的测量和累加单元，并生成用于确保帧间间隔的帧间间隔的准许值 通过使用这两个信息适当的长度。

    OPTICAL PASSIVE NETWORK SYSTEM AND ITS OPERATION METHOD
    8.
    发明申请
    OPTICAL PASSIVE NETWORK SYSTEM AND ITS OPERATION METHOD 失效
    光无源网络系统及其操作方法

    公开(公告)号：US20100272436A1

    公开(公告)日：2010-10-28

    申请号：US12767750

    申请日：2010-04-26

    申请人： Masahiko Mizutani ,  Yusuke Yajima ,  Akihiko Tsuchiya

    发明人： Masahiko Mizutani ,  Yusuke Yajima ,  Akihiko Tsuchiya

    IPC分类号： H04B17/02

    CPC分类号： H04Q11/0067 ,  H04B10/272 ,  H04J3/0682 ,  H04J3/1694 ,  H04J14/0247 ,  H04J14/0252 ,  H04Q2011/0079 ,  H04Q2011/009

    摘要： In the configuration of an optical communication system interconnecting a parent station and a plurality of child stations via an optical fiber network equipped with an optical splitter, RE is provided having a measuring unit for measuring a transmission distance or time to a child station, a determining unit for determining a timing when a child station transmits a signal, in accordance with a transmission bandwidth request from the child station, and a signal processing unit for processing a signal received from a child station and transmitting the processed signal to the parent station. When a burst signal is received from each child station at the determined timing, a portion of the header of the burst signal is deleted, and a dummy signal is inserted into the deleted area and a gap area between received burst signals to convert the burst signals into a series of signals to be sent to the parent station.

    摘要翻译： 在通过配备有分光器的光纤网络将母站和多个子站互连的光通信系统的配置中，提供具有用于测量到子站的传输距离或时间的测量单元的确定 单元，用于根据来自子站的传输带宽请求确定子站发送信号的定时;以及信号处理单元，用于处理从子站接收的信号，并将处理的信号发送到母站。 当在所确定的定时从每个子站接收到突发信号时，突发信号的头部的一部分被删除，并且将虚拟信号插入到被删除的区域中，以及接收的突发信号之间的间隙区域以转换突发信号 成为一系列要发送给母站的信号。

    Passive optical network system and fault determination method
    9.
    发明申请
    Passive optical network system and fault determination method 有权
    无源光网络系统和故障确定方法

    公开(公告)号：US20100067901A1

    公开(公告)日：2010-03-18

    申请号：US12379634

    申请日：2009-02-26

    申请人： Masahiko Mizutani ,  Yusuke Yajima ,  Yoshihiro Ashi

    发明人： Masahiko Mizutani ,  Yusuke Yajima ,  Yoshihiro Ashi

    IPC分类号： H04B10/08 ,  H04J14/02

    CPC分类号： H04B10/03 ,  H04B10/07955 ,  H04B10/272 ,  H04L25/0298 ,  H04Q11/0067 ,  H04Q2011/0081 ,  H04Q2011/0083

    摘要： In a passive optical network system, a parent station includes a reception circuit that receives an optical signal from each of child stations using a threshold used to identify if the optical signal is 0 or 1; a bandwidth setting unit that determines a time at which each child station sends an optical signal; a storage unit that stores thresholds and intensities of optical signals received from the child stations; and a control unit that sets a threshold, stored corresponding to a sending time, in,the reception circuit to control a reception of an optical signal. The control unit has a function that compares an intensity of a signal received from each child station at an optical signal reception time with information stored in the storage unit to detect and determine a fault in the child station or in the optical fiber connected to the child station.

    摘要翻译： 在无源光网络系统中，母站包括接收电路，其使用用于识别光信号是0或1的阈值从每个子站接收光信号; 带宽设定单元，确定每个子站发送光信号的时间; 存储单元，其存储从所述子站接收的光信号的阈值和强度; 以及控制单元，其将接收电路中相应于发送时间存储的阈值设置为控制光信号的接收。 控制单元具有将在光信号接收时刻从每个子站接收的信号的强度与存储在存储单元中的信息进行比较的功能，以检测和确定子站中或连接到该小孩的光纤中的故障 站。

    Passive Optical Network System, Optical Network Unit, and Optical Line Terminal
    10.
    发明申请
    Passive Optical Network System, Optical Network Unit, and Optical Line Terminal 审中-公开
    无源光网络系统，光网络单元和光线路终端

    公开(公告)号：US20090317082A1

    公开(公告)日：2009-12-24

    申请号：US12486104

    申请日：2009-06-17

    申请人： Mitsunobu KIMURA ,  Yusuke Yajima ,  Masahiko Mizutani

    发明人： Mitsunobu KIMURA ,  Yusuke Yajima ,  Masahiko Mizutani

    IPC分类号： H04J14/00

    CPC分类号： H04J3/1694 ,  H04N7/17309 ,  H04Q11/0067 ,  H04Q2011/0064

    摘要： An optical line terminal (OLT), an optical network unit (ONT) and a passive optical network (PON) system are provided. A user of the ONU or a terminal connected with the ONU can accurately recognize the amount of a bandwidth allocated to the ONU without estimating the communication bandwidth. The OLT notifies each ONU of the amount of the bandwidth allocated to the ONU in response to a request transmitted from the ONU to the OLT. Each ONU receives bandwidth information from the OLT and displays thereon the bandwidth information or notifies the terminal connected with the ONU of the bandwidth information.

    摘要翻译： 提供了一种光线路终端（OLT），光网络单元（ONT）和无源光网络（PON）系统。 ONU或与ONU连接的终端的用户可以在不估计通信带宽的情况下，准确地识别分配给ONU的带宽量。 OLT根据从ONU向OLT发送的请求，通知每个ONU分配给ONU的带宽量。 每个ONU从OLT接收带宽信息，并在其上显示带宽信息，或通知与ONU连接的终端带宽信息。