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    Transfer apparatus, transfer network system, and transfer method
    4.
    发明授权
    Transfer apparatus, transfer network system, and transfer method 有权
    传输设备，传输网络系统和传送方式

    公开(公告)号：US08667058B2

    公开(公告)日：2014-03-04

    申请号：US13527311

    申请日：2012-06-19

    申请人： Shinya Fujioka ,  Yoshihiro Ashi ,  Masahiko Mizutani

    发明人： Shinya Fujioka ,  Yoshihiro Ashi ,  Masahiko Mizutani

    IPC分类号： G06F15/16

    CPC分类号： H04L67/1095 ,  H04L67/26 ,  H04L67/325 ,  H04L69/28

    摘要： When data is disclosed to a plurality of users by using a transfer network and a transfer apparatus, data disclosure time control which cannot be adversely affected by the users is performed to reduce the difference in data disclosure time among the users. A transfer network system includes a distribution server serving as a data-distribution-source transfer apparatus, and a network terminal connected to distribution-destination user equipment. The distribution server and the network terminal each have a time keeping function and a time synchronization function for matching the time of the time keeping function with a master clock. The distribution server sends in advance disclosure data and disclosure time to the network terminal. When the time of the time keeping function of the network terminal matches the disclosure time, the network terminal sends the disclosure data to the user equipment.

    摘要翻译： 当通过使用传送网络和传送装置向多个用户公开数据时，执行不受用户不利影响的数据公开时间控制，以减少用户之间的数据公开时间的差异。 传送网络系统包括用作数据分发源传送装置的分发服务器和连接到分发目的地用户设备的网络终端。 分发服务器和网络终端均具有时间保持功能和时间同步功能，用于将时间保持功能的时间与主时钟相匹配。 分发服务器预先向网络终端发送披露数据和公开时间。 当网络终端的时间保持功能与公布时间匹配时，网络终端向用户设备发送公开数据。

    Communication system, subscriber accommodating apparatus and communication method
    5.
    发明授权
    Communication system, subscriber accommodating apparatus and communication method 失效
    通信系统，用户收纳设备和通信方法

    公开(公告)号：US08554075B2

    公开(公告)日：2013-10-08

    申请号：US13144253

    申请日：2009-01-13

    申请人： Masahiko Mizutani ,  Yusuke Yajima ,  Nobuyuki Yamamoto ,  Yoshihiro Ashi

    发明人： Masahiko Mizutani ,  Yusuke Yajima ,  Nobuyuki Yamamoto ,  Yoshihiro Ashi

    IPC分类号： H04J14/00 ,  H04J14/02

    CPC分类号： H04J14/0227 ,  H04L43/0817 ,  H04L43/0852 ,  H04L45/22 ,  H04L45/28 ,  H04Q11/0067 ,  H04Q2011/0081

    摘要： Switching process at the occurrence of a path trouble is performed more quickly to reduce the number of packet discards during a traffic transition from a currently used system path to a standby system path within a section to be protected. An OLT (210-W) refers to the DBA information of a PON section and, if receiving no CCM frame at a timing at which the same should be received, then determines that some trouble has occurred on the path (S801) and transmits, to an OAM-compliant NE (200-Z), an application-for-switching frame (1501) to notify the OAM-compliant NE (200-Z) of the abnormal condition. The OAM-compliant NE (200-Z) monitors the occurrence of the trouble within the PON section nearly in real time, starts a switching process (S802) and generates and transmits a standby-system delivery request (321) (S302, S803). An OAM-compliant NE (200-A) switches the communication path to the standby-system passing through an OLT (210-P).

    摘要翻译： 在发生路径故障时的切换过程被执行得更快以减少从当前使用的系统路径到要保护的区段内的备用系统路径的业务转换期间的丢弃丢弃数量。 OLT（210-W）是指PON部分的DBA信息，并且如果在接收相同的定时不接收到CCM帧，则确定在路径上发生了一些故障（S801） 到符合OAM的NE（200-Z），用于切换交换帧（1501）的OAM兼容NE（200-Z）通知异常状态。 符合OAM标准的NE（200-Z）几乎实时监控PON部分内的故障发生，开始切换处理（S802），生成并发送备用系统传送请求（321）（S302，S803） 。 符合OAM标准的网元（200-A）将通信路径切换到通过OLT（210-P）的备用系统。

    Optical communication system and method for operating the same
    6.
    发明授权
    Optical communication system and method for operating the same 有权
    光通信系统及其操作方法

    公开(公告)号：US08249458B2

    公开(公告)日：2012-08-21

    申请号：US12638383

    申请日：2009-12-15

    申请人： Masahiko Mizutani ,  Yusuke Yajima

    发明人： Masahiko Mizutani ,  Yusuke Yajima

    IPC分类号： H04J14/08

    CPC分类号： H04J3/0682 ,  H04J3/0652 ,  H04Q11/0067 ,  H04Q2011/0081 ,  H04Q2011/009

    摘要： An optical communication system has a master station and a plurality of slave stations connected thereto via an optical fiber network, which is provided with an optical splitter and a relay unit which relays signals transmitted/received between the master station and the plurality of slave stations. The master station includes a first controller for performing ranging between the master station and the relay unit, and the relay unit includes a second controller for performing ranging between the relay unit and the plurality of slave stations. The master station determines, on the basis of the results of ranging performed by the first and second controllers as well as reports from the slave stations, timings for the slave stations to transmit signals to the master station, and receives signals multiplexed through the optical fiber network from the slave stations.

    摘要翻译： 光通信系统具有主站和经由光纤网络连接到其上的多个从站，光纤网络设有光分路器和中继单元，其中继在主站与多个从站之间发送/接收的信号。 主站包括用于在主站和中继单元之间进行测距的第一控制器，并且中继单元包括用于执行中继单元与多个从站之间的测距的第二控制器。 主站基于由第一和第二控制器执行的测距结果以及从站的报告，确定从站向主站发送信号的定时，并且接收通过光纤复用的信号 从站的网络。

    Passive optical network system and operation method of the same
    7.
    发明授权
    Passive optical network system and operation method of the same 有权
    被动光网络系统及其操作方法相同

    公开(公告)号：US08095004B2

    公开(公告)日：2012-01-10

    申请号：US12359413

    申请日：2009-01-26

    申请人： Masahiko Mizutani ,  Yusuke Yajima

    发明人： Masahiko Mizutani ,  Yusuke Yajima

    IPC分类号： H04B10/08 ,  H04B10/00

    CPC分类号： H04J3/0682 ,  H04J14/0282

    摘要： In a passive optical network system, in order that by measuring a transmission distance and a transmission time between an OLT and an ONU in operation of the system, if the distance or the time is short, communication is conducted at a high transmission speed to increase a capacity of user; if the distance or the time is long, communication is conducted at a low transmission speed to increase the capacity of user communicating in a state in which a predetermined quality is secured, a main station includes a signal communication circuit to communicate with subsidiary stations at a first or second transmission speed and a controller to measure a transmission distance or a transmission time between the main station and each subsidiary station. Based on a result of the measurement, the controller selects a transmission speed for communication with the subsidiary station.

    摘要翻译： 在无源光网络系统中，为了通过在系统的操作中测量OLT与ONU之间的传输距离和传输时间，如果距离或时间短，则以高传输速度进行通信以增加 用户容量; 如果距离或时间长，则以低传输速度进行通信，以在确保预定质量的状态下增加用户通信的容量，主站包括信号通信电路，以在子站 第一或第二传输速度，以及用于测量主站和每个辅助站之间的传输距离或传输时间的控制器。 基于测量结果，控制器选择用于与子站通信的传输速度。

    Optical line terminating apparatus and optical communication system
    8.
    发明授权
    Optical line terminating apparatus and optical communication system 有权
    光线路终端设备和光通信系统

    公开(公告)号：US07936991B2

    公开(公告)日：2011-05-03

    申请号：US12068829

    申请日：2008-02-12

    申请人： Toshiki Sugawara ,  Masahiko Mizutani ,  Hiroki Ikeda ,  Kenichi Sakamoto

    发明人： Toshiki Sugawara ,  Masahiko Mizutani ,  Hiroki Ikeda ,  Kenichi Sakamoto

    IPC分类号： H04B10/20 ,  H04J14/00

    CPC分类号： H04L7/0075 ,  H04J3/1694

    摘要： An optical access communication apparatus and an optical access communication system for the coexistence of two wideband PON systems without using an expensive optical device or module. A low-speed PON and a high-speed PON have a same upstream wavelength, and an OLT receives optical signals by a same optical receiver in the two systems, converts the optical signals into electric signals, amplifies the electric signals, branches the amplified electric signals, and processes the branched signals by clock and data recovery sections of bit rates corresponding to the two PON systems, thereby achieving an optical communication apparatus and an optical communication system for constructing a simple and low-cost triple-play service system of excellent transmission quality.

    摘要翻译： 一种用于两个宽带PON系统共存而不使用昂贵的光学设备或模块的光接入通信设备和光接入通信系统。 低速PON和高速PON具有相同的上行波长，并且OLT在两个系统中通过相同的光接收器接收光信号，将光信号转换为电信号，放大电信号，将放大的电 信号，并通过对应于两个PON系统的比特率的时钟和数据恢复部分对分支信号进行处理，从而实现用于构建出色传输的简单且低成本的三重播放业务系统的光通信装置和光通信系统 质量。

    Optical access system
    9.
    发明授权
    Optical access system 有权
    光接入系统

    公开(公告)号：US07773880B2

    公开(公告)日：2010-08-10

    申请号：US12076897

    申请日：2008-03-25

    申请人： Kenichi Sakamoto ,  Yoshihiro Ashi ,  Tohru Kazawa ,  Ryosuke Nishino ,  Masayuki Takase ,  Masahiko Mizutani

    发明人： Kenichi Sakamoto ,  Yoshihiro Ashi ,  Tohru Kazawa ,  Ryosuke Nishino ,  Masayuki Takase ,  Masahiko Mizutani

    IPC分类号： H04B10/00

    CPC分类号： H04J3/1694 ,  H04J3/0682

    摘要： An optical access system capable of avoiding cutoffs or interruption in the periodically transmitted signals that occur during the ranging time is provided. A first method to avoid signal cutoffs is to stop periodic transmit signals at the transmitter during the ranging period, and transmit all the periodic transmit signals together when the ranging ends, and buffer the signals at the receiver to prepare for ranging. A second method is to fix definite periods ahead of time for performing ranging, then cluster the multiple periodic transmit signals together in sets at the transmitter and send them, and then disassemble those sets back into signals at the receiver. The transmitting and receiving is then controlled so that the transmit periods do not overlap with the ranging periods. In this way an optical access system is provided that can send and receive signals requiring periodic transmissions without interruption even during ranging operation.

    摘要翻译： 提供一种能够避免在测距时间期间发生的周期性发射信号中的截断或中断的光接入系统。 避免信号截止的第一种方法是在测距周期期间在发射机处停止周期性发射信号，并且在测距结束时将所有周期性发射信号传输到一起，并且在接收机处缓冲信号以准备测距。 第二种方法是提前确定一段时间进行测距，然后将多个周期性发射信号集合在一起，并将其发送给发射机，然后将它们分组回接收机的信号。 然后控制发送和接收，使得发送周期不与测距周期重叠。 以这种方式，提供光接入系统，即使在测距操作期间也可以发送和接收需要周期性传输的信号而不中断。