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。

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。

公开(公告)号：US07649890B2

公开(公告)日：2010-01-19

申请号：US11211589

申请日：2005-08-26

申请人： Masahiko Mizutani ,  Masayuki Hino

发明人： Masahiko Mizutani ,  Masayuki Hino

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04J3/16 ,  H04J3/22

CPC分类号： H04L47/825 ,  H04L47/2408 ,  H04L47/70 ,  H04L47/745 ,  H04L47/765 ,  H04L47/803 ,  H04L47/808

摘要： In a network for forwarding user packets by a tunneling protocol, an egress edge node to which tunnels concentrate from a plurality of ingress edge nodes allocates a bandwidth to each of sessions multiplexed through each of the tunnels and notifies each of the ingress edge nodes of the allocated bandwidth, and the ingress node notifies private routers or terminal devices of the allocated bandwidth.

摘要翻译： 在用于通过隧道协议转发用户分组的网络中，从多个入口边缘节点集中的隧道的出口边缘节点向通过每个隧道复用的会话中的每一个分配带宽，并通知每个入口边缘节点 分配带宽，入口节点向专用路由器或终端设备通知所分配的带宽。

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。

公开(公告)号：US20090162065A1

公开(公告)日：2009-06-25

申请号：US12337793

申请日：2008-12-18

申请人： Masahiko Mizutani ,  Toshiki Sugawara ,  Hiroki Ikeda

发明人： Masahiko Mizutani ,  Toshiki Sugawara ,  Hiroki Ikeda

IPC分类号： H04J14/00

CPC分类号： H04Q11/0067 ,  H04J3/0655 ,  H04J3/0682 ,  H04L7/0008 ,  H04Q2011/0064 ,  H04Q2011/0079

摘要： It is necessary to completely remove overlapping of signals between plural PONs in order to make the PONs coexist. Accordingly, it is required to share or intensively manage bandwidth use conditions over an optical fiber that serves as a common band between plural systems. Therefore, transmission clocks should be synchronized with high accuracy between plural systems. A reference clock is provided from an external device or a representative OLT to the entire systems to perform clock synchronization between plural systems, so that the overall systems are synchronized by synchronizing each OLT with the reference clock. A hierarchical management method is selected that manages ONUs under the control of each OLT by managing band use information arranged for each OLT with respect to an external device or a representative OLT for sharing of bandwidth use conditions between plural systems.

摘要翻译： 为了使PON共存，必须完全消除多个PON之间的信号重叠。 因此，需要在用作多个系统之间的公共频带的光纤上共享或集中管理带宽使用条件。 因此，传输时钟应该在多个系统之间以高精度同步。 从外部设备或代表性OLT向整个系统提供参考时钟以在多个系统之间执行时钟同步，使得通过使每个OLT与参考时钟同步来使整个系统同步。 选择分级管理方法，通过管理针对每个OLT针对外部设备或代表性的OLT布置的用于共享多个系统之间的带宽使用条件的代表性OLT来管理在每个OLT的控制下的ONU。

公开(公告)号：US20060187942A1

公开(公告)日：2006-08-24

申请号：US11211589

申请日：2005-08-26

申请人： Masahiko Mizutani ,  Masayuki Hino

发明人： Masahiko Mizutani ,  Masayuki Hino

IPC分类号： H04L12/56 ,  H04L12/54

CPC分类号： H04L47/825 ,  H04L47/2408 ,  H04L47/70 ,  H04L47/745 ,  H04L47/765 ,  H04L47/803 ,  H04L47/808

摘要： In a network for forwarding user packets by a tunneling protocol, an egress edge node to which tunnels concentrate from a plurality of ingress edge nodes allocates a bandwidth to each of sessions multiplexed through each of the tunnels and notifies each of the ingress edge nodes of the allocated bandwidth, and the ingress node notifies private routers or terminal devices of the allocated bandwidth.

摘要翻译： 在用于通过隧道协议转发用户分组的网络中，从多个入口边缘节点集中的隧道的出口边缘节点向通过每个隧道复用的会话中的每一个分配带宽，并通知每个入口边缘节点 分配带宽，入口节点向专用路由器或终端设备通知所分配的带宽。

公开(公告)号：US06319162B1

公开(公告)日：2001-11-20

申请号：US09508588

申请日：2000-06-05

申请人： Tamaki Mizutani ,  Masahiko Mizutani ,  Masashi Watanabe ,  Yukitoshi Ogawa

发明人： Tamaki Mizutani ,  Masahiko Mizutani ,  Masashi Watanabe ,  Yukitoshi Ogawa

IPC分类号： F16H5900

CPC分类号： F16H55/56 ,  F16D3/06 ,  Y10T29/49453

摘要： A sliding key slidable in an axial direction of a rotary shaft and engaging a sliding cylinder such that the sliding key follows a rotation of the sliding cylinder. The sliding key is a molded product of a metal-molded part and a resinous part. The sliding key does not malfunction or fail when it is used in an environment of a high temperature and a high load.

摘要翻译： 滑动键可沿旋转轴的轴向滑动并与滑动气缸接合，使得滑动键跟随滑动气缸的旋转。 滑动键是金属模制部件和树脂部件的模制产品。 当在高温高负荷的环境下使用时，滑动键不会发生故障或失效。

公开(公告)号：US08457493B2

公开(公告)日：2013-06-04

申请号：US12903931

申请日：2010-10-13

申请人： Masahiko Mizutani

发明人： Masahiko Mizutani

IPC分类号： H04J14/00

CPC分类号： H04Q11/0067 ,  H04J3/0652 ,  H04J3/0682 ,  H04Q2011/0073

摘要： In the communication system, a master station is coupled to slave stations by a fiber network comprising a splitter and a reach extender, the master station includes a first bandwidth control section which determines, based on a request from each slave station, a first data amount of a signal transmitted in a first cycle, the reach extender includes: a distance measurement section which measures a distance or a time between the reach extender and each slave station; and a second bandwidth control section which determines a second data amount and transmission timing of a signal based on a request from each slave station and the first data amount, and each slave station transmits a signal with a data amount, which the first bandwidth control section determined based on a data amount and transmission timing determined in second cycles, to the master station in the first cycle.

摘要翻译： 在通信系统中，主站通过包括分离器和扩展器的光纤网络耦合到从站，主站包括第一带宽控制部分，其基于来自每个从站的请求确定第一数据量 在第一周期中发送的信号，延伸器包括：距离测量部分，其测量到达延伸器与每个从站之间的距离或时间; 以及第二带宽控制部，其基于来自每个从站的请求和所述第一数据量来确定信号的第二数据量和发送定时，并且每个从站发送具有数据量的信号，所述第一带宽控制部 基于在第二周期中确定的数据量和发送定时确定的，在第一周期中向主站确定。

公开(公告)号：US20120331043A1

公开(公告)日：2012-12-27

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。

公开(公告)号：US08290369B2

公开(公告)日：2012-10-16

申请号：US12379281

申请日：2009-02-18

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。