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    • 31. 发明申请
    • QoS oriented handover method for mobile IPv6 in MPLS network
    • 基于QoS的移动IPv6在MPLS网络中的切换方法
    • US20050232188A1
    • 2005-10-20
    • US11059488
    • 2005-02-17
    • Kenichi SakamotoShiro TanabeHui DengHiroki Ikeda
    • Kenichi SakamotoShiro TanabeHui DengHiroki Ikeda
    • H04W36/36H04L12/701H04L29/06H04W36/00H04W40/34H04W40/36H04W80/00H04W80/04H04Q7/00
    • H04W40/36H04L45/24H04L45/50H04W36/0011H04W80/00
    • The present invention provides a method building a handover system to improve the service quality in mobile networks. When a mobile node has received a plurality of care-of addresses, it will send a Prepare Multi-path (PM) message to a correspondent node. Once receiving the PM message, each router replaces the old input label in the PM message with a new input label, and then sends it to the next router. Each router adds a new item into the Split Path Table based on the received message. After sending the PM message, the mobile node sends a Request Multi-path (RM) message to a correspondent node. Each MPLS core router decides whether to stop the RM message or not when the RM message is received. If it is yes, the corresponding input label will be split and the generated data packet will be transmitted to two paths from this router. One is the path in the network where the mobile node has been located, another one is a new path in the visiting network.
    • 本发明提供了建立切换系统以提高移动网络中的服务质量的方法。 当移动节点已经接收到多个转交地址时,它将向对方节点发送准备多路径(PM)消息。 一旦接收到PM消息,每个路由器将使用新的输入标签替换PM消息中的旧输入标签,然后将其发送到下一个路由器。 每个路由器根据收到的消息将新项目添加到分割路径表中。 在发送PM消息之后,移动节点向通信节点发送请求多路径(RM)消息。 当接收到RM消息时,每个MPLS核心路由器决定是否停止RM消息。 如果为是,相应的输入标签将被拆分,并且生成的数据包将从该路由器传输到两条路径。 一个是移动节点所在的网络中的路径,另一个是访问网络中的新路径。
    • 32. 发明授权
    • Memory system handling a plurality of bits as a unit to be processed
    • 处理作为要处理的单元的多个位的存储器系统
    • US4434502A
    • 1984-02-28
    • US250784
    • 1981-04-03
    • Takeshi ArakawaHiroki Ikeda
    • Takeshi ArakawaHiroki Ikeda
    • G06F12/02G06F15/20
    • G06F12/0207
    • A memory system for simultaneously extracting a desired block of data in response to an address specifying only the center bit of the block. The input address is modified through an arithmetic circuit wherein the address representing the center bit is added to and subtracted from to produce a plurality of addresses which are used to address a plurality of separate memory blocks. The outputs from the memory blocks are passed through a selection alignment matrix circuit which selects from the outputs of the memory blocks only those bits in the desired block of data and aligns those bits in a predetermined array. Bits other than those in the desired block of data are discarded.
    • 一种用于响应于仅指定块的中心位的地址同时提取所需数据块的存储器系统。 输入地址通过算术电路进行修改,其中表示中心位的地址被加到并被减去以产生用于寻址多个单独的存储块的多个地址。 来自存储器块的输出通过选择对准矩阵电路,其从存储器块的输出仅选择所需数据块中的那些位,并将这些位对齐在预定的阵列中。 除了期望的数据块之外的位被丢弃。
    • 33. 发明授权
    • Optical access system, optical switching unit and optical line terminal
    • 光接入系统,光交换单元和光线路终端
    • US08401384B2
    • 2013-03-19
    • US12503884
    • 2009-07-16
    • Koji WakayamaHiroki IkedaMichitaka OkunoKenichi Sakamoto
    • Koji WakayamaHiroki IkedaMichitaka OkunoKenichi Sakamoto
    • H04J14/00H04B10/00
    • H04Q11/0067H04Q2011/0045H04Q2011/0064
    • Provided is an optical access system, including: an optical line terminal, a plurality of optical network units and an optical switching unit. The optical line terminal sends to the optical switching unit a control frame including a switching time when the optical switching unit is to make a switch from one of the optical communication paths between the optical line terminal and the plurality of optical network units to another, and an identifier of an optical communication path to which the switch is made in order to switch the optical communication paths between the optical line terminal and the plurality of optical network units. The optical switching unit switches the optical communication paths between the optical line terminal and the plurality of optical network units based on the switching time and the identifier of the optical communication path after switching which are included in the control frame.
    • 提供一种光接入系统,包括:光线路终端,多个光网络单元和光交换单元。 光线路终端向光交换单元发送包括切换时间的控制帧,当光交换单元从光线路终端与多个光网络单元之间的光通信路径之一进行切换时,切换时间为 为了切换光线路终端与多个光网络单元之间的光通信路径而进行交换的光通信路径的标识符。 光切换单元基于包括在控制帧中的切换时间和切换后的光通信路径的标识符,切换光线路终端与多个光网络单元之间的光通信路径。
    • 34. 发明授权
    • Bandwidth-allocating device and method
    • 带宽分配装置及方法
    • US08259751B2
    • 2012-09-04
    • US12037538
    • 2008-02-26
    • Ying ShiHiroki IkedaHideya Yoshiuchi
    • Ying ShiHiroki IkedaHideya Yoshiuchi
    • H04J3/16
    • H04Q11/0067H04Q11/0071H04Q2011/0064H04Q2011/0084H04Q2011/0088H04W8/26H04W28/18H04W72/04
    • In the bandwidth-allocating method of the present invention for PON (: Passive Optical Network), a bandwidth is allocated from an optical line terminal to each optical network unit. The optical line terminal stores a bandwidth contract table for indicating a correspondence relationship between communication flow IDs and service quality parameters, each communication flow ID identifying each communication flow between the optical line terminal and each optical network unit. The bandwidth-allocating method includes a step of transmitting a service-quality request message including the communication flow IDs and the service quality parameters from each optical network unit to the optical line terminal, and a step of the optical line terminal's updating the bandwidth contract table based on the service quality parameters, and performing the bandwidth allocation to a communication flow specified by the corresponding communication flow ID based on the bandwidth contract table.
    • 在本发明的PON(无源光网络)的带宽分配方法中,从光线路终端向各光网络单元分配带宽。 光线路终端存储用于指示通信流ID和服务质量参数之间的对应关系的带宽合同表,每个通信流ID标识光线路终端和每个光网络单元之间的每个通信流。 带宽分配方法包括从每个光网络单元向光线路终端发送包括通信流ID和服务质量参数的服务质量请求消息的步骤,以及光线路终端更新带宽合同表的步骤 基于服务质量参数,并且基于带宽合同表对由相应的通信流ID指定的通信流执行带宽分配。
    • 35. 发明申请
    • Transimpedance Amplifier and Pon System
    • 互阻放大器和Pon系统
    • US20110291766A1
    • 2011-12-01
    • US13145047
    • 2010-01-13
    • Daisuke MashimoHiroki IkedaYoshinobu Morita
    • Daisuke MashimoHiroki IkedaYoshinobu Morita
    • H03F3/08
    • H03F3/087H03F1/083H03G3/3084H04B10/272H04B10/6931
    • In a gain-switching-type transimpedance amplifier, in order to provide a technique capable of preventing unnecessary gain switching caused when noise is received, and preventing decrease in sensitivity caused when noise with a large input level is received, and then, a burst signal with a small input level is received, a transimpedance amplifier 5 includes: a pre-amplifier 200 to which the burst signal is inputted; an average detection start determination unit 300 for comparing an output of a pre-amplifier 200 with a first threshold voltage; an average detection circuit 400 for detecting and outputting an average value of the output of the pre-amplifier 200 during a certain period of time from a time point when the output of the pre-amplifier 200 exceeds the first threshold voltage; and a gain switching control unit 500 for determining whether to switch a gain of the pre-amplifier 200 based on an output of the average detection circuit 400.
    • 在增益切换式跨阻放大器中,为了提供能够防止在接收到噪声时引起的不必要的增益切换的技术,并且防止在接收到具有大输入电平的噪声时引起的灵敏度降低,然后,突发信号 在接收到小的输入电平的情况下,跨阻抗放大器5包括:输入突发信号的前置放大器200; 平均检测开始判定单元300,用于将前置放大器200的输出与第一阈值电压进行比较; 平均检测电路400,用于在从前置放大器200的输出超过第一阈值电压的时间点起,在一定时间段内检测并输出前置放大器200的输出的平均值; 以及用于基于平均检测电路400的输出来确定是否切换前置放大器200的增益的增益切换控制单元500。
    • 37. 发明申请
    • Multirate Burst Mode Receiver
    • 多速率突发模式接收机
    • US20110222866A1
    • 2011-09-15
    • US13011280
    • 2011-01-21
    • Daisuke MASHIMOMasahito TakeiJun SugawaHiroki Ikeda
    • Daisuke MASHIMOMasahito TakeiJun SugawaHiroki Ikeda
    • H04B10/06
    • H04B10/6932H04B10/272H04B10/6931H04L25/0262
    • There is a need to provide a multirate burst mode receiver for an OLT to be capable of receiving a high-speed burst signal without the need for a special capability of an ONU in a PON system including a mix of ONUs at different transmission bit rates. A multirate burst mode receiver according to the invention includes a signal input discrimination section and a bit rate discrimination section. The signal input discrimination section detects an average amplitude to discriminate signal input. The bit rate discrimination section detects an envelope curve for a high-frequency component to discriminate a signal bit rate. Based on a discrimination result from the signal input discrimination section and the bit rate discrimination section, the multirate burst mode receiver switches a setting for an optical signal reception section and a serial-parallel converter corresponding to the reception bit rate.
    • 需要提供一种用于OLT的多速率突发模式接收机,以能够接收高速脉冲信号,而不需要PON系统中的特殊能力,包括不同传输比特率的ONU的混合。 根据本发明的多速率突发模式接收机包括信号输入鉴别部分和比特率鉴别部分。 信号输入鉴别部分检测平均幅度以区分信号输入。 比特率识别部分检测用于高频分量的包络线,以区分信号比特率。 基于来自信号输入鉴别部分和比特率鉴别部分的鉴别结果,多速率突发模式接收机切换与接收比特率相对应的光信号接收部分和串行 - 并行转换器的设置。
    • 38. 发明授权
    • Passive optical network system for supporting virtual ethernet service and method for the same
    • 被动光网络系统支持虚拟以太网服务和方法相同
    • US07912071B2
    • 2011-03-22
    • US11727446
    • 2007-03-27
    • Hiroki IkedaJuan Wu
    • Hiroki IkedaJuan Wu
    • H04L12/56H04L12/28
    • H04L12/2885H04L12/2856H04Q11/0067H04Q11/0071H04Q2011/0088
    • A passive optical network (PON) system includes at least one optical line terminal (OLT), a plurality of optical network units (ONUs) connected to each OLT, and an OLT management server used to manage the OLT. The OLT management server creates a VLAN access control table in response to a user's request to indicate a VID translation relation among different VLAN identifiers (VIDs) and sends a VID translation relation described in the VLAN access control table to the OLT, and the OLT creates a VLAN translation table indicating a correspondence relation between a source VID and a destination VID, which are waiting for translation, based on the received VID translation relation. If the OLT determines that a VID included in a received frame must be translated based on the VLAN translation table, the OLT references the VLAN translation table to translate the VID included in the received frame to a corresponding destination VID.
    • 无源光网络(PON)系统包括至少一个光线路终端(OLT),连接到每个OLT的多个光网络单元(ONU)和用于管理OLT的OLT管理服务器。 OLT管理服务器响应于用户的请求,创建VLAN访问控制表,以指示不同VLAN标识符(VID)之间的VID转换关系,并将VLAN访问控制表中描述的VID转换关系发送给OLT,OLT创建 基于所接收的VID转换关系,指示源VID和正在等待转换的目的地VID之间的对应关系的VLAN转换表。 如果OLT根据VLAN转换表确定必须转换接收到的帧中包含的VID,则OLT引用VLAN转换表,将接收到的帧中包含的VID转换为相应的目标VID。