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    Optical switching device, optical access network, optical switching method, program, and recording medium
    4.
    发明授权
    Optical switching device, optical access network, optical switching method, program, and recording medium 有权
    光交换设备，光接入网，光交换方式，程序和记录介质

    公开(公告)号：US08045857B2

    公开(公告)日：2011-10-25

    申请号：US11640951

    申请日：2006-12-19

    申请人： Takumi Nomura ,  Hiromi Ueda ,  Kunitetsu Makino ,  Hiroaki Kurokawa ,  Toshinori Tsuboi ,  Hiroyuki Kasai ,  Hirokazu Kobayashi

    发明人： Takumi Nomura ,  Hiromi Ueda ,  Kunitetsu Makino ,  Hiroaki Kurokawa ,  Toshinori Tsuboi ,  Hiroyuki Kasai ,  Hirokazu Kobayashi

    IPC分类号： H04B10/02

    CPC分类号： H04Q11/0067 ,  H04Q11/0066 ,  H04Q11/0071

    摘要： In an optical access network using an optical switching device, a 2×1 optical splitter in the uplink and downlink directions is eliminated to extend the transmission distance between the OLT and the ONU. An optical switching device includes a downlink optical switch element for switching a downlink optical signal sent by an OLT, an uplink optical switch element for switching an uplink optical signal sent by a plurality of ONU, an O/E for converting a downlink optical signal to a first electrical signal, an E/O for converting the first electrical signal to a downlink optical signal and inputting the downlink optical signal to the downlink optical element, an O/E for converting an uplink optical signal output from the uplink optical switch element to a second electrical signal, and an E/O for converting the second electrical signal to an uplink optical signal and sending the uplink optical signal to the OLT.

    摘要翻译： 在使用光交换设备的光接入网中，消除了上行和下行方向上的2×1光分路器，以延长OLT与ONU之间的传输距离。 一种光交换装置，包括用于切换由OLT发送的下行光信号的下行光开关元件，用于切换由多个ONU发送的上行光信号的上行光开关元件，将下行光信号转换为 第一电信号，用于将第一电信号转换为下行光信号并将下行光信号输入到下行光学元件的E / O，用于将从上行光开关元件输出的上行光信号转换为 第二电信号和用于将第二电信号转换为上行光信号并将上行光信号发送到OLT的E / O。

    WIRELESS BASE STATION AND WIRELESS COMMUNICATION SYSTEM USING THE SAME
    5.
    发明申请
    WIRELESS BASE STATION AND WIRELESS COMMUNICATION SYSTEM USING THE SAME 有权
    无线基站和无线通信系统

    公开(公告)号：US20130336188A1

    公开(公告)日：2013-12-19

    申请号：US14000773

    申请日：2012-02-16

    申请人： Hiroyuki Yomo ,  Yoshihisa Kondo ,  Suhua Tang ,  Sadao Obana ,  Tetsuya Ito ,  Akira Matsumoto ,  Koichi Yoshimura

    发明人： Hiroyuki Yomo ,  Yoshihisa Kondo ,  Suhua Tang ,  Sadao Obana ,  Tetsuya Ito ,  Akira Matsumoto ,  Koichi Yoshimura

    IPC分类号： H04W52/02

    CPC分类号： H04W52/0206 ,  Y02B70/32 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/162

    摘要： A wireless base station (1) includes a wakeup device (13) and a main device (14). When the main device (14) is in a sleep mode, the wakeup device (13) is connected to the antenna (11). Then, when the wakeup device (13) receives a wakeup signal for activating the wireless base station (1) from a terminal device assigned to the wireless base station (1) in a communication band used for wireless communication with the terminal device and when the information for identifying a wireless base station to be activated contained in the received wakeup signal is identical with the identification information of the wireless base station (1), the wakeup device (13) outputs a driving signal to the main device (14). The main device (14) transitions from the sleep mode to an operating mode in response to the driving signal from the wakeup device (13).

    摘要翻译： 无线基站（1）包括唤醒设备（13）和主设备（14）。 当主设备（14）处于睡眠模式时，唤醒设备（13）连接到天线（11）。 然后，当唤醒装置（13）在与终端装置进行无线通信的通信频带中从分配给无线基站（1）的终端装置接收到激活无线基站（1）的唤醒信号时， 用于识别接收到的唤醒信号中包含的要激活的无线基站的信息与无线基站（1）的识别信息相同，所述唤醒设备（13）向主设备（14）输出驱动信号。 响应于来自唤醒装置（13）的驱动信号，主装置（14）从睡眠模式转换到操作模式。

    Synchronizing method in optical access network, optical switching device, center device, and remote device
    6.
    发明授权
    Synchronizing method in optical access network, optical switching device, center device, and remote device 有权
    光接入网，光交换设备，中心设备和远程设备的同步方法

    公开(公告)号：US07616899B2

    公开(公告)日：2009-11-10

    申请号：US11366842

    申请日：2006-03-03

    申请人： Takumi Nomura ,  Hiromi Ueda ,  Kunitetsu Makino ,  Hiroyuki Kasai ,  Toshinori Tsuboi ,  Hiroaki Kurokawa ,  Hirokazu Kobayashi ,  Hiroyuki Endo

    发明人： Takumi Nomura ,  Hiromi Ueda ,  Kunitetsu Makino ,  Hiroyuki Kasai ,  Toshinori Tsuboi ,  Hiroaki Kurokawa ,  Hirokazu Kobayashi ,  Hiroyuki Endo

    IPC分类号： H04B10/00 ,  H04J14/00

    CPC分类号： H04Q11/0067 ,  H04J3/0682 ,  H04L7/0075 ,  H04Q2011/0045 ,  H04Q2011/0064

    摘要： To provide synchronizing methods, optical switch modules, center devices, remote devices, optical access systems, optical access networks, programs, and recording media in the optical access network which can give the connection start time of the upstream optical switching element of the optical switch module. To the optical switch module, ranging functions are provided and the center device OLU carries out ranging of the optical switch module OSM as is the case of ranging of the remote device ONU. The center device OLU transmits the difference between roundtrip time of the remote device ONU and roundtrip time of optical switch module OSM, which is the result of these rangings, to the optical switch module OSM, and the optical switch module OSM can obtain the contact start time of the upstream optical switching element by calculating the contact start time using the difference.

    摘要翻译： 为了提供光接入网络中的同步方法，光交换模块，中心设备，远程设备，光接入系统，光接入网，程序和记录介质，其可以给出光开关的上游光交换单元的连接开始时间 模块。 向光交换机模块提供测距功能，中心设备OLU与远程设备ONU的测距情况一样，执行光交换模块OSM的测距。 中心设备OLU将远程设备ONU的往返时间和这些监控结果的光交换机模块OSM的往返时间之间的差异发送到光开关模块OSM，光开关模块OSM可以获得接触开始 通过使用该差值计算接触开始时间来确定上游光开关元件的时间。

    Adaptive access control in LAN relaying apparatus
    8.
    发明授权
    Adaptive access control in LAN relaying apparatus 有权
    LAN中继设备中的自适应访问控制

    公开(公告)号：US07190675B2

    公开(公告)日：2007-03-13

    申请号：US10294373

    申请日：2002-11-14

    申请人： Yoshiaki Numata

    发明人： Yoshiaki Numata

    IPC分类号： G01R31/08

    CPC分类号： H04L47/29 ,  H04L47/10 ,  H04L47/12 ,  H04L47/13

    摘要： In a LAN relaying apparatus, a reception side control circuit receives a reception side write pointer from a reception side write control circuit and a reception side read pointer from a reception side read control circuit, and determines a reception side pointer difference between the side reception side write pointer and the reception side read pointer. Then, the control circuit controls the reception side read control circuit to start the second side read operation when the reception side pointer difference is equal to a reception side first threshold held therein. Subsequently, the reception side control circuit controls the reception side write control circuit and the reception side read control circuit such that the first side write operation or the second side read operation is carried out based on the reception side pointer difference, when the reception side pointer difference is not equal to the reception side first threshold after the start of the second side read operation.

    摘要翻译： 在LAN中继装置中，接收侧控制电路从接收侧读控制电路接收来自接收侧写控制电路的接收侧写指针和接收侧读指针，并且确定侧接收侧之间的接收侧指针差 写指针和接收端读指针。 然后，当接收侧指针差等于其中保持的接收侧第一阈值时，控制电路控制接收侧读控制电路开始第二侧读操作。 随后，接收侧控制电路控制接收侧写入控制电路和接收侧读取控制电路，使得当接收侧指针在接收侧指针时基于接收侧指针差异执行第一侧写入操作或第二侧读取操作 在第二侧读取操作开始之后，差异不等于接收侧第一阈值。

    Interference prediction apparatus, interference prediction method, and interference prediction program in computer-readable medium
    9.
    发明授权
    Interference prediction apparatus, interference prediction method, and interference prediction program in computer-readable medium 有权
    计算机可读介质中的干扰预测装置，干扰预测方法和干扰预测程序

    公开(公告)号：US08000714B2

    公开(公告)日：2011-08-16

    申请号：US11826190

    申请日：2007-07-12

    申请人： Akira Matsumoto ,  Tetsuya Ito

    发明人： Akira Matsumoto ,  Tetsuya Ito

    IPC分类号： H04W72/00

    CPC分类号： H04W72/082

    摘要： An interference prediction apparatus capable of predicting a wireless channel in which channel interference occurs, measures a received signal strength for each wireless channel and predicts an interference area of the wireless channel in which channel interference occurs for each wireless channel on the basis of the received signal strength for each wireless channel.

    摘要翻译： 一种能够预测发生信道干扰的无线信道的干扰预测装置，对每个无线信道的接收信号强度进行测定，并且基于接收信号，预测出对每个无线信道发生信道干扰的无线信道的干扰区域 每个无线信道的强度。

    Wireless base station, communication system, belonging information management method and storage medium for storing program
    10.
    发明授权
    Wireless base station, communication system, belonging information management method and storage medium for storing program 有权
    无线基站，通信系统，归属信息管理方法和用于存储程序的存储介质

    公开(公告)号：US08385260B2

    公开(公告)日：2013-02-26

    申请号：US12329731

    申请日：2008-12-08

    申请人： Yoshiaki Takakura ,  Kenichi Abe ,  Tetsuya Ito ,  Akira Matsumoto ,  Hiroyuki Iizuka ,  Yuichiro Ezure

    发明人： Yoshiaki Takakura ,  Kenichi Abe ,  Tetsuya Ito ,  Akira Matsumoto ,  Hiroyuki Iizuka ,  Yuichiro Ezure

    IPC分类号： H04B1/00 ,  H04L12/28

    CPC分类号： H04W8/02 ,  H04W8/08 ,  H04W92/20

    摘要： The present invention is to allow prompt and reliable synchronization of belonging information management table even in environments where there is a possibility of receiving update notification information from a plurality of wireless base stations, without needing unnecessarily large traffic for synchronization of belonging information management table. Wireless base station stores belonging information management table, to which belonging information of a terminal belonging to the base station is associated with, to new/old judgment information for judgment of new/old of update. Belonging information update unit performs update of belonging information including the new/old judgment information thereof. Further, upon receiving update notification information from other wireless base station, the belonging information update unit updates the belonging information management table based on the update notification information. The update notification information includes at least updated portion in the belonging information and new/old judgment information.

    摘要翻译： 本发明即使在有可能从多个无线基站接收到更新通知信息的环境中也能够即时地，可靠地同步所属信息管理表，而不需要用于业务信息管理表的同步的不必要的大流量。 无线基站将属于基站的终端的归属信息所属的信息管理表存储在新的/旧的更新判断信息中。 所属信息更新单元执行包括其新旧判断信息的归属信息的更新。 此外，归属信息更新单元从其他无线基站接收到更新通知信息时，根据更新通知信息来更新归属信息管理表。 更新通知信息至少包括所属信息和新旧判断信息中的更新部分。