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    • 22. 发明授权
    • Communication control apparatus and method
    • 通信控制装置及方法
    • US08254928B2
    • 2012-08-28
    • US12253279
    • 2008-10-17
    • Masahiro WatanabeMakoto Yoshida
    • Masahiro WatanabeMakoto Yoshida
    • H04W36/00
    • H04W36/30H04B7/15507H04W84/005H04W88/08
    • A communication control apparatus that is applied to a wireless communication system in which a mobile terminal can be connected to a fixed base station through a wireless connection to a relay station that is mounted on a moving body, wherein the communication control apparatus includes a detecting unit that detects a change, associated with movement of the moving body on which the relay station is mounted, of a communication environment between the mobile terminal and the relay station, a control unit that controls a handover of the mobile terminal according to the change, detected by the detecting unit, of communication environment between the mobile terminal and the relay station.
    • 一种应用于无线通信系统的通信控制装置,其中移动终端可以通过无线连接与固定基站连接到安装在移动体上的中继站,其中通信控制装置包括检测单元 检测与所述移动终端与所述中继站之间的通信环境相关联的与所述中继站所在的移动体的移动相关联的变化,控制单元,其根据所述变化来控制所述移动终端的切换; 由检测单元检测移动终端与中继站之间的通信环境。
    • 23. 发明申请
    • QUARTZ GLASS BURNER
    • QUARTZ玻璃燃烧器
    • US20120073332A1
    • 2012-03-29
    • US13236280
    • 2011-09-19
    • Makoto Yoshida
    • Makoto Yoshida
    • C03B37/018C03B19/00
    • C03B32/00C03B19/1423C03B37/0142C03B2207/12C03B2207/14C03B2207/20F23D91/02F23D2900/21005
    • The present invention provides a quartz glass burner that can enhance the heating power of flame working without unnecessarily increasing the flow of combustion gas and improve the deposition efficiency on depositing glass particles onto a porous glass preform. The quartz glass burner has a large diameter outer tube, and a plurality of small diameter inner tubes enclosed in the outer tube, and a tip of the outer tube has a port defining member defining the outer shape of a combustion gas ejecting port that ejects combustion gas, and the port defining member protrudes from the inner circumference of the outer tube towards the center axis so as to block the outermost area including areas between the outer circumferences of a plurality of inner tubes forming the inner tube row and the inner circumference of the outer tube of the combustion gas flow path.
    • 本发明提供一种石英玻璃燃烧器,其可以增强火焰加热的功率,而不会不必要地增加燃烧气体的流动,并且提高在多孔玻璃预制件上沉积玻璃颗粒时的沉积效率。 石英玻璃燃烧器具有大直径的外管和封闭在外管中的多个小直径的内管,并且外管的尖端具有限定燃烧气体喷射口的外形的端口限定构件,其排出燃烧 气体和端口限定构件从外管的内圆周朝向中心轴线突出,以便阻止包括形成内管排的多个内管的外周与内管排的内周之间的区域的最外区域 燃烧气体流路的外管。
    • 24. 发明授权
    • Radio communications system and antenna pattern switching
    • 无线电通信系统和天线方向切换
    • US08000648B2
    • 2011-08-16
    • US11826730
    • 2007-07-18
    • Makoto YoshidaMasahiro Watanabe
    • Makoto YoshidaMasahiro Watanabe
    • H04B3/36H04B7/14
    • H04W16/28H04B7/026H04B7/0617H04B7/1555
    • A radio communications system having a radio base station and a radio relay station is disclosed. A terminal performs radio communications through a link with the radio base station or a link with the radio base station via the radio relay station. The radio base station includes an antenna gain pattern switching part configured to switch between an omnidirectional antenna gain pattern and an adaptive array antenna gain pattern forming a beam; and a control part configured to direct the beam to the terminal in one of an extended service area covered by the adaptive array antenna gain pattern outside a regular service area covered by the omnidirectional antenna gain pattern and the service area of the radio relay station by causing the antenna gain pattern switching part to switch to the adaptive array antenna gain pattern.
    • 公开了一种具有无线电基站和无线电中继站的无线电通信系统。 终端经由无线基站与无线基站的链路进行无线通信,经由无线中继站进行无线通信。 无线基站包括:天线增益模式切换部,被配置为在全向天线增益模式与形成光束的自适应阵列天线增益图之间切换; 以及控制部,被配置为将光束引导到由全向天线增益模式覆盖的常规服务区域外的自适应阵列天线增益模式覆盖的扩展服务区域中的一个以及无线电中继站的服务区域中, 天线增益模式切换部分切换到自适应阵列天线增益模式。
    • 25. 发明授权
    • Propagation path estimation method and apparatus
    • 传播路径估计方法和装置
    • US07974350B2
    • 2011-07-05
    • US11153191
    • 2005-06-15
    • Makoto Yoshida
    • Makoto Yoshida
    • H04K1/10H04L27/28
    • H04L25/0218H04L25/022
    • In estimating propagation path in an OFDM receiver in an OFDM communication system, a CIR estimation unit estimates a group of impulse responses of a propagation path, a valid-impulse discriminator selects impulse responses (CIR), which are greater than a predetermined threshold value, from the impulse-response group, and a propagation path estimation unit generates a matrix expression using a CIR estimation vector that includes the selected CIRs as elements, a matrix S, which is decided based upon number N of points of an IFFT used in OFDM modulation and number Nc of subcarriers used in actual transmission, and a propagation-path response vector, obtains the propagation-path response vector by solving this matrix expression and estimating the propagation path.
    • 在OFDM通信系统中的OFDM接收机的估计传播路径中,CIR估计单元估计传播路径的一组脉冲响应,有效脉冲鉴别器选择大于预定阈值的脉冲响应(CIR) 并且传播路径估计单元使用包括所选择的CIR作为元素的CIR估计向量生成矩阵表达式,矩阵S基于在OFDM调制中使用的IFFT的点数N来确定 和实际发送中使用的子载波的数量Nc和传播路径响应向量,通过求解该矩阵表达式并估计传播路径来获得传播路径响应向量。