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    • 5. 发明授权
    • Communication antenna device
    • 通讯天线装置
    • US08436782B2
    • 2013-05-07
    • US12864719
    • 2009-02-05
    • Tomonori SugiyamaNaohiro MatsushitaMasakazu KatoSadatoshi OishiJun YaginumaSunao Tsuchida
    • Tomonori SugiyamaNaohiro MatsushitaMasakazu KatoSadatoshi OishiJun YaginumaSunao Tsuchida
    • H01Q1/12
    • H01Q1/005H01Q1/1207H01Q1/27
    • A communication antenna device for use in radio communication between a moving body and an access point comprises an antenna main body for transmitting and receiving a signal, a base side member of the moving body for supporting the antenna main body, and a damping mechanism provided between the base side member and the antenna main body and suppressing high frequency vibration of the antenna main body that has an impact on the radio communication. The damping mechanism includes an elastic member for absorbing high frequency vibration that has an impact on the radio communication. The elastic member has such characteristics as absorbing high frequency vibration of the antenna main body that makes changes in amplitude or frequency of a transmission signal from the antenna main body to the extent of inducing a demodulation error when the transmission signal is received at an antenna of the other party.
    • 用于移动体和接入点之间的无线电通信的通信天线装置包括用于发送和接收信号的天线主体,用于支撑天线主体的移动体的基座侧构件和设置在天线主体之间的阻尼机构, 基座侧构件和天线主体,抑制对无线通信具有影响的天线主体的高频振动。 阻尼机构包括用于吸收对无线电通信具有影响的高频振动的弹性部件。 弹性部件具有如下特征:吸收天线主体的高频振动,使天线主体的发送信号的振幅或频率发生变化,当发送信号在天线的天线被接收时,引起解调错误 对方。
    • 8. 发明授权
    • Electronic shelf label system
    • 电子货架标签系统
    • US06762674B2
    • 2004-07-13
    • US09825006
    • 2001-04-03
    • Naohiro Matsushita
    • Naohiro Matsushita
    • G06F701
    • G06Q30/06
    • An electronic shelf label (ESL) transmits a negative response to a radio relay station by means of weak radio waves if it failed to normally receive price information. On the other hand, the ESL transmits no response if it failed to normally receive both ID information and price information. The radio relay station transmits to a radio communication base station ID information of the ESL which transmitted no response and ID information of the ESL which transmitted the negative response. The radio communication base station transfers the received ID information to an electronic shelf label (ESL) server. The ESL server re-transmits via the radio communication base station information to the ESL which transmitted no response and the ESL which transmitted the negative response.
    • 电子货架标签(ESL)如果无法正常接收价格信息,则通过弱无线电波向无线电中继站发送否定响应。 另一方面,如果无法正常接收ID信息和价格信息,则ESL不传送响应。 无线电中继站向发送无响应的ESL的无线通信基站ID信息和发送了否定响应的ESL的ID信息进行发送。 无线电通信基站将接收到的ID信息传送到电子货架标签(ESL)服务器。 ESL服务器通过无线电通信基站信息重传到不发送响应的ESL和发送负反应的ESL。