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    • 9. 发明授权
    • Antenna system
    • 天线系统
    • US07701392B2
    • 2010-04-20
    • US12104841
    • 2008-04-17
    • Nobuo NakajimaKoichi GyodaTakehiro OnomatsuHideto YoshimuraEiji Shibuya
    • Nobuo NakajimaKoichi GyodaTakehiro OnomatsuHideto YoshimuraEiji Shibuya
    • H01Q3/00H04N7/20
    • H01Q3/01
    • Disclosed is an antenna system, including: an antenna which can switch directivity thereof when receiving an analog television broadcasting signal; a switching section to switch the directivity of the antenna; a measurement section to measure radio wave quality of the analog television broadcasting signal received by the antenna by analyzing the analog television broadcasting signal when the directivity of the antenna is switched by the switching section; a storage section to store data of radio wave quality in different directions measured by the measurement section for each channel; and a control section to control the switching section to switch the directivity of the antenna to one direction having a highest radio wave quality among the different directions corresponding to a desired channel when the desired channel is designated.
    • 公开了一种天线系统,包括:天线,当接收到模拟电视广播信号时,可以切换其方向性; 切换部,切换天线的方向性; 测量部分,用于当通过切换部分切换天线的方向性时,通过分析模拟电视广播信号来测量由天线接收的模拟电视广播信号的无线电波质量; 存储部,其针对每个通道,由所述测量部测量的不同方向存储无线电波质量的数据; 以及控制部分,用于当指定期望的频道时,控制切换部分将天线的方向性切换到与期望频道对应的不同方向中具有最高无线电波质量的一个方向。