发明名称 RECEIVING DEVICE
摘要 PURPOSE:To secure reception of the faint electric wave in a good condition by securing connection with a piece of cable between the reception part and the reproduction part as well as securing the wireless connection between the reception part and the tuning control part. CONSTITUTION:The signals arriving at antenna 4 are amplified through booster 6 and then mixed with the signals given from local oscillator 8 to be amplified 9 after obtaining the intermediate frequency signal. The output is delivered to terminal 11 via isolator 10 which isolates the intermediate signal from the DC power supply signal, and the intermediate frequency signal is amplified 24 again and detected 25 to be delivered through terminal 26. The DC power supply given from power source 23 is isolated 10 via a piece of cable 22 and applied to reception part 1. Both the setting of antenna 4's derectivity and the oscillation frequency control of oscillator 8 are carried out via the optical digital signals L transmitted from antenna directivity controller 28 and tuning controller 27 respectively.
申请公布号 JPS54127612(A) 申请公布日期 1979.10.03
申请号 JP19780035626 申请日期 1978.03.27
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 KANE JIYOUJI;OKAMOTO MICHIO;NEZU SHIYUNICHI
分类号 H04B1/16;(IPC1-7):04B1/16 主分类号 H04B1/16
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