发明名称 Satellite broadcast receiving device having two local oscillation circuits and reduced spurious signal
摘要 A first printed circuit board is attached to an upper surface of a chassis, and a second printed circuit board is attached to a lower surface of the chassis. The chassis has a thickness of a certain degree, which can reduce a mutual effect of first and second local oscillators, and can suppress occurrence of a spurious signal. Thus, a satellite broadcast receiving device can be provided in which the mutual effect of two local oscillating circuits can be reduced and thus occurrence of a spurious signal is suppressed.
申请公布号 US6950644(B2) 申请公布日期 2005.09.27
申请号 US20020078710 申请日期 2002.02.21
申请人 SHARP KABUSHIKI KAISHA 发明人 NISHINA MOTOHISA
分类号 H04N7/20;H04B1/08;H04B15/06;H05K1/14;(IPC1-7):H04B1/10 主分类号 H04N7/20
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