发明授权
- 专利标题： Filter circuit, wireless transmitter, and wireless receiver
- 专利标题（中）： 滤波电路，无线发射器和无线接收器
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申请号： US12404516申请日： 2009-03-16
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公开(公告)号： US08175552B2公开(公告)日： 2012-05-08
- 发明人: Gaku Takemura
- 申请人： Gaku Takemura
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Turocy & Watson, LLP
- 优先权： JP2008-131837 20080520
- 主分类号： H04B1/04
- IPC分类号： H04B1/04 ; H04B1/16
摘要：
A filter circuit is constructed of a passive mixer and a frequency response device. The passive mixer generates a frequency-converted signal by mixing an input signal transmitted through a transmission line and a local oscillation signal, and outputs the frequency-converted signal to the frequency response device, thus shifting a frequency characteristic of the frequency response device to high frequency by a local oscillation frequency of the local oscillation signal and applying the frequency characteristic shifted to high frequency on the input signal.
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