Invention Grant
- Patent Title: Filter circuit, wireless transmitter, and wireless receiver
- Patent Title (中): 滤波电路，无线发射器和无线接收器
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Application No.: US13428188Application Date: 2012-03-23
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Publication No.: US08412134B2Publication Date: 2013-04-02
- Inventor: Gaku Takemura
- Applicant: Gaku Takemura
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Turocy & Watson, LLP
- Priority: JP2008-131837 20080520
- Main IPC: H04B1/04
- IPC: H04B1/04 ; H04B1/18
Abstract:
According to one embodiment, a radio transmitter comprises a passive mixer that mixes the radio-frequency signal and a local oscillation signal, and outputs a mixed signal to the frequency response device, thereby shifting the 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 radio-frequency signal.
Public/Granted literature
- US20120178390A1 FILTER CIRCUIT, WIRELESS TRANSMITTER, AND WIRELESS RECEIVER Public/Granted day:2012-07-12
Information query
