Invention Grant
- Patent Title: Radio receiver and radio reception method
- Patent Title (中): 无线电接收机和无线电接收方法
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Application No.: US12402791Application Date: 2009-03-12
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Publication No.: US08060046B2Publication Date: 2011-11-15
- Inventor: Takamichi Kuga , Yasuhisa Yao
- Applicant: Takamichi Kuga , Yasuhisa Yao
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2008-071319 20080319
- Main IPC: H04B1/06
- IPC: H04B1/06 ; H04B7/00

Abstract:
The radio receiver includes: a mixer configured to convert a received signal to an IF signal using a local oscillation signal; an IF processing section configured to limit the band of the IF signal; a detection section configured to demodulate the band-limited IF signal; a frequency control section configured to output a frequency control signal corresponding to a desired signal; and a local oscillation section configured to generate the local oscillation signal having a frequency corresponding to the desired signal according to the frequency control signal. The frequency control section outputs as the frequency control signal to change the frequency of the local oscillation signal so that the difference from the frequency corresponding to the desired signal is not more than the frequency of the IF signal, and determines one of the set values with which the corresponding image signal strength is lowest as the frequency control signal.
Public/Granted literature
- US20090239492A1 RADIO RECEIVER AND RADIO RECEPTION METHOD Public/Granted day:2009-09-24
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