Invention Grant
- Patent Title: Demodulator, receiver, and demodulation method
- Patent Title (中): 解调器,接收器和解调方法
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Application No.: US11662606Application Date: 2006-05-10
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Publication No.: US07839942B2Publication Date: 2010-11-23
- Inventor: Yukihiro Kadota , Mitsuru Takeuchi
- Applicant: Yukihiro Kadota , Mitsuru Takeuchi
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2005-142278 20050516
- International Application: PCT/JP2006/309371 WO 20060510
- International Announcement: WO2006/123557 WO 20061123
- Main IPC: H04K1/10
- IPC: H04K1/10 ; H04L27/06 ; H04L27/08

Abstract:
In an OFDM receiver with a diversity configuration having a plurality of demodulation modules, to perform FFT window position recovery and clock recovery, the gain values calculated by the AGC units (16, 26) provided in the demodulation modules for adjusting the level of the received signal are supplied to a correlation combiner (35); the correlation combiner (35) multiplies the correlation signals supplied from the correlation detectors (17, 27) in the demodulation modules by coefficients calculated from the gain values, then adds the products to generate a combined correlation signal and supplies it to an FFT window position recovery unit (32) and a clock error detector (33). FFT window position recovery and clock recovery can thus be performed properly without depending on any one demodulation module.
Public/Granted literature
- US20090041167A1 Demodulator, Receiver, and Demodulation Method Public/Granted day:2009-02-12
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