COFDM demodulator with an optimal FFT analysis window positioning
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United States of America Patent
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Apr 10, 2007
Grant Date -
Jul 24, 2003
app pub date -
Jan 22, 2003
filing date -
Jan 22, 2002
priority date (Note) -
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Abstract
A COFDM demodulator or analogue comprising a fast Fourier transform circuit analyzing a received signal in a window corresponding to a symbol, each symbol conveying several phase- and/or amplitude-modulated carriers, some of which are signaling carriers, and a circuit for positioning said window. The circuit for positioning said window uses the non demodulated signaling carriers.
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