COFDM demodulator with an optimal FFT analysis window...

Details COFDM demodulator with an optimal FFT analysis window... COFDM demodulator with an optimal FFT analysis window...

2007-04-10

2007-04-10

Vo, Don N. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S326000

Reexamination Certificate

active

10349561

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.

REFERENCES:
patent: 6330293 (2001-12-01), Klank et al.
patent: 6449245 (2002-09-01), Ikeda et al.
patent: 6650617 (2003-11-01), Belotserkovsky et al.
patent: 6993083 (2006-01-01), Shirakata et al.
patent: 2004/0105512 (2004-06-01), Priotti
patent: 0 895 388 (1999-02-01), None
patent: WO 01/69878 (2001-09-01), None

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