Device and method for the digital demodulation of a signal...

Details Device and method for the digital demodulation of a signal... Device and method for the digital demodulation of a signal...

2007-02-27

2007-02-27

Kim, Kevin (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S324000, C375S350000, C455S072000, C455S114200, C708S300000, C708S316000

Reexamination Certificate

active

10157156

ABSTRACT:
The device (10) for digital demodulation comprises a polyphase filter (14) comprising a set of N distinct elementary digital filters and means (16) of selection, for each block of an elementary digital filter (Hi).It comprises a decimating stage (18) for selecting samples in each block on completion of the digital filtering and means (20) for determining samples to be selected comprising means (28) for computing an error signal for each filtered block and means (31) for evaluating the error signal suitable for determining the samples to be selected in the relevant block. That the means (16) of selection of an elementary digital filter (Hi) comprise means (28) for calculating an error signal. The means (28) for calculating an error signal are common to the means (16) of selection of the elementary digital filter (Hi) to be implemented and to the means (20) for determining samples to be selected.Application to a mobile telephone or base station.

REFERENCES:
patent: 5323391 (1994-06-01), Harrison
patent: 5982832 (1999-11-01), Ko
patent: 6134268 (2000-10-01), McCoy
patent: 6141378 (2000-10-01), D'Oreye de Lantremange
patent: 43 15 806 (1994-11-01), None
patent: 0 627 830 (1994-12-01), None
patent: 0 809 376 (1997-11-01), None
Pending, U.S. Appl. No. 10/157,157, filed May 30, 2002.
Pending, U.S. Appl. No. 10/157,156, filed May 30, 2002.

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