Method for designing a noise shaper with a single loop...

Details Method for designing a noise shaper with a single loop... Method for designing a noise shaper with a single loop...

2006-03-07

2006-03-07

Jeanpierre, Peguy (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C341S155000

Reexamination Certificate

active

07009540

ABSTRACT:
A method for designing a noise shaper with a single loop distributed feedback delta-sigma modulator includes following steps: (a) determining a delta-sigma modulator comprising a plurality of parameters according to an order of the noise shaper; (b) deriving a noise transfer function comprising a plurality of coefficients corresponding to the parameters of the delta-sigma modulator according to the delta-sigma modulator; (c) determining a high-pass filter corresponding to the delta-sigma modulator according to a default requirement; (d) solving the coefficients of the noise transfer function according to the high-pass filter; and (e) feeding the solved coefficients in step (d) into the parameters of the delta-sigma modulator for completing the noise shaper.

REFERENCES:
patent: 5150120 (1992-09-01), Yunus
patent: 6101864 (2000-08-01), Abrams et al.
patent: 6169507 (2001-01-01), Bianchessi et al.
patent: 6819275 (2004-11-01), Reefman et al.
patent: 2005/0052300 (2005-03-01), Ranganathan

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