Extended range delta-sigma modulator and delta-sigma power...

Details Extended range delta-sigma modulator and delta-sigma power... Extended range delta-sigma modulator and delta-sigma power...

2007-01-10

2008-09-02

Nguyen, Khai M (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C341S144000, C341S155000

Reexamination Certificate

active

07420493

ABSTRACT:
Devices, systems, and methods for providing delta-sigma modulation in conjunction with analog-to-digital or digital-to-analog signal conversion are disclosed. The delta-sigma modulator and delta-sigma converter include dynamically-scalable coefficients, which, at relatively low signal amplitudes, allow the delta-sigma modulator and delta-sigma converter to modulate the signals using a first noise transfer function and, at relatively greater signal amplitudes, allow the delta-sigma modulator and delta-sigma converter to modulate the signals using a second noise transfer function.

REFERENCES:
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patent: 5598158 (1997-01-01), Linz
patent: 5818374 (1998-10-01), Tan
patent: 6400297 (2002-06-01), Tucker
patent: 6621435 (2003-09-01), Cusinato et al.
patent: 6940438 (2005-09-01), Koe et al.
patent: 7084797 (2006-08-01), Yokoyama et al.
patent: 7193546 (2007-03-01), Melanson
patent: 7215270 (2007-05-01), Kozak et al.
patent: 2006/0164272 (2006-07-01), Philips et al.

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