Adaptive high-order digital-to-analog conversion

Details Adaptive high-order digital-to-analog conversion Adaptive high-order digital-to-analog conversion

2008-02-06

2010-11-02

Young, Brian (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S143000

Reexamination Certificate

active

07825844

ABSTRACT:
Techniques for performing digital-to-analog conversion with first-order or higher-order hold using a simple analog circuit for signal reconstruction and employing feedback control techniques are described. In one design, a digital-to-analog conversion circuit includes an inverse model circuit, a feedback circuit, a zero-order hold (ZOH) circuit, and an analog circuit. The inverse model circuit processes a digital input signal and provides a first digital signal. The feedback circuit receives the first digital signal and an analog output signal from the analog circuit, performs low frequency noise filtering, and provides a second digital signal. The ZOH circuit converts the second digital signal from digital to analog with zero-order hold and provides an analog input signal for the analog circuit. The analog circuit operates on the analog input signal and provides the analog output signal. The analog circuit may be a simple circuit having one or more poles.

REFERENCES:
patent: 4970638 (1990-11-01), Yeh et al.
patent: 5532926 (1996-07-01), Dunn et al.
patent: 5608400 (1997-03-01), Pellon
patent: 6124816 (2000-09-01), Lee et al.
patent: 6894832 (2005-05-01), Aweya et al.
patent: 6940436 (2005-09-01), Hezar et al.
patent: 7194036 (2007-03-01), Melanson
patent: 7574327 (2009-08-01), de Roover et al.
patent: 0227944 (2002-04-01), None
patent: 07082237 (2007-07-01), None
International Search Report - PCT/US2009/033463, International Search Authority - European Patent Office - Nov. 5, 2009.
Written Opinion - PCT/US2009/033463, International Search Authority - European Patent Office - Nov. 5, 2009.

Affiliated with

Also associated with

Rating

Adaptive high-order digital-to-analog conversion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive high-order digital-to-analog conversion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive high-order digital-to-analog conversion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4213360