Coded data generation or conversion – Analog to or from digital conversion – Differential encoder and/or decoder
Reexamination Certificate
2007-12-04
2007-12-04
JeanPierre, Peguy (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Differential encoder and/or decoder
C341S144000
Reexamination Certificate
active
11492712
ABSTRACT:
A linearization circuit with digital element matching for digital-to-analog converters includes an n-bit delta-sigma modulator that receives an input signal and provides a modulated n-bit signal. An encoder receives the modulated n-bit signal and provides an encoded signal (X) having 2nsignal components (x0,x1, . . . ,x2n−1). 2ndigital-to-analog converter elements each receive an associated one of the 2nsignal components (x0,x1, . . . ,x2n−1) and provide an associated analog signal component (a0,a1, . . . ,a2n−1) indicative thereof. A summer receives and sums the analog signal components to provide an analog output signal. A weighting factor supply device provides a first weighting factor (W+) for activated ones of the digital-to-analog converter elements and a second weighting factor (W−) for non-activated ones of the digital-to-analog converter elements, where the encoder is responsive to the first and second weighting factors.
REFERENCES:
patent: 5404142 (1995-04-01), Adams et al.
patent: 5684482 (1997-11-01), Galton
patent: 6292125 (2001-09-01), Conroy
patent: 6384761 (2002-05-01), Melanson
patent: 6583742 (2003-06-01), Hossack
Welz et al., “Simplified Logic for First-Order and Second-Order Mismatch-Shaping Digital-to-Analog Converters,” IEEE Transactions on Circuits and Systems-11: Analog and Digital Signal Processing, vol. 48, No. 11, pp. 1014-1027, Nov. 2001.
Luecking Dieter
Noeske Carsten
Jean-Pierre Peguy
Micronas GmbH
O'Shea Getz & Kosakowski P.C.
LandOfFree
Linearization circuit with digital element matching for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Linearization circuit with digital element matching for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linearization circuit with digital element matching for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3859073