K-delta-1-sigma modulator

Details K-delta-1-sigma modulator K-delta-1-sigma modulator

2011-03-29

2011-03-29

Nguyen, Linh V (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C341S118000, C341S120000, C341S122000, C341S155000, C341S172000

Reexamination Certificate

active

07916054

ABSTRACT:
A K-Delta-1-Sigma modulator filters or integrates (Sigma) the difference (Delta) between K-feedback paths and an input signal. By using K-feedback paths the topology enables sample rates that are K times the clock frequency of any one feedback path. The sigma block can be implemented in a number of ways including an active or passive integrator or a filter with specific characteristics. When implemented as an integrator, the sigma block is common to all the feedback paths, so that the modulation noise is pushed to a portion of the spectrum where it can be reduced by filtering. The delta block can be implemented in a number of ways including analog adders or switched capacitors.

REFERENCES:
patent: 4439756 (1984-03-01), Shenoi
patent: 5030954 (1991-07-01), Ribner
patent: 5150120 (1992-09-01), Yunus
patent: 5274375 (1993-12-01), Thompson
patent: 5835044 (1998-11-01), Nishino
patent: 5936562 (1999-08-01), Brooks
patent: 5982313 (1999-11-01), Brooks
patent: 5982315 (1999-11-01), Bazarjani et al.
patent: 5986598 (1999-11-01), Mittel
patent: 6097325 (2000-08-01), Roza
patent: 6172631 (2001-01-01), Tsai
patent: 6188345 (2001-02-01), McDonald
patent: 6208279 (2001-03-01), Oprescu
patent: 6642873 (2003-11-01), Kuang
patent: 6744392 (2004-06-01), Melanson
patent: 6954159 (2005-10-01), Cooper et al.
patent: 7016421 (2006-03-01), Yap et al.
patent: 7196650 (2007-03-01), Hand et al.
patent: 7227491 (2007-06-01), Deerer
patent: 7253759 (2007-08-01), Kaplan
patent: 7253761 (2007-08-01), Hoyos et al.
patent: 7280066 (2007-10-01), Pernici et al.
patent: 7319420 (2008-01-01), Nakakita et al.
patent: 7561635 (2009-07-01), Norsworthy et al.
patent: 7564391 (2009-07-01), Das
patent: 7619550 (2009-11-01), Maeda et al.
patent: 2002/0118128 (2002-08-01), Siferd
patent: 2006/0227027 (2006-10-01), Doerrer et al.
patent: 2008/0062024 (2008-03-01), Maeda et al.
Engel Roza Poly-Phase Sigma-Delta Modulation IEEE Transactions on Circuits and Systems-II: Analog and Digital Signal Processing vol. 44 No. 11, Nov. 1997 p. 915-923.
Ian Galton and Henrik Jensen Oversampling Parallel Delta-Sigma Modulator A/D Conversion IEEE Transaction on Circuits and Systems-II: Analog and Digital Signal Processing vol. 43 No. 12 Dec. 1996 p. 801-810.
Ramin Khoini-Poorfard, Lim and Johns Time Interleaved Oversampling A/D Converters: Theory and Practice IEEE Transactions on Circuits and Systems-II: Analog and Digital Signal Processing, vol. 45 No. 8 Aug. 1997 p. 634-645.
Erik T. King, Eshraghi, Galton and Fiez A Nyquist-Rate Delta-Sigma A/D Converter IEEE Journal of Solid State Circuits, vol. 33, No. 1 Jan. 1998 p. 45-52.
Mucahit Kozak and Izzet Kale Novel Topologies for Timer-Interleaved Delta-Sigma Modulators IEEE Transactions on Circuits and Systems-II: Analog and Digital Signal Processing, vol. 47, No. 7 p. 639-654.
V.T. Nguyen, Loumeau and Naviner Advantages of High-Pass Delta-Sigma Modulators in Interleaved Delta-Sigma A?D Converter Proceedings of the 45th Mid-West Symposium on Circuits and Systems Aug. 4-7, 2002 Tulsa, OK p. I-136-I-139.
A. Eshraghi, and T.S. Fiez A Time Interleaved Parallel Delta-Sigma A/D Converter IEEE Transactions on Circuits and Systems-II Analog and Digital Signal Processing, vol. 50 No. 3 Mar. 2003 p. 118-129.
A. Eshraghi and T.S. Fiez A Comparative Analysis of Parallel Delta-Sigma ADC Architectures IEEE Transactions on Circuits and Systems-I Regular Papers vol. 51 No. 3 Mar. 2004 p. 450-458.

Affiliated with

Also associated with

Rating

K-delta-1-sigma modulator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with K-delta-1-sigma modulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and K-delta-1-sigma modulator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2644742