Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion
Reexamination Certificate
2006-11-21
2006-11-21
Mai, Lam T. (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Digital to analog conversion
C341S143000
Reexamination Certificate
active
07138935
ABSTRACT:
The present invention relates to digital-to-analog conversion. In particular, it has application to conversion of pulse code modulated signals, such as used in CDs and DVDs, to a pulse width modulated or analog signal.
REFERENCES:
patent: 5337338 (1994-08-01), Sutton et al.
patent: 5559467 (1996-09-01), Smedley
patent: 5903871 (1999-05-01), Terui et al.
patent: 5974089 (1999-10-01), Tripathi et al.
patent: 6137429 (2000-10-01), Chan et al.
patent: 6208279 (2001-03-01), Oprescu
patent: 6344811 (2002-02-01), Melanson
patent: 6466087 (2002-10-01), Ruha
patent: 6504427 (2003-01-01), Midya et al.
patent: 6594309 (2003-07-01), Botti et al.
patent: 6794930 (2004-09-01), Nurminen
patent: 6795004 (2004-09-01), Masuda et al.
patent: 2004/0165661 (2004-08-01), Braun
Jorge Varona, “Power Digital-to-Analog Conversion Using Sigma-Delta and Pulse Width Modulations,” ECE1317 Analog Electronics II, ECE University of Toronto, pp. 1-14, 2001, no month.
Erik Bresch and Wayne T. Padgett, “TMS320C67-Based Design of a Digital Audio Power Amplifier Introducing Novel Feedback Strategy,” Rose-Helman Institute of Technology, Electrical and Computer Engineering Department, pp. 1-16, 1999, no month.
K. P. Sozanski, R. Strzelecki and Z. Fedyczak, “Digital Control Circuit for Class-D Audio Power Amplifier,” Power Electronics Specialists Conference, PESC 2001 IEEE 32nd Annual, vol. 2, pp. 1245-1250, 2001, no month.
Morten Johansen and Karsten Nielsen, “A Review and Comparison of Digital PWM Methods for Digital Pulse Modulation Amplifier (PMA) Systems,” 107th Convention of Audio Engineering Society, Sep. 24-27, 1999, New York, New York.
Thomas Taul, Karsten Nielsen and Michael A.E. Andersen, “Comparing Nonlinear with Linear Control Methods for Error Correction in Switching Audio Amplifier Output Stages,” 104th Convention of Audio Engineering Society, May 16-19, 1998, Amsterdam.
Karsten Nielsen, “MECC—A Novel Control Method for High End Switching Audio Power Amplification,” 105th Convention of Audio Engineering Society, Sep. 26-29, 1998, San Francisco, California.
Crilles Bak Rasmussen, “Hybrid Digital-Analog Feedback Audio Amplifiers,” 2004 Dissertation, in cooperation with Bang & Olufsen ICEpower A/A, Lyngby 2004, Eksamensprojekt, NR. IMM-Thesis-2004-68, no month.
M. O. J. Hawksford, “Time-Quantized Frequency Modulation, Time-Domain Dither, Dispersive Codes, and Parametically Controlled Noise Shaping in SDM,” J. Audio Eng. Soc., vol. 52, No. 6, pp. 587-617, Jun. 2004.
D. Weiler, P.A. Nielsen, D. Hammerschmidt, O. Machul and B.J. Hosticka, “Single Bit Sigma-Delta Modulator with Nonlinear Quantization for μ-Law Coding,” 23rd European Sold-State Circuits Conference, Southhampton, United Kingdom, Sep. 16-18, 1997.
D. Akselrod, S. Greenberg, S. Hava and V. Koifman, “Noise-Shaped Dynamic Element Matching Architecture for Multibit Delta-Sigma Converters,” no month no year.
E. Bach, “Multibit Oversampling D/A Converters Using Dynamic Element Matching Methods,” Siemens AG, Semiconductors Group, Mar. 3, 1999.
E. Fogelman, “A Dynamic Element Matching Technique for Reduced-Distortion Multibit Quantization in Delta-Sigma ADCs,” IEEE Transactions on Circuits and Systems-II: Analog and Digital Signal Processing, vol. 48, No. 2, Feb. 2001.
Y. Geerts and M. Steyaert, “Guidelines for Implementation of CMOS Multibit Oversampling Modulations,” K.U. Leuven, ESAT-MICAS, Jan. 1999.
H. Jensen, “A Low-Complexity Dynamic Element Matching DAC for Direct Digital Synthesis,” IEEE Transactions on Circuits and Systems-II: Signal Processing, vol. 45, No. 1, Jan. 1998.
Damphousse Simon
Forman Dustin D.
Mallinson A. Martin
Beffel, Jr. Ernest J.
ESS Technology, Inc.
Haynes Beffel & Wolfeld LLP
Mai Lam T.
LandOfFree
Low noise digital to signal interval converter with audio... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low noise digital to signal interval converter with audio..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low noise digital to signal interval converter with audio... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3643783