Coded data generation or conversion – Converter compensation
Reexamination Certificate
2006-11-28
2006-11-28
Mai, Lam T. (Department: 2819)
Coded data generation or conversion
Converter compensation
C341S155000
Reexamination Certificate
active
07142137
ABSTRACT:
A method of converting an input analog signal to a compensated digital signal comprises converting the input analog signal to an uncompensated digital signal, inputting the uncompensated digital signal to a distortion model, generating a modeled distortion signal based on the uncompensated digital signal, and subtracting the modeled distortion signal from the uncompensated digital signal to generate the compensated digital signal. A distortion compensating analog to digital converter (ADC) comprises an uncompensated ADC configured to convert an input analog signal to an uncompensated digital signal, and a compensation module coupled to the uncompensated ADC, configured to receive the uncompensated digital signal, generate a modeled distortion signal based on the uncompensated digital signal and subtract the modeled distortion signal from the uncompensated digital signal to generate the compensated digital signal.
REFERENCES:
patent: 4435823 (1984-03-01), Davis et al.
patent: 4843583 (1989-06-01), White et al.
patent: 5182558 (1993-01-01), Mayo
patent: 5302909 (1994-04-01), Kettenis et al.
patent: 5532642 (1996-07-01), Takai
patent: 5535246 (1996-07-01), Beech
patent: 5685317 (1997-11-01), Sjostrom
patent: 5786728 (1998-07-01), Alinikula
patent: 6181754 (2001-01-01), Chen
patent: 6351227 (2002-02-01), Rudberg
patent: 6351740 (2002-02-01), Rabinowitz
patent: 6388518 (2002-05-01), Miyatani
patent: 6512417 (2003-01-01), Booth et al.
patent: 6538592 (2003-03-01), Yang et al.
patent: 6621340 (2003-09-01), Perthold et al.
patent: 6677820 (2004-01-01), Miyatani
patent: 6677821 (2004-01-01), Kusunoki et al.
patent: 6856191 (2005-02-01), Bartuni
patent: 6885323 (2005-04-01), Batruni
U.S. Appl. No. 11/091,014, filed Mar. 24, 2005, Batruni.
U.S. Appl. No. 11/061,850, filed Feb. 18, 2005, Batruni.
Frank, Walter A., “An Efficient Approximation to the Quadratic Volterra Filter and Its Application I Realtime Loudspeaker Linearization”, Universitat der Bundeswehr Munchen, D85577 Neubiberg Germany, “no month” “no year”.
Frank, Walter A., “On the Equalization of Nonlinear Systems”, Universitat der Bundeswehr Munchen, Neubiberg, Germany, “no month” “no year”.
Giannakis, Georgios B., “Blind Franctionally Spaced Equalization of Noisy FIR Channels: Direct and Adaptive Solutions”, IEEE Transactions on Signal Processing, vol. 45, No. 9, Sep. 1997.
Griffith, David W., Jr. et al, “Partially Decoupled Volterra Filters: Formulation and LMS Adaptation” Dept. of Electrical Engineering, University of Delaware, Newark, Delaware, “no month” “no year”.
Schulz-Mirbach, Hanns, “Nonlinear Model-Based Analysis and Description of Images for Multimedia Applications”, Internal Report Jul. 1996, TU Hamburg-Harburg, Technische Informatik I, Oct. 1996.
Mai Lam T.
Optichron, Inc.
Van Pelt & Yi & James LLP
LandOfFree
Reduced complexity nonlinear filters for analog-to-digital... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reduced complexity nonlinear filters for analog-to-digital..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reduced complexity nonlinear filters for analog-to-digital... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3665465