Coded data generation or conversion – Analog to or from digital conversion – Nonlinear
Reexamination Certificate
2007-01-09
2007-01-09
Mai, Lam T. (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Nonlinear
C341S120000
Reexamination Certificate
active
11258237
ABSTRACT:
A calibration system for calibrating a linearity corrector using the sum of filter products is proved, along with a method of calibrating the linearity corrector. The calibration system includes a first and second signal generator for introducing test signals into a signal processing system, such as an ADC. An acquisition memory and processor are provided for acquiring and analyzing the output of the signal processing system and then programming the filter coefficients into the linearity corrector. The method of calibration analyzes acquired intermodulation and harmonic components from the signal processing system and then finds the amplitude and phase response for the filters. The amplitude and phase response is then used to determine a set of filter coefficients.
REFERENCES:
patent: 5594612 (1997-01-01), Henrion
patent: 6384757 (2002-05-01), Kosonen
patent: 6639537 (2003-10-01), Raz
patent: 6897794 (2005-05-01), Kuyel et al.
Taiho Koh et al, “Second-Order Volterra Filtering and Its Application to Nonlinear System Identification”, IEEE Transactions vol. ASSP-33 No. 6, Dec. 1985.
Zhang Jia-Shu et al “A Reduced Parameter Second-Order Volterra Filter with Application to Nonlinear Adaptive Prediction of Chaotic Time Series” Chin. Phys Soc vol. 50 Jul. '2001.
Walter Frank, “Compensation of Linear & Nonlinear Sensor Distortions by Digital Post Processing”, (Sensor 95) pp. 889-892, “No Month” “No Year”.
Walter Frank et al, “Realtime Loudspeaker Linearization”, IEEE Winter Workshop 1993, “No Month” No Year .
Konstantina Karagianni et al, “Efficient Third-Order Volterra Filter Computation in the Time Domain”, IEEE U.S., Nov. 2003.
Mai Lam T.
Rabdau Matthew D.
Tektronix Inc.
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