Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate
2007-08-03
2010-06-29
Charioui, Mohamed (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Electrical signal parameter measurement system
Reexamination Certificate
active
07747401
ABSTRACT:
Embodiments of the present invention provide techniques for decomposing a signal using a sawtooth, or triangle wave, transform. Specific embodiments transform an input signal into a piecewise-linear sawtooth or triangle wave function, and construct upper and lower envelopes for the input signal in sawtooth space. A component function for the input signal (e.g., an Intrinsic Mode Function (IMF)) is then generated based on the sawtooth or triangle wave function and the upper and lower envelopes. In various embodiments, the results generated in sawtooth space are reversely transformed into the original data space of the input signal. In this manner, an input signal may be decomposed into one or more component functions without the time-consuming and relatively unpredictable sifting process of the Empirical Mode Decomposition (EMD) method.
REFERENCES:
patent: 4194202 (1980-03-01), Doyle
patent: 7054792 (2006-05-01), Frei et al.
patent: 7120563 (2006-10-01), Bechhoefer et al.
Huang et al., “The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis,”Proc. R. Soc. Lond. A. (1998) 454, pp. 903-995 (93 pages).
Huang, “HHT Tutorial, Nonstationary and Nonlinear Time Series Analysis using the Hilbert-Huang Transform” Presentation, Jul. 21, 2004, (2004) (64 pages).
Johansson, “The Hilbert Transform,” (33 pages).
Blakely, “A Fast Empirical Mode Decomposition Technique for Nonstationary Nonlinear Time Series,”Preprint Submitted to Elsevier Science, Oct. 3, 2005 (2005) (14 pages).
“Hilbert-Huang Transform Technologies,” available at http:www.fuentek.com/technologies/hht.htm, printed Aug. 22, 2007 (15 pages).
“Intro—D Programming Language 2.0—Digital Mars,” available at http:www.digitalmars.com/d/, printed Aug. 22, 2007 (2 pages).
Charioui Mohamed
Oracle International Corporation
Townsend and Townsend / and Crew LLP
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