Data processing: measuring – calibrating – or testing – Measurement system – Measured signal processing
Reexamination Certificate
2005-07-12
2005-07-12
Nghiem, Michael (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Measured signal processing
Reexamination Certificate
active
06917903
ABSTRACT:
A method removes a pseudo signal from the main signal. An integrated original signal is derived by integrating the original signal with respect to time, and then, is decomposed into the sum of one Approximation and at least one Detail by wavelet transformation. The wavelet transformation is executed with deepening the level number until the level number reaches to the threshold level number at which the ratio of the energy of the one Approximation to the energy of the original signal has a predetermined relationship with a predetermined threshold value. The Approximation at the threshold level number as a pseudo signal component is approximated to zero, and the Approximation and Detail up to said threshold level number are reconstituted by wavelet inverse transformation.
REFERENCES:
patent: 6249749 (2001-06-01), Tran et al.
patent: 2004/0010203 (2004-01-01), Bibian et al.
patent: 06-052270 (1994-07-01), None
patent: 06-052270 (1994-07-01), None
Salvaging Pyrotechnic Data with Minor Overloads and Offsets, Smallwood, David O. et al., Sandia National Labs., May/Jun. 1999, 27-35.
Shi Qinzhong
Uchikawa Hideaki
Jacobson & Holman PLLC
Japan Aerospace Exploration Agency
Nghiem Michael
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