Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate
2005-07-05
2005-07-05
Tsai, Carol S. W. (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Electrical signal parameter measurement system
C702S199000, C381S094100
Reexamination Certificate
active
06915224
ABSTRACT:
In a method of spectrum analysis, a sample signal, which is obtained by sampling an original signal at an original sampling rate within a sampling period, is transformed into a spectrum to be measured according to a frequency range scale. An optimum graduation interval of the frequency range scale is determined in accordance with frequency and amplitude parameters of the spectrum. An updated sampling rate is determined by multiplying the original sampling rate by the optimum graduation interval. The original signal is re-sampled at the updated sampling rate within the sampling period so as to obtain an updated sample signal. An optimum sample signal is obtained by multiplying the updated sample signal by a scale shift function that is based on the optimum graduation interval and the frequency and amplitude of the spectrum. Finally, the optimum sample signal is transformed into an optimized spectrum.
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Townsend and Townsend / and Crew LLP
Tsai Carol S. W.
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