Prediction parameter analysis apparatus and a prediction parameter analysis method
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United States of America Patent
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Jan 11, 2005
Grant Date -
Dec 5, 2002
app pub date -
May 16, 2002
filing date -
May 18, 2001
priority date (Note) -
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Abstract
A prediction parameter analysis apparatus comprises a windowing part which generates a short time input signal by subjecting an input signal or a signal derived from the input signal to windowing, a component removal part which removes an unnecessary component from the short time input signal to generate a modified short time input signal, an autocorrelation coefficient computation part which computes autocorrelation coefficients based on the modified short time input signal, and a prediction parameter computation part which computes prediction parameters based on the autocorrelation coefficients.
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