Content analyzer mixing inverse-direction-probability-weighted noise to input signal
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United States of America Patent
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Oct 27, 1998
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N/A
app pub date -
Jun 7, 1995
filing date -
Jun 7, 1995
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Expired
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Abstract
A speech recognition system combines content analysis of a signal with directional analysis of the signal to calculate probable contents of the signal and the probability that the contents are as calculated. Content analysis can be combined with independent source direction analysis, consisting of the probable direction of the source and the probability that the source is as determined, to refine the content analysis. The direction analysis can affect either the calculation of the probable contents of the signal or the calculation of the probability that the contents are as calculated. The improved information obtained by combining the content analysis with directional analysis can be used to improve subsequent content analyses or directional analyses.
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