Speech recognition system which avoids ambiguity when matching frequency spectra by employing an additional verbal feature
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United States of America Patent
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-
Nov 21, 1989
Grant Date -
N/A
app pub date -
Aug 11, 1987
filing date -
Aug 21, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a speech recognition system using normalized spectrum matching, a second feature pattern is calculated and compared with reference patterns. The similarity obtained as a result of the comparison is used to determine overall similarity, from which the recognition is made. The second feature pattern can be a spectrum variation pattern, a level decrease pattern, or a spectrum relative value pattern.
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Family
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Cited Art Landscape
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