Data processing: speech signal processing – linguistics – language – Speech signal processing – Recognition
Reexamination Certificate
2007-06-11
2008-08-05
Knepper, David D (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Recognition
C704S254000
Reexamination Certificate
active
07409341
ABSTRACT:
A recognizing target vocabulary comparing unit calculates a compared likelihood of recognizing target vocabulary, i.e., a compared likelihood of registered vocabulary, by using the time series of the amount of characteristics of an input speech. An environment adapted noise model comparing unit compares the time series of the amount of characteristics with one recognizing standard pattern or with two or more combined recognizing standard patterns one-by-one to obtain a likelihood that respective environment adaptive noise models coincide with the time series of the amount of characteristics. A rejection determining unit determines whether or not the input signal is noise by comparing the likelihood obtained by the recognizing target vocabulary comparing step with the likelihood obtained by the environment adaptive noise model comparing step. A noise model adapting unit calculates a first likelihood by comparing the time series of the amount of characteristics with recognizing standard patterns and orders the recognizing standard patterns in accordance with the size of the first likelihood. Thus, the environment adaptive noise model matches to a real environment and the rejection determination can be performed for a noise input with high accuracy.
REFERENCES:
patent: 4630304 (1986-12-01), Borth et al.
patent: 4715065 (1987-12-01), Parker
patent: 4720802 (1988-01-01), Damoulakis et al.
patent: 4912767 (1990-03-01), Chang
patent: 5134658 (1992-07-01), Chen et al.
patent: 5459814 (1995-10-01), Gupta et al.
patent: 5649055 (1997-07-01), Gupta et al.
patent: 5689615 (1997-11-01), Benyassine et al.
patent: 5708754 (1998-01-01), Wynn
patent: 5757937 (1998-05-01), Itoh et al.
patent: 5924067 (1999-07-01), Kosaka et al.
patent: 7260527 (2007-08-01), Koshiba
patent: 2005/0027527 (2005-02-01), Junkawitsch et al.
Kabushiki Kaisha Toshiba
Knepper David D
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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