Data processing: speech signal processing – linguistics – language – Speech signal processing – Recognition
Reexamination Certificate
2006-11-28
2006-11-28
McFadden, Susan (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Recognition
Reexamination Certificate
active
07143034
ABSTRACT:
Provided are a dynamic time warping device using speech recognition software, and a speech recognition apparatus using the same. The dynamic time warping device includes memory units for processing characterization vectors of a test pattern and a predetermined reference pattern using a FIFO queue, and a plurality of processing elements serially connected to each other, the plurality of processing elements multiplying a predetermined weight by a difference between the characterization vectors of the test and reference patterns, which are obtained by shifting them in the opposite directions, adding the multiplication result to matching cost values of adjacent nodes, and comparing the addition results to detect the smallest matching cost value. Accordingly, fast speech recognition can be realized by embedding speech recognition software using a dynamic time warping algorithm into hardware. Also, it is possible to increase a recognition rate of speech by adjusting weight according to a node to be compared, and provide a dynamic time warping device that can be mass-produced as application-specification integrated circuits (ASICs). Further, a compact speech recognition apparatus using the dynamic time warping device can be provided without requiring a computer to drive software for speech recognition.
REFERENCES:
patent: 6304844 (2001-10-01), Pan et al.
patent: 6983246 (2006-01-01), Kepuska et al.
Jeong Hong
Kim Yong
McFadden Susan
Postech Foundation
Rothwell Figg Ernst & Manbeck P.C.
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