Speech recognition device, speech recognition method, and...

Details Speech recognition device, speech recognition method, and... Speech recognition device, speech recognition method, and...

2005-06-02

2010-10-12

Han, Qi (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

C704S231000, C704S235000, C704S236000, C704S239000, C704S255000

Reexamination Certificate

active

07813928

ABSTRACT:
A speech recognition device presenting whether a user's utterance is an unregistered word and whether the utterance should be repeated. The device includes a vocabulary storage unit (102) defining a vocabulary for speech recognition, and a speech recognition unit (101) checking the uttered speech against registered words. The device also includes a similarity calculation unit (103) calculating a similarity between the uttered speech and acoustic units, a judgment unit (104) judging, based on the check by the speech recognition unit (101) and the calculation performed by the similarity calculation unit (103), whether the uttered speech is a registered or unregistered word, an unregistered word unit (106) storing unregistered words, an unregistered word candidate search unit (105) searching the unregistered word unit (106) for unregistered word candidates, the, when the judgment unit (104) judges that the uttered speech is an unregistered word, and a display unit (107) displaying the result.

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