发明名称 |
METHOD AND APPARATUS FOR VOICE-INTERACTIVE LANGUAGE INSTRUCTION |
摘要 |
Spoken-language instruction method and apparatus employ context-based speech recognition for instruction and evaluation. A finite state grammar set (113) corresponding to the range of word sequence patterns in the lesson is employed as a constraint on a hidden Markov model (HMM) search apparatus in an HMM speech recognizer (112). The invention includes a system with an interactive decision mechanism which employs at least three levels of error tolerance to simulate a natural level of patience in human-based interactive instruction. A linguistically-sensitive utterance endpoint detector is provided for judging termination of a spoken utterance to simulate human turn-taking in conversational speech. |
申请公布号 |
WO9420952(A1) |
申请公布日期 |
1994.09.15 |
申请号 |
WO1994US02542 |
申请日期 |
1994.03.08 |
申请人 |
SRI INTERNATIONAL |
发明人 |
RTISCHEV, DIMITRY;BERNSTEIN, JARED, C.;CHEN, GEORGE, T.;BUTZBERGER, JOHN, W. |
分类号 |
G09B19/04;G09B7/04;G09B19/06;G10L15/14;G10L15/183;G10L15/193;G10L15/22;(IPC1-7):G10L9/00 |
主分类号 |
G09B19/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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