发明名称 |
Keyword recognition system and method using template concantenation model |
摘要 |
Similarity is measured between incoming speech and a plurality of candidate strings of filler and keyword templates to test the hypothesis of a keyword being present against the hypothesis of a keyword not being present in the input speech. As alternatives to a candidate string containing a keyword template, other candidate strings are assembled with filler templates of short speech sounds that may be similar to a keyword. A keyword is "recognized" only when an optimal candidate string containing the corresponding keyword template is determined to match the input speech more closely than all other candidate strings. A concatenation penalty is added to the partial string score each time a new template is added to a candidate string, in order to bias the score in favor of a candidate string containing a longer, keyword template. |
申请公布号 |
US5218668(A) |
申请公布日期 |
1993.06.08 |
申请号 |
US19920961014 |
申请日期 |
1992.10.14 |
申请人 |
ITT CORPORATION |
发明人 |
HIGGINS, ALAN L.;WOHLFORD, ROBERT E.;BAHLER, LAWRENCE G. |
分类号 |
G10L11/02;G10L15/00 |
主分类号 |
G10L11/02 |
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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