发明名称 |
METHOD AND APPARATUS FOR AUTOMATION OF DIRECTORY ASSISTANCE USING SPEECH RECOGNITION |
摘要 |
In a telecommunications system, automatic directory assistance uses a voi ce processing unit comprising a lexicon of lexemes and data representing a predetermined relationship between each lexeme and calling numbers in a locality served by the automated directory assistance apparatus. The voice processing unit issues messages to a caller making a directory assistance call to prompt the caller to utter a required one of said lexemes. The unit detects the calling number originating a directory assistance call and, responsive to the calling number and the relationship data computes a probability index representing the likelihood of a lexeme being the subject of the directory assistance call. The unit employs a speech recognizer to recognize, on the basis of the acoustics of the caller's utterance and the probability index, a lexeme corresponding to that uttered by the caller.
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申请公布号 |
CA2119072(A1) |
申请公布日期 |
1994.09.16 |
申请号 |
CA19942119072 |
申请日期 |
1994.03.15 |
申请人 |
LENNIG, MATTHEW;SHARP, ROBERT D.;BIELBY, GREGORY J. |
发明人 |
LENNIG, MATTHEW;SHARP, ROBERT D.;BIELBY, GREGORY J. |
分类号 |
H04M3/42;(IPC1-7):H04M3/42 |
主分类号 |
H04M3/42 |
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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