Telephonic communications – Audio message storage – retrieval – or synthesis – Multilingual system or operation
Patent
1996-02-29
1998-02-17
Hong, Harry S.
Telephonic communications
Audio message storage, retrieval, or synthesis
Multilingual system or operation
379189, 379199, 379216, 379361, 381 42, 395 255, 395 284, G10L 908, H04M 130, H04M 166, H04M 342
Patent
active
057199213
ABSTRACT:
Methods and apparatus for activating telephone services in response to speech are described. A directory including names is maintained for each customer. A speaker dependent speech template and a telephone number for each name, is maintained as part of each customer's directory. Speaker independent speech templates are used for recognizing commands. The present invention has the advantage of permitting a customer to place a call by speaking a person's name which serves as a destination identifier without having to speak an additional command or steering word to place the call. This is achieved by treating the receipt of a spoken name in the absence of a command as an implicit command to place a call. Explicit speaker independent commands are used to invoke features or services other than call placement. Speaker independent and speaker dependent speech recognition are performed on a customer's speech in parallel. An arbiter is used to decide which function or service should be performed when an apparent conflict arises as a result of both the speaker dependent and speaker independent speech recognition step outputs. Stochastic grammars, word spotting and/or out-of-vocabulary rejection are used as part of the speech recognition process to provide a user friendly interface which permits the use of spontaneous speech. Voice verification is performed on a selective basis where security is of concern.
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Asadi Ayman O.
Lubensky David M.
Naik Jayant M.
Raman Vijay R.
Vysotsky George J.
Hong Harry S.
Michaelson Peter L.
Nynex Science & Technology
Straub Michael P.
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