05719921 is referenced by 170 patents and cites 41 patents.

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.

Title
Methods and apparatus for activating telephone services in response to speech
Application Number
8/609029
Publication Number
5719921
Application Date
February 29, 1996
Publication Date
February 17, 1998
Inventor
Jayant M Naik
Stamford
CT, US
Vijay R Raman
Greenwich
CT, US
David M Lubensky
New Milford
CT, US
Ayman O Asadi
Aliso Viejo
CA, US
George J Vysotsky
Riverdale
NY, US
Agent
Michaelson & Wallace
Agent
Peter L Michaelson
Michael P Straub
Assignee
NYNEX Science & Technology
NY, US
IPC
H04M 3/42
H04M 1/66
H04M 1/30
G10L 9/08
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