Telephonic communications – Audio message storage – retrieval – or synthesis
Patent
1994-02-08
1995-12-26
Hofsass, Jeffery A.
Telephonic communications
Audio message storage, retrieval, or synthesis
379213, 395 261, 395 284, H04M 364, G10L 906
Patent
active
054794889
ABSTRACT:
In a telecommunications system, automatic directory assistance uses a voice 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.
REFERENCES:
patent: 4696039 (1987-09-01), Doddington
patent: 4790003 (1988-12-01), Kepley et al.
patent: 4797910 (1989-01-01), Daudelin
patent: 4831550 (1989-05-01), Katz
patent: 4881261 (1989-11-01), Oliphant et al.
patent: 4896345 (1990-01-01), Thorne
patent: 4979206 (1990-12-01), Padden et al.
patent: 5014303 (1991-05-01), Velius
patent: 5018201 (1991-05-01), Sugawara
patent: 5163081 (1992-11-01), Wycherley et al.
patent: 5181237 (1993-01-01), Dowden et al.
patent: 5267304 (1993-11-01), Slusky
patent: 5335266 (1994-08-01), Richardson, Jr. et al.
patent: 5339352 (1994-08-01), Armstrong et al.
patent: 5357596 (1994-10-01), Takebayashi et al.
A*-Admissible Heuristics for Rapid Lexical Access, P. Kenny, R. Hollan, V. Gupta, M. Lennig, P. Mermelstein and D. O'Shaughnessy INRS-Telecommunications, Montreal, Quebec, Canada. 1991 IEEE.
Multiple-Level Evaluation of Speech Recognition Systems, John F. Pitelli, David Lubensky, Benjamin Chigier, and Hong C. Leung; Speech Technology Group Artificial Intelligence Laboratory, Tu.sPM. 1.3, pp. 165-168.
Characterization of Directory Assistance Operator-Customer Dialogues in AGT Limited S. M. (Raj) Ulagaraj AGT Limited, Tu.sPM. 3.2, pp. 193-196.
Rejection and Keyword Spotting Algorithms for a Directory Assitance City Name Recognition Application, Benjamin Chigier, Speech Technology Group 1992 IEEE, pp. II-93 to II-96.
Flexible Vocabulary Recognition of Speech, Matthew Lennig, Douglas Sharp, Patrick Kenny, Vishwa Gupta and Kristin Precoda, Bell Northern Research and INRS-Telecommunications; Tu. fPM. 1.3, pp. 93-96.
Lubensky, "Word Recognition using Neural Nets, Multi-State Grossian and K-Nearest Neighbor Classifiers", 1991 IEEE International Conference on Acoustics, Speech and Signal Processing, vol. 1 pp. 141-144.
Bielby Gregory J.
Lennig Matthew
Sharp Robert D.
Adams Thomas
Bell Canada
Hofsass Jeffery A.
Hunter Daniel S.
LandOfFree
Method and apparatus for automation of directory assistance usin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for automation of directory assistance usin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for automation of directory assistance usin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1374864