CA2119072A1 - Method and apparatus for automation of directory assistance using speech recognition - Google Patents

Method and apparatus for automation of directory assistance using speech recognition

Info

Publication number
CA2119072A1
CA2119072A1 CA 2119072 CA2119072A CA2119072A1 CA 2119072 A1 CA2119072 A1 CA 2119072A1 CA 2119072 CA2119072 CA 2119072 CA 2119072 A CA2119072 A CA 2119072A CA 2119072 A1 CA2119072 A1 CA 2119072A1
Authority
CA
Canada
Prior art keywords
directory assistance
caller
lexeme
lexemes
processing unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2119072
Other languages
French (fr)
Other versions
CA2119072C (en
Inventor
Matthew Lennig
Robert D. Sharp
Gregory J. Bielby
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bell Canada Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CA002091658A external-priority patent/CA2091658A1/en
Application filed by Individual filed Critical Individual
Priority to CA 2119072 priority Critical patent/CA2119072C/en
Publication of CA2119072A1 publication Critical patent/CA2119072A1/en
Application granted granted Critical
Publication of CA2119072C publication Critical patent/CA2119072C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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.
CA 2119072 1993-03-15 1994-03-15 Method and apparatus for automation of directory assistance using speech recognition Expired - Lifetime CA2119072C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2119072 CA2119072C (en) 1993-03-15 1994-03-15 Method and apparatus for automation of directory assistance using speech recognition

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CA2,091,658 1993-03-15
CA002091658A CA2091658A1 (en) 1993-03-15 1993-03-15 Method and apparatus for automation of directory assistance using speech recognition
US08/193,522 US5479488A (en) 1993-03-15 1994-02-08 Method and apparatus for automation of directory assistance using speech recognition
US08/193,522 1994-02-08
CA 2119072 CA2119072C (en) 1993-03-15 1994-03-15 Method and apparatus for automation of directory assistance using speech recognition

Publications (2)

Publication Number Publication Date
CA2119072A1 true CA2119072A1 (en) 1994-09-16
CA2119072C CA2119072C (en) 2003-01-14

Family

ID=27169382

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2119072 Expired - Lifetime CA2119072C (en) 1993-03-15 1994-03-15 Method and apparatus for automation of directory assistance using speech recognition

Country Status (1)

Country Link
CA (1) CA2119072C (en)

Also Published As

Publication number Publication date
CA2119072C (en) 2003-01-14

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Effective date: 20140317