Method and apparatus for generating semantically consistent inputs to a dialog manager
CA 2248715 C · Owner: Abella, Alicia · Inventors: Gorin, Allen Louis; Abella, Alicia
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spoken dialog system is constructed to sufficiently understand a user's response to the openended prompt 'How may I help you?' in order to route a caller to an appropriate destination, with subsequent processing for information retrieval or call/task completion. In this invention the relationships among the call types are structured into an inheritance hierarchy. Then a dialog manager exploits this hierarchy and the output of a spoken language understanding module to generate a set of semantically consistent task objectives.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed September 24, 1998 and granted February 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 24, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 24, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.