System for predicting speech recognition accuracy and development for a dialog system
CA 2515511 C · Owner: Telstra Corporation Limited · Inventors: Starkie, Bradford
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for developing dialog systems estimates the speech recognition accuracy achievable when using a dialog system and the number of example , input phrases required to achieve a desired speech recognition accuracy. The maximum achievable speech recognition accuracy is also predicted. The development system thereby allows a developer of a dialog system to determine how and whether to continue development of the dialog system. The development system includes a grammatical inference engine for generating a grammar for the dialog system on the basis of example input phrases and an in-grammar , speech recognition accuracy estimator for generating the estimate of speech recognition …
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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 February 11, 2004 and granted October 30, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 11, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 2026.
- 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
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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.