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Expired Canadian patentCanada

System and methods for improving accuracy of speech recognition

CA 2880554 C · Owner: Inago Corporation · Inventors: Dicarlantonio, Ron; Leonard, Huw; Farmaner, Gary

CIPO record

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Abstract From the Canadian patent

The invention relates generally to the field of speech recognition particularly a system and , method for improving accuracy of speech recognition. In an embodiment the , system is , provided with a module for generating grammar rules automatically from sample utterances. , The grammar rules may also be created for any pre-selected context. These grammar rules may , be used by a speech recognition engine for improving recognition accuracy. The system is also , provided with a module for dynamically generating grammar rules tailored for a context of a , conversation. The dynamically generated grammar rule or rules may be provided to the speech , recognition engine to further identify …

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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 October 5, 2004 and granted November 21, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 5, 2024.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 5, 2004
GrantedNovember 21, 2017
Term endedOctober 5, 2024
Patent numberCA 2880554 C
Classification (IPC)G10L15/02 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedOct 5, 2004Patent grantedNov 21, 2017Term endedOct 5, 2024

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.