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Expired Canadian patentCanada

Method and apparatus for speech recognition

CA 2056347 C · Owner: Fujitsu Ten Limited · Inventors: Sako, Kazuya

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A speech recognizing apparatus compares a speech command from a user with one of registration patterns stored in a storage unit in turn. Then if the speech command coincides with one of the registration patterns that controls a predetermined electronic apparatus associated with an operation related to the registration pattern. If the speech command does not coincide with any one of the registration patterns, that stores into the first storage unit the speech command as a new registration pattern in which the speech command is related to a manipulation of the electronic apparatus by the user immediately after speech command is produced.

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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 November 27, 1991 and granted October 7, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 27, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 27, 1991
GrantedOctober 7, 1997
Term endedNovember 27, 2011
Patent numberCA 2056347 C
Classification (IPC)B60R16/02 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedNov 27, 1991Patent grantedOct 7, 1997Term endedNov 27, 2011

Sources & verification

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