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Expired Canadian patentCanada

Method and apparatus for determining acoustic parameters of an auditory prosthesis using software model

CA 1321635 C · Owner: Resound Corporation · Inventors: Dotevall, Mats Bertil; Widin, Gregory Peter

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Abstract From the Canadian patent

Abstract of the Disclosure A software model (36) of the auditory characteristics of an auditory prosthesis (10) is stored independently of the actual auditory prosthesis (10) being fitted to determine the acoustic parameters (24) to be utilized. A transfer function of the auditory characteristics of the individual auditory prosthesis to be fitted, or of an exemplary model of such an auditory prosthesis, is created, transformed into a table or, other usable form, and stored in software usable by the automated fitting program (32). The automated fitting program (32) may then "test" or try by iterative process the various, settings for the acoustic parameters (24) of the auditory prosthesis …

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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

  • Granted August 24, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 24, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 14, 1989
GrantedAugust 24, 1993
Term endedAugust 24, 2010
Patent numberCA 1321635 C
Classification (IPC)H04R25/00 +1 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedApril 14, 1989Patent grantedAug 24, 1993Term endedAug 24, 2010

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