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Method and apparatus for CELP coding an audio signal while distinguishing speech periods and non-speech periods

EP 0762386 A2 · Applicant: Oki Electric Industry Co., Ltd.

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed August 22, 1996 and never granted as a European patent. Had it been granted, its 20-year term would have ended August 22, 2016.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by February 22, 2022.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledAugust 22, 1996
PublishedMarch 12, 1997
GrantedNever granted
Term endedAugust 22, 2016
Application numberEP 96113499
Classification (CPC)G10L19/12

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedAug 22, 1996PublishedMarch 12, 1997Term endedAug 22, 2016

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