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Expired European patentEurope

Bit rate reduction in audio encoders by exploiting auditory temporal masking

EP 1777698 B1 · Applicant: Her Majesty in Right of Canada as Represented by the Minister of Industry

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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.

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Why it's free to use

  • Filed August 27, 2003 and granted September 3, 2008. A European patent lasts at most 20 years from filing, so its term ended August 27, 2023.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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 27, 2003
PublishedApril 25, 2007
GrantedSeptember 3, 2008
Term endedAugust 27, 2023
Application numberEP 07002179
Classification (CPC)G10L19/02

Timeline

Timeline From EPO dates

2004200620082010201220142016201820202022Application filedAug 27, 2003PublishedApril 25, 2007Patent grantedSep 3, 2008Term endedAug 27, 2023

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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