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Expired European patentEurope

Improved filter smoothing in multi-channel audio encoding and/or decoding

EP 1851759 B1 · Applicant: Telefonaktiebolaget LM Ericsson (publ)

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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 February 22, 2006 and granted June 20, 2012. A European patent lasts at most 20 years from filing, so its term ended February 22, 2026.
  • 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.
FiledFebruary 22, 2006
PublishedNovember 7, 2007
GrantedJune 20, 2012
Term endedFebruary 22, 2026
Application numberEP 06716924
Classification (CPC)G10L19/008 +2 more

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedFeb 22, 2006PublishedNov 7, 2007Patent grantedJune 20, 2012Term endedFeb 22, 2026

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

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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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