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Method for preventing dual-step half-pixel motion compensation accumulation errors in prediction-rich MPEG-2 sequences

EP 1276331 A2 · Applicant: Ravisent Technologies, Inc.

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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 March 31, 2000 and never granted as a European patent. Had it been granted, its 20-year term would have ended March 31, 2020.
  • 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 October 1, 2025.
  • 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.
FiledMarch 31, 2000
PublishedJanuary 15, 2003
GrantedNever granted
Term endedMarch 31, 2020
Application numberEP 02006387
Classification (CPC)H04N19/00 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedMarch 31, 2000PublishedJan 15, 2003Term endedMarch 31, 2020

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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