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Expired Canadian patentCanada

An apparatus to edit, reproduce, deliver, search and re-generate condition settings for metadata

CA 2482431 C · Owner: Nishikawa, Hirofumi · Inventors: Otoi, Kenji; Asai, Kohtaro; Kuroda, Shinichi

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Multimedia content containing moving pictures and audio is divided into multiple scenes and metadata is generated for each of the scenes obtained as a result of the division. It is possible to generate metadata containing scene structure information metadata that describes the hierarchical structure of the content in addition to scene section information and titles. Also a name or an , identifier of each descriptor contained in the metadata is described as hint information for manipulation of composed of at least one descriptor describing semantic content a structure, and , characteristics of content.

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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

  • Filed March 20, 2003 and granted March 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 20, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 20, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 20, 2003
GrantedMarch 19, 2013
Term endedMarch 20, 2023
Patent numberCA 2482431 C
Classification (IPC)H04N21/84 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedMarch 20, 2003Patent grantedMarch 19, 2013Term endedMarch 20, 2023

Sources & verification

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