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Expired Canadian patentCanada

Reproducing apparatus and method, and recording medium

CA 2490879 C · Owner: Jung, Kil-Soo · Inventors: Jung, Kil-Soo; Moon, Seong-Jin

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

A reproducing apparatus and method includes a reproducing unit to reproduce mainstream data and sub audio data separately added in the mainstream data wherein the reproducing unit comprises a counter used in reproducing the sub audio data. Accordingly, it is possible to more naturally reproduce still image data, such as a browsable slide show to which sub audio data is , additionally included thus preventing an interruption in reproduction of the sub audio data even during a forward or reverse play.

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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 26, 2004 and granted September 11, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 26, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 2026.
  • 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 26, 2004
GrantedSeptember 11, 2012
Term endedMarch 26, 2024
Patent numberCA 2490879 C
Classification (IPC)G11B20/10 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMarch 26, 2004Patent grantedSep 11, 2012Term endedMarch 26, 2024

Sources & verification

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