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Expired Canadian patentCanada

Information storage medium containing subtitles and processing apparatus therefor

CA 2544391 C · Owner: Chung, Hyun-Kwon · Inventors: Moon, Seong-Jin; Kang, Man-Seok; Chung, Hyun-Kwon

CIPO record

Overview

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Abstract From the Canadian patent

An information storage medium containing subtitles and a subtitle processing apparatus, where the information storage medium includes: audio-visual (AV) data; and subtitle data in which at least one subtitle text data and output style information designating an output form of the subtitle texts are stored with a text format. With this, output times of subtitle texts included in the text subtitle data can be overlapped, a subtitle file can be easily produced and subtitles for an AV stream can be output with various forms.

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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 November 10, 2004 and granted March 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 10, 2024.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 10, 2004
GrantedMarch 13, 2012
Term endedNovember 10, 2024
Patent numberCA 2544391 C
Classification (IPC)G11B20/10

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 10, 2004Patent grantedMarch 13, 2012Term endedNov 10, 2024

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