Recording medium having data structure including navigation control information for managing reproduction of video data recorded thereon and recording and reproducing methods and apparatuses
CA 2465107 C · Owner: Um, Soung Hyun · Inventors: Seo, Kang Soo; Park, Sung Wan; Um, Soung Hyun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The recording medium includes a navigation area storing navigation control information for managing the reproduction of at least video data from the recording medium. The navigation area, according to one embodiment stores at , least one navigation control object that includes an attribute field indicating at least one attribute of the navigation control object and a navigation direction number field indicating a number of navigation directions. Each navigation control object includes at least one navigation direction.
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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 June 11, 2003 and granted August 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 11, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 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.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.