Information recording apparatus and method, information reproducing apparatus and method, information recording program, information reproducing program, recording medium, and information recording medium
CA 2467535 C · Owner: Nakahara, Masanori · Inventors: Koda, Takeshi; Takakuwa, Nobuyuki; Fukuda, Yasuko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An information recording apparatus capable of recording information on a recording medium in such a way that it is possible to prevent that a representative image is improperly displayed to a user and the user improperly recognize moving picture information. A reproduction list PL is recorded on an optical disc (1) and together with this is recorded a reproduction list display inhibit flag PHF indicating whether to limit display of the representative image indicating the content of the reproduction list PL.
Read the whole patent
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 December 5, 2002 and granted January 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 5, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 5, 2024.
- 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
Timeline From CIPO dates
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.