Moving picture coding method and moving picture decoding method
CA 2470717 C · Owner: Abe, Kiyofumi · Inventors: Kadono, Shinya; Abe, Kiyofumi; Kondo, Satoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The moving picture coding apparatus includes a motion compensation coding unit (107) for deciding a coding mode for coding a current block to be coded and for generating predictive image data based on the coding mode; and a direct mode enable/disable judgment unit (109) for judging whether or not scaling processing can be performed when the coding mode decided by the motion compensation coding unit (107) is a temporal direct mode. When it , is judged that the scaling processing cannot be performed, the motion compensation coding unit (107) performs motion compensation either by using another coding mode or without the scaling processing.
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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 October 6, 2003 and granted November 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 6, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 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.