Motion vector derivation method, moving picture coding method and moving picture decoding method
CA 2450309 C · Owner: Hagai, Makoto · 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
A motion vector derivation unit (11) includes a comparison unit (20) for comparing a parameter TR1 for a reference vector with a predetermined value to determine whether it exceeds the predetermined value or not; a switching unit (21) for switching selection between the maximum value of a pre-stored parameter TR and the parameter TR1 according to the comparison result by the comparison unit (20); a multiplier parameter table (for multipliers) (22); and a multiplier parameter table (for divisors) (24) for associating the parameter TR1 with a value approximate to the inverse value (1/TR1) of this parameter TR1.
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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 April 28, 2003 and granted August 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 28, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 28, 2025.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.