Multiwindow display control method and apparatus
CA 2044931 C · Owner: Minakuchi, Yu · Inventors: Minakuchi, Yu; Yano, Katsutoshi; Suzuki, Toshimitsu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multiwindow display control method and apparatus for easily controlling a display of a plurality of groups of windows each including a plurality of windows the apparatus comprising: plural frame memory control units each storing pixel data to be displayed on one of the windows, a first group number of a group of windows to which the window belongs, and a priority number for identifying a display priority among the windows included in the same group of windows; an outline generating unit for generating a second group number each identifying one of the group of windows; a pixel data arbitration unit for determining a group of windows having the first group number which coincides with the …
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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 18, 1991 and granted August 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 18, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2013.
- 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.