Method for accessing and rendering an image
CA 2256970 A1 · Owner: Sutherland, Stephen B. · Inventors: Coulombe, Sam D.; Sutherland, Stephen B.; Wick, Dale M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a method of defining and rendering an image comprising a plurality of components (bitmaps, vector-based elements, text and effects or other effects) and an alpha channel. The components are grouped into a ranked hierarchy based on their position relative to each other. There can be groups of groups. With this grouping, each component can be defined using a common protocol and rendering and processing of the components can be dealt with in the same manner. The image can be processed on a scanline-by-scanline basis. For each scanline analysis, information regarding neighbouring scanlines are acquired and processed, as needed.
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 23, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 23, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2020.
- 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.