System and method for efficiently determining a blend value in processing graphical images
CA 2235751 C · Owner: 3Dfx Interactive, Incorporated · Inventors: Tarolli, Gary; Sellers, Scott
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for generating blend values (18) for three-dimensional graphic rendering includes a first register (12), a second register (14) a third, register (15), and index creation unit (16) a blend, value generation unit (18) and a blending unit (20). The first register receives and stores color pixel data, the second register receives and stores a depth perspective component, and the third register receives and stores fog color data.
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 November 1, 1996 and granted June 18, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 1, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 1, 2018.
- 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.