Method and apparatus for precisely varying the display rate of computer generated graphic images
CA 2018911 C · Owner: Tolomei, Victor · Inventors: Tolomei, Victor
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for precisely varying the display rate of computer generated graphic images. These images are generated by a computer system. The images are made up of a plurality of individual cells. Each cell is a picture of the object at a different point in time. With the present method the user inputs the desired display rate into the computer system. The computer then converts this display rate into a vector located in the first quadrant of an x,y coordinate system. In this system, the x-axis represents increasing time and the y-axis represents cell number. The vector is displaced away from the x-axis through an angle. Theta is a predetermined function of the previously entered …
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 June 13, 1990 and granted December 7, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2012.
- 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.