Method and apparatus for constructing, storing and displaying characters
CA 1279416 C · Owner: Daly, Joseph Patrick · Inventors: Daly, Joseph Patrick; Hennessy, Denis Gerard; Samways, Philip
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 creating and storing characters for display on a video screen. The shape of the graphic character is displayed at various degrees of resolution. The graphic character is stored as a bitmap or as coefficients of spline curves. These can be scaled up or down to give different character sizes. The coefficients can be converted to form pixelmaps which are rectangular arrays of pixels. The pixelmaps may have gray scale values. - 1 -
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
- Granted January 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 2008.
- 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.