Pixel generator test set
CA 2050984 A1 · Owner: Parker, Thomas P. · Inventors: Harrison, Gordon L.; Parker, Thomas P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract Apparatus and method for testing video controller devices used with a monitor terminal to generate display configurations on the terminal monitor. The disclosed apparatus and method is embodied in test apparatus arranged to prerecord a count of pixel transitions in a test pattern display intended for use in testing video controller devices. Data representing the test pattern display is applied to video controller devices to generate control signals normally enabling the video controller devices to control a terminal monitor to display the test pattern. A count of the pixel transitions generated by a tested video controller device in response to the applied data is compared with the …
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 September 9, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 9, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 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.