Display control apparatus for reproducing color image on crt display device and matrix type display device
CA 2010744 C · Owner: Omori, Takuro · Inventors: Omori, Takuro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A display control apparatus for displaying a color image on a cathode ray tube and a matrix type display device, including an image data generating unit for generating digital image data corresponding to a pixel of a color image to be displayed,a luminance data generating unit connected to the image data generating unit for generating,from the digital image data digital luminance, data corresponding to luminances of the pixel for three primary colors,a digital-to-analog conversion unit connected to the luminance data generating unit for converting the digital luminance data into analog luminance signals and outputting the analog luminance signals to the cathode ray tube,and, a gradation …
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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 February 22, 1990 and granted October 4, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 22, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 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
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.