Recognition of image colors using arbitrary shapes in color space
CA 2018640 C · Owner: Torre-Bueno, Jose R. · Inventors: Torre-Bueno, Jose R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a color identification system in which a video signal is rendered into three mutually distinct color element signals, a set of defined colors is established. The disclosed invention defines each color in the set by three compound color components, each compound color component being defined by pyres combination of color element magnitude ranges. As the color element signals change at the pixel rate of the video signal the, invention combines them into three compound signals each, compound signal resulting from combination of a respective two of the color signals. Each of these pairwise combinations is compared with compound color component sets to determine whether the current pixel …
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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 June 8, 1990 and granted June 11, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 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.