Image processing method and apparatus
CA 2090581 C · Owner: Suzuki, Akio · Inventors: Suzuki, Akio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An image processing apparatus for performing accurate discrimination between specific originals and ordinary originals. CCD 101 inputs RGB signals and, color-space matching judgment circuit 106 and pattern matching judgment circuit 113 judge the similarity in the color distribution and pattern between the input RGB data and a predetermined specific image data. CPU 114 judges the similarity and print-signal generator 105 generates a change signal in accordance with the judged similarity. The input RGB signals are changed based on the generated change signal and outputted to external color printer 111.
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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 26, 1993 and granted May 18, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 2015.
- 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.