Method of and apparatus for generating colour matte signals
CA 1234909 A · Owner: N.V.Philips'Gloeilampenfabrieken · Inventors: Cole, David J.; Cosh, Ian S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PHB. 33.072. ABSTRACT:, A method of generating colour matte signals comprises the steps of: inputting hue, saturation and, luminance values; calculating R, G and B colour component values from the hue, saturation and luminance values; calculating luminance (Y), and colour difference component (Cr and Cb) values from the calculated R G and B values;, and outputting the calculated Y Cr, and Cb values. The, hue value in two parts the first of which defines one of, six segments formed by dividing each side of the colour triangle in half and the second of which define intermediate values within the segment. The R, G and B values are determined by calculating three colour components from the …
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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
- Granted April 5, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 5, 2005.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.