Reduction of differential resolution of separations
CA 2511060 C · Owner: America Online, Inc. · Inventors: Perlmutter, Sharon M.; Wang, Eric; Perlmutter, Keren O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Certain disclosed implementations use digital image processing to reduce the differential resolution among separations or images in film frames such as, for example, red flare. A location in the red image may be selected using information from another image (1420). The selected location may be modified using information from that other image (1440). The selection may include comparing features of an edge in the first image with features of a corresponding edge in the other image. The modification may include performing wavelet transformations (1410) of the two images and copying certain coefficients (or a function of these coefficients) produced by the application of 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
- Filed December 19, 2003 and granted August 22, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 19, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 2025.
- 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.