A method and apparatus for reading film grain patterns in a raster order in film grain simulation
CA 2584029 C · Owner: Interdigital Madison Patent Holdings · Inventors: Llach, Joan; Gomila, Cristina; Cooper, Jeffrey Allen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a method and apparatus for reading film grain patterns in a raster order in film grain simulation including establishing a pseudo-random starting position, repeating the pseudo-random starting position for each line of a group of film grain blocks and using a different pseudo-, random starting position for each display line of a next group of film grain blocks. In various embodiments of the present invention the different pseudo-, random starting positions are triggered by resetting at least one seed value of a pseudo-random number generator implemented to determine said pseudorandom starting positions.
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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 October 17, 2005 and granted March 25, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
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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.