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Expired Canadian patentCanada

Film grain simulation for normal play and trick mode play for video playback systems

CA 2803789 C · Owner: Thomson Licensing Sas · Inventors: Gomila, Cristina; Llach, Joan; Cooper, Jeffrey Allen

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

There is provided method and apparatus for film grain simulation for normal play and trick mode play for video playback systems. A method for simulating film grain in video includes the step of performing (214) film grain simulation on a sequence of decoded video pictures in decode order.

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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 27, 2005 and granted April 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 27, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 27, 2005
GrantedApril 15, 2014
Term endedOctober 27, 2025
Patent numberCA 2803789 C
Classification (IPC)G06F7/58 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedOct 27, 2005Patent grantedApril 15, 2014Term endedOct 27, 2025

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.