Device for encoding sequences of frames constituted by film-type images and video-type images, and corresponding decoding device
CA 2118955 C · Owner: Philips Electronics N.V. · Inventors: Guede, Frederique
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Device for encoding sequences of frames constituted by film-type images and video-type images and corresponding decoding device. A device of this type provides the possibility of encoding sequences of frames constituted by video-type images of a first frequency (for example 30 Hz) and film-type images whose original frequency is lower than this first frequency (for example 24 Hz) and which are converted by means of the "3:2 pulldown" technique. This encoding device comprises: - means (53 56, 57 for detecting the sequences of film-type images from the stream of input data - a device (58) for preprocessing these sequences for realising an inverse conversion of the frequency by eliminating …
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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 March 14, 1994 and granted July 22, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2016.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.