Method for compressing and decompressing video data
CA 2441473 C · Owner: T-Mobile Deutschland Gmbh · Inventors: Mossakowski, Gerd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for compressing and decompressing video data consisting of an array of individual image points (pixels). Each pixel has a pixel value that changes with time and that describes the colour or luminosity information of the pixel. According to the method a priority is allocated to , each pixel and the pixels are then stored in a priority array according to this priority allocation. Said array contains at each moment in time the pixel values that have been classified according to the priority allocation. The pixels and the pixel values that have been used to calculate the priority allocation are transmitted or saved according to said priority allocation. …
Read the whole patent
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 19, 2002 and granted July 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 2024.
- 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.