Moving picture receiving method and apparatus
CA 2090382 C · Owner: Mitsubishi Denki Kabushiki Kaisha · Inventors: Saito, Taku
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus are presented for compensating for lost blocks of image data in transmitted signals for, instance television signals. The method involves a series of steps performed in the receiving apparatus alone. The first step is the detection of a lost image data block. Then an average value is calculated for each data block adjacent to the lost data block, and an average value is also calculated for each data block at those same positions in the preceding frame. A difference value between the pair of average values for each of the respective block positions is determined and compared to a, predetermined threshold value. The lost data block is replaced by either the average …
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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 February 25, 1993 and granted December 28, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 25, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2015.
- 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.