Digital signal coding/decoding apparatus
CA 2807566 C · Owner: Mitsubishi Electric Corporation · Inventors: Yamada, Yoshihisa; Asai, Kohtaro; Sekiguchi, Shunichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Digital decoding for receiving and decoding a compression-coded digital signal in predetermined transmission units comprises initializing an arithmetic decoding process based on information of initializing a table of probability of occurrence which is multiplexed on a header of data for the predetermined transmission units and information of initializing a register value which shows the arithmetic decoding process. A context model to be used for each type of decoded data is determined. A binarization rule defined based on the type of decoded data is generated. A probability of occurrence generation unit for providing a probability of occurrence corresponding to the context model determined …
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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 April 10, 2003 and granted November 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 10, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 2025.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.