Apparatus and method for multiscale zerotree entropy encoding
CA 2294159 A1 · Owner: Lee, Hung-Ju · Inventors: Sodagar, Iraj; Lee, Hung-Ju; Chai, Bing-Bing
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus (100) and a concominant method is disclosed for encoding wavelet trees to generate bitstreams with flexible degrees of spatial quality and , complexity scalabilities. The zerotree entropy (ZTE) encoding method is extended to achieve a fully scalable coding method by implementing a multiscale zerotree coding scheme.
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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 July 13, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 13, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 13, 2020.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.