Vector coding method, encoder using the same and decoder therefor
CA 2201858 C · Owner: Nippon Telegraph And Telephone Corporation · Inventors: Kataoka, Akitoshi; Ikedo, Jotaro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Representative vectors z1i and z2j are selected from codebooks CB1 and CB1, respetively, and multiplied by weighting coefficient vectors w1 and w2 of the same number of dimensions as those of the representative vectors by multipliers 21 and 22, whereby weighted representative vectors z1iw1 and z2jw2 are generated. These weighted representative vectors are vector combined by a combining part 3 into a combined vector y ij, and a combination of the representative vectors is selected by a control part in such a manner as to minimize the distance between the combined vector y ij and an input vector X. The weighting coefficient vectors w1 and w2 each have a maximum component in a different …
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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 September 29, 1995 and granted April 11, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 29, 2017.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.