System and method for efficient basis conversion
CA 2265389 C · Owner: Lambert, Robert J. · Inventors: Lambert, Robert J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention describes a method for evaluating a polynomial in an extension field F q M wherein the method comprises the steps of partitioning the polynomial into a plurality of parts each part is comprised of smaller polynomials using a q - th power operation in a field of characteristic q; and computing for each part components of q -th powers from components of smaller powers. A further embodiment of the invention provides for a method of converting a field element represented in terms of a first basis to its representation in a second basis comprising the steps of partitioning a polynomial being a polynomial in the second basis into a plurality of parts, wherein each part is comprised …
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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 March 12, 1999 and granted July 12, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 12, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2021.
- 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.