Multimodulus blind equalization using piecewise linear contours
CA 2200139 C · Owner: Werner, Jean-Jacques · Inventors: Yang, Jian; Werner, Jean-Jacques
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A blind equalization technique ~ the multimodulus algorithm (MMA) ~ adapts coefficients of an equalizer so as to minimize dispersion of the output samples of the equalizer, around piecewise linear contours of a signal space. The MMA technique is illustrated in the context of both square and non-square signal point constellations.
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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 17, 1997 and granted June 27, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 17, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 17, 2019.
- 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.