Method for feature preprocessing for pattern matching
CA 2423304 A1 · Owner: King, Reginald Alfred · Inventors: King, Reginald Alfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pattern matching preprocessing system which comprises: a) means for effecting a frequency domain transform on an input signal; b) means for producing a spectral plot from the output of a); c) means for effecting a spectral reconfiguration permutation and mapping (SRP & M) on the spectral plot as hereinbefore defined; d) means for effecting an inverse frequency domain transform on the output of c); and e) means for applying a Wave Shape Descriptor coding and classification to the output of d).
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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 26, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 26, 2023.
- 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.