Speaker verification method and apparatus using mixture decomposition discrimination
CA 2173302 C · Owner: Sukkar, Rafid Antoon · Inventors: Sukkar, Rafid Antoon; Gandhi, Malan Bhatki; Setlur, Anand Rangaswamy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A new speaker verification method, termed Mixture Decomposition Discrimination, (MDD) and a new apparatus for using MDD are presented. MDD takes mixture component score information from a speaker independent recognizer and transmits this information while it is still decomposed as a mixture of component scores that indicate the response of the states of the HMM before this information is combined into a single speaker independent recognizer parameter. MDD can be veryeffective in improving the performance of existing verification methods based onspeaker dependent HMMs with cohort normalization because the errors of the two speaker verification methods are very uncorrelated statistically. …
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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 April 2, 1996 and granted January 2, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 2, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2018.
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