Fast, language-independent method for user authentication by voice
US8645137B2 · kind B2 · utility
387Cited by
398References
41Claims
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Key dates
| Filing date | Jun 11, 2007 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Nov 10, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L17/14
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for training a user authentication by voice signal are described. In one embodiment, a set of feature vectors are decomposed into speaker-specific recognition units. The speaker-specific recognition units are used to compute distribution values to train the voice signal. In addition, spectral feature vectors are decomposed into speaker-specific characteristic units which are compared to the speaker-specific distribution values. If the speaker-specific characteristic units are within a threshold limit of the speaker-specific distribution values, the speech signal is authenticated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.