Voice verification circuit for validating the identity of an unknown person
US5054083A · kind A · utility
37Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1989 |
| Grant date | Oct 1, 1991 |
| Priority date | — |
| Expiry date | May 9, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L17/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A speaker verification system receives input speech from a speaker of unknown identity. The speech undergoes linear predictive coding (LPC) analysis and transformation to maximize separability between true speakers and impostors when compared to reference speech parameters which have been similarly transformed. The transformation incorporated a "inter-class" covariance matrix of successful impostors within a database.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.