Speaker verification system and process
US5677989A · kind A · utility
52Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1993 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | Apr 30, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C9/37
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An individual's speech sample, obtained for the purpose of speaker verification, is used to create a "protected" model of the speech. The protected model, which is stored in a database in association with a personal identifier for that individual, is arranged so that the characteristics of the individual's speech cannot be ascertained from the protected model, without access to an encryption key or other secured information stored in the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.