Automated voice pattern filter
US7003458B2 · kind B2 · utility
3Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2002 |
| Grant date | Feb 21, 2006 |
| Priority date | — |
| Expiry date | Jul 10, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2015/088
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An automated voice pattern filtering method implemented in a system having a client side and a server side is disclosed. At the client side, a speech signal is transformed into a first set of spectral parameters which are encoded into a set of spectral shapes that are compared to a second set of spectral parameters corresponding to one or more keywords. From the comparison, the client side determines if the speech signal is acceptable. If so, spectral information indicating a difference in a voice pattern between the speech signal and the keyword(s) is encoded and utilized as a basis to generate a voice pattern filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.