System, apparatus, and method for improving speech quality in multi-party devices
US6771779B1 · kind B1 · utility
8Cited by
3References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2000 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Mar 1, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/568
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method is disclosed to remove cross talk terms from speech signals in a multi-party conference system using an estimator to first estimate the respective cross talk terms for each of the said plurality of users. In one embodiment, these terms are then multiplied with a filter based on the estimated cross talk terms. Source speech signals may thereby be recovered from the plurality of multi-party conference users without the cross talk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.