Integration of a microphone array with acoustic echo cancellation and residual echo suppression
US7773743B2 · kind B2 · utility
12Cited by
41References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2006 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | May 8, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M9/082
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Acoustic echo cancellation, residual echo suppression and sound-source localization/microphone array processes are combined in a two-way voice communication system that uses a microphone array to capture local speech. The processes can be configured according to various alternative architectures and enhancements made to the processes to avoid the adverse effects of non-linear operations in the residual echo suppression on the sound-source localization/microphone array process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.