Spatially informed acoustic echo cancelation
US11849291B2 · kind B2 · utility
0Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2021 |
| Grant date | Dec 19, 2023 |
| Priority date | — |
| Expiry date | May 17, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2430/25
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A plurality of microphone signals can be captured with a plurality of microphones of the device. One or more echo dominant audio signals can be determined based on a pick-up beam directed towards one or more speakers of a playback device. Sound that is emitted from the one or more speakers and sensed by the plurality of microphones can be removed from plurality of microphone signals, by using the one or more echo dominant audio signals as a reference, resulting in clean audio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.