Multichannel acoustic echo cancellation for wireless applications
US9997151B1 · kind B1 · utility
36Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2016 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | May 10, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2021/02082
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An acoustic echo cancellation (AEC) system that detects and compensates for differences in delay times between the AEC system and a set of wireless speakers. The filter coefficients used for AEC are adjusted based on the determined delay time to correct for frequency domain signal rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.