Apparatus and method for acoustic echo cancellation with occluded voice sensor
US11670318B2 · kind B2 · utility
0Cited by
1References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 14, 2021 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Jul 1, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/13
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for auto echo cancellation utilizing an occluded voice sensor. The technology as disclosed and claimed herein and the various implementations and embodiments improves Acoustic Echo Cancellation (AEC) system performance by increasing cancellation quality and speech SNR by the replacement of the lower frequency portion of the microphone signal with the signal of an Occluded Voice Sensor (OVS) signal and never including the spectral band in the transmission. This frequency band replacement excludes the reinjection of that band from the speaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.