Audio-based presence detection
US11805381B2 · kind B2 · utility
2Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2021 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Sep 22, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/13
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device can receive an audio signal and determine a measure of correlation between the audio signal and a microphone signal. The audio signal can be attenuated based on the measure of correlation. The audio signal can be used to drive one or more speakers of the device. Other aspects are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.