Audio-based presence detection
US11146909B1 · kind B1 · utility
3Cited by
1References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 2020 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | May 8, 2040 |
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.