Battery power monitoring and audio signal attenuation
US9119159B2 · kind B2 · utility
2Cited by
4References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2011 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | May 26, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
To reduce the risk of brown outs and resets in a mobile station using a far-field speaker, a voltage level of a battery and a level of an input audio signal are monitored. When the level of the audio signal increases past a threshold level, and the voltage level of the battery falls below a threshold voltage, an attenuation is determined and applied to the audio signal. The applied attenuation reduces the volume of the audio signal, which reduces the risk of a brown out or a reset due to insufficient voltage in the mobile station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.