Battery charge reservation for emergency communications
US8548421B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2008 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Apr 5, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless communications device and method for establishing a voltage threshold at which to turn off electronics of a wireless communications device includes determining a power threshold level at which a device is to be shut off when a battery of the device reaches or drops below the power threshold level. The determined power threshold level may be offset. The amount of power remaining for the battery in the communications device may be measured. The communication device may be shut off based on the offset power threshold level so as to preserve enough power for an emergency message to be generated and sent in the case of an emergency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.