Operational mode-based battery monitoring for a battery-powered electronic device
US7123155B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 5, 2002 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Nov 2, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3648
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and an electronic device monitor a battery of the device with respect to device operational mode in one or both of battery charge level monitoring and battery cut-off determination. Mode-based monitoring employs a mode-specific wait period prior to performing a measurement used to determine a remaining charge level of a battery. The mode-specific wait period depends on the operational mode immediately preceding the measurement and therefore, accounts for battery recovery effects on measurement accuracy. Mode-based cut-off determination employs information regarding an impending operational mode to determine whether or not a remaining charge level of the battery is sufficient to support the mode. Only those operational modes for which there is sufficient remaining charge are enabled while operational modes for which there is insufficient remaining power are disabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.