System and method for battery calibration in portable computing devices
US7492127B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2005 |
| Grant date | Feb 17, 2009 |
| Priority date | — |
| Expiry date | Aug 8, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/36
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Described is a method which includes a step of initiating a calibration state of a battery status system. The calibration state including charging a battery to a first threshold value; discharging the battery to a second threshold value; and calibrating the battery status system based on the first and second threshold values. Subsequently, the method includes a step of exiting the calibration state. Described is also a portable computing device which includes invades a battery; a controller; and an application executed on the controller for performing calibration of a battery status system of the battery. The application drives the battery to a threshold state and performs the calibration when the battery reaches the threshold state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.