System and method for battery calibration in portable...

Details System and method for battery calibration in portable... System and method for battery calibration in portable...

2005-01-07

2009-02-17

Tso, Edward (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C324S426000

Reexamination Certificate

active

07492127

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.

REFERENCES:
patent: 5047961 (1991-09-01), Simonsen
patent: 6304087 (2001-10-01), Bertness
patent: 2002/0167293 (2002-11-01), Ptasinski et al.

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