Method and apparatus for battery gauging in a portable terminal using AMOLED display
AssigneeSamsung Electronics Co., Ltd.
InventorJin-Kyu Kim
Life of this patent
Estimating the term…
Abstract
Provided is a battery gauging method for a portable terminal including an active matrix organic light emitting diode (AMOLED) display. The battery gauging method may measure a voltage value of a battery, may determine, for each pixel, RGB information associated with image data buffered in a frame buffer, may determine, for each pixel, a preliminary compensation value corresponding to determined RGB information so as to calculate a compensation value by adding preliminary compensation values of all pixels, and then determine a residual quantity of the battery based on the measured voltage value and the compensation value.
Claims18
A method of gauging a battery in a portable terminal of the type having an active matrix organic light emitting diode (AMOLED) display, the method comprising:
- measuring, by a controller, a voltage value of the battery;
- determining, by the controller, RGB information associated with image data buffered in a frame buffer for each pixel;
- determining, by the controller, a preliminary compensation value corresponding to determined RGB information for each pixel, and calculating a compensation value by adding preliminary compensation values of all pixels;
- and
- determining, by the controller, a residual quantity of the battery based on the measured voltage value and the calculated compensation value.
An apparatus for gauging a battery in a portable terminal, comprising:
- a display unit including an active matrix organic light emitting diode (AMOLED) panel;
- and
- a controller for measuring a voltage value of the battery to determine a preliminary compensation value by determining RGB information associated with image data buffered in a frame buffer for each pixel, for calculating a compensation value by adding preliminary compensation values of all pixels, and for determining a residual quantity of a battery based on the measured voltage value and the compensation value.
A portable terminal having a display of the type having an active matrix organic light emitting diode (AMOLED) panel and a battery, comprising:
- a memory having a frame buffer;
- and
- a controller for measuring a voltage value of the battery to determine a preliminary compensation value by determining RGB information associated with image data buffered in the frame buffer for each pixel, for calculating a compensation value by adding preliminary compensation values of all pixels, and for determining a residual quantity of a battery based on the measured voltage value and the compensation value.
Dependencies are inferred from the claim text.