Patent ID: 7532191

Claim:
An apparatus for controlling a screen brightness value of a terminal comprising: a controller that controls the terminal to sense an illumination intensity of a photographed object around the terminal, the photographed object comprising a digital image having a plurality of pixels, the controller to determine a level of the illumination intensity from a data table based on a most frequently detected brightness value of the pixels in the digital image, wherein the data table includes a first range of brightness peak values and a second range of brightness peak values different than the first range of brightness peak values, the data table further including a first illumination intensity value corresponding to the first range of brightness peak values and a second illumination intensity value corresponding to the second range of brightness peak values, wherein the controller determines that the most frequently detected brightness value falls within the first range of brightness peak values and the controller reads the first illumination intensity value from the data table based on the most frequently detected brightness value; and a display unit that controls the screen brightness value of the terminal based on the first illumination intensity value read from the data table by the controller based on the most frequently detected brightness value that falls within the first range of brightness peak values.