Abstract: A method for controlling a touch control device includes defining a first area and a second area on a touchpad, detecting whether a touched position on the touchpad that is touched by an operating object falls in the first area or the second area, and calculating the corresponding on-screen coordinates of the operating object with different sets of ratios depending on the touched position.

Abstract: A method for controlling a touch control device includes defining a first area and a second area on a touchpad, detecting whether a touched position on the touchpad that is touched by an operating object falls in the first area or the second area, and calculating the corresponding on-screen coordinates of the operating object with different sets of ratios depending on the touched position.

Abstract: A handwriting input method and apparatus use a determining process to determine whether or not to enter a handwriting mode according to a first touch when the first touch is detected by a touchpad, define and mark a writing frame corresponding to the touchpad on a screen upon entrance into the handwriting mode, and in the handwriting mode, when the touchpad detects a second touch, use a ratio to calculate coordinates of the second touch to generate corresponding coordinates for the writing frame according to an initial location of the second touch.

Abstract: A method for controlling a touch control device includes defining a first area and a second area on a touchpad, detecting whether a touched position on the touchpad that is touched by an operating object falls in the first area or the second area, and calculating the corresponding on-screen coordinates of the operating object with different sets of ratios depending on the touched position.