Patent ID: 7324087

Claim:
A method for controlling a cursor on a display device, the method comprising: operating a pointing device on a predetermined working area, the pointing device being in contact with the working area, movement of the pointing device in contact with the working area causing a vector to be generated; and moving the cursor on the display device in response to the operating of the pointing device on the predetermined working area, wherein the moving of the cursor reflects a predetermined proportion of the vector of a shift of the pointing device immediately before movement of the pointing device is stopped, wherein when the pointing device is further shifted and in contact with the working area in a predetermined direction, the cursor is moved without reflection of the vector of the prior movement of the pointing device if the current movement of the pointing device satisfies a predetermined condition, and wherein the predetermined condition is that the coordinates of the vector of the current shift of the pointing device immediately before the pointing device is stopped and in contact with the working area and the current vector of the pointing device have opposite values and the magnitude of the current vector is a predetermined multiple of the vector of the prior shift of the pointing device immediately before the pointing device is stopped and in contact with the working area.