Patent ID: 7532200

Claim:
An apparatus for setting multi-stage displacement resolution of a mouse, comprising: a X-Y axis plane displacement detector, for sensing a distance and a moving direction generated by the mouse in a two-dimensional space; a switching circuit for setting a resolution value, the switching circuit having multiple switches for being manually adjusted to generate the resolution value directly, each switch being coupled to a resolution setting pin, each resolution setting pin having a state determined by the switch coupled thereto; and a mouse micro controller with a register, coupled to the X-Y axis plane displacement detector and the switching circuit , the mouse micro controller determining the resolution value based on the states of the resolution setting pins, setting a mouse resolution based on the resolution value and storing the resolution value in the register, the mouse micro controller responding to the distance and moving direction sensed by the X-Y axis plane displacement detector to provide a control signal to a computer connected to the mouse, thereby moving the mouse cursor on a screen of the computer, the mouse cursor being moved directly based on the resolution value stored in the register.