Method for eliminating noise and portable electronic device using same

A portable electronic device, comprising:

• a case;
• a camera lens having a lens coil and a lens magnet interacting with the lens coil, the camera lens further including a side wall and a lens holder moveable relative to the side wall;
• a sound generator attached to the case for producing sounds;
• a controlling system for applying electrical current to the lens coil for performing a functional movement and a noise eliminating movement of the lens holder;
• wherein the functional movement is from an initial position to a position where the camera lens at a focusing state, and the noise eliminating movement is from the initial position to a position where the lens holder is farther away from the case.

A method for eliminating noise comprising the steps of:

• providing a portable electronic including a case, a camera lens attached to the case and including a lens holder, a sound generator fixed to the case, and a controlling system electrically connected to the camera lens and the sound generator;
• judging whether the sound generator is working or not;
• applying controlling electrical current to the camera lens for drive the lens holder to a position farther away from the case, when the sound generator is working;
• revoking the controlling electrical current when the sound generator stops working.