External control system for touch device and method using the same

A system having an external control system for a touch device, wherein (a) the touch device comprises:

• a signal processing unit for processing signals within the touch device;
• a display unit coupled to the signal processing unit;
• a first communication unit electrically coupled to the signal processing unit and capable of operating according to a first predetermined communication standard for wirelessly communicating with the external control system in accordance with the first predetermined communication standard;
• an input signal processing unit for processing an input signal from the external control system;
• and a first storage unit for storing an interface program executable by the signal processing unit, and (b) the external control system comprises:
• an input unit;
• a central processing unit for processing signals within the external control system;
• an input/output unit coupled to the central processing unit;
• a second communication unit coupled to the central processing unit and capable of operating according to the first predetermined communication standard;
• and
• a second storage unit electrically coupled to the central processing unit and for storing a control programs configured to control a transmission route of the input signal from the input unit of the external control system when the external control system operates in a first input mode;
• wherein the interface program is capable of identifying the external system and configured to display an inputted content associated with the input signal from the input unit of the external control system.