Method for detecting touch point of multi-type objects

A method for detecting touch points of multi-type objects, comprising:

• obtaining a plurality of touch points by a first basic detection result;
• determining a first-type touch point existing when an energy variation of the touch points above a first effective value and below a second effective value;
• determining a second-type touch point existing when the energy variation of the touch points above the second predetermined value;
• obtaining coordinate positions of the first-type touch point, comprising:
• obtaining a first basic detection result;
• performing a magnifying operation on the first basic detection result by a first magnification ratio and thereby obtaining a first scanning result;
• determining the coordinate positions of the first-type touch point from the first scanning result;
• and
• obtaining coordinate positions of the second-type touch point, comprising:
• obtaining a second basic detection result;
• performing the magnifying operation on the second basic detection result by a second magnification ratio and thereby obtaining a second scanning result, wherein the first magnification ratio is larger than the second magnification ratio;
• and
• determining the coordinate positions of the second-type touch point from the second scanning result.

A method for detecting touch points of multi-type objects, the method being adapted to detect a touch apparatus whether or not being touched, the touch apparatus comprising a plurality of touch sensing devices, the method comprising:

• detecting the touch sensing devices and thereby obtaining a first basic detection result;
• processing the first basic detection result by a first magnification ratio and thereby obtaining a first scanning result;
• determining, if the first scanning result indicates that there exists no touch point having an area size larger than a predetermined value, the coordinate position of the touch point belonging to a first-type touch point according to the first scanning result;
• and
• executing, if the first scanning result indicates that there exists a touch point having an area size larger than the predetermined value, following operations:
• detecting the touch sensing devices and thereby obtaining a second basic detection result;
• processing the second basic detection result by a second magnification ratio and thereby obtaining a second scanning result;
• determining the coordinate position of the touch point belonging to the first-type touch point according to the first scanning result, and determining the coordinate position of the touch point belonging to the second-type touch point according to the second scanning result.