Patent ID: 7471967

Claim:
A wireless communication terminal having a plurality of magnetic pole sensors to sense opening/closing, comprising: a storing means for storing a first threshold magnetic force and a second threshold magnetic force; a magnetism generating means for generating magnetism; a magnetic sensor for sensing an intensity of magnetism generated in the magnetism generating means, which is a magnetic force; a controlling means for comparing the magnetic force sensed in the magnetic sensor with the first threshold magnetic force and the second threshold magnetic force to thereby produce a comparison result and controlling a switching means to activate/inactivate an output means based on the comparison result; the switching means switched according to a control signal transmitted from the controlling means to thereby produce a switching result; and the output means activated/inactivated based on the switching result, wherein the controlling means determines that a sub-body is closed when the magnetic force sensed in the magnetic sensor exceeds the first threshold magnetic force and controls the switching means to inactivate the output means, or the controlling means controls the switching means to activate the output means when the sensed magnetic force does not exceed both first and second threshold magnetic forces, whereas the controlling means maintains the switching means and the output means in a current state when the sensed magnetic force does not exceed the first threshold magnetic force but exceeds the second threshold magnetic force.