Patent ID: 7933631

Claim:
A call informing apparatus for a portable terminal with a display panel or a call informing lamp that emits light when the portable terminal receives an incoming call, the call informing apparatus comprising: a call detecting unit comprising: an external light shielding cap having an opened bottom, wherein a periphery of the opened bottom covers or contacts the display panel or the call informing lamp of the portable terminal; a sensing module configured to generate a sensing signal and including an optical sensor installed in the external light shielding cap and configured to sense light from the display panel or the call informing lamp of the portable terminal; a first controller configured to receive the sensing signal from the sensing module, determine whether the portable terminal receives the incoming call, and generate a call reception signal upon reception of the incoming call; and a wireless transmitter connected to the first controller and configured to transmit the call reception signal; and a call informing unit comprising: a wireless receiver configured to receive the call reception signal from the wireless transmitter; a second controller connected to the wireless receiver and configured to control an indicating lamp to emit light; and the indicating lamp.