Portable communication apparatus, external apparatus connectable to the portable communication apparatus, and method of controlling the portable communication apparatus

A portable communication apparatus comprising:

• a first circuit configured to communicate over a communication network;
• a second circuit configured to receive a position sensing signal;
• an antenna configured to be adaptable for both of the first and second circuits;
• a port configured to connect with an external apparatus;
• a switch configured to connect the first and second circuits to the antenna and port;
• a first detecting unit configured to detect whether the external apparatus is connected to the port and detect a type of the external apparatus connected to the port;
• a second detecting unit configured to detect whether the first circuit or the second circuit is activated;
• and
• a control unit configured to control the switch, when it is detected that the second circuit is to be activated and the type of the external apparatus is adaptable for the second circuit, the second circuit is connected to the port and that, when it is detected that the type of the external apparatus is inadaptable for the second circuit, the second circuit is connected to the antenna.

A method of controlling a portable communication apparatus including a first circuit configured to communicate over a communication network, a second circuit configured to receive a position sensing signal, an antenna configured to be adaptable for both of the first and second circuits, a port configured to connect with an external apparatus, and a switch configured to connect the first and second circuits to the antenna and port, the method comprising:

• detecting whether the external apparatus is connected to the port and detecting a type of the external apparatus connected to the port;
• detecting whether the first circuit or the second circuit is activated;
• and
• controlling the switch when it is detected that the external apparatus is not connected to the port or when the detected type of the external apparatus is inadaptable for the circuit to be activated, the circuit to be activated is connected to the antenna and that, when the detected type of the external apparatus is adaptable for the circuit to be activated, the circuit to be activated is connected to the port.