Apparatus and method for recognizing connections of digital camera and ear-microphone in mobile communication terminal

A method for recognizing connections of a digital camera and an ear-microphone to a mobile communication terminal in which the digital camera or the ear-microphone is connected through a same jack connector, the mobile communication terminal including a jack sensor for sensing whether a jack is inserted into the jack connector and outputting a sensing signal;

• a hands-free unit for outputting data to a switching unit inputted into the jack connector, and for outputting data to the jack connector inputted from the switching unlit;
• and the switching unit for switching data inputted from the hands-free unit in a standby state to a controller, switching data to be inputted from the controller to the hands-free unit, switching data to be inputted from the jack connector to the controller in response to an input of a switching signal, and switching data to be inputted from the controller to the jack connector, the method comprising the steps of:
• a) determining whether there is an input of the sensing signal;
• b) outputting the switching signal if there is an input of the sensing signal;
• c) recognizing that the digital camera has been connected to the mobile communication terminal if there is data to be inputted from the switching unit within a predetermined time period and then changing an operating mode into a camera mode;
• and
• d) recognizing that the ear-microphone has been connected to the jack connector if no data is input from the switching unit within the predetermined time period, stopping an output of the switching signal, and changing the operating mode to an ear-microphone mode.