Patent ID: 8904291

Claim:
A mobile terminal comprising: a wireless communication unit configured to at least transmit or receive information; a display unit configured to display an image; and a controller configured to: control the display unit to display a first input area extending from a first edge of the display unit in response to a first drag touch applied to the first edge in a first direction, the first input area overlapping at least a portion of the displayed image and having a translucent property to allow the overlapped image to be recognized; control the wireless communication unit to transmit data in response to a touch trace corresponding to an input touch applied to the display unit; control the display unit to display the touch trace corresponding to the input touch in the first input area; control the display unit to move at least a portion of the displayed touch trace in response to a second drag touch applied to a point that is a specific distance from the first edge of the display unit and in a direction opposite to the first direction; control the display unit to move the displayed first input area at an end point of the second drag touch such that the at least a portion of the displayed touch trace is moved out of the display area while the second drag touch is maintained; delete a portion of the displayed touch trace and control the display unit to return the displayed first input area and display the partially deleted touch trace in response to a third drag touch if the second drag touch is shorter than a critical distance; and delete the entire touch trace and control the display unit to move the entire first area out of the display area if the second drag touch is at least as long as the critical distance; wherein the data is acquired via the displayed first input area and transmitted in real time to at least one other terminal.