| 摘要 |
<p>The present invention is a portable telephone device which prevents, during a telephone call, unintended operations resulting from contact by the ear, cheek, or the like with a touch panel or unintended operation of the touch panel due to user error, and is capable of reliably enabling execution of processing from a touch operation on the touch panel at times other than during a telephone call. In the portable telephone device (1), a determination unit (171) determines whether or not audio is being input or output by an audio processing unit (13), whereby it is determined whether or not the device is in a call state. When it is determined by means of the determination unit (171) that the device is in a call state, a call state control disabling unit (172) disables call state control corresponding to a specific operation key image such as a call terminating operation key image (19B) in a call state control image (19) displayed on the display surface (111A) of a display unit (111).</p> |
