| 摘要 |
<p>PURPOSE: To prevent the generation of user's malfunction and a failure by displaying a picture changed in accordance with the depression time of an operation key so as to return the changed picture in the reverse direction when the key is not depressed for a prescribed time or more, and after generating an effective sound corresponding to the picture, returning a current operation state to the state held before the depression of the key. CONSTITUTION: When a power supply key on a keyboard 11 consisting of plural operation keys is continuously depressed in order to turn on a power supply for a portable telephone set 1, a control circuit 2 accesses animation data stored 10 a memory 12, displays an animation corresponding to the depression time of the power supply key on a liquid crystal panel 14 and generates an effective sound from a speaker 3. When the power supply key on the keyboard 11 is not depressed for a prescribed time, the circuit 2 displays the picture on the panel 14 so as to return the picture in the reverse direction in accordance with the continuously depressed time, generates an effective sound from the speaker 3 and then returns the operation state to the state held before the depression of the power supply key. Thereby the generation of user's malfunction or a failure can be prevented.</p> |
