| 摘要 |
PURPOSE:To prevent mischief or erroneous input of others at the time of user's temporary absence or the like on the way of input. CONSTITUTION:A mode lock switch 10 is connected to an IC 7 for key input which receives the key inputs of input keys 1 to 6, and contents of all key inputs are displayed on a picture display part 8 when the mode lock switch 10 is turned off. When the mode lock switch 10 is turned on, the IC 7 for key input does not accept the key inputs of function input keys 1 to 3 and stores input contents just before turning-on of the mode lock switch 10 in a memory 9. When character input keys 4 to 6 can be accepted, input contents of character input keys 1 to 3 are displayed on the picture display part 8. Thus, when the mode lock switch is turned on in the turning-off state, picture input contents are preserved and the picture display is seen as if operation was performed. |
