INPUT DEVICE FOR INPUTTING PASSWORD OR THE LIKE AND PORTABLE TELEPHONE DEVICE HAVING THE INPUT DEVICE

摘要

An input device capable of avoiding simple input of the correct password and a portable telephone device are provided. A contact sensor (56) enabling input of a line by moving a finger of the user on an area where numeric keys (48) of a portable telephone (10) are arranged is provided in the area. When password information for canceling key-lock is registered, the user moves a finger of the user on the contact sensor (56) to input a linear shape. The data on the key with which the user first comes to contact when the user tries to input the line and the data on the key from which the user separates the user's finger last are registered for each place, thus completing the registration of the password. When the user wants to cancel the key-lock, the user operates the contact sensor similarly to the registered content. Then the key-lock is canceled.