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

摘要

A contact sensor capable of inputting a character by tracing a character with user's finger is arranged in a region of a ten-key unit of a mobile telephone. When registering a password to release a key lock, a user traces a shape of a line, a character, a number, or other symbol on the contact sensor with his/her finger so that the shape is inputted and stored in a memory, thereby completing registration of a password. When releasing the key lock, the user traces the registered shape on the contact sensor with his/her finger so that the key lock is released. The input is easy. Even if the password input operation is observed by a third person, the password will not be easily known to the third person.

主权项

1. An input device, comprising:
a contact sensor on a plurality of hard keys and a region around the plurality of hard keys; a memory for storing a shape traced by a user on the contact sensor; a controller configured to disable an execution of a particular function and to clear the particular function from a disabled state thereof, upon determining that the same shape as the shape stored in the memory is inputted from the contact sensor.