Input device with a reduced number of keys

摘要

An input device for use in an electronic apparatus has keys for introduction of information and a display for displaying information which may be introduced by the keys. A display control displays sequentially a predetermined number of characters such as alphabetic information numerical digits or "kana" information. A key corresponds to each displayed character and an input control receives an input information the corresponding character displayed on the display when the respective one of the keys is actuated, and supplies the information to an internal circuit of the apparatus. The device provides input of varied information with a reduced number of input keys.