Discernment information input apparatus

摘要

The identification information input apparatus comprises a rotary encoder group for giving the user a click feel per unit rotation and generating an electric signal, and inputting arbitrary alphanumeric characters forming alphanumeric characters assigned in proportion to rotation angle via rotating operation, a pushbutton switch group for confirming alphanumeric characters input via the dial unit, password conversion unit for converting the electric signal generated by the dial unit to the alphanumeric characters based on a conversion table, and password authentication unit for authenticating the converted alphanumeric characters by checking whether the alphanumeric characters converted by the conversion unit are alphanumeric characters constituting the password.