Device for the confidential introduction of a secret code

摘要

The device has a display unit (3) displaying numerical and/or alphabetical characters based on a well defined algorithm, at each request of an actuation unit. The unit (3) displays until the appearance of the characters corresponds to the character of a secret code to be entered. The actuation unit has multiple actuation components (1N) corresponding to the characters to be entered in relation with a display component (3A).