COMMUNICATION DEVICE COMPRISING A LUMINOUS ACTIVATION SENSOR

摘要

The communication device 1 comprises a memory M for storing a numeric key and a diversification algorithm; a calculator D for generating an identification code from at least the numeric key and the diversification algorithm; a display for displaying the identification code generated 101, 102, 103 by the calculator. The communication device further comprises a light sensor 11 for receiving a light signal 30.