Mobile operator device and method for its use

摘要

The method involves receiving identification number of a radio frequency identification (RFID) transponder and distance in predetermined time intervals over the same transmission path of a reading device (8), an evaluation unit (9), and a security module (7) of a mobile operator device (4) by a reference transponder. The security module is verified when the data of the reference transponder with respect to the identification number and the distance or the predetermined time intervals are received from the security module.