METHOD FOR AUTOMATICALLY MEASURING ELEMENTARY TIME UNIT FOR COMMUNICATION PERIPHERALS DEDICATED TO SMART CARDS

摘要

The invention concerns a method for measuring the elementary time unit (ETU) during a dialogue between a reader and a smart card, in order to configure the reading device, consisting in taking into account the start bit descending front, taking into account said start bit ascending front, and measuring the time between said descending and ascending fronts thereby enabling the automatic calibration of the communication processor. The invention is preferably applicable to communication peripherals dedicated to smart cards.