Patent ID: 7053754

Claim:
A method for communicating between a plurality of contactless electronic modules and a terminal comprising: generating respective identification numbers at the plurality of contactless electronic modules; sending a general identification request from the terminal to the plurality of contactiess electronic modules; sending identification messages comprising respective identification numbers from the plurality of contactless electronic modules to the terminal responsive to the general identification request, the contactless electronic modules sending the identification messages during time slots corresponding to respective identification numbers thereof; if an identification message is received by the terminal without interference from other identification messages, sending a select message from the terminal to the contactless electronic module from which the identification message was received; if identification message interference is detected at the terminal, sending at least one non-nominative complementary identification request from the terminal to the plurality of contactless electronic modules; generating new identification numbers at each non-selected contactless electronic module responsive to the at least one non-nominative complementary identification request so that the each non-selected contactless electronic module communicates during a new time slot; sending at least one complementary identification message comprising respective new identification numbers from each non-selected contactless electronic module to the terminal during the respective new time slots; and sending a select message to each contactless electronic module when a respective complementary identification message is received therefrom without interference from other complementary identification messages.