Patent ID: 7142815

Claim:
In an electronic radiofrequency identification system including at least one radiofrequency reader and an antenna associated with said radiofrequency reader for generating an interrogation field through which transponders to be identified pass, a method for adjusting detection, transmission and/or reception parameters of said radiofrequency reader as a function of ambient electromagnetic noise, wherein the method includes at least: a step of measuring a level of ambient electromagnetic noise by means of the radiofrequency reader; a step of measuring, by means of the radiofrequency reader, a response of a reference transponder placed, at least temporarily, in the interrogation field of the antenna associated with the radiofrequency reader, said reference transponder having similar characteristics to the characteristics of the transponders to be identified; and a step of adjusting said detection, transmission and/or reception parameters of the radiofrequency reader on the basis of the measured level of ambient electromagnetic noise and the measured response of the reference transponder.