Patent ID: 7817015

Claim:
A RFID tag comprising a receiver input section for processing signals from a RFID reader, said receiver input section including an RF detector for converting signals received from a designated RFID reader to a baseband signal, including corrupted baseband signal segments attributable to noise or other RF interference on the received signal, a data comparator for comparing the level of said baseband signal including any said corrupted baseband signal segments to a threshold level and for generating a data output representing portions of said baseband signal exceeding said threshold level, a processor responsive to the baseband signal for tracking its signal level including the level of said corrupted baseband signal segments and for generating an adaptive level as said threshold level for said comparison, whereby to produce a comparator data output substantially free from said corruption, and wherein said processor includes a peak signal detector and an amplifier with selectively adjustable gain for scaling the peak signal detected by said peak signal detector as said threshold level for said comparison.