Identification tags are secured to parcels moving upon a conveyor belt. The identification tags each contain a transponder circuit in electrical communication with a transponder antenna. The transponder circuit contains a unique digital code containing data relating to the parcel. When the identification...http://www.google.fr/patents/US6107921?utm_source=gb-gplus-shareBrevet US6107921 - Conveyor bed with openings for capacitive coupled readers
Conveyor bed with openings for capacitive coupled readers
