Systems and methods are disclosed for interactively marketing product information to an end user by monitoring the three-dimensional position of a radio-frequency identification (RFID) tag associated with an object within and around a merchandising display. The system includes a detector/reader incorporating...http://www.google.es/patents/US20080021766?utm_source=gb-gplus-sharePatente US20080021766 - RFID Detection System and Methods for Enhanced Marketing
RFID Detection System and Methods for Enhanced Marketing
