A portable RFID reader (or reader/writer) that also employs a location determination subsystem that facilitates determination of the reader (or reader/writer) location. The location subsystem can employ a satellite-based GPS (Global Positioning System) location technology where such signals are unimpeded...http://www.google.de/patents/US20080278328?utm_source=gb-gplus-sharePatent US20080278328 - MOBILE RFID READER WITH INTEGRATED LOCATION AWARENESS FOR MATERIAL TRACKING AND MANAGEMENT
