A flight information communication system has a plurality of RF direct sequence spread spectrum ground data links that link respective aircraft-resident subsystems, in each of which a copy of its flight performance data is stored, with airport-located subsystems. The airport-located subsystems are coupled...http://www.google.es/patents/US6775545?utm_source=gb-gplus-sharePatente US6775545 - Wireless, ground link-based aircraft data communication system with roaming feature
Wireless, ground link-based aircraft data communication system with roaming ...