A taxiway approach advisory system. The system may include a computer-readable memory containing runway information and a processor in data communication with the memory. The processor may include a component for ascertaining the altitude of an aircraft, a component for ascertaining the location of the...http://www.google.de/patents/US20080027596?utm_source=gb-gplus-sharePatent US20080027596 - AIRBORNE ADVISORY FOR INADVERTENT APPROACH TO TAXIWAY
