Patent ID: 7755532
Filing Date: 2010-07-13
Classification: G01S,G08G

Abstract:
1. A method, comprising: determining whether a track update for a ADS-B unequipped aircraft correlates with an entry in a track file for first TIS-B system for a first region, the first TIS-B system having a first aircraft assignment processor with a first range of addresses allocated to the first region, wherein the first TIS-B system is adjacent to a second TIS-B system for a second region; assigning, for a new entry in the track file for the aircraft, a pseudo address for the aircraft from the first range of addresses; publishing track updates for the aircraft from only a first one of the first and second TIS-B systems, regardless of how many TIS-B systems are actually tracking the aircraft; transmitting a message to the second TIS-B system for the second region when the aircraft enters a handoff region for the first region without requiring the first TIS-B system to know which region will next provide coverage for the aircraft; and maintaining the pseudo address assigned by the first aircraft assignment processor for the aircraft in the second regions along a route of flight.