Communications: directive radio wave systems and devices (e.g. – Directive – Position indicating
Reexamination Certificate
2006-10-10
2010-02-23
Phan, Dao L (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Position indicating
C342S456000
Reexamination Certificate
active
07667647
ABSTRACT:
At most airports, responsibility of air traffic control starts and stops at the entrance or exit to the runway movement areas, which are taxiways and runways. In the non-movement areas, such as hangers, ramps, and aprons, aircraft movements and separation are no longer the responsibility of air traffic control, but is the responsibility of other parties such as the airport itself, airlines, or other parties. The use of tracking technologies for air traffic control is therefore focused on the movement areas, not the non-movement areas, where there are limitations in aircraft tracking. Furthermore, many of the aircraft transmitting devices are switched off in non-movement areas exacerbating tracking problems in these areas. The present invention includes several methods including broadband multilateration, to extend aircraft tracking from the movement areas into non-movement areas without the need to extend special air traffic control equipment into those areas.
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Breen Thomas J.
Rossano Christopher F.
Smith Alexander E.
Bell Robert Platt
ERA Systems Corporation
Phan Dao L
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