Communications: electrical – Aircraft alarm or indicating systems – Flight alarm
Reexamination Certificate
2009-01-15
2011-12-13
Lee, Benjamin C (Department: 2612)
Communications: electrical
Aircraft alarm or indicating systems
Flight alarm
C340S963000, C340S945000, C340S949000, C701S005000, C701S006000, C701S008000, C701S009000, C701S014000
Reexamination Certificate
active
08077055
ABSTRACT:
Method, device and item of equipment for filtering alarms originating from a windshear detection system embedded in an aircraft being able to emit an alarm. The aircraft has at least one sensor allowing the acquisition of a flight parameter. The device includes: units for the calculation of the second derivative of the flight parameter, units for the calculation of the absolute value of the second derivative of the flight parameter, units for the comparison of the absolute value of the second derivative of the flight parameter with a threshold C1, units for evaluating whether the absolute value of the second derivative of the flight parameter exceeds the threshold C1over a duration greater than a time threshold T, and units for suppressing the alarm originating from the windshear detection system.
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Bowles, R. L. Ed—Institute of Electrical and Electronics Engineers, “Windshear Detection and Avoidance: Airborne Systems Survey,” Proceedings of the Conference on Decision and Control, Honolulu, Dec. 5-7, 19990; [Proceedings of the Conference on Decision and Control], New York, IEEE, US, vol. 2 of 06, Dec. 5, 1990, pp. 708-736, XP 000200136.
Baillon Bertrand
Fleury Stéphane
Mutuel Laurence
King Curtis
Lee Benjamin C
Lowe Hauptman & Ham & Berner, LLP
Thales
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