Aircraft security method

Details Aircraft security method Aircraft security method

2005-10-03

2008-03-25

Pham, Toan N. (Department: 2612)

Communications: electrical

Aircraft alarm or indicating systems

Flight alarm

C340S945000, C340S426120

Reexamination Certificate

active

07348896

ABSTRACT:
A security method obscures the visibility through an aircraft's windshield upon determining the existence of a potential security problem, such as a terrorist attempting to take unauthorized control of the aircraft. The windshield can be obscured by various means such as actuating a liquid crystal system of a chromogenic glass pane; automatically drawing a shade or curtain in front of, behind, or within the windshield; and applying to or within a windshield an opaque or translucent fluid. Although an obscured windshield would likely impede the terrorist, it would not create a problem for a skilled pilot that is more familiar with the aircraft and its instruments. Determining whether a potential security problem exists can be accomplished in various ways such as scanning ID cards; reading passwords; communicating with the flight crew; actuating emergency buttons aboard the aircraft; and comparing cell phone numbers, voice imprints, or facial images to a database.

REFERENCES:
patent: 4326189 (1982-04-01), Crane
patent: 6493128 (2002-12-01), Agrawal et al.
patent: 6731203 (2004-05-01), Cote, Jr.
patent: 6882288 (2005-04-01), Weigl
patent: 7193520 (2007-03-01), Shear

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