Communications: directive radio wave systems and devices (e.g. – Aircraft landing system
Reexamination Certificate
2007-06-20
2010-11-23
Gregory, Bernarr E (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Aircraft landing system
C342S027000, C342S061000, C342S063000, C342S065000, C342S118000, C342S120000, C342S175000, C342S195000, C340S945000, C340S963000, C340S971000, C701S001000, C701S003000, C701S016000, C701S017000, C701S018000, C701S300000, C701S301000
Reexamination Certificate
active
07839322
ABSTRACT:
A method of detecting obstacles on board an aircraft while in the vicinity (44) of a touchdown point (27, 42), includes the following operations:selecting/determining a path (41) to be followed by the aircraft overflying the touchdown point;the aircraft overflying the touchdown point following the overflight path, and during the overflight recording signals/data delivered by an on-board rangefinder observing a portion of space extending below the aircraft;analyzing the rangefinder data to detect the presence of obstacles and to determine their positions in a terrestrial frame of reference, where appropriate to determine their dimensions; andrecording the detected obstacle position data, and dimensions, if any, in a memory.
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Filias François-Xavier
Sequeira Jean
Eurocopter
Gregory Bernarr E
Young & Thompson
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