Patent ID: 8462205

Claim:
A landing aid device for aircraft, comprising: means for generating video images of a portion of the field of vision, the device comprising a sensor situated in front of the aircraft intended for picture-taking during poor visibility conditions; means for extracting contours of video images delivered by the means for generating images making it possible to delimit at least one first known shape included in each image; a first head up display having a display zone which occupies a portion of the visor of the cockpit superimposed on the exterior landscape; means for generating a symbology for generating information representing symbols intended to aid piloting and displayed on the head up display, wherein a first symbol comprising landing aid information is generated on the basis of the contours of the first known shape and displayed on the display; a geographical data resource having means for generating a second symbol comprising landing aid information, wherein the geographical data resource includes means for validating and comparing the integrity of data describing the first symbol with data from the geographical data resource; wherein the first known shape is a trapezoidal and the first symbol generated is the contour of a landing runway, the first symbol having two graphical states: a first state displayed when the aircraft is between a first given altitude and a second given altitude, wherein the first symbol is a solid trapezoidal filling the interior of the second symbol; and a second state displayed when the aircraft is between the second altitude and a third altitude, wherein the first symbol has the same shape as the second symbol except smaller and is inserted inside the second symbol.