Abstract: The TAWS system, in addition to an FTLA function for detecting the risk of collision with the terrain, has an end-of-conflict announcement function COT which is activated after the cessation of a warning or alarm concerning the risk of collision with the ground originating from the FTLA function. This COT function, when activated, checks that the aircraft (A) is observing minimum vertical and lateral safe distances, and estimates the lower vertical speed margin with which a new ground collision risk warning will not be retriggered. After confirming the observance of the minimum safe distances, the COT function has an end-of-conflict message (“Clear of terrain”) sent with a lower vertical speed margin indication.

Abstract: The TAWS system, in addition to an FTLA function for detecting the risk of collision with the terrain, has an end-of-conflict announcement function COT which is activated after the cessation of a warning or alarm concerning the risk of collision with the ground originating from the FTLA function. This COT function, when activated, checks that the aircraft (A) is observing minimum vertical and lateral safe distances, and estimates the lower vertical speed margin with which a new ground collision risk warning will not be retriggered. After confirming the observance of the minimum safe distances, the COT function has an end-of-conflict message (“Clear of terrain”) sent with a lower vertical speed margin indication.

Abstract: The invention concerns a method for processing images, texture pattern blocks representative of a typical texture of the images being stored in a memory, the method comprising the following steps: transforming the pixel grey levels of a current block into a current block of frequency coefficients using a predefined transform; building up a merger block, each frequency coefficient positioned at a defined place of the merger block being equal either to the frequency coefficient positioned at the same place of the current block, or to the frequency coefficient positioned at the same place of a texture pattern block among the texture pattern blocks stored in the memory; selecting a merger block according to a predefined function (J); and replacing in the image the current block by the selected merger block. The invention also concerns an electronic device for processing the corresponding images.

Abstract: The invention relates to a method and a device for monitoring risky atmospheric areas. The invention relates to an onboard device connected to meteorological measurement systems making it possible to calculate danger detection areas in front of the aircraft in order to detect potential areas of penetration of the aircraft into risky atmospheric areas. The areas of intersection between the detection areas and the risky meteorological areas are calculated according to the trajectory of the aircraft stored in the navigation system. The method makes it possible to generate alerts and force the display of the meteorological situation in front of the aircraft in case of danger.

Abstract: The system for securing an aircraft flight plan has a flight management system delivering: a flight plan and points comprising passage setpoints in terms of speed, altitude and time; an avionics computer; at least one resource for storing environmental data constituting a hazard for the aircraft; a performance model of the aircraft defining limiting flight conditions according to the performance capabilities of said aircraft; at least one resource for processing the aircraft's avoidance trajectories. It makes it possible, based on a sampling of points of the flight plan, to calculate a set of avoidance trajectories and correlate them with the environmental data in order to detect the engagement points requiring a corrective maneuver.

Abstract: The invention concerns a method for creating a saliency map of an image. It comprises the steps of an image comprising the step of hierarchical decomposition of the image into frequential sub-bands, According to the invention, the method comprises the steps of i. movement estimation between the current image and a preceding image calculated from the decomposition into frequential sub-bands, estimating a dominant movement for the image and a local movement for each pixel of the current image, ii. creation of a temporal saliency map obtained from the global and local movement estimation.

Abstract: The device attracts the attention of an aircraft crew on approach or normal (alert) or abnormal (alarm) crossing, of a traffic zone of an airport infrastructure presenting risks of collision. Accordingly, it selects on the basis of the information provided by the flight instruments, a type of flight phase from among a limited and pre-established choice of predefined types of flight phase. Then considers one or more runway incursion scenarios that are predefined as a function of the selected type of flight phase whose likelihood it analyzes by comparing the position of the aircraft provided by an onboard locating device with a plan of the airport infrastructure derived from an airport database and determines, on the basis of the analyzed scenarios that appear to be likely, alerts and alarms to be emitted in the cockpit.

Abstract: The field of the invention is that of onboard terrain anticollision systems for aircraft. Collisions with the terrain while the aircraft is fully controlled have been and still remain one of the main causes of air disasters. Several generations of devices for warning of risk of collision with the terrain have been developed for some thirty years now. The most advanced of these systems comprise means of alarm differing according to the maneuver to be performed by the pilot. It is of course vital that the recommended maneuver best guarantee the safety of the aircraft. The device according to the invention proposes a device comprising the calculation of several different safety surfaces or profiles. Their comparisons with the topographic data of the surrounding terrain make it possible to deduce therefrom the best alarm and the best maneuver to be performed to avoid the collision between the aircraft and the ground.

Abstract: The present invention relates to a method and a device for hierarchical estimation of motion intended to choose a motion vector from among a plurality of motion vectors for a set of blocks of an origin image divided into blocks. A calculation of an energy function over the set of blocks for each of the motion vectors is carried out. This calculation implements a substep of size of calculation of a Lagrangian constraint adapted to the size of the set of blocks. A choice of a motion vector is carried out by minimizing the energy function over the said set of blocks.

Abstract: The invention addresses the problem of demounting a prestressing cable having a sheath, tendon extending in the sheath and tensioned between two anchoring devices, and a hardened material filling the sheath around the tendons. An energy dissipation device is installed between a zone of the structure and an accessible portion of the cable. The energy dissipation device has a first end applied to a bearing zone and a second end. It is suitable for limiting the force to which it is subjected as a function of the speed of relative displacement between its first and second ends. A first member for retaining the cable is arranged adjacent to the aforesaid portion of the cable. This portion is clamped in a second retaining member engaging the sheath and connected to the second end of the energy dissipation device. The cable can then be severed between the first and second retaining members.

Abstract: The invention addresses the problem of demounting a prestressing cable having a sheath, tendon extending in the sheath and tensioned between two anchoring devices, and a hardened material filling the sheath around the tendons. An energy dissipation device is installed between a zone of the structure and an accessible portion of the cable. The energy dissipation device has a first end applied to a bearing zone and a second end. It is suitable for limiting the force to which it is subjected as a function of the speed of relative displacement between its first and second ends. A first member for retaining the cable is arranged adjacent to the aforesaid portion of the cable. This portion is clamped in a second retaining member engaging the sheath and connected to the second end of the energy dissipation device. The cable can then be severed between the first and second retaining members.

Abstract: In this process the frames are composed of frames with parity of a first type (1, 2) interlaced with frames with parity of a second type. It consists in interpolating the missing lines in the direction of the motion (3) on the one hand, by vertical intra-frame linear filtering (6) on the other hand, and in switching between these two values (8) depending on the confidence accorded to the motion vector.