Abstract: An airborne shootings detection and piloting aid equipment is disclosed for an aircraft including a multi-sensor system supplying signals representing an environment of the aircraft including at least one system supplying a signal, referred to as an LWIR/MWIR signal, representing infrared radiation lying the far infrared or mid-infrared range; piloting aid means for obtaining first piloting information including information representing obstacles present in the environment of the aircraft; and shootings detection means for obtaining second piloting information including information representing shootings in the vicinity of the aircraft, the piloting aid means and the shootings detection means using signals representing an environment of the aircraft including at least the LWIR/MWIR signal; and obtaining means for obtaining piloting aid parameters from first and second piloting information.

Abstract: A movement detection device, including a multi-element photodiode, the multi-element photodiode comprising a plurality of pixels, referred to as megapixels, and, for at least one megapixel of the multi-element photodiode, a mask partially obscuring a sensitive zone of said megapixel, the mask consisting of a plurality of zones including at least one opaque zone and at least one transparent zone, an opaque zone being able to prevent a light beam from fully reaching portions of the sensitive zone of the megapixel corresponding to the opaque zone, a transparent zone being able to allow a light beam to reach a portion of the sensitive surface of the megapixel corresponding to the transparent zone, each opaque zone having at least one adjacent transparent zone so as to obtain an alternation of opaque zones and transparent zones in the mask.

Abstract: A defective-pixel detection method included in an image-processing procedure, including a pixel-processing procedure applied to pixels of an image supplied by an image sensor. Each pixel is associated with a classification value representing a state of said pixel. The method includes, for each pixel: applying the pixel-processing procedure; analyzing a result of the pixel-processing procedure; in the event of obtaining an unusual result representing a defect on a photosite of the image sensor that supplied said pixel, incrementing a number of detections of an unusual result for said pixel; and associating said pixel with a classification value representing a defective pixel when said number reaches a first threshold.

Abstract: A method for the management and maintenance of an aircraft including a zone with a high degree of security, a man-machine interface of the aircraft being included in the zone with a high degree of security and necessary for a maintenance operation to be performed by a maintenance operator on a device of the aircraft to be maintained placed outside the zone with a high degree of security. The method includes: connection of a first device to the high-security zone; connection of a second device to a third device; reception of the first device by the second device of the man-machine interface of the aircraft and transfer of information for display of the man-machine interface of the aircraft to the third device,; and connection of the second device to a server by means of the telecommunication network in order to obtain information from the server intended for the third device.

Abstract: A method for maximizing a quantity of enabled transmission requests from a set of transmission requests in a mobile wireless network comprising a plurality of mobile nodes. Said method is implemented by a master node and activated on reception by the master node of an event belonging to a predefined set of events comprising a first type of event involving a modification to the topology of the network. The method comprises: obtaining a set of transmission demands; if the event is of the first type, implementing an optimization procedure comprising: defining transmission rate and latency constraints; defining at least one subset of the set of transmission requests; associating each subset defined with a cost function; determining a subset of maximum-cardinality compatible with said constraints and minimizing the cost function, said subset representing the transmission requests to be enabled.

Abstract: A communication method in an ad hoc network, including a coordinating mobile communication device, referred to as the coordinator device, and a plurality of subordinate mobile communication devices, referred to as subordinate devices, each communication device including a wireless communication module and a positioning module using a transmission of first pulses modulated in accordance with a first ultra-wide band modulation in order to determine information representing a position of said communication device. The method includes, when it is implemented by a communication device: obtaining data to be transmitted; checking a transmission capability of the wireless communication module; when the wireless communication module does not allow to transmit the data, using the positioning module to transmit said data in the form of second pulses orthogonal to the first pulses.

Abstract: A power/data electrical coupler, designed to send over a two-wire bus or to receive therefrom data signals and to deliver to said two-wire bus or receive therefrom a power-supply potential. Such a coupler includes a transformer, a first winding of which and a second and third winding of which are connected in series with each other with a common terminal connected to a power supply line and the other two terminals to a two-wire bus. It also includes a second isolation transformer connected between said first transformer and said two-wire bus. According to the invention, said terminal common to said second and third windings is connected to said power supply line by means of a band-rejection filter rejecting one or more of the frequency bands including the resonant frequency or frequencies resulting from the association of the isolation transformer and the transformer.

Abstract: A method for processing high-frequency movements in an optronic system including an image sensor functioning with a first acquisition frequency, each image obtained by the image sensor representing a scene, the method includes a step of obtaining signal values representing a movement of the scene from a high-frequency movement sensor functioning with a second acquisition frequency higher than the first acquisition frequency, a step of determining values representing a movement of an image in the course of acquisition by the image sensor from values of the signals representing the movement of the scene, and a step of transmitting the values representing the movement of the image in the course of acquisition by the image sensor to a movement compensation device so that the movement compensation device can compensate for the movement of the image in the course of acquisition by the image sensor.

Abstract: An electrical coupler includes: a sending transformer having a winding for receiving data signals and two windings connected in series with a common point and two terminals to be connected to a first wires pair of a bus to deliver the data signals at the first winding terminals to said wire pair; a receiving transformer having two windings connected in series with a common point and two terminals to be connected to a second pair of wires of said bus to receive data signals on the pair of wires and a winding for delivering said data signals; and a galvanic isolation transformer with a first winding, the terminals of which are connected to the coupler's power supply pins, and second and third windings connected in series with a common point connected to a mechanical ground and the respective free terminals connected to the common terminals of sending and receiving transformers.

Abstract: A communication method in an ad hoc network, including a coordinating mobile communication device, referred to as the coordinator device, and a plurality of subordinate mobile communication devices, referred to as subordinate devices, each communication device including a wireless communication module and a positioning module using a transmission of first pulses modulated in accordance with a first ultra-wide band modulation in order to determine information representing a position of said communication device. The method includes, when it is implemented by a communication device: obtaining data to be transmitted; checking a transmission capability of the wireless communication module; when the wireless communication module does not allow to transmit the data, using the positioning module to transmit said data in the form of second pulses orthogonal to the first pulses.

Abstract: A method for maximising a quantity of enabled transmission requests from a set of transmission requests in a mobile wireless network comprising a plurality of mobile nodes. Said method is implemented by a master node and activated on reception by the master node of an event belonging to a predefined set of events comprising a first type of event involving a modification to the topology of the network. The method comprises: obtaining a set of transmission demands; if the event is of the first type, implementing an optimisation procedure comprising: defining transmission rate and latency constraints; defining at least one subset of the set of transmission requests; associating each subset defined with a cost function; determining a subset of maximum-cardinality compatible with said constraints and minimising the cost function, said subset representing the transmission requests to be enabled.

Abstract: A power/data electrical coupler, designed to send over a two-wire bus or to receive therefrom data signals and to deliver to said two-wire bus or receive therefrom a power-supply potential. Such a coupler includes a transformer, a first winding of which and a second and third winding of which are connected in series with each other with a common terminal connected to a power supply line and the other two terminals to a two-wire bus. It also includes a second isolation transformer connected between said first transformer and said two-wire bus. According to the invention, said terminal common to said second and third windings is connected to said power supply line by means of a band-rejection filter rejecting one or more of the frequency bands including the resonant frequency or frequencies resulting from the association of the isolation transformer and the transformer.

Abstract: An electrical coupler includes: a sending transformer having a winding for receiving data signals and two windings connected in series with a common point and two terminals to be connected to a first wires pair of a bus to deliver the data signals at the first winding terminals to said wire pair; a receiving transformer having two windings connected in series with a common point and two terminals to be connected to a second pair of wires of said bus to receive data signals on the pair of wires and a winding for delivering said data signals; and a galvanic isolation transformer with a first winding, the terminals of which are connected to the coupler's power supply pins, and second and third windings connected in series with a common point connected to a mechanical ground and the respective free terminals connected to the common terminals of sending and receiving transformers.

Abstract: An airborne shootings detection and piloting aid equipment is disclosed for an aircraft including a multi-sensor system supplying signals representing an environment of the aircraft including at least one system supplying a signal, referred to as an LWIR/MWIR signal, representing infrared radiation lying the far infrared or mid-infrared range; piloting aid means for obtaining first piloting information including information representing obstacles present in the environment of the aircraft; and shootings detection means for obtaining second piloting information including information representing shootings in the vicinity of the aircraft, the piloting aid means and the shootings detection means using signals representing an environment of the aircraft including at least the LWIR/MWIR signal; and obtaining means for obtaining piloting aid parameters from first and second piloting information.

Abstract: A defective-pixel detection method included in an image-processing procedure, including a pixel-processing procedure applied to pixels of an image supplied by an image sensor. Each pixel is associated with a classification value representing a state of said pixel. The method includes, for each pixel: applying the pixel-processing procedure; analysing a result of the pixel-processing procedure; in the event of obtaining an unusual result representing a defect on a photosite of the image sensor that supplied said pixel, incrementing a number of detections of an unusual result for said pixel; and associating said pixel with a classification value representing a defective pixel when said number reaches a first threshold.

Abstract: A method for processing high-frequency movements in an optronic system including an image sensor functioning with a first acquisition frequency, each image obtained by the image sensor representing a scene, the method includes a step of obtaining signal values representing a movement of the scene from a high-frequency movement sensor functioning with a second acquisition frequency higher than the first acquisition frequency, a step of determining values representing a movement of an image in the course of acquisition by the image sensor from values of the signals representing the movement of the scene, and a step of transmitting the values representing the movement of the image in the course of acquisition by the image sensor to a movement compensation device so that the movement compensation device can compensate for the movement of the image in the course of acquisition by the image sensor.

Abstract: A movement detection device, including a multi-element photodiode, the multi-element photodiode comprising a plurality of pixels, referred to as megapixels, and, for at least one megapixel of the multi-element photodiode, a mask partially obscuring a sensitive zone of said megapixel, the mask consisting of a plurality of zones including at least one opaque zone and at least one transparent zone, an opaque zone being able to prevent a light beam from fully reaching portions of the sensitive zone of the megapixel corresponding to the opaque zone, a transparent zone being able to allow a light beam to reach a portion of the sensitive surface of the megapixel corresponding to the transparent zone, each opaque zone having at least one adjacent transparent zone so as to obtain an alternation of opaque zones and transparent zones in the mask.