Abstract: The monitoring system (1) is used for detecting an incapacitation of the pilot of an aircraft, said aircraft being equipped with a piloting device (40) which can be actuated manually by the pilot. Same includes: at least one pressure sensor integrating a contact sensor (11, 12) mounted on the surface of the piloting device (40), so as to generate an elementary indicator when a pressure exerted by the pilot on the piloting device is adapted to the use of the piloting device; and a computing unit (2) programmed for processing the elementary indicator delivered by the pressure sensor and for determining a current state of the pilot and, when said current state corresponds to an incapacitation of the pilot, for issuing an alarm.

Abstract: An electronic system for monitoring the state of awareness of an operator in a control station of an aircraft. The monitoring system includes a module for receiving a datum from at least two sensors onboard the aircraft, at least one of the sensors being called a worn sensor being in physical contact with the operator and at least one of the sensors being called an off-set sensor being at a distance from the operator, a processing module configured for extracting from each datum at least one parameter representative of the state of awareness of the operator, a fusion module configured for receiving the representative parameters and implementing a machine learning method for determining, depending on the representative parameters, whether the operator is in a nominal or an altered state of awareness.

Abstract: The display system has a three-dimensional and curved display surface made up of a single electronic display screen or several joined electronic display screens, the display surface having at least one main zone dedicated to a pilot and suitable for being located in front of said pilot, the main zone being substantially planar or concave, and at least one lateral zone associated with each main zone, each lateral zone being concave and laterally extending the associated main zone.

Abstract: The display system has a non-planar three-dimensional display surface defined by an electronic display screen or a plurality of contiguous electronic display screens, the display surface having at least one curved display area having the form of a developable surface.

Abstract: The display system has a three-dimensional and curved display surface made up of a single electronic display screen or several joined electronic display screens, the display surface having at least one main zone dedicated to a pilot and suitable for being located in front of said pilot, the main zone being substantially planar or concave, and at least one lateral zone associated with each main zone, each lateral zone being concave and laterally extending the associated main zone.

Abstract: The general field of the invention is that of display systems comprising means for generating graphic symbols and an associated semitransparent display device. The display device according to the invention has two overlaid semitransparent flat display screens, one passive and the other active, each symbol displayed on the semitransparent display device comprising a first representation and a second representation. The first representation is displayed on the first display screen with a low transmission rate for the light and with a predetermined first size. The second representation is displayed on the second display screen in the same place as the first representation, with a luminance and a predetermined second size that is smaller than the first size so that the second representation is overlaid on the first representation and the displayed symbol appears bright with a dark border.

Abstract: The general field of the invention is that of display systems comprising an electronic calculator containing first image generation means and an associated semi-transparent display device, said display device intended to be arranged in front of an outside landscape. The display device according to the invention consists of two overlaid semi-transparent flat display screens, a photo-sensitive sensor and a position detection system. The first display screen is passive, its transmission rate being controlled by the first image generation means, the second display screen is active, its light emission being controlled by the first image generation means. The image generated is displayed either on the first display screen, or on the second display screen as a function of the outside landscape luminance information output by the photo-sensitive sensor and the position detection.

Abstract: The general field of the invention is that of display systems comprising an electronic calculator containing first image generation means and an associated semi-transparent display device, said display device intended to be arranged in front of an outside landscape. The display device according to the invention consists of two overlaid semi-transparent flat display screens, a photo-sensitive sensor and a position detection system. The first display screen is passive, its transmission rate being controlled by the first image generation means, the second display screen is active, its light emission being controlled by the first image generation means. The image generated is displayed either on the first display screen, or on the second display screen as a function of the outside landscape luminance information output by the photo-sensitive sensor and the position detection.

Abstract: The general field of the invention is that of display systems comprising means for generating graphic symbols and an associated semitransparent display device. The display device according to the invention has two overlaid semitransparent flat display screens, one passive and the other active, each symbol displayed on the semitransparent display device comprising a first representation and a second representation. The first representation is displayed on the first display screen with a low transmission rate for the light and with a predetermined first size. The second representation is displayed on the second display screen in the same place as the first representation, with a luminance and a predetermined second size that is smaller than the first size so that the second representation is overlaid on the first representation and the displayed symbol appears bright with a dark border.

Abstract: The general field of the invention is that of methods providing a secure control for an appliance by means of a visualization device having a tactile surface capable of detecting several simultaneous touches. The method according to the invention comprises: A first step of displaying on the visualization device a first symbol representing the control in a locked state; A second step of displaying, after a first touch on the tactile surface, a second symbol representing an “unlocking” gesture; A third step of performing said “unlocking” gesture; A fourth step of validating the command by two simultaneous touches at the sites of the first and second symbols; A fifth step of changing the appearance of the first symbol representing the control to be activated in an unlocked and activated state.

Abstract: A demodulator for a DPSK-modulated optical signal of bit frequency 1/T, comprises an interferometric structure (3) having an input port (1) for receiving the DPSK-modulated optical signal, an output port (8), and first and second arms (4, 5) extending from said input port (1) to said output port (8), adjustment means (5, 7, 14, 16) for fine tuning a propagation delay difference of said two arms (4, 5) in a range comprising T, an optical/electrical converter (10) connected to the output port (8) of the interferometric structure (3), and a bandpass filter (12) connected to an output of the optical/electrical converter (10), the passband of which does not include 1/T. The adjustment means (5, 7, 14, 16) is adapted to tune the propagation delay according to the output power level of the bandpass filter (12).

Abstract: The general field of the invention is that of optical touch-sensitive systems mounted above areas of display surfaces. The system comprises at least two light sources arranged to produce above a display surface a “luminous layer” covering said surface, a first imager and a second imager the optical fields of which cover the surface. The sources are separate from the imagers. When a first object is situated above the surface, first and second luminous images of said object are captured by the first imager and the second imager, the system including analysis means enabling by triangulation of the known positions of the first and second luminous images, determination of the position of this first object above the display surface. In more elaborate configurations, the system comprises a plurality of sources of illumination and imagers enabling coverage of complex surfaces, enabling “multi-touch” detection or securing the detection functions.

Abstract: A display system includes at least two devices for projecting images and a single screen, each projection device including an image source and projection optics arranged so as to project the image delivered by the image source onto a display region of the screen so that the various images projected from various image sources form a single image without obvious discontinuities, said display system having a device for monitoring and servo-controlling the alignment of the various images.

Abstract: An optical amplifier assembly for submarine applications. The optical amplifier assembly comprises: a first and a second double stage fiber amplifier with respective first and second fiber amplifiers for amplifying optical signals (OS, OS?) each propagated on a respective optical fibre, said optical fibres being operated in opposite operating directions (W-E, E-W), and a common pump source comprising a plurality of pump light sources, the common pump source being coupled via a coupler as a co-propagating pump to the first and second fiber amplifiers of the first and second double stage fiber amplifiers. The proposed optical amplifier assembly further comprises a gain flattening filter between the two fiber amplifiers of the first and second double stage fiber amplifiers. Thus the proposed optical amplifier assembly presents an increased efficiency with respect to an output power at a constant pump power and allows to adjust the pump power for maintaining a given output power without excessive NF degradation.

Abstract: An optical wavelength division multiplex transmission system (1) for transmitting optical signals (S) on a plurality of wavelength channels has a transmitting terminal (2) and a receiving terminal (3) interconnected by a transmission line (5) with at least one, preferably a plurality of optical amplifiers (4). Each of the optical amplifiers (4) comprises a Raman amplifier (6) with at least one pump light source (8.1-8.3) for pumping the transmission line (5) upstream the optical amplifier (4). It is proposed that each optical amplifier (4) comprises a single tap coupler (11) arranged downstream of the Raman amplifier (6). Optical receiving and transmitting means (14, 15) may be connected to the transmission line (5) via the tap coupler (11) for communication of data (TX, Di) between at least the transmitting terminal (2) and the optical amplifiers (4) on an optical supervisory channel (OSC) with a given wavelength.

Abstract: An optical amplifier assembly for submarine applications. The optical amplifier assembly comprises: a first and a second double stage fibre amplifier with respective first and second fibre amplifiers for amplifying optical signals (OS, OS') each propagated on a respective optical fibre, said optical fibres being operated in opposite operating directions (W-E, E-W), and a common pump source comprising a plurality of pump light sources, the common pump source being coupled via a coupler as a co-propagating pump to the first and second fibre amplifiers of the first and second double stage fibre amplifiers. The proposed optical amplifier assembly further comprises a gain flattening filter between the two fibre amplifiers of the first and second double stage fibre amplifiers. Thus the proposed optical amplifier assembly presents an increased efficiency with respect to an output power at a constant pump power and allows to adjust the pump power for maintaining a given output power without excessive NF degradation.

Abstract: An optical wavelength division multiplex transmission system (1) for transmitting optical signals (S) on a plurality of wavelength channels has a transmitting terminal (2) and a receiving terminal (3) interconnected by a transmission line (5) with at least one, preferably a plurality of optical amplifiers (4). Each of the optical amplifiers (4) comprises a Raman amplifier (6) with at least one pump light source (8.1-8.3) for pumping the transmission line (5) upstream the optical amplifier (4). It is proposed that each optical amplifier (4) comprises a single tap coupler (11) arranged downstream of the Raman amplifier (6). Optical receiving and transmitting means (14, 15) may be connected to the transmission line (5) via the tap coupler (11) for communication of data (TX, Di) between at least the transmitting terminal (2) and the optical amplifiers (4) on an optical supervisory channel (OSC) with a given wavelength.

Abstract: A demodulator for a DPSK-modulated optical signal of bit frequency 1/T, comprises an interferometric structure (3) having an input port (1) for receiving the DPSK-modulated optical signal, an output port (8), and first and second arms (4, 5) extending from said input port (1) to said output port (8), adjustment means (5, 7, 14, 16) for fine tuning a propagation delay difference of said two arms (4, 5) in a range comprising T, an optical/electrical converter (10) connected to the output port (8) of the interferometric structure (3), and a bandpass filter (12) connected to an output of the optical/electrical converter (10), the passband of which does not include 1/T. The adjustment means (5, 7, 14, 16) is adapted to tune the propagation delay according to the output power level of the bandpass filter (12).