Abstract: The invention relates to a device (1) comprising a set (2) of information sources for determining the active values of a plurality of parameter of an aeroplane, calculating means (3) for determining, by means of said active values, a first position corresponding to a position which is extrapolated from the nose of the aeroplane following a particular time interval from the current instant. The inventive device also comprises a database (5) provided with at least one pre-determined unauthorized zone of the airport, comparison means (6) for comparing said first position to said pre-determined unauthorized zone of the airport, and warning means (9) for emitting at least one warning signal if the first position is located in the unauthorized zone.

Abstract: The invention relates to a system comprising a display device displaying, on a cockpit pilot display unit (7), a set of indications (10) containing an aeroplane symbol (8) which illustrates the position of the aeroplane and a map part (9) which represents the airport and moves in relation to the aeroplane symbol (8) according to the current position of the aeroplane in the airport, the aeroplane symbol (8) being fixed on the cockpit pilot display unit (7) in a centered position (12) in a standard display. The inventive system also comprises actuating means for deactivating the standard display in such a way as to enable the aeroplane symbol (8) to be displaced on the cockpit pilot display unit (7), and actuating means for controlling a temporary displacement of the set of indications (10) on the cockpit pilot display unit (7) in such a way that the aeroplane symbol (8) displayed moves away from the centered position (12).

Abstract: Method and device for assisting in the navigation of an airplane on the ground at an airport. The device (1) comprises means (14) for transmitting an alarm signal, at least if an airplane position is not on a routing zone of the airport or if the orientation bearing-wise of the airplane on this routing zone does not correspond to a particular traffic direction.

Abstract: This invention relates to an MSM type photo-detection device designed to detect incident light and comprising reflecting means (2) superposed on a support (1), to form a first mirror for a Fabry-Pérot type resonant cavity, a layer of material (3) that does not absorb light, an active layer (4) made of a semiconducting material absorbing incident light and a network (5) of polarization electrodes collecting the detected signal. The electrodes network is arranged on the active layer and is composed of parallel conducting strips at a uniform spacing at a period less than the wavelength of incident light, the electrodes network forming a second mirror for the resonant cavity, the optical characteristics of this second mirror being determined by the geometric dimensions of the said conducting strips. The distance separating the first mirror from the second mirror is determined to obtain a Fabry-Pérot type resonance for incident light between these two mirrors.

Abstract: Device for photodetection with a vertical metal semiconductor microresonator and procedure for the manufacture of this device. According to the invention, in order to detect an incident light, at least one element is formed over an insulating layer (2) that does not absorb this light, including a semiconductor material (6) and at least two electrodes (4) holding the element, with the element and electrode unit being suitable for absorbing this light and designed to incease the light intensity with respect to the incident light, in particular by making a surface plasmon mode resonate between the unit interfaces with the layer and the propagation medium for the incident light, with the resonance of this mode taking place in teh interface between the element and atleast one of the electrodes, with this mode being excited by the component of the magnetic field of the light, parallel to the electrodes. Application for optical telecommunications.

Abstract: Device for photodetection with a vertical metal semiconductor microresonator and procedure for the manufacture of this device.