Abstract: The present invention relates to an alarm management system intended to be carried onboard an aircraft. More precisely, the invention is aimed at improving the certainty level relating to the integrity of the announcements of faults or information intended for the pilot and based on voice syntheses. For this purpose, the present invention proposes a device and a method for detecting the digital origin of an analog signal providing a validity signal (VAL) enabling the voice announcements made to the pilot to be rendered secure.

Abstract: The method is for hardening a computer based on off-the-shelf components so that it resists bombardment by particles of cosmic origin encountered at high altitude and near the poles. It relates more particularly to a computer comprising a processor/bridge pair, the bridge ensuring auxiliary functions for controlling the data exchanges between the processor and a random-access memory incorporating a Hamming-type error corrector code into the information exchanged and consists in inserting between the processor/bridge pair and the random-access memory an interface device carrying out a two-way transcoding between the Hamming-type error correction code incorporated into the information exchanged by the auxiliary functions for controlling the data exchanges of the processor/bridge pair and a Reed-Solomon-type error correction code adapted to the architecture of the random-access memory.

Abstract: The present invention relates to an electronic equipment rack arrangement principle. In order to allow for the maximum use of COTS (component off the shelf) modules, or, at least, maximum use of “standardized” modules, primarily in relation to the electronic functions of said rack, the electronic equipment rack according to the invention offers a configuration in which the function modules (3) and the interface modules (8) are juxtaposed, preferably vertically, and the electronic functions handled by the function modules (3) are decoupled from the interface functions handled by the interface modules (8). Such a rack also allows for all the maintenance operations to be done through the front panel (F) of said rack, all of its component modules being made accessible from this side.

Abstract: The present invention belongs to the field of reduced-dimension computers of the ARINC 600 computer type of small and medium dimensions. The advantage of the invention is that it allows optimization of use of the volume of the computers. The surface area for accommodating electronic components on one board is greatly increased and the heat control is made easier and better.

Abstract: The present invention relates to an alarm management system intended to be carried onboard an aircraft. More precisely, the invention is aimed at improving the certainty level relating to the integrity of the announcements of faults or information intended for the pilot and based on voice syntheses. For this purpose, the present invention proposes a device and a method for detecting the digital origin of an analog signal providing a validity signal (VAL) enabling the voice announcements made to the pilot to be rendered secure.

Abstract: This housing comprises rackable electronic equipment modules (2) housed in a bay. A module (2) has both internal (12, 13) and external (45) thermal radiators cooled by natural and forced ventilation. The internal thermal radiators (12, 13) are placed in thermal contact with the hot spots of the electronic equipment placed in the module (2) via hear collectors (40, 41) connected by heat pipe (42, 43) to the external thermal radiators (45) arranged outside on the edge (44) of the module (2). The internal thermal radiators (12, 13) are sized to be sufficient to cool the electric equipment when the forced ventilation is functioning normally. The external thermal radiators (45) are sized to complement the cooling provided by the internal radiators (12, 13) should the forced ventilation be lost.

Abstract: The present invention belongs to the field of reduced-dimension computers of the ARINC 600 computer type of small and medium dimensions. The advantage of the invention is that it allows optimization of use of the volume of the computers. The surface area for accommodating electronic components on one board is greatly increased and the heat control is made easier and better.

Abstract: The method is for hardening a computer based on off-the-shelf components so that it resists bombardment by particles of cosmic origin encountered at high altitude and near the poles. It relates more particularly to a computer comprising a processor/bridge pair, the bridge ensuring auxiliary functions for controlling the data exchanges between the processor and a random-access memory incorporating a Hamming-type error corrector code into the information exchanged and consists in inserting between the processor/bridge pair and the random-access memory an interface device carrying out a two-way transcoding between the Hamming-type error correction code incorporated into the information exchanged by the auxiliary functions for controlling the data exchanges of the processor/bridge pair and a Reed-Solomon-type error correction code adapted to the architecture of the random-access memory.

Abstract: The present invention relates to an electronic equipment rack arrangement principle. In order to allow for the maximum use of COTS (component off the shelf) modules, or, at least, maximum use of “standardized” modules, primarily in relation to the electronic functions of said rack, the electronic equipment rack according to the invention offers a configuration in which the function modules (3) and the interface modules (8) are juxtaposed, preferably vertically, and the electronic functions handled by the function modules (3) are decoupled from the interface functions handled by the interface modules (8). Such a rack also allows for all the maintenance operations to be done through the front panel (F) of said rack, all of its component modules being made accessible from this side.

Abstract: The disclosure relates to the acquisition of a binary analog signal at input of a digital integrated circuit after its range of voltage variation has been matched with that acceptable by the digital integrated circuit by means of a resistive divider bridge. It is usual to define the architecture of an ASIC digital integrated circuit on the basis of libraries of pre-characterized cells. The disclosed device is designed to increase the possibilities of choice open to the integrated circuit designer, in enabling him to one pre-characterized cell of a Schmitt trigger for its top switching threshold and another for its bottom switching threshold. It consists of a circuit comprising, at input, a bank of Schmitt triggers of different types, followed by a discrete-rendering logic circuit deducing the logic state of the binary input analog signal of the combination of the output states of the input Schmitt triggers.