Abstract: The present invention relates to a communication system comprising a removable device comprising a display screen, and a docking device apt to receive the removable device. Each of the removable device and the docking device comprises an extreme high frequency communication chip, the communication chips being positioned opposite each other when the removable device is received in the docking device and are apt to exchange digital data between each other. The display screen is apt to display images from the digital data sent by the communication chip of the docking device to the communication chip of the removable device.

Abstract: The general field of the invention is that of electronic mission preparation systems, notably for aircraft pilots. The system comprises a removable touch tablet and an associated connection support or docking station intended to be mounted on an aircraft instrument panel. The connection support comprises a mechanical support comprising translational guiding means and a pivoting pallet comprising mechanical means for rapidly locking and unlocking the touch tablet This connection support also comprises a memory card and electrical connectors. These provisions together ensure both the electrical and mechanical connections of the tablet to the avionics system via the connection support.

Abstract: The general field of the invention is that of the display devices that comprise an active liquid crystal matrix of twisted nematic type. The matrix comprises a set of pixels, a set of rows and of columns and an electronic control device. Each pixel is controlled by a transistor. The voltage applied to each control row is either a switch-on voltage VG_on sufficient to switch on the transistors, or a switch-off voltage VG_off sufficient to switch off the transistors. The voltage applied GMA to each column is dependent on the predetermined optical transmission of the pixel. The display device comprises means for detecting the correct operation of the electronic control device. In case of detection of incorrect operation, the display device comprises cut-off means arranged to force to zero the switch-off voltages VG_off of the rows and the GMA voltages of the columns, so that the transmission of all the pixels of the first set is minimum.

Abstract: The general field of the invention is that of electronic mission preparation systems, notably for aircraft pilots. The system comprises a removable touch tablet and an associated connection support or docking station intended to be mounted on an aircraft instrument panel. The connection support comprises a mechanical support comprising translational guiding means and a pivoting pallet comprising mechanical means for rapidly locking and unlocking the touch tablet. This connection support also comprises a memory card and electrical connectors. These provisions together ensure both the electrical and mechanical connections of the tablet to the avionics system via the connection support.

Abstract: The general field of the invention is that of the display devices that comprise an active liquid crystal matrix of twisted nematic type. The matrix comprises a set of pixels, a set of rows and of columns and an electronic control device. Each pixel is controlled by a transistor. The voltage applied to each control row is either a switch-on voltage VG_on sufficient to switch on the transistors, or a switch-off voltage VG_off sufficient to switch off the transistors. The voltage applied GMA to each column is dependent on the predetermined optical transmission of the pixel. The display device comprises means for detecting the correct operation of the electronic control device. In case of detection of incorrect operation, the display device comprises cut-off means arranged to force to zero the switch-off voltages VG_off of the rows and the GMA voltages of the columns, so that the transmission of all the pixels of the first set is minimum.