Abstract: The invention relates to a method and system for validating the graphical generation of symbols to display, comprising a graphical generation of symbols to display to form a video stream comprising a plurality of rasters, comprising a pixel generation, with the attribution of at least one associated symbol attribute for each pixel contributing to one of said symbols. The method comprises, for at least one raster of said video stream: obtaining at least one reference symbol attribute associated with at least one symbol to be monitored; identifying pixels having the reference symbol attribute(s), during a scan of the pixels of said raster in a predetermined course direction, these pixels contributing to said at least one symbol to be monitored, and calculating associated characteristic information; validating the display of the symbol(s) to be monitored based on the calculated characteristic information and of source information associated with said symbols to display.

Abstract: This method for generating graphic surfaces to be displayed on a screen is implemented by a graphics processor and comprises: generating a first graphic surface to be displayed on the screen; switching between generating the first graphic surface and generating a second graphic surface; generating the second graphic surface to be displayed on the screen; the switching including saving a graphic execution context of the first graphic surface; and if the generation of the second graphic surface had been interrupted during a preceding switch with the generation of another graphic surface, restoring a graphic execution context of the second graphic surface, the restored context having been saved during said preceding switch.

Abstract: The invention relates to a method and system for validating the graphical generation of symbols to display, comprising a graphical generation of symbols to display to form a video stream comprising a plurality of rasters, comprising a pixel generation, with the attribution of at least one associated symbol attribute for each pixel contributing to one of said symbols. The method comprises, for at least one raster of said video stream: obtaining at least one reference symbol attribute associated with at least one symbol to be monitored; identifying pixels having the reference symbol attribute(s), during a scan of the pixels of said raster in a predetermined course direction, these pixels contributing to said at least one symbol to be monitored, and calculating associated characteristic information; validating the display of the symbol(s) to be monitored based on the calculated characteristic information and of source information associated with said symbols to display.

Abstract: The object of the invention is a method for securing a vehicle comprising a critical system including a display, the method comprising the following steps: acquisition of at least one video stream to be shown on the display; calculation of a brightness level of the or each video stream; if the brightness level of the video stream(s) meets a predefined criterion, then the video stream is displayed on the display; otherwise, display of the video stream is inhibited.

Abstract: This graphics processor comprises: a generating module configured to generate at least one set of pixel(s) to be displayed; a display module connected to the generating module, the display module being configured to display each set of pixel(s) on a screen; and a monitoring unit integrated into the generating module, the monitoring unit being configured to determine a list of graphic context information item(s) for at least one pixel and to deliver said list to an external electronic supervision device, able to be connected to the graphics processor.

Abstract: This method for generating graphic surfaces to be displayed on a screen is implemented by a graphics processor and comprises: generating a first graphic surface to be displayed on the screen; switching between generating the first graphic surface and generating a second graphic surface; generating the second graphic surface to be displayed on the screen; the switching including saving a graphic execution context of the first graphic surface; and if the generation of the second graphic surface had been interrupted during a preceding switch with the generation of another graphic surface, restoring a graphic execution context of the second graphic surface, the restored context having been saved during said preceding switch.

Abstract: This graphics processor comprises: a generating module configured to generate at least one set of pixel(s) to be displayed; a display module connected to the generating module, the display module being configured to display each set of pixel(s) on a screen; and a monitoring unit integrated into the generating module, the monitoring unit being configured to determine a list of graphic context information item(s) for at least one pixel and to deliver said list to an external electronic supervision device, able to be connected to the graphics processor.

Abstract: Techniques for generating images with information windows including variable display priorities, the technique including selecting pixels of active windows at a given area of the image and reconstituting an image on the basis of the pixels of the selected windows. The techniques ensure mixing of the pixels and transparency between windows. The techniques apply to aircraft flight displays and any other image generating devices.

Abstract: A display device that comprises a flag memory containing state flags of pixel areas of the image is provided. The display device comprises a display screen and a graphical generation unit implementing at least three functions for displaying an image, i.e. a first data erasure function, a second function for generating an image comprised of pixels in a first memory, and a third function for displaying the image by reading the pixels in said memory and controlling the screen, in which an image is divided into a plurality of separate pixel areas and in that each area is addressed by a flag, wherein the display device further includes a memory that stores the flag states so that the graphical generation unit can execute the display function on the basis of the flag states. The generation of images having a predominantly uniform background can, in particular, be used for application in aeronautics.

Abstract: Techniques for generating images with information windows including variable display priorities, the technique including selecting pixels of active windows at a given area of the image and reconstituting an image on the basis of the pixels of the selected windows. The techniques ensure mixing of the pixels and transparency between windows. The techniques apply to aircraft flight displays and any other image generating devices.

Abstract: A display device that comprises a flag memory containing state flags of pixel areas of the image is provided. The display device comprises a display screen and a graphical generation unit implementing at least three functions for displaying an image, i.e. a first data erasure function, a second function for generating an image comprised of pixels in a first memory, and a third function for displaying the image by reading the pixels in said memory and controlling the screen, in which an image is divided into a plurality of separate pixel areas and in that each area is addressed by a flag, wherein the display device further includes a memory that stores the flag states so that the graphical generation unit can execute the display function on the basis of the flag states. The generation of images having a predominantly uniform background can, in particular, be used for application in aeronautics.