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.

Abstract: The invention relates to a display method for an image-generation means making it possible to protect a screen of a viewing device against freezing of the image, characterized in that the image-generation means continually and alternately displays during the operation of the said viewing device a first sub-image and a second sub-image the first sub-image comprising a warning message and the second sub-image being the negative image of the first sub-image, the frequency of the display being sufficiently high to hide the warning message and when the viewing device sustains a failure causing the freezing of the image, the image-generation means permanently displays the warning message according to the last sub-image displayed on the screen. The invention applies particularly to the aviation field and more generally to any field in which a frozen image failure of a screen is critical.

Abstract: The invention relates to the field of methods for zooming onto a part of an image which consists of pixels and which represents a terrain overflown by an aircraft. It is a zoom method for zooming onto a part of an image which consists of pixels and which represents a terrain overflown by an aircraft, an image being modulated, pixel by pixel, by a shading cue representative of the relief of a terrain. The shading cue is determined by way of a computation carried out, in a reference frame of a display screen of an aircraft, pixel by pixel, on the basis of the altitudes of pixels neighboring the current pixel in the case of the unzoomed image. The method according to the invention can in particular be implemented in a cartographic accelerator card.

Abstract: The invention relates to a method of synthesizing a cartographic image consisting of pixels and representing a terrain overflown by an aircraft, the cartographic image being computed at each pixel on the basis of several cues which include a first color altimetric cue obtained on the basis of a datum of absolute altitude or relative altitude with respect to the altitude of the aircraft, of a possible cue of presence of at least one intervisibility zone and of a possible cue of presence of a forest zone, a second shading cue representative of the relief of the terrain, and a possible third color planimetric cue, the entire set of altimetric cues constituting an altimetric image and the entire set of planimetric cues constituting a planimetric image, the method comprising at least two types of mode, on the one hand a normal mode type in which, at each pixel, the shading cue modulates the altimetric cue but not the planimetric cue and on the other hand an inverted mode type in which, at each pixel, the shading c

Abstract: The invention relates to the field of methods for synthesizing an intervisibility image consisting of pixels and representing the distribution, over a terrain overflown by an aircraft, of the intervisibility zones. This is a method of synthesizing an intervisibility image consisting of pixels and representing the distribution, over a terrain overflown by an aircraft, of the zones of indirect intervisibility between the aircraft and at least one potential threat, in which, on the one hand, a danger plain color is associated with the set of zones of indirect intervisibility and, on the other hand, a safety plain color distinct from the danger plain color is associated with the set of portions of range zones of the threats that are not covered by any zone of indirect intervisibility, and, in at least one mode of the method of synthesis, said plain colors may be modulated at each pixel by a shading cue (?sha) representative of the relief of the terrain at said pixel.

Abstract: The invention relates to the field of methods for synthesizing an intervisibility image consisting of pixels and representing the distribution, over a terrain overflown by an aircraft, of the intervisibility zones. This is a method of synthesizing an intervisibility image consisting of pixels and representing the distribution, over a terrain overflown by an aircraft, of the zones of indirect intervisibility between the aircraft and at least one potential threat, in which, on the one hand, a danger plain color is associated with the set of zones of indirect intervisibility and, on the other hand, a safety plain color distinct from the danger plain color is associated with the set of portions of range zones of the threats that are not covered by any zone of indirect intervisibility, and, in at least one mode of the method of synthesis, said plain colors may be modulated at each pixel by a shading cue (?sha) representative of the relief of the terrain at said pixel.

Abstract: The invention relates to an electronic correction device for correcting the optical distortions of an optic for collimating and superposing a collimated view in the case where the display is of matrix type. The principle of the invention is to carry out these corrections at the level of the display by associating with each pixel of the display the same number of pixels of each source-image to be displayed, the addresses of the pixels of the source-images being computed from the addresses of the pixels of the display by applying the distortion function for the optic to them.

Abstract: The invention relates to the field of methods for zooming onto a part of an image which consists of pixels and which represents a terrain overflown by an aircraft.

Abstract: The invention relates to a method of synthesizing a cartographic image consisting of pixels and representing a terrain overflown by an aircraft, the cartographic image being computed at each pixel on the basis of several cues which include a first color altimetric cue obtained on the basis of a datum of absolute altitude or relative altitude with respect to the altitude of the aircraft, of a possible cue of presence of at least one intervisibility zone and of a possible cue of presence of a forest zone, a second shading cue representative of the relief of the terrain, and a possible third color planimetric cue, the entire set of altimetric cues constituting an altimetric image and the entire set of planimetric cues constituting a planimetric image, the method comprising at least two types of mode, on the one hand a normal mode type in which, at each pixel, the shading cue modulates the altimetric cue but not the planimetric cue and on the other hand an inverted mode type in which, at each pixel, the shading c

Abstract: An electronic device for multiplexing several loads to the terminals of a source of alternating electrical energy. The source(4) of alternating electrical energy is coupled by electromagnetic flux to the loads by using primary excitation windings 71, 81 and 91 connect to the terminals of the source (4) of alternating electrical energy and secondary windings respectively corresponding to the number of loads. The secondary windings are at least partially coupled to the primary winding and are each connected to the terminals of a load. The coupling is inhibited by auxiliary winding 73 which are each totally coupled with the secondary winding 72. The inhibition function is controlled in order to inhibit all the magnetic couplings except for one and this particular one changes as a function of the respective load to be coupled to the source 4 of alternating electrical energy.