Thales

Laurent Jardin

Jean-René Verbeque

Alexandre Fine

Yves Sontag

Nicolas Levasseur

David Houlbert

Nicolas Dubois

Frederic Sanson

Erick Coppolino

Jean-Rene Verbeque

A resource sharing controller adapted for operating in a computer platform further comprising a data storage medium and software applications comprising access commands to the storage medium, adapted, as a function of a respective portion allocated to each application, of a maximum access capacity to the storage medium, as a function of a list of next commands of access to the storage medium of each application and further of the theoretical maximum performance times of said commands, for selecting, for each application and for a next temporal cycle for access to the storage medium, the next commands to be implemented and for successively distributing, during said next temporal cycle, the access to each application for the implementation of said selected commands.

Resource sharing controller of a computer platform and associated resource sharing method

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.

Display device and method for optimizing the memory bandwith

The field of the invention is that of transmission interfaces for synchronous digital input signals composed of bits transmitted in series at a frequency of transmission equal to a first integer multiple M of a first clock frequency. The interface according to the invention comprises at least one deserializer operating in over-sampling mode and supplying digital output samples of each bit in parallel. The output samples are transmitted at a second clock frequency, integer multiple N of a third frequency. The third frequency is substantially equal to the first frequency. Each sampled bit is substantially composed of N samples. The interface has an electronic device for frequency-locking the third frequency onto the first clock frequency. The device has means for counting the number of samples composing each sampled bit. The device also has incrementation-decrementation means for the third clock frequency configured in such a manner that the third clock frequency is increased when the number of samples is less than the integer multiple N and decreases when the number of samples is greater than N.

Synchronous digital data transmission interface

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 cue modulates the planimetric cue but not the altimetric cue, and the cartographic image being obtained, in a normal mode type on the basis of the modulated altimetric image and of the planimetric image, in an inverted mode type on the basis of the altimetric image and of the modulated planimetric image.

Method of synthesizing a cartographic imagery

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 (&#x3b1;sha) representative of the relief of the terrain at said pixel. The method according to the invention may in particular be implemented in a cartographic accelerator card.

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Saint Jean d'Illac, France

Laurent Jardin