Abstract: A method for guidance and for assisting in following a trajectory for velocity-vector piloting of an aircraft includes a step of calculating, at all times, lateral and vertical offsets of the current position of the aircraft from a target trajectory, estimated by a flight management system, and then a joining heading and a joining gradient for the aircraft to join the trajectory depending on these offsets; and a following fourth step of displaying, in head-up or head-down form, a consistent guidance symbol centered on the calculated joining heading and the calculated joining gradient for joining the trajectory, on a piloting screen showing a velocity vector. The fourth step may display, in addition to the guidance symbol, one or more items of information anticipating the next trajectory break.

Abstract: The present invention relates to a visualization method of the attitude of an aircraft, comprising the formation of a pitch scale (E) defining a lower border and an upper border, and including: to visualize the nil pitch angle of the aircraft, a zero graduation on the lower border and the upper border; to visualize the negative pitch angles of the aircraft, straight parallel graduations forming at least two groups converging toward one another with the approach of the zero graduation from the lower border; and to visualize the positive pitch angles of the aircraft, curved graduations, the curvature of which increases moving away from the zero graduation toward the upper border.

Abstract: The present invention relates to a method for displaying traffic in the vicinity of a reference aircraft in a non-compliant display zone, and comprising the following steps: acquisition (110) of a position of one of the surrounding aircraft and determination of a relative two-dimensional position of the surrounding aircraft relative to the reference aircraft in a real plane and at a relative altitude; associating (120) a traffic symbol with the surrounding aircraft; determination (130) of a two-dimensional position of the reference aircraft in a virtual plane representative of the real plane; displaying (140) in perspective the virtual plane and the traffic symbol at the distance of the two-dimensional position of the reference aircraft in this virtual plane.

Abstract: The general field of the invention is that of head viewing systems for aircraft comprising a head support, a viewing device, a detection of posture of said head support, means for detecting the current heading of an aircraft and means for graphically generating said heading. The system according to the invention comprises means of control, display and selection of headings arranged so as: to display, in response to a first command, a second so-called setpoint heading and a third heading termed a “support heading” corresponding to the direction of the head support in a terrestrial reference frame, said direction given by the information arising from the detection of posture of said head support and the means for detecting the current heading; to replace, in response to a second command, said second heading by said third heading, said third heading thus becoming the new heading setpoint.

Abstract: The present invention relates to a visualization method of the attitude of an aircraft, comprising the formation of a pitch scale (E) defining a lower border and an upper border, and including: to visualize the nil pitch angle of the aircraft, a zero graduation on the lower border and the upper border; to visualize the negative pitch angles of the aircraft, straight parallel graduations forming at least two groups converging toward one another with the approach of the zero graduation from the lower border; and to visualize the positive pitch angles of the aircraft, curved graduations, the curvature of which increases moving away from the zero graduation toward the upper border.

Abstract: A method for the three-dimensional representation of the trajectory of an aircraft in flight implemented in a navigation system of an aircraft is provided. The flight plan of the aircraft comprises imposed georeferenced trajectories and predicted non-georeferenced trajectories. When the trajectory of the aircraft is dependent on a non-georeferenced flight setpoint, the three-dimensional representation method is an iterative process comprising the following steps: computing a predicted trajectory arising from at least one computed trajectory extending over a determined distance or duration; computing a smoothed trajectory from the predicted trajectory in order to obtain a resulting trajectory; computing a displayed trajectory, the trajectory being equal to the resulting trajectory corrected for constant deviations or deviations depending on the application of setpoints from the flight director; and displaying the displayed trajectory.

Abstract: A method of visualization of the traffic around a reference aircraft including acquiring the actual position of a surrounding aircraft, delimiting part of the airspace around this position by a current three-dimensional contour, visualizing the current three-dimensional contour, tracking the actual position of the surrounding aircraft, and when this position is outside the current three-dimensional contour: delimiting part of the airspace around the actual position of the surrounding aircraft by a new current three-dimensional contour, and visualizing the current three-dimensional contour.

Abstract: The present invention relates to a method for displaying traffic in the vicinity of a reference aircraft in a non-compliant display zone, and comprising the following steps: acquisition (110) of a position of one of the surrounding aircraft and determination of a relative two-dimensional position of the surrounding aircraft relative to the reference aircraft in a real plane and at a relative altitude; associating (120) a traffic symbol with the surrounding aircraft; determination (130) of a two-dimensional position of the reference aircraft in a virtual plane representative of the real plane; displaying (140) in perspective the virtual plane and the traffic symbol at the distance of the two-dimensional position of the reference aircraft in this virtual plane.

Abstract: A method for the three-dimensional synthetic representation of the trajectory of an aircraft in flight being implemented in a flight and navigation system of an aircraft comprising a display system allowing synthetic images to be displayed, the flight plan of the aircraft comprises a predicted trajectory dependent on a non-georeferenced flight setpoint, the display of the predicted trajectory taking the form of a path represented by two limits separated by a determined width. The path comprises two branches, each branch positioned on the side of one of the two limits, each branch represented by a straight segment whose origin is a point located on the path at the current time and whose terminus is a point located at a determined distance away from the point of origin, the slope of the straight segment representative of the tangent to the predicted trajectory at the current time.

Abstract: A method for three-dimensional graphic representation of the outside landscape in an on-board display system for aircraft comprises a graphical computer and a display screen. The graphic representation is computed to a visibility distance. In the method the zero pitch line of the aircraft forms, with the real horizon line, a first angle, the line representing the limit of the visibility distance forming, with the real horizon line, a second angle, in a first step, the graphical computer determines the maximum visibility distance such that the difference between the first angle and the second angle remains less than a determined value; in a second step, the graphical computer determines the visibility distance as a function of the maximum visibility distance, of the maximum altitude of the relief of the local environment and of the flight phase.

Abstract: The general field of the invention is that of synthetic vision systems for a vehicle, said vehicle having a particular navigation direction. The system in accordance with the invention includes at least: a cartographic database representative of the terrain travelled over by the vehicle, means for geolocation of said vehicle, electronic means for computing a representation of the principal parameters of said vehicle; graphic generator means for generating a three-dimensional synthetic representation of said terrain; and a display device displaying said three-dimensional synthetic representation in a particular field of view (FOV) and in a particular display direction, means for modifying the display direction to a direction different from the particular navigation direction of the vehicle, said modification means being manual or automatic, the display direction then being a function of a piloting or navigation parameter.

Abstract: The general field of the invention is that of methods for three-dimensional conformal representation of a terrain. The method is used in a piloting and navigation assistance system of an aircraft. The assistance system comprises a navigation system, a cartographic database, electronic calculation means a meteorological database and a display system allowing the superimposition of synthetic images on the exterior. The method comprises the following steps: Step 1: Calculation, for a determined position of the vehicle, of the terrain perceptible through the display system; Step 2: Selection of a part of the said terrain as a function of a distance or of an altitude or of a range of altitudes; Step 3: Calculation of a three-dimensional conformal cartographic representation of the said selected part of the terrain; and Step 4: Display of the said cartographic representation by the display system.

Abstract: A navigation aid information display device of an aircraft and primary flight display for an aircraft are disclosed. In one aspect, the navigation aid information display system includes a display screen including at least one first display area configured to display a first altitude scale including graduations, the current altitude of the aircraft on the first scale, and set altitude value. The graduations of the first scale are distributed on an arc of a first disc including a first needle centered in the disc and the first needle is configured to indicate the current altitude on the first scale. The distribution of the graduations on the arc is nonlinear and symmetrical relative to a graduation corresponding to the set altitude value and defines extension graduations decreasing from the set altitude value.

Abstract: The general field of the invention is that of methods of representing a cartographic image in a geolocated synthetic vision system for vehicles, said system including a cartographic database, geolocation means, graphic generation means enabling generation of a two-dimensional or three-dimensional synthetic view of said terrain, and a display device. In the method in accordance with the invention, the angular position of each point of the synthetic view is known with an angular error depending on the distance of said vehicle and the accuracy of geolocation of said vehicle, if said angular error is less than or equal to a predetermined angular tolerance, the point is represented in a standard representation mode and if said angular error is greater than a predetermined angular tolerance, the point is represented in an uncertainty representation mode different from the standard representation mode. The applications are preferably aeronautical.

Abstract: The field of the invention is that of viewing systems comprising means for generating images of a preset object and a viewing device comprising a semitransparent projection screen on which said images are formed. The viewing system according to the invention comprises a piece of eyewear comprising two eyeglasses, the first eyeglass transmitting said images and the second not transmitting them, both eyeglasses transmitting the exterior landscape. The first eyeglass may be passively obturated via spectral selection or polarization or actively via sequential selection.

Abstract: The general field of the invention is that of devices for display and control of setpoints for automatic piloting for aircraft, configured to display the setpoints of speed, heading, climb slope and altitude. The various setpoints are displayed in the form of a graphical representation comprising: wheels graduated in speed and in altitude indicating the aircraft setpoint values; a circular heading rose, graduated and centered on a first symbol representing the aircraft, the heading setpoint being indicated by a second symbol representing the heading to be followed by the aircraft and disposed around the perimeter of the heading rose; and a vertical sectional view comprising a graduated semicircle centered on a third symbol representing the aircraft, the slope setpoint being indicated by a fourth symbol representing the slope to be followed by the aircraft and disposed around the perimeter of the semicircle.

Abstract: An aircraft guidance system for assisting in airport navigation includes: at least one airport database comprising topology data of an airport, called airport DB; at least one configuration database comprising aircraft configuration data and the position of a guidance point; a positioning system delivering aircraft kinematic and attitude parameters; at least one computer generating a 2D view of the representation of the airport notably comprising navigation indications and a representation of the aircraft; and at least one display for displaying the representation of the airport. In the system, a first symbol is generated on the display indicating the position of an early guidance point, corresponding to the position of the guidance point at a future time.

Abstract: An aircraft guidance system for assisting in airport navigation includes: at least one airport database comprising topology data of an airport, called airport DB; at least one configuration database comprising aircraft configuration data and the position of a guidance point; a positioning system delivering aircraft kinematic and attitude parameters; at least one computer generating a 2D view of the representation of the airport notably comprising navigation indications and a representation of the aircraft; and at least one display for displaying the representation of the airport. In the system, a first symbol is generated on the display indicating the position of an early guidance point, corresponding to the position of the guidance point at a future time.

Abstract: The visualization device comprising computation means, display means including at least one prohibited zone and a system for guiding a pointer is characterized in that the pointer can remain immobile in the prohibited zone only for a limited duration, the pointer being automatically directed toward the outside of the prohibited zone after this limited duration.

Abstract: The general field of the invention is that of the viewing devices used for the management of complex systems. The viewing device comprises the following functionalities: the items of information of one and the same type are placed in a given plane; the various planes are presented in superposition on the viewing screen; the device comprises control means making it possible to select any one of said planes; the selected plane is displayed in the foreground; the unselected planes are displayed in the background, the intrinsic visibility of the items of information of said unselected planes being substantially diminished.