METHODS AND SYSTEMS FOR GENERATING EN-ROUTE VISIBLE TERRAIN DISPLAYS
First Claim
1. A method of displaying an en-route visible terrain display for an aircraft comprising:
- representing each pixel of a terrain display using a geographical location and an elevation above the location, each pixel further represented using at least one of a color value and a grayscale value;
receiving a minimum elevation value;
setting the at least one of a color value and a grayscale value of the pixels represented by an elevation value less than the received minimum elevation value to a uniform value; and
displaying the en-route visible terrain display such that pixels representing terrain that includes an elevation value less than the minimum elevation value are displayed with the uniform value such that non-terrain-impacted, primary-navigation areas of the display are more easily readable.
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Accused Products
Abstract
Methods and systems for displaying an en-route visible terrain display for an aircraft are provided. The method includes representing each pixel of a terrain display using a geographical location and an elevation above the location, each pixel further represented using at least one of a color value and a grayscale value, receiving a minimum elevation value, setting the at least one of a color value and a grayscale value of the pixels represented by an elevation value less than the received minimum elevation value to a uniform value, and displaying the en-route visible terrain display such that pixels representing terrain that includes an elevation value less than the minimum elevation value are displayed with the uniform value such that non-terrain-impacted, primary-navigation areas of the display are more easily readable.
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Citations
21 Claims
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1. A method of displaying an en-route visible terrain display for an aircraft comprising:
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representing each pixel of a terrain display using a geographical location and an elevation above the location, each pixel further represented using at least one of a color value and a grayscale value; receiving a minimum elevation value; setting the at least one of a color value and a grayscale value of the pixels represented by an elevation value less than the received minimum elevation value to a uniform value; and displaying the en-route visible terrain display such that pixels representing terrain that includes an elevation value less than the minimum elevation value are displayed with the uniform value such that non-terrain-impacted, primary-navigation areas of the display are more easily readable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A display system for an aircraft comprising:
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an en-route visible terrain display screen configured to display a en-route visible terrain display representative of an area being traversed by the aircraft; and a monochromatic overlay on the en-route visible terrain display screen displayed in areas of the en-route visible terrain display representative of an elevation less than a selectable minimum elevation value. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A situational awareness system including an en-route visible terrain display comprising:
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a database for storing data relating to a digital elevation model of a portion of the earth'"'"'s surface, said model comprising a plurality of pixels, said digital elevation model including a location coordinate and an elevation value associated with each pixel; and a processor coupled to the database, the processor configured to; receive the location coordinate and an elevation value associated with at least one pixel; receive a minimum elevation value for at least one pixel displayed on the en-route visible terrain display; determine at least one of a color value and grayscale value of the at least one pixel based on a comparison of the elevation value and the received minimum elevation value; and display a shaded terrain map comprising a plurality of the at least one pixels on the en-route visible terrain display using the location coordinate and the determined at least one of a color value and grayscale value. - View Dependent Claims (20, 21)
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Specification