System and method for eliminating terrain color confusion in aircraft displays
US7327285B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2005 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Dec 26, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G5/74
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An improved system and method for eliminating terrain color confusion in aircraft displays are disclosed. An aircraft display system is described that includes a database for storing terrain data, a processing unit, an altitude determination unit, and a visual display. As the aircraft proceeds along a flight path, the processing unit determines the aircraft's current position and compares associated terrain elevation data stored in the database with altitude data received from the altitude determination unit. For example, if the processing unit's comparison of the stored terrain data and altitude data indicates that relative terrain data need not be displayed, then the processing unit provides absolute terrain color renderings to the display. However, if the processing unit's comparison of the stored terrain data and altitude data indicates that relative terrain data should be displayed, then the processing unit removes the hue from the absolute terrain color renderings on the display and replaces the color, for example, with a grayscale. Therefore, by removing color from an absolute terrain layer if relative terrain color information is displayed, the present invention eliminates …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.