Dynamic Minimum Altitude Depiction for Moving Map Systems

The patent transforms static altitude depictions into dynamic representations that automatically adjust based on aircraft position. The minimum altitude information is rendered only in the relevant sector corresponding to the aircraft's current location, causing the displayed information to dynamically change as the aircraft moves. This resolves the contradiction by providing comprehensive altitude data when needed while keeping the display clean and uncluttered at any given moment.

The patent applies local quality by rendering minimum altitude information selectively in specific sectors rather than uniformly across the entire chart. Each sector displays altitude data relevant to that particular direction from the navigation aid, allowing pilots to see detailed altitude information for their current sector without being overwhelmed by data from all other sectors. This localized approach reduces overall clutter while maintaining information availability.

The system dynamically adjusts the display of minimum altitude information based on aircraft position and operational context. Rather than using static overlays that blend with terrain, the patent renders altitude data as distinct, movable elements that update in real-time. This dynamic approach ensures altitude information remains visually distinct from terrain data regardless of lighting conditions, as the information adapts to the current flight context rather than remaining fixed.

The patent employs color changes to differentiate minimum altitude information from terrain data. By using distinct color coding for altitude indicators versus terrain features, the system ensures that critical altitude information remains discernible even in low-light conditions. The color differentiation creates visual contrast that prevents blending between altitude data and terrain representation.