Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Aeronautical vehicle
Reexamination Certificate
2005-06-29
2011-10-04
To, Tuan C (Department: 3663)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Aeronautical vehicle
C701S016000
Reexamination Certificate
active
08032265
ABSTRACT:
A system and method are disclosed for enhancing the visibility and ensuring the correctness of terrain and navigation information on aircraft displays, such as, for example, continuous, three-dimensional perspective view aircraft displays conformal to the visual environment. More specifically, an aircraft display system is disclosed that includes a processing unit, a navigation system, a database for storing high resolution terrain data, a graphics display generator, and a visual display. One or more independent, higher precision databases with localized position data, such as navigation data or position data is onboard. Also, one or more onboard vision sensor systems associated with the navigation system provides real-time spatial position data for display, and one or more data links is available to receive precision spatial position data from ground-based stations. Essentially, before terrain and navigational objects (e.g., runways) are displayed, a real-time correction and augmentation of the terrain data is performed for those regions that are relevant and/or critical to flight operations, in order to ensure that the correct terrain data is displayed with the highest possible integrity. These corrections and augmentations performed are based upon higher precision, but localized onboard data, such as navigational object data, sensor data, or up-linked data from ground stations. Whenever discrepancies exist, terrain data having a lower integrity can be corrected in real-time using data from a source having higher integrity data. A predictive data loading approach is used, which substantially reduces computational workload and thus enables the processing unit to perform such augmentation and correction operations in real-time.
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Prinzel et al.,“NASA Synthetic Vision EGE Flight Test,” 1999, pp. 1-5, NASA Langley Research Center, Hampton VA, USA.
Honeywell International , Inc.
Ingrassia Fisher & Lorenz P.C.
Mustafa Imran
To Tuan C
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