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Terrain data retrieval system

  • US 6,710,723 B2
  • Filed: 09/17/2001
  • Issued: 03/23/2004
  • Est. Priority Date: 07/31/1995
  • Status: Expired due to Fees
First Claim
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1. A terrain display for a vehicle comprising:

  • a position input representative of a position and a heading of the vehicle;

    a look-ahead distance coefficient stored in a computer readable memory device;

    a database of terrain information;

    a signal processing device coupled to said position input, look-ahead distance coefficient and said database, for retrieving a subset of said terrain information that is proximate to an anticipated path segment of the vehicle based upon the position of the vehicle, the heading of the vehicle, and the look-ahead disance coefficient wherein said signal processing device selects a resolution of said terrain information based on the anticipated path segment of the vehicle; and

    a display, coupled to said signal processing device, for displaying said subset of said terrain information.

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