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System and method using environment memory having signatures

  • US 20030200026A1
  • Filed: 04/18/2002
  • Published: 10/23/2003
  • Est. Priority Date: 04/18/2002
  • Status: Active Grant
First Claim
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1. A collision avoidance system comprising:

  • means for determining own aircraft data including position, altitude, velocity, and bearing;

    means for interrogating other aircraft to determine other aircraft data including position, altitude, velocity, and bearing;

    means for determining a threat of collision with other aircraft in accordance with the own aircraft data and with the other aircraft data;

    means for displaying at least a portion of the own aircraft data and at least a portion of the other aircraft data;

    means for alerting a crew member of a threat of collision with other aircraft;

    wherein;

    for at least one of the means for determining own aircraft data, means for interrogating, means for determining a threat of collision with other aircraft, means for displaying own aircraft data, means for determining own aircraft position, means for displaying a terrain map, means for determining a threat of collision with terrain, and the means for alerting a crew member;

    the at least one means is packaged in a replaceable unit for installation on the own aircraft at an interface, the interface having a first means for storing first content and a plurality of signature values, each signature value for a respective portion of the first content;

    the at least one means further comprises;

    second means for storing second content;

    means for validating the second content with reference to at least one signature value of the first content;

    means for updating the second content in accordance with the first content; and

    means for operating the subsystem in accordance with the updated second content.

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