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Apparatus and method to indicate course deviation instrument saturation

  • US 8,224,566 B2
  • Filed: 07/21/2008
  • Issued: 07/17/2012
  • Est. Priority Date: 07/21/2007
  • Status: Active Grant
First Claim
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1. An electronics display instrument configured to display aircraft course deviation, the instrument comprising:

  • a first input to receive navigation information of the aircraft;

    a second input to receive position information of the aircraft;

    a controller to compare the navigation information and position information to yield a signal; and

    an output to convey the signal by displaying a conditional symbol on a limited measurement scale, wherein the conditional symbol corresponds to a conventional readout of an instrument configured to display aircraft course deviation, and wherein the conditional symbol is moveable from a first extreme to a second extreme with a central position therebetween;

    wherein the conditional symbol being in the central position indicates the aircraft is on course, and the conditional symbol being in the first or second extreme positions indicates the aircraft is off course in a first or a second direction by an amount at least equal to the measurement scale;

    wherein the conditional symbol has a first form to indicate that the aircraft is off course by an amount within the measurement scale, and a second form to indicate that the aircraft is off course by an amount in excess of the measurement scale.

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