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Integrated position and direction system with map display oriented according to heading or direction

  • US 6,529,828 B1
  • Filed: 02/07/2001
  • Issued: 03/04/2003
  • Est. Priority Date: 07/12/2000
  • Status: Active Grant
First Claim
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1. A method of displaying map information using an integrated position and direction system (IPADS) having a satellite positioning system and a digital compass, said method comprising the steps of:

  • a) determining position using said satellite positioning system;

    b) determining orientation, said orientation determined using said satellite positioning system when said IPADS is moving and said orientation determined using said digital compass when said IPADS is not moving;

    c) generating said map information using said position determined in said step a);

    d) displaying said map information such that said map information is oriented according to said orientation determined in said step b); and

    e) indicating whether said orientation is determined using said satellite positioning system or whether said orientation is determined using said digital compass.

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