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Method of exchanging navigation information

  • US 7,117,085 B2
  • Filed: 01/19/2002
  • Issued: 10/03/2006
  • Est. Priority Date: 02/09/2001
  • Status: Expired due to Fees
First Claim
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1. A method of exchanging navigation information between a terminal and a control center, the navigation information including route information for at least one route between a starting point and a destination, the method comprising:

  • verifying at least one of a starting point reference ID and starting coordinates;

    verifying at least one of a destination reference ID and destination coordinates;

    calculating route data;

    transmitting to the terminal a route response containing at least a part of the route data, wherein the route data correspond to one of the at least one route and at least one partial route from a starting point to an intermediate point located between the starting point and the destination at least as a function of a length of the at least one route, and wherein the intermediate point has at least one of a verified intermediate point reference ID and verified intermediate point coordinates; and

    requesting additional route data from the control center via one of the terminal and a separate device before the intermediate point is reached, wherein;

    the terminal includes a mobile terminal, andthe additional route data corresponding to one of a route from the intermediate point to the destination and a route from the intermediate point to an additional intermediate point.

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