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Vehicle navigation system and method

  • US 8,027,787 B2
  • Filed: 12/22/2009
  • Issued: 09/27/2011
  • Est. Priority Date: 03/29/2001
  • Status: Expired due to Fees
First Claim
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1. A vehicle navigation method comprising:

  • initiating a trip request, including trip request information;

    determining vehicle coordinates;

    sending vehicle coordinates and the entered trip request information to a server over a network;

    retrieving at the server road information based on the vehicle coordination and entered trip request information from an information center over a network connection;

    generating a trip plan according to navigation information stored in a memory associated with the server, the vehicle coordinates, the trip request information, and the retrieved road information, wherein the generated trip plan includes a table of locations of the trip plan with associated navigation prompts;

    sending the generated trip plan table to the vehicle over the network;

    comparing present vehicle coordinates to the trip plan table; and

    if, according to the comparison, the vehicle coordinates are within a threshold value from a location in the table, presenting the navigation prompt associated with the location in the table that is within the threshold value of the vehicle'"'"'s location.

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