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Electronic navigation system and method

  • US 8,325,064 B2
  • Filed: 10/30/2007
  • Issued: 12/04/2012
  • Est. Priority Date: 06/24/1994
  • Status: Expired due to Fees
First Claim
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1. A system for providing geographic information comprising:

  • a base unit having a processor and a geographic database;

    wherein said base unitreceives a request for a point of interest located within a specified driving distance from a mobile device, the request comprising an origin of said mobile unit, a point of interest category and a driving distance limit, wherein the driving distance limit indicates a maximum driving distance from the origin to a point of interest,after the receiving the request step, identifies a driving route comprising a plurality of connected paths represented in the geographic database over which the mobile unit could travel from said origin to a point of interest matching said point of interest category;

    after the identifying the driving route step, calculates a driving distance for said identified driving route from the origin to said point of interest matching said point of interest category;

    after the calculating the driving distance step, if said calculated driving distance is less than said driving distance limit, provides the response to said mobile unit identifying said point of interest matching said point of interest category and having said driving distance less than said driving distance limit.

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