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APPARATUS AND METHODS FOR REDUCING DATA TRANSMISSION IN WIRELESS CLIENT-SERVER NAVIGATION SYSTEMS

  • US 20080249704A1
  • Filed: 04/09/2007
  • Published: 10/09/2008
  • Est. Priority Date: 04/09/2007
  • Status: Active Grant
First Claim
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1. A method of reducing data transmission in a wireless client-server navigation system, comprising the steps of:

  • receiving, at a central server, a request for data representative of a map-related feature from a mobile unit;

    obtaining data describing the feature in the form of line segments interconnecting points having coordinates;

    performing an operation on the data describing the feature to generate data representative of the feature in a data-reduced format; and

    forwarding the data representative of the feature in the data-reduced format to the mobile unit issuing the request.

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