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Method and system for interfacing a global positioning system, other navigational equipment and wireless networks with a digital data network

  • US 6,684,157 B2
  • Filed: 12/06/2001
  • Issued: 01/27/2004
  • Est. Priority Date: 12/06/2001
  • Status: Active Grant
First Claim
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1. A method of providing navigational data in a vehicle comprising:

  • connecting a GPS receiver through a network interface to a digital data network installed in said vehicle such that said GPS receiver will output navigational data on said digital data network; and

    supplementing said navigational data from said GPS receiver with vehicle heading data from an inertial sensor also connected to said network interface, wherein said heading data from said inertial sensor is substituted for heading data from said GPS receiver if a speed of said vehicle is below a predetermined threshold.

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