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System and method for controlling the transmission of traffic information to a vehicle navigation system

  • US 8,838,378 B2
  • Filed: 01/21/2013
  • Issued: 09/16/2014
  • Est. Priority Date: 01/21/2013
  • Status: Active Grant
First Claim
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1. A vehicle navigation system comprising:

  • an onboard vehicle navigation device;

    sensors for detecting and reporting vehicle speed and direction;

    a broadcast source of traffic information;

    a mobile network source of traffic information;

    a remotely located server having a processor and memory, the server in communication with the broadcast source of traffic information and the mobile network source of traffic information, and further including a software program adapted to compare traffic information from the broadcast source with traffic information from the mobile network source, to detect a difference therebetween, and to compare any detected difference to a predetermined difference value; and

    a mobile communication device in communication with the onboard vehicle navigation device and the server, the mobile communication device acting as a conduit for transmitting route guidance requests from the vehicle navigation device to the server, and for transmitting route guidance data from the server to the vehicle navigation device;

    wherein, upon receipt of a request for updated route guidance data from the vehicle navigation device, the server is adapted to transmit updated route guidance data to the vehicle navigation device only when a detected difference between traffic information from the broadcast source and traffic information from the mobile network source is determined to exceed the predetermined difference value.

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