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Vehicle navigation and safety systems

  • US 20040225434A1
  • Filed: 05/07/2003
  • Published: 11/11/2004
  • Est. Priority Date: 05/07/2003
  • Status: Abandoned Application
First Claim
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1. A vehicle navigation system, comprising:

  • a traffic control unit in communication with a traffic control device for determining time remaining before the traffic control device changes traffic flow;

    a transmitter coupled to the traffic control unit for transmitting at least one signal to a receiver, wherein the signal represents the amount of time remaining before the traffic control device changes traffic flow;

    a receiver for receiving at least one traffic signal from the transmitter and for receiving global positioning system signals; and

    a navigation device for receiving the at least one traffic signal from the transmitter, alerting a driver of the time period remaining before the traffic control device changes traffic flow, and alerting the driver of locations of traffic devices.

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