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GPS based vehicle warning and location system

  • US 7,099,774 B2
  • Filed: 01/21/2003
  • Issued: 08/29/2006
  • Est. Priority Date: 01/21/2003
  • Status: Expired due to Fees
First Claim
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1. An emergency vehicle alert system for providing information as to a location of an emergency vehicle to a motor vehicle, the system comprising:

  • a first GPS receiving unit that is provided on the emergency vehicle and that is configured to receive GPS signals and to determine emergency vehicle location information of the emergency vehicle as a result thereof;

    a transmitter unit that is provided on the emergency vehicle and that is configured to transmit the emergency vehicle location information by way of an emergency vehicle location signal that includes the emergency vehicle location information;

    a second GPS receiving unit that is provided on the motor vehicle and that is configured to receive GPS signals and to determine vehicle location information of the motor vehicle as a result thereof;

    a receiver unit that is provided on the motor vehicle and that is configured to receive the emergency location signal output by the transmitter unit of the emergency vehicle; and

    a map display that is provided on the motor vehicle and that is configured to display, on a map, a current location of the motor vehicle as provided by the vehicle location information, and that is configured to display, on the map, a current location of the emergency vehicle as provided by the emergency vehicle location information obtained from the emergency vehicle location signal received by the receiver unit when the receiver unit is in communication range with respect to the transmitter unit.

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