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Collision warning system

  • US 6,470,273 B2
  • Filed: 12/26/2001
  • Issued: 10/22/2002
  • Est. Priority Date: 11/08/2000
  • Status: Expired due to Fees
First Claim
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1. An apparatus for collision warning in a vehicle, the apparatus comprising:

  • plural optical sensors integral to a moving vehicle, each of the optical sensors enabled and positioned for the detection of visible light magnitudes and infrared light magnitudes and for the creation of corresponding electrical signals, the sensors mounted such that light is received thereby from at least two points, one preceding the other along a line of travel of the vehicle;

    a means for discriminating between roadway light reflection changes, and non-roadway light reflection changes and a means for comparing the electrical signals and for generating an alert electrical signal;

    a warning alert presentation means enabled for receiving the alert electrical signal and to alert a vehicle operator as to a possible collision.

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