×

Enhanced paint for microwave/millimeter wave radiometric detection applications and method of road marker detection

  • US 6,157,320 A
  • Filed: 06/29/1999
  • Issued: 12/05/2000
  • Est. Priority Date: 05/28/1997
  • Status: Expired due to Fees
First Claim
Patent Images

1. A system for communicating to a vehicle operator operating a vehicle upon a roadway in a geographic region in which the roadway is exposed to the sky of the presence nearby of a roadway marker strip on said roadway, comprising:

  • MMW radiometer means carried by said vehicle for detecting MMW radiometric energy;

    said MMW radiometer means including antenna means oriented forwardly and downwardly at a steep angle toward said roadway;

    a roadway marker comprising MMW radiometric energy reflecting material, said roadway marker forming a strip adhered to said roadway and essentially flush therewith;

    said roadway marker having a MMW radiometric temperature characteristic distinct from and provides detectable MMW radiometric contrast with the MMW radiometric temperature characteristic of said roadway.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×