초록 ▼

Vehicle (4) are automatically identified using a specially constructed windshield (8) which carries identifying indicia (10). The window is a layered construction, similar to safety glass, and includes an intermediate layer (20) sandwiched between inner and outer glass layers (22, 24). The intermedi

Vehicle (4) are automatically identified using a specially constructed windshield (8) which carries identifying indicia (10). The window is a layered construction, similar to safety glass, and includes an intermediate layer (20) sandwiched between inner and outer glass layers (22, 24). The intermediate layer carries the identifying indicia, typically in a bar coded pattern. The indicia are invisible to the unaided human eye but are detectable when illuminated with a chosen electromagnetic radiation, typically infrared light from a CO2 laser. The bar coded indicia are preferably unique to the particular vehicle. Since the bar coded indicia can cover substantially an entire windshield, and since windshields are normally kept clean, sensing of the indicia is aided. The vehicle identification system thus permits the non-invasive identification of a vehicle even under adverse environmental condition.

대표청구항 ▼

A vehicle identification system, for use with a vehicle of the type including a window, the improvement comprising: said window being of a layered construction and including an outer layer, an intermediate layer and an inner layer: and the intermediate layer including identifying indicia which are i

A vehicle identification system, for use with a vehicle of the type including a window, the improvement comprising: said window being of a layered construction and including an outer layer, an intermediate layer and an inner layer: and the intermediate layer including identifying indicia which are invisible to the unaided human eye but are detectable when illuminated with a chosen electromagnetic radiation.