The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 2013
Filed:
Nov. 23, 2009
Davide Capello, Orbassano, IT;
Nereo Pallaro, Orbassano, IT;
Luca Liotti, Orbassano, IT;
Luca Guglielmetto, Orbassano, IT;
Davide Capello, Orbassano, IT;
Nereo Pallaro, Orbassano, IT;
Luca Liotti, Orbassano, IT;
Luca Guglielmetto, Orbassano, IT;
C.R.F. Società Consortile per Azioni, Orbassano (Torino), IT;
Abstract
An optical device for motor vehicles, designed to detect the condition of the road surface, comprises a unit for the emission of electromagnetic radiation in the direction of the road surface to be detected, a receiving unit coupled to an optical element for focusing the radiation back-diffused by the road surface and an electronic control and processing unit for receiving signals at output from said receiving unit and for processing them in order to determine the condition of the road surface, on the basis of a reference map. Appearing in said map are the values of the intensity of radiation Iback-reflected at a reference wavelength and at least one second wavelength. The map is divided into subareas identified beforehand as corresponding to the different conditions of the road surface.