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:
Nov. 19, 2024
Filed:
Aug. 19, 2022
Subaru Corporation, Tokyo, JP;
Fumiya Sato, Tokyo, JP;
SUBARU CORPORATION, Tokyo, JP;
Abstract
A road-surface state determination apparatus performing non-contact determination of a state of a road surface includes one or more processors. The one or more processors control a light source emitting each of three near-infrared lights having respective wavelengths different from one another, thereby cause the three near-infrared lights to be applied from the light source onto the road surface, and cause a light reception sensor to receive the three near-infrared lights reflected by the road surface. The one or more processors perform primary determination as to whether a type of the road surface is a snow accumulated state in precedence over other types on the basis of a light reception result obtained by the light reception sensor, and thereafter perform secondary determination as to which one of the other types the type of the road surface is on the basis of the light reception result.