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:
Aug. 07, 2018
Filed:
Feb. 24, 2014
Nissan Motor Co., Ltd., Yokohama-Shi, Kanagawa, JP;
Ichiro Yamaguchi, Kanagawa, JP;
Hidekazu Nishiuchi, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Abstract
A self-position calculating apparatus includes: a light projectorconfigured to project a patterned light beamonto a road surfacearound a vehicle; and a cameraconfigured to capture an imageof the road surfacearound the vehicle including an area onto which the patterned light beamis projected. The self-position calculating apparatus calculates an orientation angle of the vehiclerelative to the road surfacefrom a position of the patterned light beamon the imageobtained by the camera, and calculates an amount of change in the orientation of the vehicle based on temporal changes in multiple feature points on the road surface which are detected from the image. The self-position calculating apparatus calculates current position and orientation angle of the vehicle by adding the amount of change in the orientation to initial position and orientation angle of the vehicle. If a condition under which the multiple feature points are detected does not satisfy a first criterion, the self-position calculating apparatus projects the patterned light beam