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:
Jun. 04, 2013
Filed:
Mar. 01, 2011
Nakamura Hiroshi, Chiba, JP;
Nakamura Hiroshi, Chiba, JP;
Hyundai Motor Japan R&D Center, Inc., Yokohama, JP;
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Abstract
The present invention provides a camera for detecting a driver's drowsiness state, which can increase the number of pixels in an image of a driver's eye even when using an image sensor having the same number of pixels as a conventional camera instead of a high definition camera. The camera of the present invention is, thus, capable of determining whether the driver's eyes are open or closed. The camera for detecting the driver's state according to the present invention includes a cylindrical lens mounted in front of the camera configured so as to enlarge an image in the vertical direction, a convex lens located in the rear of the cylindrical lens, an image sensor for taking an image of a driver's face formed by the cylindrical lens and the convex lens, and an image processor for extracting an eye area from the image of the driver's face and determining whether the driver's eyes are open or closed.