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. 07, 2017
Filed:
Mar. 10, 2014
Nissan Motor Co., Ltd., Yokohama-Shi, Kanagawa, JP;
Takahiko Oki, Kanagawa, JP;
Hidekazu Nishiuchi, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Abstract
A traffic light detecting device includes a camera capturing an image in the travelling direction of a vehicle, and a traffic light detecting unit detecting a traffic light from the image. The unit sets reference signals the number of which is a multiple of three, and phases of which are shifted each other by a time obtained by dividing a cycle of an alternating current power supplied to the traffic light by the multiple of three, and adjusts a phase of the reference signal which is closest to the phase of the alternating current power, to the phase thereof. The unit extracts from the image a synchronized pixel with a luminance which varies in synchronization with the reference signal having the phase adjusted to the phase thereof, and judges that a traffic light is present at a position of the synchronized pixel.