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:
Apr. 02, 2013
Filed:
Jul. 08, 2010
Yusuke Mizuno, Anjo, JP;
Yusuke Mizuno, Anjo, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
An in-vehicle arithmetic unit calculates a required time, which is needed for a vehicle to arrive at a traffic light when the vehicle maintains a present speed, according to a speed of the vehicle, a present position of the vehicle, and information on the traffic light. An in-vehicle determination unit determines whether the vehicle can pass the traffic light by maintaining the present speed, according to the required time and the traffic light information. An in-vehicle generating unit generates a request signal to request the traffic light to light a passing permission color such as a blue light after the required time elapses, in response to a determination that the vehicle cannot pass the traffic light. An in-vehicle transmission unit transmits the request signal to the traffic light. A control unit of the traffic light controls the signal light according to the transmitted request signal.