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:
Mar. 01, 2022
Filed:
Sep. 04, 2019
Applicant:
Sumitomo Electric System Solutions Co., Ltd., Tokyo, JP;
Inventor:
Hajime Sakakibara, Tokyo, JP;
Assignee:
SUMITOMO ELECTRIC SYSTEM SOLUTIONS CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08G 1/08 (2006.01); G08G 1/01 (2006.01); G08G 1/065 (2006.01);
U.S. Cl.
CPC ...
G08G 1/08 (2013.01); G08G 1/0133 (2013.01); G08G 1/0145 (2013.01); G08G 1/065 (2013.01);
Abstract
A device for calculating a traffic index that is required for calculation of a signal control parameter. The device includes: a first calculation unit that calculates normalized data representing a ratio of a traffic variable of an inflow road at a target intersection to a saturation flow rate; and a second calculation unit that calculates, by using the normalized data, the traffic index that is defined by a formula in which the traffic variable of the inflow road is included in a numerator and the saturation flow rate is included in a denominator.