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. 30, 2013
Filed:
Aug. 22, 2008
Teruhide Hayashida, Tokyo, JP;
Tomoyuki Zaitsu, Okazaki, JP;
Kazutaka Yoshikawa, Okazaki, JP;
Kenji Nagase, Okazaki, JP;
Hiroki Ishikawa, Anjo, JP;
Teruhide Hayashida, Tokyo, JP;
Tomoyuki Zaitsu, Okazaki, JP;
Kazutaka Yoshikawa, Okazaki, JP;
Kenji Nagase, Okazaki, JP;
Hiroki Ishikawa, Anjo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Aisin Aw Co., Ltd., Anjo, JP;
Abstract
A traffic information generation method for generating traffic information for each link includes a vehicle speed detection step of detecting a vehicle speed at predetermined distance intervals or at predetermined time intervals using a vehicle speed sensor; and a traffic jam degree detection step of referring to a specified speed and a specified distance prescribed in association with a traffic jam degree representing a level of a traffic jam and a connection determination distance prescribed in accordance with a road type to detect the traffic jam degree corresponding to the vehicle speed. When a link length falls within a predetermined range, information on the traffic jam degree corresponding to a fastest vehicle speed within a prescribed starting point distance from a beginning of the link is allocated to the link.