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. 29, 2016
Filed:
Feb. 07, 2014
Zenrin Co., Ltd., Kitakyushu-shi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Aisin Aw Co., Ltd., Anjo-shi, JP;
Hiroyuki Tashiro, Kitakyushu, JP;
Kei Hiroo, Kitakyushu, JP;
Yoshitaka Nishino, Kitakyushu, JP;
Tomoki Kodan, Nagoya, JP;
Motohiro Nakamura, Okazaki, JP;
Sadahiro Koshiba, Takahama, JP;
Kazuteru Maekawa, Miyoshi, JP;
ZENRIN CO., LTD., Kitakyushu-shi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
AISIN AW CO., LTD., Anjo-shi, JP;
Abstract
An analyzer of the invention adequately analyzes a change in road network by using probe information generated with driving of a vehicle. This analyzer determines a traffic amount of vehicles passing through a specified section included in the road network from a plurality of the probe information accumulated over a predetermined period. The analyzer also determines a discontinuity rate, which is a rate of incidents that vehicle locations are discontinuous in the specified section, from the plurality of probe information accumulated over the predetermined period. The analyzer detects a change in the road network, based on a degree of change between traffic amounts in two different periods with respect to the specified section included in the road network and a degree of change between discontinuity rates in the two different periods. The detected change in the road network can be used for survey of the road network.