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:
Jan. 11, 2011
Filed:
Feb. 15, 2007
Akihiro Ueda, Toyota, JP;
Iwao Maeda, Nagoya, JP;
Kiyomi Nagamiya, Nishikamo-gun, JP;
Yasuhiro Tajima, Toyota, JP;
Akihiro Ueda, Toyota, JP;
Iwao Maeda, Nagoya, JP;
Kiyomi Nagamiya, Nishikamo-gun, JP;
Yasuhiro Tajima, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A positioning systemincludes a positioning unitconfigured to perform position estimation based on radio signals from artificial satellites and an autonomous navigation unitconfigured to perform position estimation by autonomous navigation. In the positioning systemthe positioning unitand the autonomous navigation unitestimate the position of a mobile body in cooperation with each other; and when the number of the artificial satellites available is less than three, the positioning unit determines a point in an area calculated based on the radio signals which point is closest to an inertial-navigation-based position calculated by autonomous navigation, and uses the determined point as a satellite-based position estimated based on the radio signals.