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:
Aug. 14, 2012
Filed:
Jul. 11, 2007
Norimasa Kobori, Toyota, JP;
Kazunori Kagawa, Nishikamo-gun, JP;
Norimasa Kobori, Toyota, JP;
Kazunori Kagawa, Nishikamo-gun, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A navigation apparatus that detects a position of a movable body includes map data storage means for storing map data; an autonomous sensor that detects information on behavior of the movable body; inertial position determination means for detecting an inertial position-determination position of the movable body, by accumulating the information detected by the autonomous sensor on a result of position determination performed using radio navigation; characteristic position detection means for detecting a characteristic position that is the inertial position-determination position at which the movable body has exhibited a characteristic behavior; correction amount detection means for extracting positional information on a road position corresponding to the characteristic position, by referring to the map data storage means; and position correction means for correcting the characteristic position using a Kalman filter based on a condition that the characteristic position is close to the road position.