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:
Oct. 30, 2012
Filed:
Jun. 18, 2010
Tomoaki Hiruta, Hitachi, JP;
Toshiyuki Aoki, Hitachi, JP;
Takayoshi Yokota, Hirakata, JP;
Mikio Bando, Mito, JP;
Kazuhiro Okada, Ebina, JP;
Tomoaki Hiruta, Hitachi, JP;
Toshiyuki Aoki, Hitachi, JP;
Takayoshi Yokota, Hirakata, JP;
Mikio Bando, Mito, JP;
Kazuhiro Okada, Ebina, JP;
Clarion Co., Ltd., Tokyo, JP;
Abstract
A position detection apparatus includes a storage unit for storing map information including road information; a detection unit for detecting information for calculating an absolute position of a moving object; a position calculation unit for calculating the absolute position of the moving object and an error variance relating to an error of the moving object from the detected information; a read-out unit for reading out from the storage unit the road information of a road relating to the calculated absolute position; an existence probability calculation unit for calculating an existence probability of the moving object existing on the road from the absolute position, the error variance, and the read-out road information; a selection unit for selecting a position whose existence probability is maximum out of the calculated existence probability; and a map-matching processing unit for making the selected position a position of the moving object on the road.