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:
Sep. 22, 2009
Filed:
Apr. 27, 2006
Shin Oguri, Tokyo, JP;
Masatoshi Kimoto, Yokohama, JP;
Shin Oguri, Tokyo, JP;
Masatoshi Kimoto, Yokohama, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A location estimating apparatushas an information acquiring part, an information storing part, and an arithmetic processing part. The information acquiring parthas a location information acquirerfor acquiring location information of a mobile object from information, and an error information acquirerfor acquiring error information from information. The information storing partstores the location information and error information sent from the information acquiring part, at each measurement time. The arithmetic processing partestimates a location from the location information and error information from the information acquiring part. The arithmetic processing partof the location estimating apparatus estimates the location of the mobile object by successively executing a first step of estimating a moving area per unit time of the mobile object, a second step of estimating an existing area at present of the mobile object, and a third step of estimating a location at present of the mobile object. This makes it feasible to provide location estimating means capable of achieving a high matching rate with an actual state, without use of other device information, while effectively utilizing information.