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:
Mar. 13, 2012
Filed:
Nov. 05, 2009
Shunichi Mizuochi, Nagano, JP;
Shigeru Imafuku, Nagano, JP;
Kenji Onda, Nagano, JP;
Kumar Anand, Nagano, JP;
Shunichi Mizuochi, Nagano, JP;
Shigeru Imafuku, Nagano, JP;
Kenji Onda, Nagano, JP;
Kumar Anand, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A position calculating method includes: calculating a position of a mobile body based on a positioning signal from a positioning satellite; determining the moving condition of the mobile body based on a detection result of a sensor unit including at least one of an acceleration sensor, an angular speed sensor, and an azimuth sensor; changing an error parameter used for a predetermined Kalman filter process according to the determined moving condition; and correcting the calculated position by the Kalman filter process.