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. 10, 2019
Filed:
Nov. 22, 2016
Yusuke Matsushita, Tochigi, JP;
Yusuke Matsushita, Tochigi, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
To improve indoor positioning accuracy, an inertial device includes a traveling direction estimator configured to estimate a traveling direction and movement velocity, based on an output of a sensor, a position estimator configured to generate an estimated position of the inertial device by use of an inertial navigation system, based on the traveling direction and the movement velocity estimated by the traveling direction estimator, an absolute position information acquirer configured to acquire absolute position information which is provided externally, a position corrector configured to correct the estimated position based on the absolute position information and generate a corrected position, upon acquiring the absolute position information, and a traveling direction corrector configured to correct the traveling direction based on a gap between a direction from a predetermined position to the estimated position and a direction from the predetermined position to the corrected position.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile