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. 12, 2017
Filed:
Jul. 28, 2015
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Akinobu Sato, Fujimi-machi, JP;
Anand Kumar, Richmond, CA;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 21/10 (2006.01); G01C 21/16 (2006.01); G01C 22/00 (2006.01);
U.S. Cl.
CPC ...
G01C 21/16 (2013.01); G01C 22/006 (2013.01);
Abstract
A position calculation device includes an acceleration sensor and a gyro sensor to detect a movement of the user which is mounted on the body of the user, an arithmetic processing unit which executes setting a traveling direction axis by using a detection result of the sensor, using a change in a traveling direction of the user and correcting the traveling direction axis, and calculating a position based on the detection result of the sensor by using predetermined constraint condition based on the traveling direction axis.