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. 21, 2017
Filed:
Mar. 17, 2014
Seiko Epson Corporation, Tokyo, JP;
Akinobu Sato, Fujimi, JP;
Shunichi Mizuochi, Matsumoto, JP;
Shuji Uchida, Shiojiri, JP;
Anand Kumar, Richmond, CA;
Seiko Epson Corporation, , JP;
Abstract
A traveling direction velocity calculation devicecalculates a posture of an acceleration sensorwith respect to a user, using a detection result represented in a local coordinate system associated with the acceleration sensor, detecting acceleration, which is worn on a user's body, when a change in the detection result of the acceleration sensorsatisfies a predetermined specific condition. The detection result of the acceleration sensorat a time different from that when the posture is calculated and at a time when the specific condition is satisfied is transformed, using the calculated posture, to a mobile body coordinate system associated with a user. A velocity in a traveling direction of the user is calculated using the transformed detection result.