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:
Oct. 02, 2012
Filed:
Oct. 31, 2007
Jae-myeon Lee, Yongin-si, KR;
Hyun-su Hong, Seongnam-si, KR;
Chan-gook Park, Seoul, KR;
Jin-won Kim, Seoul, KR;
Kyong-ha Park, Suwon-si, KR;
Ji-heon OH, Yongin-si, KR;
Jae-Myeon Lee, Yongin-si, KR;
Hyun-Su Hong, Seongnam-si, KR;
Chan-Gook Park, Seoul, KR;
Jin-Won Kim, Seoul, KR;
Kyong-Ha Park, Suwon-si, KR;
Ji-Heon Oh, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Seoul National University Industry Foundation, Seoul, KR;
Abstract
An apparatus and method for estimating a step length of a user are provided. The apparatus and method use a step length estimation algorithm, e.g. a step length estimation parameter coefficient, according to a movement state of a user, i.e. whether the movement state is a walking state or a running state. The movement state of the user is determined on the basis of an acceleration variance value of an acceleration signal output from an accelerometer. Accordingly, the apparatus and method prevent errors in step length determinations.