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:
Apr. 18, 2017
Filed:
Sep. 03, 2014
Qualcomm Incorporated, San Diego, CA (US);
Lei Zhang, New Brunswick, NJ (US);
Sichao Yang, Basking Ridge, NJ (US);
Shankar Sadasivam, San Diego, CA (US);
Sundar Subramanian, Bridgewater, NJ (US);
Xinzhou Wu, Hillsborough, NJ (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Disclosed is an apparatus and method for classifying a motion state of a mobile device. In one embodiment, accelerometer data representing acceleration components along orthogonal x, y, and z axes of the mobile device are collected. A presence or absence of a half-step frequency relationship between the accelerometer data is determined. Last, the motion state of the device is determined based at least in part on the presence or absence of the half-step frequency relationship.