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. 30, 2014
Filed:
Aug. 23, 2011
Abdelmonaem Lakhzouri, Tampere, FI;
Joonas V. T. Viskari, Lempaala, FI;
Abdelmonaem Lakhzouri, Tampere, FI;
Joonas V. T. Viskari, Lempaala, FI;
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A method and apparatus are described for sensor based detection of pedestrian motion. Based on a 3-axis accelerometer, the apparatus may differentiate between walking, running, standing still, or any random movement that the user may perform. The method may comprise the steps of performing a time domain analysis and a frequency domain analysis. The time domain analysis may be based on a Teager-Kaiser Energy Operator. The frequency domain analysis may be based on a fast Fourier transform. A apparatus for detecting pedestrian motion may comprises an accelerometer, an operator, a Teager-Kaiser Energy Operator, a first peak detection, a second peak detection, a buffer, a fast Fourier transform, a memory and a look-up table. The apparatus may be a hand held device.