US 7,881,902 B1
Human activity monitoring deviceGeneral
US 7,881,902 B1
Human activity monitoring device
Tech Center:
2800 Semiconductors/Memory, Circuits/Measuring and Testing, Optics/Photocopying, Printing/Measuring and Testing
Examiner:
Edward R Cosimano
Art Unit:
2863 Printing/Measuring and Testing
Inventors:
Philippe Kahn; Arthur Kinsolving; Mark Andrew Christensen; Brian Y. Lee; David Vogel
Assignee:
Priority:
12/22/06
Filed:
01/26/10
Granted:
02/01/11
Expiration:
12/22/26
Abstract
A method for monitoring human activity using an inertial sensor includes continuously determining an orientation of the inertial sensor, assigning a dominant axis, updating the dominant axis as the orientation of the inertial sensor changes, and counting periodic human motions by monitoring accelerations relative to the dominant axis.