Techniques for determining orientation of a three-axis...

Data processing: measuring – calibrating – or testing – Measurement system – Accelerometer

Reexamination Certificate

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Reexamination Certificate

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07970573

ABSTRACT:
A method, apparatus, and article containing computer instructions are described. Embodiments may use accelerometer data regarding forward motion by a wearer of a three-axis on-body accelerometer. Embodiments may further measure an acceleration due to gravity on each axis x, y, z of the accelerometer and use the direction of gravity to associate or align the x axis of the accelerometer with gravity. Embodiments may then use the acceleration not due to gravity to identify the forward motion and associate or align the forward direction with the y axis. The remaining direction may be identified as the sideways direction, which may be associated or aligned with the z axis. Additional activities may then be performed using the now-known orientation of the accelerometer. Other embodiments are described and claimed.

REFERENCES:
patent: 2006/0161079 (2006-07-01), Choi et al.
patent: 2007/0067139 (2007-03-01), Kobayashi et al.
patent: 2007/0233425 (2007-10-01), Fujiwara
patent: 2008/0288200 (2008-11-01), Noble
patent: 2009/0171615 (2009-07-01), Shahabdeen et al.
patent: 2010/0030482 (2010-02-01), Li
Mantyjarvi, et al., “Recognizing Human Motion with Multiple Acceleration Sensors”, IEEE International Conference on Systems, Man, and Cybernetics, 2001. vol. 2, pp. 747-752.
Mizell, et al., “Using Gravity to Estimate Accelerometer Orientation”, Proceedings of the Seventh IEEE International Symposium on Wearable Computers (ISWC '03). Copyright 2003 IEEE. 2 Pages.
Karantonis, et al., “Implementation of a Real-Time Human Movement Classifier Using a Triaxial Accelerometer for Ambulatory Monitoring”, IEEE Transactions on Information Technology in Biomedicine. vol. 10, No. 1, Jan. 2006. pp. 156-167.
Mathie, et al., “Accelerometry: providing an integrated, practical method for long-term, ambulatory monitoring of human movement” Physiological Measurement, vol. 25, Issue 2, pp. R1-R20 (2004).
Tapia, et al., “Activity Recognition in the Home Using Simple and Ubiquitous Sensors”, Lecture Notes in Computer Science. Springer Berlin / Heidelberg. vol. 3001/2004. pp. 158-175.

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