BODY MOTION DETECTION DEVICE, BODY MOTION DETECTION METHOD, AND BODY MOTION DETECTION PROGRAM

Title:

BODY MOTION DETECTION DEVICE, BODY MOTION DETECTION METHOD, AND BODY MOTION DETECTION PROGRAM

Document Type and Number:

WIPO Patent Application WO/2007/097324

Kind Code:

A1

Abstract:

A body motion detection device that can accurately detect a motion of a user’s body according to the direction of the motion without being affected by the position and orientation of the installation of a device body on the body. A control section (110) calculates an acceleration vector which is a detection output from a three-axis acceleration sensor (101) and calculates a gravitational acceleration vector. A predetermined calculation where the calculated gravitational acceleration vector and acceleration vector are taken into account is performed to extract the vertical component included in the acceleration vector. A motion in the vertical direction of the user’s body is accurately detected by analyzing the vertical component.

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Inventors:

MAKINO KENICHI (JP)

Application Number:

PCT/JP2007/053079

Publication Date:

August 30, 2007

Filing Date:

February 20, 2007

Export Citation:

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Assignee:

SONY CORP (JP)
MAKINO KENICHI (JP)

International Classes:

G06M3/00; A61B5/11; G01C22/00; G01P15/18; G06F3/01

Foreign References:

JPH1142220A	1999-02-16
JP2001250123A	2001-09-14
JP2005114537A	2005-04-28
JP2004264060A	2004-09-24
JP2006293861A	2006-10-26

Other References: