Apparatus for measuring number of footsteps and method thereof

Details Apparatus for measuring number of footsteps and method thereof Apparatus for measuring number of footsteps and method thereof

2005-10-18

2009-08-11

Frech, Karl D. (Department: 2887)

Registers

Pedometers

C235S375000

Reexamination Certificate

active

07571847

ABSTRACT:
A footstep measuring apparatus and a method thereof are provided. The apparatus includes: a terrestrial magnetism sensor for outputting digital values of each axis according to movements of a body; a reference digital value generator for generating a reference digital value based on N digital values of each axis, (N−1) digital values of each axis, (N−2) digital values of each axis; a reference axis selector for searching N digital value of one axis having a maximum amplitude and selecting the one axis as a reference axis; a digital value determiner for determining whether the N digital value is larger than a reference digital value; and a controller for determining the movement as an ascending movement of one footstep when the N digital value is larger than the reference digital value.

REFERENCES:
patent: 5065414 (1991-11-01), Endou et al.
patent: 6546336 (2003-04-01), Matsuoka et al.
patent: 6594617 (2003-07-01), Scherzinger
patent: 2003/0080869 (2003-05-01), Pellet et al.
patent: 0 908 701 (1999-04-01), None

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