Portable body fat measurement device, method, and medium, using side-view light sources
First Claim
1. A portable body fat measuring device comprising:
- a light source unit having at least two side-view light sources and a light guiding efficiency optical element to guide an optical signal generated from the at least two side-view light sources to a measuring point at which body fat is measured;
an optical detection unit to detect a scattered optical signal, generated by a scattering of the optical signal irradiated to the measuring point, and to transform the scattered optical signal into an electrical signal; and
an electrical signal calculation unit to calculate body fat information based on the electrical signal,wherein an optical power output of each of the at least two side-view light sources differs according to a distance of a side-view light source from the optical detection unit.
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Accused Products
Abstract
A portable body fat measurement device, method and medium that can accurately measure body fat by using a small optical sensor having a comparatively small cross-section. The device includes a light source unit having at least two side-view light sources and a light guiding efficiency optical element to guide an optical signal generated from the at least two side-view light sources to a measuring point, an optical detection unit to detect a scattered optical signal, generated by a scattering of the optical signal irradiated to the measuring point, and to transform the scattered optical signal into an electrical signal; and an electrical signal calculation unit to calculate body fat information based on the electrical signal.
13 Citations
27 Claims
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1. A portable body fat measuring device comprising:
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a light source unit having at least two side-view light sources and a light guiding efficiency optical element to guide an optical signal generated from the at least two side-view light sources to a measuring point at which body fat is measured; an optical detection unit to detect a scattered optical signal, generated by a scattering of the optical signal irradiated to the measuring point, and to transform the scattered optical signal into an electrical signal; and an electrical signal calculation unit to calculate body fat information based on the electrical signal, wherein an optical power output of each of the at least two side-view light sources differs according to a distance of a side-view light source from the optical detection unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An optical sensor module of a portable body fat measuring device, the optical sensor module comprising:
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a light source unit having at least two side-view light sources and a light guiding efficiency optical element to guide an optical signal generated from the at least two side-view light sources to a body fat measuring point at which body fat is measured; and an optical detection unit to detect a scattered optical signal generated by scattering of the optical signal irradiated to the measuring point to transform the scattered optical signal into an electrical signal, and to forward the electrical signal to an electrical signal calculation unit, wherein an optical power output of each of the at least two side-view light sources differs according to a distance of a side-view light source from the optical detection unit. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method for measuring body fat using a portable light source unit having at least two side-view light sources, a light guiding efficiency optical element, and an optical detection unit, the method comprising:
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guiding at least one light beam generated from the at least two side-view light sources to irradiate a measuring point, the at least two side-view light sources each having an optical power output that differs according to a distance of a side-view light source from the optical detection unit; detecting scattered light, generated by a scattering of the at least one light beam after being irradiated to the measuring point; transforming the scattered light into an electrical signal; and calculating body fat information based on the electrical signal. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. A portable body fat measuring device comprising:
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a light source unit having at least two side-view light sources; an optical detection unit to detect a scattered optical signal, generated by a scattering of the optical signal irradiated to a point at which the body fat is measured, and to transform the scattered optical signal into an electrical signal; and a light cut-off unit to prevent the optical signal from being directly radiated into the optical detection unit without first being irradiated and scattered into a body having subcutaneous fat, wherein an optical power output of each of the at least two side-view light sources differs according to a distance of a side-view light source from the optical detection unit.
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27. A method for measuring body fat using a portable light source unit having at least two side-view light sources each separated a different distance from an optical detector, the method comprising:
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guiding light generated from each of the at least two side-view light sources to irradiate a measuring point the at least two side-view light sources each having an optical power output that differs according to a distance of a side-view light source from the optical detector; and sequentially extinguishing the at least two side-view light sources while continuing to detect light generated by a scattering of the at least one light beam after being irradiated to the measuring point.
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Specification