Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2008-01-08
2008-01-08
Deb, Anjan (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C324S715000, C600S547000
Reexamination Certificate
active
11242899
ABSTRACT:
A method and apparatus for measuring body fat using bioelectrical impedance, that reduces measurement errors and improves repeatability by compensating for variation of a contact voltage caused by variation of an electrode contact area. The method includes: detecting a voltage across the voltage electrodes under a first conditional pressure and a second conditional pressure to obtain a first conditional voltage and a second conditional voltage; determining the conditional pressures, a difference between the conditional pressures, the conditional voltages, and a difference between the conditional voltages to store them in a memory; detecting a measurement voltage under an arbitrary pressure; performing interpolation by using the conditional pressures, the difference between the conditional pressures, the conditional voltages, the difference between the conditional voltages, and the arbitrary pressure to obtain a contact voltage; and compensating the measurement voltage for the contact voltage to calculate a body fat value corresponding to the compensated measurement voltage.
REFERENCES:
patent: 6188925 (2001-02-01), Kawanishi et al.
patent: 6509748 (2003-01-01), Cheng
patent: 6906533 (2005-06-01), Yoshida
Kim Kyung-Ho
Park Jeong-Je
Park Kun-kook
Deb Anjan
He Amy
Samsung Electronics Co,. Ltd.
Sughrue & Mion, PLLC
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