Patent ID: 8273021

Claim:
An apparatus measuring skin moisture content, the apparatus comprising: an electrode module to supply a predetermined voltage to a skin of a user and detecting a current signal in the skin of the user; and a measurement control module to measure the skin moisture content and a sweat gland activity of the user using the current signal and a predetermined phase signal generated with respect to the current signal, wherein the measurement control module comprises: a susceptance measurement unit to measure susceptance of a voltage signal by synchronizing the voltage signal and an out-of-phase signal generated from the voltage signal; a conductance measurement unit to measure conductance of the voltage signal by synchronizing the voltage signal and an in-phase signal generated from the voltage signal, wherein the conductance measurement unit measures the conductance simultaneously with the susceptance measurement unit's measurement of the susceptance; and an output unit to simultaneously output sweat gland activity information of the user based on the measured conductance and skin moisture content information of the user based on the measured susceptance, thereby providing skin moisture content information that takes sweat gland activity into account.