Wrist-type body component measuring apparatus and body component measuring method using the same

A wrist-type body component measuring apparatus comprising:

• a band configured to be worn on a user;
• a first input electrode and a first output electrode which are disposed on an inside surface of the band and configured to contact a wrist of the user;
• a second input electrode and a second output electrode which are disposed on an outside surface of the band;
• a measuring unit configured to apply a current to the first and second input electrodes and detect a voltage from the first and second output electrodes to measure a body impedance of the user;
• a plurality of acceleration sensors arranged in a direction perpendicular to a lengthwise direction of the apparatus with a predetermined distance therebetween, and configured to sense whether the band is worn on a left wrist or on a right wrist by using a signal received according to a movement of the user;
• and
• an electrode converter configured to convert a disposition of the first and second input electrodes and the first and second output electrodes according to whether the band is worn on the left wrist or the right wrist of the user.

A wrist-type body component measuring apparatus comprising:

• a band configured to be worn on a user;
• a first input electrode and a first output electrode which are disposed on an inside surface of the band and configured to contact a wrist of the user;
• a second input electrode and a second output electrode which are disposed on an outside surface of the band;
• a measuring unit configured to apply a current to the first and second input electrodes and detect a voltage from the first and second output electrodes to measure a variation of a body impedance of the user when the second input electrode is sequentially touched by different fingers of the user;
• a memory configured to store a reference body impedance variation;
• and
• an electrode converter configured to compare the measured variation of the body impedance of the user to the reference body impedance variation that is stored in the memory and convert a disposition of the first and second input electrodes and the first and second output electrodes according to a comparison between the measured variation of the body impedance of the user and the reference body impedance variation.