Bio-signal detection apparatus, operating method of bio-signal detection apparatus, and user terminal comprising bio-signal detection apparatus capable of learning arrangement of bio-signal sensing electrodes

An operating method of a biosignal detection apparatus including a plurality of electrodes, the operating method comprising:

• obtaining a biosignal through arbitrary electrodes of the plurality of electrodes of the biosignal detection apparatus;
• determining, based on a number of the arbitrary electrodes along at least one direction of a sensor unit of the biosignal detection apparatus, a response time (RT) during which the arbitrary electrodes obtain the biosignal;
• based on identifying a time within a period of the RT during which a waveform of the biosignal obtained by at least one of the arbitrary electrodes is determined to reach a stabilization, determining a variability of the biosignal obtained by the arbitrary electrodes;
• and
• based on the RT during which the arbitrary electrodes obtain the biosignal and the variability of the obtained biosignal satisfying a predetermined reference, determining an arrangement of the arbitrary electrodes and learning the determined arrangement of the arbitrary electrodes.

A user terminal comprising:

• a sensor unit comprising a plurality of electrodes configured to obtain a biosignal;
• memory storing one or more instructions;
• and
• one or more processors configured to execute the one or more instructions to:
• determine, based on identifying a number of arbitrary electrodes of the sensor unit, a response time (RT) during which the arbitrary electrodes of the plurality of electrodes obtain the biosignal,
• based on identifying a time within a period of the RT during which a waveform of the biosignal obtained by at least one of the arbitrary electrodes is determined to reach a stabilization, determine a variability of the biosignal obtained by the arbitrary electrodes, and
• based on the RT during which the arbitrary electrodes obtain the biosignal and the variability of the obtained biosignal satisfying a predetermined reference, determine and learn an arrangement of the arbitrary electrodes.