Identification system device

An identification system device comprising:

• a memory unit configured to store identification information;
• a processor coupled to the memory unit and configured to:
• generate a plurality of identification elements based on sound information including a frequency of a sound source or a frequency of a sound emitted from the sound source;
• generate an identification (ID) based on the sound information;
• generate the identification information by associating the ID with a plurality of the identification elements, wherein the identification elements include at least one of an intonation of the sound source, an accent of the sound source, brain activity of the sound source, or a strength of exhaled breath of the sound source;
• compare the identification information stored in the memory unit with a plurality of newly generated identification elements to determine whether or not both are sound information from the same sound source, and
• wherein in response to the processor determining that both are source information from the same sound source, the processor is configured to generate a new ID related to the ID of the identification information stored in the memory unit determined to be the same sound source, and the generate a new identification information by associating the new ID with the plurality of newly generated identification elements.