Encoding apparatus and method for encoding sound code, decoding apparatus and methdo for decoding the sound code

A method for generating information by decoding a sound code, the method comprising:

• receiving a sound code output from an encoding apparatus through a sound wave reception unit;
• dividing the sound code depending on a predetermined time interval to generate a plurality of frames;
• identifying a frequency corresponding to each of the plurality of the frames through frequency analysis for each of the plurality of the frames;
• determining a frequency band, to which each of the identified frequencies corresponds, from an audible sound wave frequency band and a non-audible sound wave frequency band, and a plurality of partial information based on the frequency band and each of the identified frequencies;
• and
• generating information corresponding to the sound code based on the plurality of the partial information.

An encoding apparatus for encoding a sound code corresponding to information, the encoding apparatus comprising:

• a partial information generation unit that generates a plurality of partial information corresponding to the information;
• a frequency determination unit that determines a frequency band corresponding to each of the plurality of the partial information from an audible sound wave frequency band and a non-audible sound wave frequency band, and a frequency corresponding to each of the plurality of the partial information within the determined frequency band;
• a sound signal generation unit that generates a plurality of sound signals corresponding to each of the plurality of the frequencies;
• a sound code generation unit that generates the sound code corresponding to the information, by combining the plurality of the sound signals depending on a predetermined time interval;
• and
• an output unit that outputs the generated sound code through a sound wave output device.

A method for encoding a sound code corresponding to information, the method comprising:

• generating a plurality of partial information corresponding to the information;
• determining a frequency band corresponding to each of the plurality of the partial information from an audible sound wave frequency band and a non-audible sound wave frequency band, and a frequency corresponding to each of the plurality of the partial information within the determined frequency band;
• generating a plurality of sound signals corresponding to each of the plurality of the frequencies;
• combining the plurality of the sound signals with one another depending on a predetermined time interval, to generate the sound code corresponding to the information;
• and
• outputting the generated sound code through the sound wave output device.