| 摘要 |
<p>Provided are a method, an apparatus, a server and a computer program product for providing information using a sound signal. The method for providing the information according to the present invention comprises the steps of (a) generating an electric signal having a sort, a pattern and a strength of a frequency matched with a specific recognition target; (b) converting the generated electric signal into a sound signal; and (c) transmitting the converted sound signal, wherein, in the step (a), the sort, the pattern and the strength of the frequency is coded to generate the electric signal, and in the step (c), the sound signal is transmitted as far as a transmission distance corresponding to the strength.</p> |
