| 摘要 |
<p>Provided is an information-providing system whereby a variety of information can be provided using a sound to a portable terminal device used by a user. The information-providing system includes a sound output device outputting, as a sound wave, identifying information modulated into a sound signal, an identifying-information resolution server, connected to an information-communication network, for identifying, based on the identifying information, address information for accessing a content server connected to an information-communication network; and a portable terminal device including a sound receiving section for receiving the sound wave outputted by the sound-emitting device, a demodulating section for demodulating the identifying information from the received sound wave, a resolution section for sending the demodulated identifying information to the identifying-information resolution server and acquiring the address information, and an accessing section for accessing the content server using the acquired address information.</p> |
