| 摘要 |
A method of providing coupons by using sound data according to the present invention includes the steps of (a) storing at least one of advertisement contents having coupon information inserted into sound data in an audible or a non-audible frequency domain in the form of a sound pattern or a sound code that can be recognized by a wireless terminal device of a user; (b) receiving a request for specific advertisement contents inserted into a web page from a client terminal outputting the web page by the user; and (c) transmitting the specific advertisement contents to the client terminal after searching for the specific advertisement contents. |
