| 摘要 |
PROBLEM TO BE SOLVED: To provide a commercial transaction method for an advertisement presenting enterprise capable of obtaining the secure feedback, accurately analyzing the quantitative effect of an advertisement, and improving the advertisement effect. SOLUTION: An advertisement agency synthesizes the coupon data 902 of an advertisement 910 presented by a retail dealer (an advertiser) with a synthesizing device 904 using a data hiding technology to produce the audio electric signal 903. A broadcaster transmits an advertisement synthesized with this coupon data 902 through a transmitter 906. A consumer extracts the coupon data 902 from the advertisement received by a receiver 900 with an extracting device 910. When the consumer accesses a web server 921 from a personal computer 911, the accumulated point number of the coupon of this consumer is written into the consumer data base 922, and this content can be read through a terminal. device 923. |
