| 摘要 |
PROBLEM TO BE SOLVED: To display various information on a terminal, such as a smartphone, without causing load on a server, or execute various processing.SOLUTION: A terminal receives watermarked broadcast audio from an image receiver/recording reproducer (S201). The terminal detects watermark data from the broadcast audio, and stores content ID included in the watermark data, broadcasting time, and broadcast audio detection time in a watermark data table in the terminal (S203). The terminal refers to the watermark data table, and refers to a link server when a difference between the detection time and the broadcast time is equal to or less than a predetermined value (S205). The link server transmits reference data (URL or a command) specified in association with the content ID in the link table. The terminal displays a page of the received reference data or executes processing specified by the reference data (S209). |
