| 摘要 |
A program information providing site sends, a broadcast station, IP address look-up information that informs association of URI of a program information providing site and an IP address of a particular site. The broadcast station broadcasts the IP address look-up information to portable telephones. According to contents of a broadcast program currently on the air, the IP address associated with the URI of the program information providing site is changed. Thereby, the site in association with the broadcast program is dynamically changed. This allows a user to view various sites by accessing to the same URI.
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