Patent ID: 7571243

Claim:
An information terminal comprising: a broadcast wave receiving section for receiving a broadcast wave containing data setting information superimposed on a broadcast program; a name resolution section for performing name resolution in order to find, from a site name, a corresponding address to access; a browsing section for browsing to the address; a storage section for storing look-up data that indicates association of the site name and the address that corresponds to the site name; and an information extracting section for extracting, from the broadcast wave received by the broadcast wave receiving section, the data setting information with which the look-up data is to be updated so as to update the site name and the address corresponding thereto stored in the storage section or to add a site name and an address corresponding thereto in the storage section, wherein the name resolution section performing the name resolution by searching, across the storage section, for the address that corresponds to the site name, and the browsing section browsing to the address found by the name resolution section, and wherein the data setting information includes address look-up information that informs association of URI of a program information providing site and an IP address of a particular site.