Importance

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Abstract

The invention provides an information network system and a broadcasting receiving user terminal by which bidirectional communication can be established between a user terminal and a data base center and between the data base center and a broadcasting station so that a user can enjoy a service provided from the data base center and enjoy bidirectional communication in regard to broadcasting. The information network system includes a broadcasting receiver, a user terminal, and a data base center connected to the user terminal by a network. The broadcasting center includes a guide information addition section which adds data base accessing guide information to a broadcasting signal for a program to be transmitted. The user terminal includes a guide information extraction section which extracts the guide information from the broadcasting signal, and a network communication section which accesses a data base of the data base center via the network based on the extracted guide information and user information peculiar to a user of the user terminal and receives a response from the data base center. The data base center includes another network communication section which confirms the guide information and the user information received from the user terminal via the network and then establishes bidirectional communication with the user terminal.

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First Claim