| 摘要 |
PROBLEM TO BE SOLVED: To attain the transmission control of program related information predicting the access tendency of viewers in the future by collecting viewing history information obtained corresponding to the viewing operations of viewers and controlling the transmission conditions of program related information based on that information. SOLUTION: Concerning an EPG system with which the program related information such as the titles, channels and time of multichannel broadcasting programs is displayed on a television monitor 115 of viewer, when the viewer selects a program by operating a remote controller 116 while displaying the EPG information, that viewing history is transmitted through a public telephone line network to a customer management system 102 together with charging information. Based on the collected information, a database center 101 instructs the improvement of density of the EPG information concerning a program with a high audience rating or a promotion program and sends that instruction to an up-link center 107 together with the EPG information and a transmission control signal, etc. The center 107 improves the transmission frequency of the designated EPG information, superimposes it on an AV data stream sent from a program supplier 109 and transmits it toward a satellite 112.
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