Broadcast data distribution system with asymmetric uplink/downlink bandwidths

(57) In the broadcast which has asymmetrical uplink / down-link bandwidth, and a multicasting broadcast network, a summary broadcast data distributed system distributes the directory about selection of viewing-and-listening selections, and index information data. The example of such a system contains a digital-broadcasting satellite (DBS) and a cable TV (CATV) system. The embodiment with the present more desirable invention in details, In a directory server, arrange a shared directory resource simultaneously, and this directory server, Directory クライアントヘ offer of the facilities of a technical improvement can be made through storing multiplexing, and it is assumed that this directory client is smaller and has different species, and a memory with slower progress and a processing resource more. The directory information stored in the directory client is a subset of the information maintained in the directory server selected based on a member's taste. The purpose profile for each purpose object (program) it is broadcast that this system is, And the "purpose profile taste summary" about each member is built automatically, and this purpose profile taste summary describes a member's taste level in the purpose object of various types. Next, in order that a system may generate the order attachment list of a rank customized about the member of the purpose object which is likely to be most interested for each member, By evaluating the purpose profile to a member's purpose profile taste summary, the member can choose from these purpose objects that were automatically chosen from the superfluous purpose object which can be used on a data distributed system by this system and that have relation potentially.