| 摘要 |
A data transmission control server is connected to a network, and communicates with a data transmission server, a data transmission auxiliary server, and a client via the network. The data transmission server and the data transmission auxiliary server respectively include: a network interface that transmits data to the client based on a client request; a data transmission information database having stored therein a data identifier for identifying transmission data, a data transmission address for specifying an address of the transmission data, and a data transmission beginning time indicative of a beginning time of data transmission; and a control unit that controls the data transmission server and the data transmission auxiliary server so as to transmit data to the client by transmitting transmission data session information to the data transmission server and the data transmission auxiliary server b a data transmission request from the client.
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