| 摘要 |
<p>A centralized distribution server comprises converter means for embedding content data into a digital delivery stream and transmitting means for transmitting said digital delivery stream to at least one of said subscriber terminals via a forward network channel. The at least one subscriber terminal comprises receiving means for receiving said digital delivery stream from said centralized server and interface means for enabling access to said digital delivery stream and/or the content data embedded therein by a subscriber. According to the invention, the at least one subscriber terminal comprises first means for generating a first acknowledgement (type 1) upon receipt of said digital delivery stream by said receiving means and second means for generating a second acknowledgement (type 2) upon access of the digital delivery stream and/or the content data embedded therein by the user via the interface means, said first and second acknowledgements to be transmitted to the centralized distribution server via a return network channel and said centralized distribution server comprises a feedback management module for receiving said first and second acknowledgements transmitted from said at least one subscriber terminal to the centralized distribution server. Each acknowledgment (type 1 or type 2) sent by each subscriber terminal and received by the centralized distribution server generates a message that proves that the status of the digital delivery stream and/or the content data embedded therein on the subscriber terminal is known by the centralized distribution server and thus confirmed.</p> |
