| 摘要 |
A digital copy (DC) to be sent to a specific end subscriber device (SESD) (5-8) in a telecommunications network (TN) is available in that network access device (NAD) (3,4), through which the SESD links to the TN. The DC is sent off with a digital watermark (DW) to the SESD via that NAD, through which the SESD is connected. The DW in the SESD is impressed in the digital copy to be dispatched. An independent claim is also included for a network access device with a connection device for connecting end subscriber devices in a telecommunications network to the telecommunications network. |
