| 摘要 |
The invention relates to control of signal decoding in a set of subscriber receivers belonging to subscribers (s1-s3) of mass distributed coded signals (P1; C1-C17, Cx1-Cx7), such as digital satellite channels, which are conveyed via different distribution resources (D1-D4). By means of a central transmission of control signals (d1-d8) to the subscriber receivers the decoding therein of the signals (P1; C1-C17, Cx1-Cx7) can be controlled, such that during certain periods a signal including a content being directed to each subscriber (s1-s3) can be decoded in the respective subscriber receiver. Thereby commercial messages and other kinds of controlled or interest defined information can be focused to a relevant target group at the same time as the distribution resources (D1-D4) are utilized efficiently.
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