| 摘要 |
A system (1; 49; 65) comprising a data source (2, 4; 50; 66) for supplying an information packet stream containing digital data coded in accordance with a first coding method and/or a second coding method, a processing device (3; 51; 69) for processing an information packet stream, and a data sink (4, 5, 6; 52, 53; 67) for receiving an information packet stream comprises insertion means (37; 62; 71), which the insertion means (37; 62; 71) comprise detection means (38) adapted to detect digital data contained in a sub-stream of the information packet stream and coded in accordance with a second coding method and to supply control information upon detection of such data, and a packet stream generator (16) which, when control information appears, is adapted to insert further digital data coded in accordance with the first coding method and containing additional information about the sub-stream into further information packets of the information packet stream. |
