Patent ID: 6526051
Filing Date: 2003-02-25
Classification: H04N

Abstract:
A System (1; 49; 65) comprising a data source (2, 4; 50; 66) for supplying an information packet stream, and 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,the data source (2, 4; 50; 66) comprising source means (11, 44) for supplying to the processing device (3; 51; 69) an information packet stream including information packets, which information packets contain digital data coded in accordance with a first coding method and in accordance with a second coding method and representing picture information or sound information or data information, and the system (1; 49; 65) including decoding means (48) adapted to decode digital data contained on the information packets and coded in accordance with the first coding method, characterized in that the system (1; 49; 65) comprises insertion means (37; 62; 71) whichâ€”when digital data coded in accordance with a second coding method are present in the information packetsâ€”are adapted to insert further digital data coded in accordance with the first coding method into further information packets of the information packet stream, the coded further digital data containing picture information or sound information as additional information relating to the digital data contained in the information packets, which digital data are coded in accordance with the second coding method and can therefore not be decoded correctly by the decoding means (48).