Apparatus and method for inserting and extracting value added data in transport stream-based MPEG-2 system
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United States of America Patent
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N/A
Issued Date -
Jul 21, 2005
app pub date -
Aug 18, 2004
filing date -
Jan 17, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An apparatus and method for inserting and extracting value added data in a TS (Transport Stream)-based MPEG-2 system is provided to improve the efficiency of the TS-based MPEG-2 system. A transport packet of a transport stream for transmission is checked to determine if it includes a stuffing byte field, on the basis of a header of the transport packet. If the transport packet includes a stuffing byte field, the value added data is inserted into the stuffing byte field, and the resulting transport packet is outputted. On the other hand, a transport packet of a received transport stream is checked to determine if it includes a stuffing byte field, on the basis of a header of the transport packet. If the transport packet includes a stuffing byte field, the value added data inserted in the stuffing byte field is extracted from the transport packet.
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