Patent ID: 7496821

Claim:
A Digital Video Broadcasting system comprising a broadcast network provider comprising: means for calculating parity information dependent on first digitally coded information comprising IP datagrams; means for generating second digitally coded information, said second digitally coded information comprising said first digitally coded information arranged in an application data table and said parity information arranged in a forward error correction coding data table; and an output for delivering said second digitally coded information; a relay arrangement for receiving said second digitally coded information and for relaying said second digitally coded information; a receiving unit for receiving digitally coded information, said receiving unit comprising: means for extracting parity information from the received digitally coded information; means for extracting a unit of information corresponding to said first digitally coded information, wherein said unit of information may contain erroneous information so that said unit of information is non-identical to said first digitally coded information; means for generating third digitally coded information in dependence on said unit of information and said extracted parity information; and a protocol stack comprising an IP layer being used for communication between the broadcast network provider and the receiving unit, and forward error correction being handled below said IP layer.