| 摘要 |
The invention provides an IP stream communicating system having a receiving apparatus which, when a reception IP (Internet Protocol) stream is inputted, performs at a reception processing timing at least FEC (Forward Error Correction) decoding processing that takes place immediately after reception of the reception IP stream, the IP stream receiving apparatus including: a PCR extracting circuit which extracts a PCR (Program Clock Reference) that has been periodically added into the reception IP stream; an RTP (Real-time Transport Protocol) information extracting circuit which extracts RTP information from an RTP header in the reception IP stream; and a sync calculating circuit which generates block sync of the FEC decoding processing based on PCR information extracted by the PCR extracting circuit and the RTP information extracted by the RTP information extracting circuit.
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