Recording/reproducing apparatus for data packet stream

摘要

A recording/reproducing apparatus for a data packet stream including an extractor (2) for extracting prescribed one or more intended types of data packets from an input packet train in which different types of data packets have been time-division multiplexed with each other so as to output them as the extracted data packets, a recording circuit (5) for recording the extracted data packets, a reproducing circuit (7) for reproducing the extracted data packet recorded by the recording circuit, a dummy packet producer (10) for producing dummy packets which correspond to non-extracted data packet, and an output circuit (9) for outputting an output data packet train which is produced by combining the extracted data packets and the dummy packets in accordance with the order of the packets in the input packet train.