A multiplexer 106 conducts time division multiplexing on various data trains input from a digital broadcast reception tuner 103 and various interfaces 104 and 105 while adding packet arrival time correction information. A demultiplexer 109 demultiplexes time division multiplexed data multiplexed by the multiplexer 106, corrects packet arrival time on the basis of the packet arrival time correction information. A PCR correction section 110 corrects a system clock on the basis of the packet arrival time correction information added by the multiplexer 106. As a result, it becomes possible to transfer an MPEG2 stream and other data in concurrent while maintaining program synchronization.