In a transport stream decoder, a plurality of synchronization establishment circuits
receive a plurality of different transport streams and a plurality of input clocks
corresponding thereto, to establish synchronization between the transport streams
and the input clocks. A multiple TS time-division multiplexing circuit receives
outputs of two FIFO memories, converts a plurality of transport stream signals
into time-division multiplexing signals synchronizing with an internal processing
clock, and provides an addition of a TS identification signal indicating which
one of the transport streams corresponds to each time-division multiplexing signal.
Therefore, a TS decoder with suppressed circuit scale can be provided even when
different types of transport streams are handled.