TRELLIS ENCODER FOR ENCODING A DUAL TRANSMISSION STREAM

摘要

A trellis encoder for encoding a dual transport stream is provided to perform initialization in suitable timing and perform the trellis encoding of the transport stream. The first multiplexer(111) selectively outputs one of the first bit in a transport stream and a storing value stored in the first memory(115) according to an external control signal. The first adder(113) adds the output value outputted from the first multiplexer and the storing value stored in the first memory, and stores the added result value in the first memory. The second multiplexer(112) selectively outputs one of the second bit in the transport stream and a storing value stored in the second memory(116) according to the external control signal. The second adder(114) adds the output value of the second multiplexer and the storing value stored in the second memory, and stores the added result value in the third memory(117).