DATA PROCESSING DEVICE AND DATA PROCESSING METHOD

摘要

Provided are a data processing device and a data processing method that are configured to improve a tolerance to a data error. A demultiplexer (25) conforms to an allocation rule to allocate code bits of an LDPC code to symbol bits for the expression of symbols. When a code bit of 10 x 2 bits and the (i+1)-th bit from the most significant symbol bit of the 10 x 2 bits of successive two symbols are bi and yi, respectively, the demultiplexer (25) carries out the following replacement by allocating, for example, b0 to y8, b2 to y0, b4 to y1, b6 to y2, b8 to y3, b10 to y4, b12 to y6, b14 to y5, b16 to y9, b18 to y7, b1 to y18, b3 to y10, b5 to y11, b7 to y12, b9 to y13, b11 to y14, b13 to y16, b15 to y15, b17 to y19, and b19 to y17, respectively. The present invention can be applied to a transmission system or the like to transmit the LDPC code, for instance.