DATA PROCESSING DEVICE AND DATA PROCESSING METHOD

摘要

A data processing device and method in which resistance to an error of data can be improved. A demultiplexer (25) rearranges mb bits of code bits and defines the rearranged code bits as b pieces of symbols of symbol bits according to an assignment rule to assign the code bits of an LDPC code to symbol bits representing symbols. The assignment rule defines groups grouped into the code bits and the symbol bits according to error probability as a code bit group and a symbol bit group, respectively, a combination of the code bit group and the symbol bit group of symbol bits to assign the code bits of the code bit group, and the number of bits of code bits and symbol bits. The data processing device and method can be applied to, e.g., a transmission system or the like to transmit an LDPC code.