Patent ID: 8149941

Claim:
A digital broadcast transmitter comprising: a byte-bit converter configured to convert enhanced data bytes into bit units and output enhanced data bits; a first encoder configured to encode each of the enhanced data bits at a code rate of 1/H, wherein H is an integer greater than 1; a deinterleaver configured to deinterleave enhanced data corresponding to the encoded enhanced data bits; a removing unit configured to remove Reed Solomon (RS) parity data place holders inserted in pre-determined positions within enhanced data packets including the deinterleaved enhanced data; a second encoder configured to perform non-systematic RS encoding on the enhanced data packets from which the RS parity data place holders are removed in order to insert RS parity data in the enhanced data packets; and an interleaver configured to interleave data in the RS-encoded enhanced data packets, wherein an output of the interleaver comprises a first data group including rows having a length of 207 bytes, wherein an ith row in the first data group has N consecutive Moving Picture Experts Group (MPEG) header bytes, wherein an input of the interleaver comprises a second data group including rows having a length of 207 bytes, wherein a jth row in the second data group has M consecutive MPEG header bytes, wherein N>M, and wherein i, j, M and N are integers greater than 1.