Patent ID: 8301973

Claim:
A transmitter apparatus for broadcasting mobile/handheld (M/H) data, in a form of an 8-level-modulation vestigial-sideband (8-VSB) signal that is intended to be reproduced by M/H receivers and that differs from the form used for broadcasting main service data intended to be reproduced by digital television (DTV) receivers, at least some of which M/H data is transmitted twice at separate times as iterative-diversity (ID) data, said transmission apparatus comprising: an M/H pre-processor for pre-processing said M/H data to generate pre-processed M/H data by randomizing, transverse-Reed-Solomon (TRS) coding, cyclic redundancy check (CRC) coding, outer convolutional coding, and byte-deinterleaving said M/H data, memory included within said M/H pre-processor, respective portions of which said memory temporarily store M/H data for respective RS Frames, each of said respective portions of said memory being read up to two times, said iterative diversity data being generated by reading twice from selected ones of said portions of said memory; an M/H post-processor for post-processing each of said M/H frames, by systematic/non-systematic Reed-Solomon (R-S) coding, convolutional byte-interleaving and modified trellis-coding; and a transmitter connected for receiving said post-processed M/H frames as a modulating signal, wherein a block processor within said M/H pre-processor comprises a ½ code-rate convolutional encoder for outer convolutional coding of randomized M/H data that has been TRS-coded and CRC-coded, and wherein the modified trellis coding within said M/H post-processor comprises ⅔ code-rate trellis coding that cooperates with said outer convolutional coding in such way as to generate parallel concatenated convolutional coding (PCCC) for said randomized M/H data that has been TRS-coded and CRC-coded.