Patent ID: 6798593
Filing Date: 2004-09-28
Classification: G11B,H03M

Abstract:
A data reproducing apparatus for reproducing data recorded by a recording equipment for recording data on a recording medium, the recording equipment including error correction encoding means for applying error correction coding to input data, first interleaving means for interleaving data supplied from said error correction encoding means for re-arraying the data sequence, and modulation encoding means for performing predetermined modulation encoding on data supplied from said interleaving means; whereby serial concatenated coding is executed between the error correction encoding means and the modulation encoding means, said apparatus comprising:deinterleaving means for interleaving the input data in its sequence for restoring the bit sequence of data re-arrayed by said first interleaving means to a bit sequence of data encoded by said error correction encoding means; error correction decoding means for decoding the error correction codes of data supplied from said deinterleaving means; and second interleaving means for interleaving the sequence of data for interleaving and re-arraying the sequence of data given by a difference between data output from said error correction decoding means and data output from said deinterleaving means based on the same interleaving position information as that of said first interleaving means.