Method and apparatus for generating error correction codes for data recorded on high density optical medium and correcting error using the codes

摘要

the present invention, a high-density optical recording medium from the data error correction code generated by this method and error correction method , and relates to an apparatus, wherein the data error correction code generation method, a data string of a predetermined length is input radix (Odd) and excellent (Even) by separating the heat data, a step of generating a corresponding inner parity to each ; Interleaved with each other by a respective inner parity and the generated, a second step of adding the data sequence of the predetermined length to the parity information for error correction; And the parity information is added, consists of including the third step of recording a data sequence of the predetermined length while maintaining the input time sequence, the digital data read out from the high-density optical recording medium such as high density DVDs (HD-DVD) recording the amount of the additional parity for error correction to be recorded while keeping the same manner as general DVDs, and the error correction capability can be improved more than twice doemeun course, the syndrome calculation at high speed is enabled, the hardware configuration for error correction Simplify and will be very useful to be able to keep most of inventors compatibility with error correction blocks used in a typical DVDs (DVD).