公开(公告)号：EP1590808A1

公开(公告)日：2005-11-02

申请号：EP04703105.9

申请日：2004-01-17

申请人： LG ELECTRONICS INC.

发明人： SUH, Sang Woon ,  KIM, Jin Yong ,  LEE, Jae Jin ,  LEE, Jun ,  KIM, Young Ki

IPC分类号： G11B20/18

CPC分类号： G11B20/1803 ,  G11B20/1866 ,  G11B2020/1272 ,  G11B2020/1287 ,  G11B2020/1823 ,  G11B2020/184 ,  G11B2220/2537 ,  G11B2220/2541 ,  G11B2220/2562 ,  H03M13/1515 ,  H03M13/154 ,  H03M13/1545 ,  H03M13/1575 ,  H03M13/2903 ,  H03M13/2909 ,  H03M13/2915 ,  H03M13/2924 ,  H03M13/293 ,  H03M13/2954

摘要： The present invention relates to a method for encoding and decoding an error correction block, and more particularly to a method for encoding and decoding an error correction block useful for a high-density optical disc. When an error correction block is encoded, a user data block is generated and parity outer information for a vertical data stream within the user data block is generated. Then, parity inner information is generated using an eraser detection code contained in a horizontal data stream or at least one of a syndrome check parity, a sync byte and an indicator flag is generated within the user data block so that an eraser can be declared in the horizontal data stream at a predetermined interval. On the other hand, when the error correction block is decoded, a determination is made as to whether errors are detected from the eraser detection code, the syndrome check parity, etc., and erasers are declared according to a result of the determination.