Patent ID: 6931586
Filing Date: 2005-08-16
Classification: G11B,H03M,H04L

Abstract:
1. A burst error correction method in an HD-DVD having data groups encoded therein, adding an inner parity (PI) of e bytes per x segment and an outer parity (PO) of f bytes to an error correction block having a size of n bytes in a row direction X (m X o) bytes in a column direction, the error correction method comprising: obtaining a plurality of PI blocks by segmenting the error correction block in a PI direction into x segments, wherein x is an integer equal to or greater than 2; providing the PO of f bytes to a PO direction of the error correction block; providing the PI of e bytes for each of the plurality of PI blocks to the PI direction of the error correction block, wherein f, which is a number of PO direction parities, and x, which is a number of PI direction segments, are provided so that a result of multiplication of x with f is divided by o, which is a number of data frames in the error correction block, without a remainder, and a recording frame is formable where f is not equal to o.