Error correction code block generating method and apparatus and optical storage medium containing error correction code block

A method to generate an error correction code block in a suitable write format of an optical storage medium, the method comprising:

• processing digital data on a byte-by-byte basis and arranging the processed digital data from 0th to (N−1)th columns and from 0th to (M−1)th rows to form (M×N) data blocks;
• arranging the (M×N) data blocks in K rows according to a data transmission sequence to form a matrix block;
• adding a first error correction check word of 2×K bytes to each of N columns, each comprising (K×M) bytes, to form a first codeword of ((K×M)+2×K) bytes;
• adding a second error correction check word of P bytes to each of ((K×M)+2×K) rows, each comprising N bytes, to form a second codeword of (N+P) bytes;
• separating two bytes from the first error correction check word of 2×K bytes in each of the columns;
• and
• adding the separated two bytes after each of the (K×M) rows, to form a write block format of K×(M+2)×(N+P).

An optical storage medium comprising an error correction code block, comprising:

• processing digital data on a byte-by-byte basis and arranging the processed digital data from 0th to (N−1)th columns and from 0th to (M−1)th rows to form (M×N) data blocks;
• arranging the (M×N) data blocks in K rows according to a data transmission sequence to form a matrix block;
• adding a first error correction check word of 2×K bytes to each of N columns, each comprising (K×M) bytes, to form a first codeword of (K×M)+2×K bytes;
• adding a second error correction check word of P bytes to each of ((K×M)+2×K) rows, each comprising N bytes, to form a second codeword of (N+P) bytes;
• separating two bytes from the first error correction check word of 2×K bytes in each of the columns;
• and
• adding the separated two bytes after each of the (K×M) rows, to form a write block format of K×(M+2)×(N+P).

An apparatus to generate an error correction block, the apparatus comprising:

• a data block generation unit processing digital data on a byte-by-byte basis and arranging the processed digital data from 0th to (N−1)th columns and from 0th to (M−1)th rows to form (M×N) data blocks;
• a matrix block generation unit arranging the (M×N) data blocks in K rows according to a data transmission sequence to form a matrix block;
• a first codeword generation unit adding a first error correction check word of 2×K bytes to each of N columns, each comprising (K×M) bytes, to form a first codeword of ((K×M)+2×K) bytes;
• and
• a second codeword generation unit adding a second error correction check word of P bytes to each of ((K×M)+2×K) rows, each comprising N bytes, to form a second codeword of (N+P) bytes.

An apparatus to generate an error correction code block in a suitable write format of an optical storage medium, the apparatus comprising:

• a data block generation unit processing digital data on a byte-by-byte basis and arranging the processed digital data from 0th to (N−1)th columns and from 0th to (M−1)th rows to form (M×N) data blocks;
• a matrix block generation unit arranging the (M×N) data blocks in K rows according to a data transmission sequence to form a matrix block;
• a first codeword generation unit adding a first error correction check word of 2×K bytes to each of N columns, each comprising (K×M) bytes, to form a first codeword of ((K×M)+2×K) bytes;
• a second codeword generation unit adding a second error correction check word of P bytes to each of ((K×M)+2×K) rows, each comprising N bytes, to form a second codeword of (N+P) bytes;
• and
• a write format generation unit separating two bytes from the first error correction check word of 2×K bytes in each of the columns and adding the separated two bytes after each of the (K×M) rows, to form a write block format of K×(M+2)×(N+P).

A method to generate an error correction code (ECC) block, comprising:

• processing digital data on a byte-by-byte basis and arranging the processed digital data from 0th to (N−1)th columns and from 0th to (M−1)th rows to form (M×N) data blocks;
• arranging the (M×N) data blocks in K rows according to a data transmission sequence to form a matrix block;
• adding a first error correction check word of 2×K bytes to each of N columns to form a first codeword of ((K×M)+2×K) bytes;
• and
• adding a second error correction check word of P bytes to each of ((K×M)+2×K) rows to form a second codeword of (N+P) bytes, wherein the ECC block comprises a length smaller than an inner-most circumference of a small optical storage medium to improve error correction capability when data is read.