Patent ID: 6728923
Filing Date: 2004-04-27
Classification: G11B

Abstract:
Apparatus comprising:an input for receiving a data stream of information; error correction encoding means for error correction encoding portions of the data stream of information so as to obtain blocks of error correction encoded information, a block of error correction encoded information containing n ordered sync blocks, each sync block containing a sync word and a portion of the error correction encoded information, where n is a positive integer larger than 3, the error correction encoding means supplying said sync word to each sync block such that each of said sync words is one of m mutually different sync words, such that each sequence of two sync words of corresponding two sync blocks of the n sync blocks is unique with respect to the bit patterns therewithin, said corresponding two sync blocks being consecutive sync blocks, m being an integer for which 2an output for supplying the blocks of error correction encoded information.