SYSTEM FOR IMPLEMENTING RUN LENGTH LIMITED CODES

摘要

An apparatus encodes data blocks into code blocks, each code block containing more symbols than its respective data block. The apparatus includes a data block latch (30) for receiving individual data blocks and for dividing each data block into two sub-blocks. An encoder (32) receives one of the data sub-blocks and encodes the first data sub-block as a code sub-block. An interleaver (34, 36), coupled to the encoder (32) and the data block latch (30), combines the code sub-block with the second data sub-block to produce a code block, such that when the code blocks are concatenated with each other to produce a string of code symbols no more than five consecutive occurrences of a particular code symbol are present in the string of code symbols.