Patent ID: 7450035
Filing Date: 2008-11-11
Classification: G11B,H03M

Abstract:
1. A method for processing data recorded on a recording layer in an information storage medium, the method comprising: performing a modulation operation of source data into a modulated code stream of code words where a minimum run length limit is confined to “d” and a maximum run length limit is confined to “k”, wherein “d” and “k” are positive integers, wherein, the modulation operation includes changing at least one of a code word A and a code word B into another code word so that a sum of an endzero of the code word A and a leadzero of a code word B is greater than or equal to the minimum run length limit and is less than or equal to the maximum run length limit when the code word B is connected to a code word A, the code word A is a preceding code word, wherein the endzero is a number of successive zeros from least significant bits (LSBs) of the code word A to most significant bits (MSBs) and the leadzero is a number of successive zeros from most significant bits (MSBs) of the code word B to least significant bits (LSBs).