Patent ID: 7924674

Claim:
A method of recording data corresponding to a channel modulated data mark of length nT in an optical recording medium, the method comprising: generating a single-pulse type recording pattern including a first pulse comprising a first power level, a second pulse comprising a second power level lower than the first power level, and a cooling pulse comprising a third power level lower than the second power level, based on information on the recording pattern; and recording data according to the recording pattern on the optical recording medium, wherein the information on the recording pattern comprises: information regarding the length of the first pulse, information regarding a start point of the first pulse which is determined from a point 1T into the channel modulated data mark, information regarding an end point of the second pulse which is determined from a point (n−1)T into the channel modulated data mark, and information regarding an end point of the cooling pulse which is determined from a point nT into the channel modulated data mark, and wherein: T is a time period of a clock pulse, and n is an integer greater than 1.