Recording method to generate a box type recording pattern with a first pulse having a first power level and a second pulse having a second power level, and recording apparatus, and optical recording medium for the same

An apparatus for recording data on an optical recording medium, the apparatus comprising:

• a recording waveform generator configured to generate 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 according to a channel modulated data mark of length nT;
• and
• a pickup unit configured to record the recording mark according to the single-pulse type recording pattern,
• 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.

An optical recording medium for a recording and/or reproducing apparatus, the optical recording medium comprising:

• an area where parameter information on a recording pattern is recorded, the parameter information on the recording pattern being used in generating a single-pulse type recording pattern comprising 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, according to a channel modulated data mark of length nT,
• wherein the parameter 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.