Patent ID: 7633847
Filing Date: 2009-12-15
Classification: G11B

Abstract:
1. A recording apparatus, comprising: laser means for performing laser beam irradiation with a supplied driving pulse to form a recording data row on a recording medium, said data row being formed of pits and lands; driving pulse generating means for generating pulses in accordance with recording data to be recorded, said pulses including a first recording power level portion for irradiating the laser means at a first recording power level, a second recording power level portion to be combined with a leading edge of the first pulse portion for irradiating the laser means at a second recording power, and a third recording power level portion to be combined with a trailing edge of the first pulse portion for irradiating the laser means at a third recording power, wherein said second and third recording power levels are larger than said first recording power level; and pulse generation control means for controlling at least one of the first, second, and third pulse portions generated by said driving pulse generating means so that at least one of a level and a portion width thereof is varied in accordance with a length of at least one of a pit and a land to be formed.