Patent ID: 7102977

Claim:
A recording apparatus for recording information comprising: laser beam driving circuit means for carrying out a method for optically recording information, using an optical recording medium comprising a phase-change recording layer which is capable of assuming an amorphous phase changed from a crystalline phase by the irradiation of a laser beam thereto, thereby optically recording information by forming recording marks therein, wherein when said recording marks are formed in said optical recording medium, said laser beam is modulated into a recording pulse train comprising a plurality of high-power pulses and low-power pulses subsequent to said respective high-power pulses, with a recording frequency ν (ν=1/Tw where Tw is a window width), and wherein said respective high-power pulses have a pulse width comprising (1) a pulse width portion fixed with a time constant (T), and (2) a pulse width portion determined by multiplying said window width (Tw) by a constant, signal generation means for generating a signal corresponding to said time constant, and signal transmission means for transmitting said signal to said driving circuit means.