METHOD FOR DETERMINING OPTIMUM RECORDING POWER OF OPTICAL RECORDING MEDIUM AND RECORDING/REPRODUCING APPARATUS USING THE SAME

摘要

A method for determining the recording power of an optical recording medium and an optical recording and reproducing apparatus to which the method is applied are provided to accurately obtain the optimum recording power although the optical recording power is located in a saturation area of a characteristic curve of a recording signal by determining the optimum recording power by using a saturation point or a differential value of the characteristic curve of the recording signal. A recording signal is recorded in a non-write area of a PCA(Power Calibration Area) which is an area for correcting recording power by using certain recording power(301,305). A characteristic of the recording signal is measured(307). It is judged whether the measured characteristic of the recording signal has a saturation area(309). When the characteristic of the recording signal has the saturation area, the recording power of a saturation point of the recording signal characteristic is calculated(313). A value in which a predetermined certain value is multiplied by the recording power of the saturation point is determined as the optimum recording power(315).