| 摘要 |
According to the present invention, write pulses are optimized without being affected by the level of skill of an engineer. The present invention relates to the optimization of write pulses for an optical disk recording apparatus for recording an optical signal to, e.g., a DVD-R. A common write pulse which does not depend on various recording conditions is initially set. Pulse set positions affecting on recording quality are sequentially determined in accordance with an adjustment sequence, thus obtaining write pulses suitable for an actual operating environment. In each adjustment step, test recording is performed and a jitter value is measured. Based on a margin curve (quadratic approximation curve) of jitter values obtained by measurements, the optimum setting is obtained. This process is repeated every ordered pulse adjustment position. Finally, recording quality including margin is checked, thus optimizing the write pulses.
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