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    • 18. 发明授权
    • Method for recording/reproducing dye-based recordable DVD medium and apparatus thereof
    • 用于记录/再现基于染料的可记录DVD介质的方法及其装置
    • US07457216B2
    • 2008-11-25
    • US11447894
    • 2006-06-07
    • Tatsuya TomuraTsutomu SatoSoh NoguchiYasunobu Ueno
    • Tatsuya TomuraTsutomu SatoSoh NoguchiYasunobu Ueno
    • G11B7/00
    • G11B7/126G11B7/00456
    • A recording and reproducing method, wherein, on recording and reproduction of a recordable DVD medium, which has a recording layer containing an organic dye on a substrate having a guide groove with wobble, wherein linear velocity conditions for CLV recording is recorded on the substrate, recording starts at a linear velocity less than a highest linear velocity at the innermost circumference; when the linear velocity is switched over to the highest linear velocity on the way, a comparison is made between an optimum recording power of Po at the highest recording velocity that is temporarily optimized by test-writing in a power measurement area at the outermost circumference and an optimum recording power of Pi at the highest linear velocity that is recorded in the substrate; in the case of Po>Pi, a value given by the formula of “(Po+Pi)/2+(Po−Pi)2Pi” is employed as a recording power with which recording starts at the highest linear velocity; and in the case of Po≦Pi, Pi is employed.
    • 一种记录和再现方法,其中在记录和再现可记录的DVD介质时,其具有包含有机染料的记录层,在具有摆动的引导槽的基板上,其中CLV记录的线速度条件被记录在基板上, 记录以小于最内圆周的最高线速度的线速度开始; 当线速度被切换到最高线速度时,比较在最外围的功率测量区域中通过测试临时优化的最高记录速度的Po的最佳记录功率和 记录在基板中的最高线速度的Pi的最佳记录功率; 在Po> Pi的情况下,采用“(Po + Pi)/ 2 +(Po-Pi)<2> Pi”的公式给出的值作为记录功率, 最高线速度; 并且在Po <= Pi的情况下,使用Pi。