Optical disc, data-recording apparatus and data-recording method
    12.
    发明授权
    Optical disc, data-recording apparatus and data-recording method 失效
    光盘,数据记录装置和数据记录方法

    公开(公告)号:US06765851B2

    公开(公告)日:2004-07-20

    申请号:US09817304

    申请日:2001-03-26

    IPC分类号: G11B700

    CPC分类号: G11B7/126 G11B7/007

    摘要: An optical disc having a power calibration area for calibrating the power of a data recording laser beam. The power calibration area is provided at an inner peripheral part of the disc and has test areas and count areas. The test areas are provided to accomplish trial writing of data, and the count areas are provided to record data representing the use condition of the test areas. Data is recorded on the optical disc, while calibrating the data recording laser beam. The number of the test areas is increased in accordance with an increase in the recording density of the optical disc. The optical disc may be a double-density CD. In this case, the disc has 800 to 1200 test areas. The test areas have the smallest possible size, and the count areas are provided in the smallest possible number. Therefore, the disc can have sufficiently large data regions. Thus, the power of the data recording laser beam can be therefore adjusted many times. The amount of data that can be recorded on the optical disc therefore increase.

    摘要翻译: 具有用于校准数据记录激光束的功率的功率校准区域的光盘。 功率校准区域设置在光盘的内周部分,并具有测试区域和计数区域。 提供测试区域以完成数据的试写,并提供计数区域以记录表示测试区域的使用条件的数据。 数据记录在光盘上,同时校准数据记录激光束。 根据光盘的记录密度的增加,测试区域的数量增加。 光盘可以是双密度CD。 在这种情况下,光盘有800到1200个测试区域。 测试区域的尺寸尽可能小,并且计数区域以尽可能小的数量提供。 因此,盘可以具有足够大的数据区域。 因此,可以多次调整数据记录激光束的功率。 因此,可以记录在光盘上的数据量增加。