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    • 2. 发明公开
    • 재기록가능형 기록매체에 대해 정보를 판독 및 기록하는방법 및 장치
    • 用于读取和记录可记录记录载体的信息的方法和装置
    • KR1020060033898A
    • 2006-04-20
    • KR1020067000131
    • 2004-06-30
    • 코닌클리케 필립스 엔.브이.
    • 마인더스에르빈알.블루터스에르빈알.
    • G11B7/006G11B7/0055G11B7/0045G11B7/00
    • G11B7/005G11B7/00557G11B7/0062G11B2220/2591
    • The present invention relates to a method and a corresponding device for recording data in the form of marks and for erasing recorded marks in an information layer of a record carrier by irradiating the information layer by means of a pulsed radiation beam, a recorded mark being erased by a sequence of erase pulses (31, 32), said information layer having a phase reversibly changeable between a crystalline phase and an amorphous phase. In order to achieve a significant reduction in power consumption, which is at least important for portable optical drives such as an SFFO drive, it is proposed according to the present invention that at least one of the erase pulses in said sequence of erase pulses (31, 32) has an erase power level which is decreasing with time. The present invention also relates to a method and a device for reading information from a record carrier.
    • 本发明涉及用于以标记的形式记录数据的方法和相应的装置,并且通过利用脉冲辐射束照射信息层来擦除记录载体的信息层中的记录标记,记录标记被擦除 通过一系列擦除脉冲(31,32),所述信息层具有在结晶相和非晶相之间可逆地改变的相位。 为了实现对诸如SFFO驱动器的便携式光驱驱动器至少重要的功耗的显着降低,根据本发明提出了在所述擦除脉冲序列中的至少一个擦除脉冲(31 ,32)具有随时间减小的擦除功率电平。 本发明还涉及从记录载体读取信息的方法和装置。
    • 3. 发明公开
    • 저속 소거가능 및 고속 기록가능한 상변화 매체와, 그매체의 구동장치
    • 在高速下可低速记录的相变介质和用于这种介质的驱动装置
    • KR1020060032148A
    • 2006-04-14
    • KR1020057024722
    • 2004-06-22
    • 코닌클리케 필립스 엔.브이.
    • 마르텐스후베르트반덴에텔라르로날드블루터스러드
    • G11B7/006G11B7/1263
    • G11B7/126G11B7/00454G11B7/00557G11B7/00736G11B7/24082G11B7/268
    • A phase change medium, a device and a method for driving a phase change medium are proposed that allow writing at high speed and erasing at low speed. The proposed low-speed erasing option must be seen as a formatting option that can be applied to the whole medium (or to part of the medium) so as to put the medium (or part of the medium) back to a virgin state. With the invention, direct overwriting of data is not possible: the data have first to be erased at low speed before new data can be written on the medium at high speed. According to the invention, the medium is rotated at a linear velocity that depends on the selected operating mode, the linear velocity applied in the writing mode being much higher than said maximum crystalline velocity, and the linear velocity applied in said erasing mode being equal to or lower than said maximum crystalline velocity. Application: DVD+R high-speed.
    • 提出了一种用于驱动相变介质的相变介质,装置和方法,其允许高速写入并以低速擦除。 所提出的低速擦除选项必须被视为可以应用于整个介质(或介质的一部分)的格式化选项,以便将介质(或介质的一部分)放回原始状态。 通过本发明,直接重写数据是不可能的:在将新数据以高速写入介质之前,数据首先被低速擦除。 根据本发明,介质以取决于所选择的操作模式的线速度旋转,在写入模式下施加的线速度远高于所述最大结晶速度,并且在所述擦除模式中施加的线速度等于 或低于所述最大结晶速度。 应用:DVD + R高速。