Optical recording medium
    21.
    发明授权
    Optical recording medium 有权
    光记录介质

    公开(公告)号:US07063875B2

    公开(公告)日:2006-06-20

    申请号:US10660564

    申请日:2003-09-12

    IPC分类号: B32B3/02

    摘要: An optical disc having a transition linear velocity of 8-11 m/s when irradiating continuous light with 11±1 mW and a wavelength of 660±10 nm using a pickup head with a numerical aperture (NA) of 0.65, and satisfying the following condition: ΔR=|Rb—Ra|≦3% where Rb is a reflectance of an unrecorded area, and Ra is a reflectance of the top of an eye pattern after ten cycles of recording. In one recording mode therefor, the disc is rotated at a constant angular velocity so as to have a linear velocity of 3–4 m/s on an innermost track and a linear velocity of 8–9 m/s on an outermost track. In another mode, the disc is rotated at a constant angular velocity so as to have a linear velocity of 5–6 m/s on an innermost track and a linear velocity of 13–14 m/s on an outermost track.

    摘要翻译: 使用数值孔径(NA)为0.65的拾取头照射11±1mW和波长为660±10nm的连续光时,具有8-11m / s的过渡线速度的光盘,并且满足以下条件 条件:<?in-line-formula description =“In-line Formulas”end =“lead”?> DeltaR = | Rb-Ra | <= 3%<?in-line-formula description =“In-line Formulas” end =“tail”?>其中Rb是未记录区域的反射率,Ra是十次记录周期之后的眼图的顶部的反射率。 在一种记录模式中,盘以恒定的角速度旋转,以便在最内侧的轨道上具有3-4m / s的线速度,在最外侧轨道上具有8-9m / s的线速度。 在另一种模式中,盘以恒定的角速度旋转,以便在最内侧的轨道上具有5-6m / s的线速度,在最外侧轨道上具有13-14m / s的线速度。

    Optical recording medium
    23.
    发明申请
    Optical recording medium 有权
    光记录介质

    公开(公告)号:US20060183052A1

    公开(公告)日:2006-08-17

    申请号:US11397551

    申请日:2006-04-05

    IPC分类号: G11B7/24

    摘要: An optical disc having a transition linear velocity of 8-11 m/s when irradiating continuous light with 11±1 mW and a wavelength of 660±10 nm using a pickup head with a numerical aperture (NA) of 0.65, and satisfying the following condition: ΔR=|Rb−Ra|≦3% where Rb is a reflectance of an unrecorded area, and Ra is a reflectance of the top of an eye pattern after ten cycles of recording. In one recording mode therefor, the disc is rotated at a constant angular velocity so as to have a linear velocity of 3-4 m/s on an innermost track and a linear velocity of 8-9 m/s on an outermost track. In another mode, the disc is rotated at a constant angular velocity so as to have a linear velocity of 5-6 m/s on an innermost track and a linear velocity of 13-14 m/s on an outermost track.

    摘要翻译: 使用数值孔径(NA)为0.65的拾取头照射11±1mW和波长为660±10nm的连续光时,具有8-11m / s的过渡线速度的光盘,并且满足以下条件 条件:<?in-line-formula description =“In-line Formulas”end =“lead”?> DeltaR = | Rb-Ra | <= 3%<?in-line-formula description =“In-line Formulas” end =“tail”?>其中Rb是未记录区域的反射率,Ra是十次记录周期之后的眼图的顶部的反射率。 在一种记录模式中,盘以恒定的角速度旋转,以便在最内侧的轨道上具有3-4m / s的线速度,在最外侧轨道上具有8-9m / s的线速度。 在另一种模式中,盘以恒定的角速度旋转,以便在最内侧的轨道上具有5-6m / s的线速度,在最外侧轨道上具有13-14m / s的线速度。

    Optical recording medium, and method for initializing the optical recording medium
    24.
    发明申请
    Optical recording medium, and method for initializing the optical recording medium 审中-公开
    光记录介质以及用于初始化光记录介质的方法

    公开(公告)号:US20070283378A1

    公开(公告)日:2007-12-06

    申请号:US11714366

    申请日:2007-03-05

    IPC分类号: G11B7/24

    摘要: An optical recording medium including a transparent substrate; and at least one multi-layer information layer located on the transparent substrate and including a phase change recording layer configured to record information by changing its phase between a crystallization state and an amorphous state, a protective layer, and a reflection layer, wherein the average of partial response signal-to-noise ratio (PRSNR) in all data regions of the recording medium is not less than 15.0 after one direct overwriting (DOW1) cycle and the standard deviation of inter-track distribution of PRSNR is not greater than 0.3.

    摘要翻译: 一种包括透明基板的光记录介质; 以及位于所述透明基板上的至少一个多层信息层,并且包括相变记录层,所述相变记录层被配置为通过改变其结晶状态和非晶状态之间的相位来记录信息,保护层和反射层,其中所述平均值 在一次直接重写(DOW 1)循环后,记录介质的所有数据区域的部分响应信噪比(PRSNR)不小于15.0,PRSNR的轨道间分布标准偏差不大于0.3 。

    METHOD FOR DETERMINING OPTIMUM LASER BEAM POWER AND OTICAL RECORDING MEDIUM
    25.
    发明申请
    METHOD FOR DETERMINING OPTIMUM LASER BEAM POWER AND OTICAL RECORDING MEDIUM 审中-公开
    用于确定最佳激光束功率和声波记录介质的方法

    公开(公告)号:US20090046565A1

    公开(公告)日:2009-02-19

    申请号:US12279498

    申请日:2007-02-15

    IPC分类号: G11B7/00 G11B7/26

    摘要: To provide a method for determining an optimum laser beam power for a single-side, dual-layer optical recording medium having first and second information layers, the method including: determining an optimum laser beam power based on a predetermined characteristic value at the time when the number of overwrite cycles on the recording medium is a predetermined value, wherein the method is conducted by an optical recording/reproduction apparatus utilizing optical change, and wherein the first information layer is closer to the laser irradiation side than is the second information layer.

    摘要翻译: 为了提供一种用于确定具有第一和第二信息层的单面双层光学记录介质的最佳激光束功率的方法,所述方法包括:基于预定特征值确定最佳激光束功率, 记录介质上的重写周期数是预定值,其中该方法由利用光学变化的光学记录/再现装置进行,并且其中第一信息层比第二信息层更靠近激光照射侧。

    Phase-change medium usable in phase-difference tracking
    30.
    发明授权
    Phase-change medium usable in phase-difference tracking 有权
    相变介质可用于相位差跟踪

    公开(公告)号:US06741545B2

    公开(公告)日:2004-05-25

    申请号:US10186613

    申请日:2002-07-02

    IPC分类号: G11B724

    摘要: A product for recording information by use of laser light includes a recording layer being able to change between an amorphous state and a crystalline state so as to record information, the recording layer having a thickness falling within a first range defined relative to a wavelength of the laser light, a protection layer having a thickness falling within a second range defined relative to the wavelength of the laser light, a heat releasing layer having a thickness falling within a third range defined relative to the wavelength of the laser light, and a transparent substrate supporting the layers. The first, second, and third ranges are selected such that a phase of the laser light reflected by the amorphous state and a phase of the laser light reflected by the crystalline state have a phase difference larger than a predetermined phase amount.

    摘要翻译: 用于通过使用激光记录信息的产品包括能够在非晶状态和结晶状态之间变化以便记录信息的记录层,所述记录层的厚度落入相对于 激光,具有落在相对于激光的波长限定的第二范围内的厚度的保护层,具有落在相对于激光的波长限定的第三范围内的厚度的散热层,以及透明基板 支持层。 选择第一,第二和第三范围使得由非晶态反射的激光的相位和由结晶状态反射的激光的相位具有大于预定相位量的相位差。