Adaptive writing method and circuit for a high-density optical recording apparatus
    11.
    发明公开
    Adaptive writing method and circuit for a high-density optical recording apparatus 审中-公开
    高密度光学记录设备的自适应写入方法和电路

    公开(公告)号:EP1288922A3

    公开(公告)日:2008-12-10

    申请号:EP02079398.0

    申请日:1999-07-21

    IPC分类号: G11B7/125 G11B7/0045

    摘要: An adaptive writing method for a high-density optical recording apparatus and a circuit thereof are provided. The circuit includes a discriminator (102) for discriminating the magnitude of the present mark of the input data and the magnitudes of the leading and/or trailing spaces, a generator (104,108) for controlling the waveform of the write pulse in accordance with the magnitude of the present mark of the input data and the magnitudes of the leading and/or trailing spaces to generate an adaptive write pulse, and a driver (110) for driving the light source by converting the adaptive write pulse into a current signal in accordance with driving power levels for the respective channels. The widths of the first and/or last pulses of a write pulse waveform are varied in accordance with the magnitude of the present mark of input NRZI data and the magnitude of the leading and/or trailing spaces, thereby minimizing jitter to enhance system reliability and performance.

    摘要翻译: 提供了用于高密度光学记录设备的自适应写入方法及其电路。 该电路包括鉴别器(102),用于鉴别输入数据的当前标记的大小和前沿和/或后沿空间的大小;发生器(104,108),用于根据幅度控制写入脉冲的波形 输入数据的当前标记的数量以及引导和/或尾随空间的大小以产生自适应写入脉冲;以及驱动器(110),用于通过将自适应写入脉冲转换为电流信号来驱动光源 驱动各个通道的功率水平。 写入脉冲波形的第一和/或最后一个脉冲的宽度根据输入NRZI数据的当前标记的大小和前导和/或尾随空间的大小而变化,由此使抖动最小化以增强系统可靠性并且 性能。

    Disk having grooves and pits with different depths, and method for manufacturing the disk
    17.
    发明公开
    Disk having grooves and pits with different depths, and method for manufacturing the disk 有权
    具有槽和具有不同深度凹坑板,并为板的制备方法

    公开(公告)号:EP1160775A2

    公开(公告)日:2001-12-05

    申请号:EP01300596.2

    申请日:2001-01-23

    IPC分类号: G11B7/013 G11B7/24 G11B7/26

    摘要: A disc having grooves (10) and pits (15,16) with different depths, and a easy method for manufacturing the same are provided. The disc satisfies the conditions: λ/ 8n ≤ d 3 ≤ λ / 5n where d 3 is a difference in depths between the grooves (10) and the pits (5,16), λ is the wavelength of a light source, and n is the refractive index of the disc. The disc manufacturing method involves depositing photoresist over a glass master. A master is manufactured by forming a first land region and a second land region having different depths by laser cutting with laser beams having different power levels, and by developing the glass master from the cutting of laser. Following this, a father stamper having a groove region and a pit region is stamped from the master, the groove region and the pit region of the father stamper being inverse to those of the master, and then a mother stamper is stamped from the father stamper, the shape of the mother stamper being inverse to the shape of the father stamper. The mother stamper is used to manufacture a disc by injection molding. Reproduction-only pits for DVD-RW can be simply formed without need for etching processes.

    摘要翻译: 本发明提供一种具有盘槽(10)和凹坑(15,16)具有不同的深度,以及用于制造其的简单方法。 盘SATIS外资企业的条件:λ/ 8 N≤维生素D 3≤拉姆达/ 5N其中d 3是在凹槽(10)和所述燃烧器(5.16)之间的深度差,λ-是光源的波长,并且n是 光盘的折射率。 盘制造方法包括沉积光致抗蚀剂在玻璃主。 一个主通过形成第一区域和第二农用国家制造,具有由激光切割用具有不同功率电平的激光束的不同深度的区域,通过从显影激光的切割玻璃母盘。 在此之后,具有凹槽区域和凹坑区域一个父压模从主,凹槽区域和所述父压模为逆的那些主的凹坑区域冲压,然后将母压模从父压模冲压 ,母亲的形状冲压是逆阳模的形状。 母压模用于制造通过注射模制的光盘。 只再生的DVD-RW的坑,可以简单地形成,而不需要蚀刻工艺。

    Optical storage medium and apparatus for manufacturing such an optical storage medium
    20.
    发明公开
    Optical storage medium and apparatus for manufacturing such an optical storage medium 审中-公开
    光存储介质和用于制造这种光存储介质的设备

    公开(公告)号:EP1918924A3

    公开(公告)日:2008-05-28

    申请号:EP08150889.7

    申请日:2002-04-08

    IPC分类号: G11B7/007 G11B7/26

    摘要: An optical storage medium comprising:
    a lead-in area, which comprises a read only area and a readable/recordable area;
    a user data area in which user data is recorded;
    a first wobble formed in the read only area of the lead-in area; and
    a second wobble formed in the readable/recordable area of the lead-in area;
    wherein the user data is transferred with respect to the user data,
    the first wobble is modulated by a first modulation method and the second wobble is modulated by a second modulation method different to the first modulation method and
    the second modulation method comprises a minimum shift keying (MSK) modulation method and a saw tooth wobble (STW) modulation method, and further an apparatus for transferring data with respect to an optical storage medium comprising a lead-in area, which comprises a read only area and a readable/recordable area, and a user data area in which user data is recorded, the apparatus comprising:
    an optical pickup to emit light to transfer data on the storage medium; and
    a controller arranged to control the optical pickup to record data on the user data area,
    wherein user data is transferred with respect to the user data area,
    first data with respect to a first wobble formed in the read only area of the lead-in area is transferred,
    second data with respect to the readable/recordable area, in which a second wobble is formed of the lead-in area is transferred,
    the first wobble is modulated by a first modulation method and the second wobble is modulated by a second modulation method different to the first modulation method and the second modulation method comprises a minimum shift keying (MSK) modulation method and a saw tooth wobble (STW) modulation method.

    摘要翻译: 1。一种光存储介质,包括:导入区域,其包括只读区域和可读/可记录区域; 记录用户数据的用户数据区域; 形成在引入区域的只读区域中的第一摆动; 以及在导入区域的可读/可记录区域中形成的第二摆动; 其中用户数据相对于用户数据被传送,第一摆动通过第一调制方法被调制并且第二摆动通过与第一调制方法不同的第二调制方法被调制,并且第二调制方法包括最小移位键控 (MSK)调制方法和锯齿摆动(STW)调制方法,还涉及用于相对于光存储介质传送数据的设备,该光存储介质包括导入区域,该导入区域包括只读区域和可读/可记录区域, 以及记录用户数据的用户数据区域,所述设备包括:光学拾取器,用于发射光以在所述存储介质上传输数据; 以及控制器,其被设置为控制光学拾取器以在用户数据区域上记录数据,其中用户数据相对于用户数据区域被传送,关于形成在导入的只读区域中的第一摆动的第一数据 传送关于其中由导入区域形成第二摆动的可读/可记录区域的第二数据,第一摆动通过第一调制方法被调制并且第二摆动被第二摆动被第二摆动 (MSK)调制方法和锯齿摆动(STW)调制方法。