公开(公告)号：US07190652B2

公开(公告)日：2007-03-13

申请号：US10739089

申请日：2003-12-19

申请人： Ippei Ogawa

发明人： Ippei Ogawa

IPC分类号： G11B7/005

CPC分类号： G11B7/00456 ,  G11B7/1267

摘要： In the disclosed pulse shape modulation method, an amplitude modulation gain for a reproduced signal from an information recording medium that makes the jitter of the reproduced signal become the minimum is specified. Then, it is determined whether the amplitude modulation gain corresponding to the minimum jitter resides within a prescribed range. If the amplitude modulation gain corresponding to the minimum jitter is outside the prescribed range, the pulse shape of the pulsed laser beam is modulated.

摘要翻译： 在所公开的脉冲形状调制方法中，规定了使来自重放信号的抖动的信息记录介质的再现信号的幅度调制增益变为最小。 然后，确定与最小抖动相对应的幅度调制增益是否在规定范围内。 如果与最小抖动相对应的幅度调制增益超出规定范围，则调制脉冲激光束的脉冲形状。

公开(公告)号：US20050041555A1

公开(公告)日：2005-02-24

申请号：US10952918

申请日：2004-09-30

申请人： Ippei Ogawa ,  Takuo Ohishi ,  Takanobu Matsuba

发明人： Ippei Ogawa ,  Takuo Ohishi ,  Takanobu Matsuba

IPC分类号： G11B7/007 ,  G11B7/125 ,  G11B7/24 ,  G11B7/20 ,  G11B5/09 ,  G11B7/00

CPC分类号： G11B7/1267 ,  G11B7/00736 ,  G11B7/24038

摘要： An optical recording medium has a multi-layer structure recording layer portion including plural recording layers provided with tracks for guiding a recording light and being adapted to record data, where recording condition information and recording layer identification information for the recording layers are recorded on the tracks as information signals. Test writing is conducted on a recording layer that is subject to recording to derive a suitable recording condition based on recording condition information that is recorded on the recording layer, and direct recording is conducted according to a direct recording condition.

摘要翻译： 光记录介质具有多层结构记录层部分，该多层结构记录层部分包括设置有用于引导记录光的轨迹的多个记录层，并适于记录数据，其中用于记录层的记录条件信息和记录层识别信息被记录在轨道上 作为信息信号。 在进行记录的记录层上进行测试写入，以基于记录在记录层上的记录条件信息导出合适的记录条件，并根据直接记录条件进行直接记录。

公开(公告)号：US06562432B2

公开(公告)日：2003-05-13

申请号：US09967826

申请日：2001-09-28

申请人： Ippei Ogawa ,  Takuo Ohishi ,  Tohru Yashiro ,  Yumi Mochizuki

发明人： Ippei Ogawa ,  Takuo Ohishi ,  Tohru Yashiro ,  Yumi Mochizuki

IPC分类号： B32B302

CPC分类号： G11B7/24 ,  G11B23/0035 ,  G11B23/08 ,  G11B23/40 ,  Y10T428/21

摘要： The optical recording medium at least a transparent substrate; a reflection layer; and a print layer. The print layer has a multilayer structure in which a plurality of ink layers made from different inks that have different specific gravities are stacked. A sum of products of viscosity &ggr; (in poise) and weight M (in gram) of the ink used to form the ink layer in the print layer satisfies a relation 30≦&Sgr;&ggr;iMi (g·Poise)≦150.

公开(公告)号：US06497935B1

公开(公告)日：2002-12-24

申请号：US09707206

申请日：2000-11-06

申请人： Ippei Ogawa

发明人： Ippei Ogawa

IPC分类号： B32B302

CPC分类号： G11B7/006 ,  G11B7/00454 ,  G11B7/0062 ,  G11B7/0938 ,  G11B7/24079 ,  G11B7/24082 ,  G11B7/24085 ,  G11B7/243 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2585 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B2007/24322 ,  Y10T428/21

摘要： A phase-change optical information recording medium including a substrate and a recording layer provided on the substrate, the recording layer including a phase-change recording material capable of recording information, reproducing recorded information, and erasing recorded information reversibly with reversible phase changes in the phase-change recording material, with successive formation of a recording mark with a low reflectivity and a length of at least one unit extending in an optical recording scanning direction, and a space with a high reflectivity and a length of at least one unit extending in the optical recording scanning direction, wherein information is recorded by a plurality of signals being recorded in the recording layer, each signal constituting a recording mark area including a recording initiation marking portion with (a) a length of at least two times a minimum length of the recording mark and (b) a width (W1) of at least 1.1 times an average width (W2) of the other portion of the recording mark area.

摘要翻译： 一种相变光学信息记录介质，包括设置在基板上的基板和记录层，所述记录层包括能够记录信息，再现记录信息的相变记录材料，以及在所述记录层中可逆相位变化可逆地擦除记录信息 相变记录材料，连续地形成具有低反射率的记录标记和在光学记录扫描方向上延伸的至少一个单元的长度，以及具有高反射率和至少一个单位延伸的长度的空间 光记录扫描方向，其中通过记录在记录层中的多个信号记录信息，每个信号构成包括记录起始标记部分的记录标记区域，该记录标记区域的长度至少为 记录标记和（b）宽度（W1）至少为其平均宽度（W2）的1.1倍 记录标记区域的一部分。