公开(公告)号：US07177263B2

公开(公告)日：2007-02-13

申请号：US10698422

申请日：2003-11-03

申请人： Masahiro Kato ,  Eiji Muramatsu ,  Atsushi Yamaguchi ,  Shoji Taniguchi

发明人： Masahiro Kato ,  Eiji Muramatsu ,  Atsushi Yamaguchi ,  Shoji Taniguchi

IPC分类号： G11B7/24

CPC分类号： G11B7/00718 ,  G11B7/00736 ,  G11B7/24085 ,  G11B7/261 ,  G11B27/24 ,  G11B27/3027 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2562 ,  Y10T428/21

摘要： A recording medium comprises pairs of groove tracks and land tracks provided side by side while being bent periodically, a plurality of land prepits previously formed on the land tracks and carrying information about the groove tracks, and a recording layer formed on at least the groove tracks and the land tracks. The land prepits have a radius of mean curvature smaller than a radius of mean curvature of sides of the groove tracks in land-prepit absent regions of the land prepits and are defined by curved surfaces continuously extending from the sides of the groove tracks. Those sides of the groove tracks which face the continuous curved surfaces of the land prepits are curved surfaces that stricture the groove tracks.

摘要翻译： 一种记录介质包括一对槽周边并且周期性地弯曲设置的槽轨道和槽脊轨迹，预先形成在槽脊轨道上并携带关于槽轨道的信息的多个焊盘预制坑以及至少形成在槽轨道上的记录层 和陆地轨道。 平面预制凹坑的平均曲率半径小于陆地预制凹坑的陆地预制凹坑区域中凹槽轨迹的平均曲率半径，并且由凹槽轨道的侧面连续延伸的曲面限定。 凹槽轨道的面对凹坑预凹坑的连续弯曲表面的那些侧面是使凹槽轨道缩窄的曲面。

公开(公告)号：US06687214B2

公开(公告)日：2004-02-03

申请号：US09923804

申请日：2001-08-08

申请人： Masahiro Kato ,  Eiji Muramatsu ,  Atsushi Yamaguchi ,  Shoji Taniguchi ,  Seiro Oshima ,  Makoto Matsukawa ,  Takao Tagiri ,  Kazuhiro Yamato ,  Tatsuhiro Yone

发明人： Masahiro Kato ,  Eiji Muramatsu ,  Atsushi Yamaguchi ,  Shoji Taniguchi ,  Seiro Oshima ,  Makoto Matsukawa ,  Takao Tagiri ,  Kazuhiro Yamato ,  Tatsuhiro Yone

IPC分类号： G11B724

CPC分类号： G11B27/24 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/24085 ,  G11B7/261 ,  G11B27/3027 ,  G11B2220/216 ,  G11B2220/2575

摘要： A recording medium includes pairs of groove tracks and land tracks having periodically formed bent portion provided side by side on a substrate, a plurality of land prepits previously formed on the land tracks and carrying information about the groove tracks, and a recording layer formed on at least the groove tracks and the land tracks. The land prepits have a radius of mean curvature smaller than a radius of mean curvature of sides of the groove tracks in land-prepit absent regions of the land prepits and are defined by curved surfaces continuously extending from the sides of the groove tracks. Those sides of the groove tracks which face the continuous curved surfaces of the land prepits are curved surfaces that stricture the groove tracks. The depth of the land prepit is larger than that of the groove track.

摘要翻译： 记录介质包括：一对沟槽轨道和具有周期性地形成的在基板上并排设置的弯曲部分的槽脊轨迹，多个预先形成在槽脊轨道上的焊盘预制坑，并且携带关于凹槽轨道的信息，以及形成在其上的记录层 至少凹槽轨道和槽脊轨道。 平面预制凹坑的平均曲率半径小于陆地预制凹坑的陆地预制凹坑区域中凹槽轨迹的平均曲率半径，并且由凹槽轨道的侧面连续延伸的曲面限定。 凹槽轨道的面对凹坑预凹坑的连续弯曲表面的那些侧面是使凹槽轨道缩窄的曲面。 土地预制坑的深度大于凹槽轨道的深度。

公开(公告)号：US06599607B1

公开(公告)日：2003-07-29

申请号：US09544551

申请日：2000-04-06

申请人： Toshihiko Takishita ,  Masahiro Kato ,  Eiji Muramatsu ,  Kunihiko Horikawa ,  Shoji Taniguchi ,  Atsushi Yamaguchi

发明人： Toshihiko Takishita ,  Masahiro Kato ,  Eiji Muramatsu ,  Kunihiko Horikawa ,  Shoji Taniguchi ,  Atsushi Yamaguchi

IPC分类号： B32B302

CPC分类号： G11B7/00745 ,  Y10T428/21

摘要： An optical recording medium is designed to generate a read signal free from waveform distortion during reproduction of information. The optical recording medium is formed with information tracks on which data pits carrying information data is to be formed, and prepit tracks previously formed with a plurality of prepits. Each of the information tracks and each of the prepit tracks are positioned adjacent to each other, and each of the prepits is formed to be spaced apart from adjacent information tracks in at least its bottom part.

摘要翻译： 光记录介质被设计成在再现信息期间产生没有波形失真的读信号。 光记录介质形成有要在其上形成承载信息数据的数据坑的信息轨迹，并且预先形成有多个预凹坑的预制轨迹。 每个信息轨道和每个预凹坑轨道彼此相邻定位，并且每个预凹坑形成为至少在其底部部分与相邻信息轨迹间隔开。

公开(公告)号：US07260052B2

公开(公告)日：2007-08-21

申请号：US10701077

申请日：2003-11-05

申请人： Masahiro Kato ,  Tatsuhiro Yone ,  Atsushi Yamaguchi ,  Eiji Muramatsu ,  Shoji Taniguchi ,  Toshihiko Takishita ,  Seiro Oshima ,  Takao Tagiri

发明人： Masahiro Kato ,  Tatsuhiro Yone ,  Atsushi Yamaguchi ,  Eiji Muramatsu ,  Shoji Taniguchi ,  Toshihiko Takishita ,  Seiro Oshima ,  Takao Tagiri

IPC分类号： G11B7/24

CPC分类号： G11B7/24085 ,  G11B7/0053 ,  G11B7/00745 ,  G11B7/0079

摘要： A groove track and a land track are alternately and spirally formed on an information recording medium. On the land track neighboring the groove track, pre-information indicating position information of a track on a disc is formed as a prepit. On the information recording medium, an embossed area is formed so that information about a copyright and for preventing an illegal copy cannot be rewritten. In the embossed area, an embossed configuration including a pit and a space of predetermined depths is formed. The prepit in the embossed area is formed so that the prepit has an optimized configuration according to a pit length and a space length in the embossed area which the prepit neighbors. Consequently, interference between the embossed configuration and the prepit can be prevented even in a case that the prepit is formed in addition to the embossed configuration in the embossed area.

摘要翻译： 凹槽轨道和脊轨道交替地并螺旋地形成在信息记录介质上。 在与凹槽轨道相邻的陆地轨道上，指示盘上的轨道的位置信息的预先信息被形成为预凹坑。 在信息记录介质上，形成压花区域，使得关于版权和防止非法复制的信息不能被重写。 在压纹区域中，形成包括凹坑和预定深度空间的压纹构造。 形成压纹区域中的预凹坑形成为使得预凹坑具有根据凹坑长度和预凹坑邻近的压纹区域中的间隔长度的优化配置。 因此，即使在浮雕区域中除了压花构造之外还形成预凹坑的情况下，也可以防止压花构造与预制坑之间的干涉。

公开(公告)号：US07586823B2

公开(公告)日：2009-09-08

申请号：US10546719

申请日：2004-02-25

申请人： Atsushi Yamaguchi ,  Masahiro Kato ,  Eiji Muramatsu ,  Shoji Taniguchi

发明人： Atsushi Yamaguchi ,  Masahiro Kato ,  Eiji Muramatsu ,  Shoji Taniguchi

IPC分类号： G11B7/0045

CPC分类号： G11B7/0062 ,  G11B7/00456

摘要： In a recording strategy suitable for high-speed recording, a laser driving signal includes a top pulse having a pulse width corresponding to a recording mark length and multi-pulses having a period 3-times larger than a base clock period of a recording mark. The top pulse is has the first identical-shape top pulses when the recording mark length is 3nT (“n” is a natural number), the second identical-shape top pulses when the recording mark length is (3n+1)T, and the third identical-shape top pulses when the recording mark length is (3n+2)T.

摘要翻译： 在适于高速记录的记录策略中，激光驱动信号包括具有对应于记录标记长度的脉冲宽度的顶部脉冲和具有比记录标记的基本时钟周期大3倍的周期的多脉冲。 当记录标记长度为3nT（“n”为自然数）时，顶部脉冲具有第一相同形状的顶部脉冲，当记录标记长度为（3n + 1）T时，第二相同形状的顶部脉冲，以及 当记录标记长度为（3n + 2）T时，第三个相同形状的顶部脉冲。

公开(公告)号：US06687213B1

公开(公告)日：2004-02-03

申请号：US09544547

申请日：2000-04-06

申请人： Toshihiko Takishita ,  Masahiro Kato ,  Eiji Muramatsu ,  Kunihiko Horikawa ,  Shoji Taniguchi ,  Atsushi Yamaguchi

发明人： Toshihiko Takishita ,  Masahiro Kato ,  Eiji Muramatsu ,  Kunihiko Horikawa ,  Shoji Taniguchi ,  Atsushi Yamaguchi

IPC分类号： G11B724

CPC分类号： G11B7/261 ,  G11B7/007 ,  G11B7/24079 ,  G11B7/24082 ,  G11B7/24085

摘要： An optical recording medium which can produce a read signal free from waveform distortion during reproduction of information. The optical recording medium comprises groove information tracks on which information pits carrying information data is to be formed, and prepit tracks provided with a plurality of previously formed land prepits connected to the groove information tracks. The groove information tracks and the prepit tracks are arranged in alternation. The groove information track has a track width smaller in at least a part of each of sections in which the land prepit exists than in sections in which no land prepit exists.

摘要翻译： 一种光学记录介质，其可以在再现信息期间产生没有波形失真的读取信号。 光记录介质包括凹槽信息轨道，在其上将形成载有信息数据的信息坑，以及预先设置有多个预先形成的与凹槽信息轨迹相连的焊盘预制凹坑的轨迹。 凹槽信息轨道和预凹坑轨道交替排列。 沟槽信息轨道在存在土地预制品的每个部分的至少一部分中的轨道宽度小于不存在土地预制物的部分中的轨道宽度。

公开(公告)号：US06679430B2

公开(公告)日：2004-01-20

申请号：US09893731

申请日：2001-06-27

申请人： Masahiro Kato ,  Eiji Muramatsu ,  Atsushi Yamaguchi ,  Shoji Taniguchi

发明人： Masahiro Kato ,  Eiji Muramatsu ,  Atsushi Yamaguchi ,  Shoji Taniguchi

IPC分类号： G06K1906

CPC分类号： G11B7/00718 ,  G11B7/00736 ,  G11B7/24085 ,  G11B7/261 ,  G11B27/24 ,  G11B27/3027 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2562 ,  Y10T428/21

摘要： A recording medium comprises pairs of groove tracks and land tracks provided side by side while being bent periodically, a plurality of land prepits previously formed on the land tracks and carrying information about the groove tracks, and a recording layer formed on at least the groove tracks and the land tracks. The land prepits have a radius of a curvature smaller than a radius of a curvature of sides of the groove tracks in land-prepit absent regions of the land prepits and are defined by curved surfaces continuously extending from the sides of the groove tracks. Those sides of the groove tracks which face the continuous curved surfaces of the land prepits are curved surfaces that stricture the groove tracks.

摘要翻译： 一种记录介质包括一对槽周边并且周期性地弯曲设置的槽轨道和槽脊轨迹，预先形成在槽脊轨道上并携带关于槽轨道的信息的多个焊盘预制坑以及至少形成在槽轨道上的记录层 和陆地轨道。 平坦凹坑预凹坑的曲率半径小于凹槽轨迹的边缘曲率的半径，并且由凹槽轨迹的侧面连续延伸的曲面限定。 凹槽轨道的面对凹坑预凹坑的连续弯曲表面的那些侧面是使凹槽轨道缩窄的曲面。

公开(公告)号：US20060153038A1

公开(公告)日：2006-07-13

申请号：US10546719

申请日：2004-02-25

申请人： Atsushi Yamaguchi ,  Masahino Kato ,  Eiji Muramatsu ,  Shoji Taniguchi

发明人： Atsushi Yamaguchi ,  Masahino Kato ,  Eiji Muramatsu ,  Shoji Taniguchi

IPC分类号： G11B5/09 ,  G11B7/12

CPC分类号： G11B7/0062 ,  G11B7/00456

摘要： In a recording strategy suitable for high-speed recording, a laser driving signal includes a top pulse having a pulse width corresponding to a recording mark length and multi-pulses having a period 3-times larger than a base clock period of a recording mark. The top pulse is has the first identical-shape top pulses when the recording mark length is 3 nT (“n” is a natural number), the second identical-shape top pulses when the recording mark length is (3 n+1)T, and the third identical-shape top pulses when the recording mark length is (3n+2)T.

摘要翻译： 在适于高速记录的记录策略中，激光驱动信号包括具有对应于记录标记长度的脉冲宽度的顶部脉冲和具有比记录标记的基本时钟周期大3倍的周期的多脉冲。 当记录标记长度为3nT（“n”为自然数）时，顶部脉冲具有第一相同形状的顶部脉冲，当记录标记长度为（3 n + 1）T时，第二相同形状的顶部脉冲 ，以及当记录标记长度为（3n + 2）T时的第三相同形状的顶部脉冲。

公开(公告)号：US20080225659A1

公开(公告)日：2008-09-18

申请号：US10586647

申请日：2005-01-18

申请人： Kazuo Kuroda ,  Eiji Muramatsu ,  Kunihiko Horikawa ,  Atsushi Yamaguchi ,  Masahiro Kato ,  Toshio Suzuki

发明人： Kazuo Kuroda ,  Eiji Muramatsu ,  Kunihiko Horikawa ,  Atsushi Yamaguchi ,  Masahiro Kato ,  Toshio Suzuki

IPC分类号： G11B7/00

CPC分类号： G11B7/0045 ,  G11B7/00736 ,  G11B20/10 ,  G11B20/1217 ,  G11B2007/0013 ,  G11B2020/1228 ,  G11B2020/1267 ,  G11B2020/1277 ,  G11B2020/1288 ,  G11B2020/1297 ,  G11B2020/1298 ,  G11B2220/216 ,  G11B2220/235 ,  G11B2220/2566

摘要： A disc-shaped information recording medium has a first and a second recording layer. A buffer area is arranged adjacent to a recording area of each of the layers for preventing deviation of the recording position onto/from each of the layers. A first part of the information is written along a first track path on the first recording layer, a predetermined amount of first buffer data in a part of the buffer area of the first recording layer is written into the first recording layer, and inter-layer jump is performed from the first recording layer to the second recording layer. A predetermined amount of second buffer data in the buffer area of the second recording layer is written in the second recording layer and write element is controlled to write a second part of the information to be recorded, on the second recording layer by changing the recording direction.

摘要翻译： 盘形信息记录介质具有第一和第二记录层。 缓冲区域布置成与每个层的记录区域相邻，用于防止记录位置偏离每个层。 信息的第一部分沿着第一记录层上的第一轨道路径写入，第一记录层的缓冲区的一部分中的预定量的第一缓冲数据被写入第一记录层，并且层间 从第一记录层到第二记录层执行跳转。 将第二记录层的缓冲区中的预定量的第二缓冲器数据写入第二记录层，并且通过改变记录方向来控制写入元件以写入要记录的信息的第二部分在第二记录层上 。

公开(公告)号：US07092351B2

公开(公告)日：2006-08-15

申请号：US10730981

申请日：2003-12-10

申请人： Atsushi Yamaguchi ,  Masahiro Kato ,  Eiji Muramatsu ,  Seiro Oshima ,  Takao Tagiri

发明人： Atsushi Yamaguchi ,  Masahiro Kato ,  Eiji Muramatsu ,  Seiro Oshima ,  Takao Tagiri

IPC分类号： G11B7/24

CPC分类号： G11B20/00594 ,  G11B7/007 ,  G11B7/24085 ,  G11B7/261 ,  G11B20/00086 ,  G11B20/00586 ,  G11B20/00601

摘要： The present invention provides an optical recording medium, in which levels of wobble signals extracted from a recording area formed snakily, a reproduction exclusive area and an impossible area are maintained constant. On DVD-RW, groove tracks are snakily formed on a groove section on which recording information is recorded, and pit strings where a plurality of phase pits wave are arranged on the impossible area and the reproduction exclusive area which prevent illegal copying. On the respective areas, pit depths (groove depths), duty of the pit strings and wobbling amplitudes are set according to predetermined conditions so that the output levels of the wobble signals extracted based on the wobbling amplitudes can be maintained constant on the respective areas. As a result, synchronous control can be made accurately at the time of recording and reproduction on/from the DVD-RW.