公开(公告)号：US06850469B2

公开(公告)日：2005-02-01

申请号：US09803104

申请日：2001-03-12

申请人： Akihito Ogawa ,  Toshihiro Sugaya

发明人： Akihito Ogawa ,  Toshihiro Sugaya

IPC分类号： G11B7/007 ,  G11B20/00 ,  G11B20/10 ,  G11B20/12 ,  G11B27/10 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B7/00

CPC分类号： G11B27/3027 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/00745 ,  G11B20/00086 ,  G11B20/10009 ,  G11B20/12 ,  G11B20/1217 ,  G11B20/1258 ,  G11B27/105 ,  G11B27/24 ,  G11B2220/216 ,  G11B2220/235 ,  G11B2220/2562 ,  G11B2220/2575

摘要： An information recording medium has a plurality of stacked recording layers. Each recording layer has a spiral track which defines a plurality of rounds, and at least one index header aligned in the radial direction of the disk to partially intercept the spiral track. The index header has address data of each round of the spiral track, which is formed by embossed pits, and some or all of the index headers of the first and second recording layers are laid out to overlap each other when viewed from the predetermined surface.

公开(公告)号：US20050111343A1

公开(公告)日：2005-05-26

申请号：US11013687

申请日：2004-12-17

申请人： Akihito Ogawa ,  Toshihiro Sugaya

发明人： Akihito Ogawa ,  Toshihiro Sugaya

IPC分类号： G11B7/007 ,  G11B20/00 ,  G11B20/10 ,  G11B20/12 ,  G11B27/10 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B7/24 ,  G11B5/09

CPC分类号： G11B27/3027 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/00745 ,  G11B20/00086 ,  G11B20/10009 ,  G11B20/12 ,  G11B20/1217 ,  G11B20/1258 ,  G11B27/105 ,  G11B27/24 ,  G11B2220/216 ,  G11B2220/235 ,  G11B2220/2562 ,  G11B2220/2575

摘要： An information recording medium has a plurality of stacked recording layers. Each recording layer has a spiral track which defines a plurality of rounds, and at least one index header aligned in the radial direction of the disk to partially intercept the spiral track. The index header has address data of each round of the spiral track, which is formed by embossed pits, and some or all of the index headers of the first and second recording layers are laid out to overlap each other when viewed from the predetermined surface.

摘要翻译： 信息记录介质具有多个层叠的记录层。 每个记录层具有限定多个圆的螺旋轨道，以及沿盘的径向对准的至少一个索引头，以部分地截取螺旋轨道。 索引标题具有由压花凹坑形成的每一圈螺旋形轨道的地址数据，并且当从预定表面观察时，第一和第二记录层的一些或全部索引标题被布置成彼此重叠。

公开(公告)号：US20120051201A1

公开(公告)日：2012-03-01

申请号：US13071592

申请日：2011-03-25

申请人： Kazuo Watabe ,  Akihito Ogawa ,  Hideaki Okano ,  Takashi Usui

发明人： Kazuo Watabe ,  Akihito Ogawa ,  Hideaki Okano ,  Takashi Usui

IPC分类号： G11B27/22

CPC分类号： G11B7/00781 ,  G11B7/0065 ,  G11B7/083

摘要： According to one embodiment, a data reproducing apparatus includes a data recording medium, light source unit, light application unit, photodetector unit and control unit. An address mark string including address marks is formed on the data recording medium. The address marks are spaced from each other by a distance depending on address data. The light application unit is configured to split the light beam into a first branch light beam and a second branch light beam and apply the first and second branch light beams to the address mark string at different angles. The photodetector unit is configured to detect first reflected light beams and second reflected light beams from the address mark string to generate image data. The first and second reflected light beams result from the first and second branch light beams, respectively. The control unit is configured to reproduce address data based on the image data.

摘要翻译： 根据一个实施例，数据再现装置包括数据记录介质，光源单元，光应用单元，光电检测器单元和控制单元。 包括地址标记的地址标记串形成在数据记录介质上。 地址标记根据地址数据彼此间隔一定距离。 光施加单元被配置为将光束分成第一分支光束和第二分支光束，并且以不同的角度将第一和第二分支光束施加到地址标记串。 光检测器单元被配置为从地址标记串检测第一反射光束和第二反射光束以产生图像数据。 第一和第二反射光束分别由第一和第二分支光束产生。 控制单元被配置为基于图像数据再现地址数据。

公开(公告)号：US20110158060A1

公开(公告)日：2011-06-30

申请号：US13045680

申请日：2011-03-11

申请人： Kazuo Watabe ,  Hideo Ando ,  Sumitaka Maruyama ,  Yutaka Kashihara ,  Akihito Ogawa

发明人： Kazuo Watabe ,  Hideo Ando ,  Sumitaka Maruyama ,  Yutaka Kashihara ,  Akihito Ogawa

IPC分类号： G11B7/24 ,  G11B7/007

CPC分类号： G11B7/24035 ,  G11B7/0079 ,  G11B7/1267 ,  G11B7/24038 ,  G11B20/1217 ,  G11B2220/235 ,  G11B2220/2537

摘要： According to one embodiment, an information storage medium in which layer 0 and layer 1 are arranged from a read surface, a system lead-in area, data lead-in area, data area, and middle area are arranged from an inner circumference of the layer 0, and a system lead-out area, data lead-out area, data area, and middle area are arranged from an inner circumference of the layer 1. A guard track zone is arranged on a side of the data area in the data lead-out area, and a reference code zone, R physical format information zone, recording management zone, and drive test zone are arranged in the data lead-in area of the layer 0 and padding of the guard track zone of the data lead-out area is performed after padding of the drive test zone of data lead-in area and recording of the recording management zone.

公开(公告)号：US07924691B2

公开(公告)日：2011-04-12

申请号：US11668835

申请日：2007-01-30

申请人： Kazuo Watabe ,  Hideo Ando ,  Sumitaka Maruyama ,  Yutaka Kashihara ,  Akihito Ogawa

发明人： Kazuo Watabe ,  Hideo Ando ,  Sumitaka Maruyama ,  Yutaka Kashihara ,  Akihito Ogawa

IPC分类号： G11B21/08 ,  G11B3/70

CPC分类号： G11B7/24035 ,  G11B7/0079 ,  G11B7/1267 ,  G11B7/24038 ,  G11B20/1217 ,  G11B2220/235 ,  G11B2220/2537

摘要： According to one embodiment, an information storage medium in which layer 0 and layer 1 are arranged from a read surface, a system lead-in area, data lead-in area, data area, and middle area are arranged from an inner circumference of the layer 0, and a system lead-out area, data lead-out area, data area, and middle area are arranged from an inner circumference of the layer 1. A guard track zone is arranged on a side of the data area in the data lead-out area, and a reference code zone, R physical format information zone, recording management zone, and drive test zone are arranged in the data lead-in area of the layer 0 and padding of the guard track zone of the data lead-out area is performed after padding of the drive test zone of data lead-in area and recording of the recording management zone.

摘要翻译： 根据一个实施例，从读取表面，系统导入区，数据导入区，数据区和中间区布置层0和层1的信息存储介质从 层0，并且从层1的内周布置有系统导出区域，数据导出区域，数据区域和中间区域。保护轨道区域布置在数据区域的一侧 引导区和参考代码区，R物理格式信息区，记录管理区和驱动测试区布置在数据引导区的数据导入区和数据引导区的保护轨道区的填充中， 在填充数据导入区域的驱动测试区域和记录管理区域的记录之后执行输出区域。

公开(公告)号：US07743307B2

公开(公告)日：2010-06-22

申请号：US11455742

申请日：2006-06-20

申请人： Minoru Akiyama ,  Hideki Takahashi ,  Akihito Ogawa ,  Chosaku Noda

发明人： Minoru Akiyama ,  Hideki Takahashi ,  Akihito Ogawa ,  Chosaku Noda

IPC分类号： G06F11/30 ,  G06F11/00 ,  G11B20/10 ,  G11B20/18

CPC分类号： G11B20/1883 ,  G11B2020/1893 ,  G11B2220/20

摘要： In order to select the latest defect management information, the latest selection information first is selected by searching a plurality of selection information areas for a currently active selection information area in which the latest selection information is recorded and subsequently the latest defect management information is obtained by searching a plurality of defect management areas for a currently active defect management area in which the latest defect management information is recorded. If there is no unused defect management area in which defect management information can be alternatively recorded in lieu of the currently active defect management area, recording operation is limited.

摘要翻译： 为了选择最新的缺陷管理信息，首先通过搜索多个选择信息区域来选择最新的选择信息，以选择其中记录有最新选择信息的当前活动选择信息区域，然后通过以下步骤获得最新的缺陷管理信息： 搜索多个缺陷管理区域中记录有最新缺陷管理信息的当前活动缺陷管理区域。 如果不存在缺陷管理信息可替换地记录当前有效缺陷管理区域的未使用的缺陷管理区域，则记录操作受到限制。

公开(公告)号：US20100135436A1

公开(公告)日：2010-06-03

申请号：US12626338

申请日：2009-11-25

申请人： Yuji NAGAI ,  Chosaku Noda ,  Kazuo Watabe ,  Akihito Ogawa ,  Kazuto Kuroda ,  Nobuhisa Yoshida ,  Nobumasa Naito ,  Naoki Morishita ,  Naomasa Nakamura ,  Hideaki Ohsawa ,  Hiroharu Sato ,  Hisashi Yamada ,  Toshihiko Kaneshige

发明人： Yuji NAGAI ,  Chosaku Noda ,  Kazuo Watabe ,  Akihito Ogawa ,  Kazuto Kuroda ,  Nobuhisa Yoshida ,  Nobumasa Naito ,  Naoki Morishita ,  Naomasa Nakamura ,  Hideaki Ohsawa ,  Hiroharu Sato ,  Hisashi Yamada ,  Toshihiko Kaneshige

IPC分类号： H04L27/04

CPC分类号： G11B20/14 ,  G11B20/0021 ,  G11B20/00579 ,  G11B20/00884 ,  G11B20/1426 ,  G11B2020/1457

摘要： According to one embodiment, a first encoder encodes main information, a second encoder encodes sub-information, a first modulator modulates a carrier based on an output of the first encoder, a duplicating module duplicates an output of the second encoder to generate encoded sub-information units, and a second modulator amplitude-modulates an output of the first modulator based on the encoded sub-information units. The second modulator amplitude-modulates with σ/(μ×(2N)1/2) being 0.4 or less, wherein a noise power of a transmission path or a storage medium is σ2, a number of the encoded sub-information units is N, signal levels after amplitude modulation, which correspond to bit 1 and bit 0 of the encoded sub-information units, are A and B, and a level difference A−B is μ.

摘要翻译： 根据一个实施例，第一编码器对主信息进行编码，第二编码器对子信息进行编码，第一调制器基于第一编码器的输出调制载波，复制模块复制第二编码器的输出， 信息单元和第二调制器基于编码的子信息单元对第一调制器的输出进行幅度调制。 第二调制器以＆sgr; /（μ×（2N）1/2）振幅调制为0.4或更小，其中传输路径或存储介质的噪声功率为2，编码子信息的数量 单位为N，对应于编码子信息单元的位1和位0的幅度调制后的信号电平为A和B，电平差A-B为μ。

公开(公告)号：US07668064B2

公开(公告)日：2010-02-23

申请号：US11344956

申请日：2006-01-31

申请人： Nobuaki Kaji ,  Sumitaka Maruyama ,  Akihito Ogawa ,  Kazuo Watabe

发明人： Nobuaki Kaji ,  Sumitaka Maruyama ,  Akihito Ogawa ,  Kazuo Watabe

IPC分类号： G11B7/00

CPC分类号： G11B7/1353 ,  G11B7/131 ,  G11B2007/0006

摘要： According to one embodiment, an optical pickup unit which can record, reproduction and erase information in/from an information recording medium has tracks with different pitches, the dividing means has at least a part of a dividing boundary line placing between an end of a 1st order diffraction light with the largest diffraction angle and an end of a 1st order diffraction light with the smallest diffraction angle of the reflected laser beam.

摘要翻译： 根据一个实施例，可以在信息记录介质中记录，再现和擦除信息的光学拾取单元具有不同间距的轨道，该分割装置具有至少一部分分割边界线，其位于第一 具有最大衍射角的次级衍射光和具有反射激光束的最小衍射角的1级衍射光的末端。

公开(公告)号：US07636287B2

公开(公告)日：2009-12-22

申请号：US10822374

申请日：2004-04-12

申请人： Shuichi Ohkubo ,  Hiromi Honma ,  Masatsugu Ogawa ,  Masaki Nakano ,  Toshiaki Iwanaga ,  Yutaka Kashihara ,  Yuji Nagai ,  Akihito Ogawa

发明人： Shuichi Ohkubo ,  Hiromi Honma ,  Masatsugu Ogawa ,  Masaki Nakano ,  Toshiaki Iwanaga ,  Yutaka Kashihara ,  Yuji Nagai ,  Akihito Ogawa

IPC分类号： G11B7/005 ,  G11B7/00

CPC分类号： G11B20/10009 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/1012 ,  G11B20/10296 ,  G11B20/10481 ,  G11B2020/1288 ,  G11B2220/2541

摘要： Reproduced signals are equalized by the least square technique by using a predetermined number of data samples binarized by a Viterbi decoder. Even when data written on an optical disk is unknown, the data can be equalized in a stable manner and can be reproduced at a low error rate without instability factors such as divergence due to interference.

摘要翻译： 通过使用由维特比解码器二值化的预定数量的数据样本，通过最小二乘法来再现信号。 即使在光盘上写入的数据未知的情况下，数据也可以以稳定的方式进行均衡，并且能够以低错误率再现，而不会引起由于干扰引起的发散等不稳定因素。

公开(公告)号：US07522504B2

公开(公告)日：2009-04-21

申请号：US11418245

申请日：2006-05-05

申请人： Yutaka Kashihara ,  Yuji Nagai ,  Akihito Ogawa

发明人： Yutaka Kashihara ,  Yuji Nagai ,  Akihito Ogawa

IPC分类号： G11B11/00

CPC分类号： G11B20/10009 ,  G11B7/0062 ,  G11B7/00736 ,  G11B20/10055 ,  G11B20/10481

摘要： Signal quality evaluation is performed using a predetermined reproduction signal, a first pattern corresponding to a signal waveform pattern of the reproduction signal, and a given pattern corresponding to the signal waveform pattern of the reproduction signal and being different from the first pattern.

摘要翻译： 使用预定的再现信号，对应于再现信号的信号波形图案的第一图案和与再现信号的信号波形图案对应的给定图案，并且与第一图案不同，执行信号质量评估。