公开(公告)号：US08593926B2

公开(公告)日：2013-11-26

申请号：US13353474

申请日：2012-01-19

Applicant: Kazuo Watabe ,  Kazuto Kuroda ,  Takashi Usui ,  Hideaki Okano

Inventor： Kazuo Watabe ,  Kazuto Kuroda ,  Takashi Usui ,  Hideaki Okano

IPC: G11B7/00

CPC classification number: G11B7/083 ,  G03H1/2286 ,  G03H2222/34 ,  G11B7/0065 ,  G11B7/09 ,  G11B7/1381 ,  G11B2007/0009

Abstract: An information storage device includes an information recording medium, at least a single light source that emits laser light, an illuminating unit that illuminates substantially the same position of the information recording medium with two light rays generated from the laser light, in different directions, a light detecting unit that detects reflection light of the two light rays reflected from the information recording medium and outputs a detection signal, an operation unit that calculates position error information of the information recording medium based on the detection signal; and, a driving device that changes the position of the information recording medium based on the position error information.

Abstract translation: 信息存储装置包括：信息记录介质，至少一个发射激光的光源;照明单元，其以不同方向从激光产生的两束光照射基本相同位置的信息记录介质; 光检测单元，其检测从信息记录介质反射的两个光线的反射光并输出检测信号;运算单元，其基于检测信号计算信息记录介质的位置误差信息; 以及基于位置误差信息改变信息记录介质的位置的驱动装置。

公开(公告)号：US20120140606A1

公开(公告)日：2012-06-07

申请号：US13353474

申请日：2012-01-19

Applicant: Kazuo Watabe ,  Kazuto Kuroda ,  Takashi Usui ,  Hideaki Okano

Inventor： Kazuo Watabe ,  Kazuto Kuroda ,  Takashi Usui ,  Hideaki Okano

IPC: G11B7/0065

CPC classification number: G11B7/083 ,  G03H1/2286 ,  G03H2222/34 ,  G11B7/0065 ,  G11B7/09 ,  G11B7/1381 ,  G11B2007/0009

Abstract: An information storage device includes an information recording medium, at least a single light source that emits laser light, an illuminating unit that illuminates substantially the same position of the information recording medium with two light rays generated from the laser light, in different directions, a light detecting unit that detects reflection light of the two light rays reflected from the information recording medium and outputs a detection signal, an operation unit that calculates position error information of the information recording medium based on the detection signal; and, a driving device that changes the position of the information recording medium based on the position error information.

Abstract translation: 信息存储装置包括：信息记录介质，至少一个发射激光的光源;照明单元，其以不同方向从激光产生的两束光照射基本相同位置的信息记录介质; 光检测单元，其检测从信息记录介质反射的两个光线的反射光并输出检测信号;运算单元，其基于检测信号计算信息记录介质的位置误差信息; 以及基于位置误差信息改变信息记录介质的位置的驱动装置。

公开(公告)号：US20120051201A1

公开(公告)日：2012-03-01

申请号：US13071592

申请日：2011-03-25

Applicant: Kazuo Watabe ,  Akihito Ogawa ,  Hideaki Okano ,  Takashi Usui

Inventor： Kazuo Watabe ,  Akihito Ogawa ,  Hideaki Okano ,  Takashi Usui

IPC: G11B27/22

CPC classification number: G11B7/00781 ,  G11B7/0065 ,  G11B7/083

Abstract: 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.

Abstract translation: 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

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

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

IPC: G11B7/24 ,  G11B7/007

CPC classification number: G11B7/24035 ,  G11B7/0079 ,  G11B7/1267 ,  G11B7/24038 ,  G11B20/1217 ,  G11B2220/235 ,  G11B2220/2537

Abstract: 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

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

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

IPC: G11B21/08 ,  G11B3/70

CPC classification number: G11B7/24035 ,  G11B7/0079 ,  G11B7/1267 ,  G11B7/24038 ,  G11B20/1217 ,  G11B2220/235 ,  G11B2220/2537

Abstract: 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.

Abstract translation: 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：US20100135436A1

公开(公告)日：2010-06-03

申请号：US12626338

申请日：2009-11-25

Applicant: 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

Inventor： 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: H04L27/04

CPC classification number: G11B20/14 ,  G11B20/0021 ,  G11B20/00579 ,  G11B20/00884 ,  G11B20/1426 ,  G11B2020/1457

Abstract: 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.

Abstract translation: 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

Applicant: Nobuaki Kaji ,  Sumitaka Maruyama ,  Akihito Ogawa ,  Kazuo Watabe

Inventor： Nobuaki Kaji ,  Sumitaka Maruyama ,  Akihito Ogawa ,  Kazuo Watabe

IPC: G11B7/00

CPC classification number: G11B7/1353 ,  G11B7/131 ,  G11B2007/0006

Abstract: 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.

Abstract translation: 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：US07411888B2

公开(公告)日：2008-08-12

申请号：US11530395

申请日：2006-09-08

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

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

IPC: G11B7/24

CPC classification number: G11B20/1217 ,  G11B7/0045 ,  G11B7/00736 ,  G11B7/24038 ,  G11B2007/0013 ,  G11B2020/1227 ,  G11B2020/1228 ,  G11B2020/1268 ,  G11B2020/1277 ,  G11B2020/1278 ,  G11B2020/1287 ,  G11B2020/1298 ,  G11B2220/235 ,  G11B2220/2537 ,  G11B2220/2579

Abstract: An information layer 0 comprises a system lead-in area, data lead-in area, data area, and middle area, an information layer 1 comprises a system lead-out area, data lead-out area, data area, and middle area, an end position of the data area of layer 1 is positioned outer than a start position of the data area of layer 0, the data lead-in area comprises a guard track zone wider than a test zone in the data lead-out area, the data lead-out area comprises a guard track zone wider than a test zone and a management zone in the data lead-in area, the middle area of layer 0 comprises a guard track zone wider than a test zone in the middle area of layer 1, and the middle area of layer 1 comprises a blank zone wider than a test zone in the middle area of layer 0.

公开(公告)号：US20080159349A1

公开(公告)日：2008-07-03

申请号：US11964329

申请日：2007-12-26

Applicant: Nobuaki Kaji ,  Kazuo Watabe

Inventor： Nobuaki Kaji ,  Kazuo Watabe

IPC: H01S5/06 ,  G11B7/00

CPC classification number: G11B7/126 ,  H01S5/06835

Abstract: A semiconductor laser driving device includes a current supply unit supplying current to a semiconductor laser; a first control unit controlling the current supply unit to supply a first current which is half or less of a lasing threshold of the semiconductor laser; and a second control unit controlling the current supply unit to supply a second current which is larger than the lasing threshold after a first time is passed from an edge of a clock signal.

Abstract translation: 一种半导体激光器驱动装置，包括向半导体激光器供电的电流源单元; 第一控制单元，控制电流供应单元以提供半导体激光器的激光阈值的一半或更小的第一电流; 以及第二控制单元，其控制电流供应单元，以在从时钟信号的边缘经过第一次之后提供大于激光阈值的第二电流。

公开(公告)号：US07301878B2

公开(公告)日：2007-11-27

申请号：US10962497

申请日：2004-10-13

Applicant: Hideo Ando ,  Kazuo Watabe

Inventor： Hideo Ando ,  Kazuo Watabe

IPC: G11B20/10 ,  G11B7/24

CPC classification number: G11B27/24 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/00745 ,  G11B20/1217 ,  G11B20/18 ,  G11B27/22 ,  G11B2007/0013 ,  G11B2020/1222 ,  G11B2020/1232 ,  G11B2020/1239 ,  G11B2020/1277 ,  G11B2020/1292 ,  G11B2020/1298 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/235 ,  G11B2220/237 ,  G11B2220/2537 ,  G11B2220/2541 ,  G11B2220/2562 ,  G11B2220/2575 ,  G11B2220/2579

Abstract: This invention achieves high-density recording while preventing recording units from overlapping. Recording is done to form a gap between predetermined recording units. Since this gap is formed, even when a rotation driving mechanism of a medium suffers rotation nonuniformity, two neighboring recording units never overlap each other, and destruction of recording data can be prevented.

Abstract translation: 本发明实现高密度记录，同时防止记录单元重叠。 进行记录以在预定记录单元之间形成间隙。 由于形成该间隙，即使当介质的旋转驱动机构具有旋转不均匀性时，两个相邻的记录单元也不会彼此重叠，并且可以防止记录数据的破坏。