公开(公告)号：US20090196142A1

公开(公告)日：2009-08-06

申请号：US12362395

申请日：2009-01-29

Applicant: Keiichiro YUSU ,  Masahiro SAITO ,  Kazuto KURODA ,  Takashi USUI ,  Kazuo WATABE ,  Chosaku NODA ,  Nobuaki KAJI ,  Tsukasa NAKAI

Inventor： Keiichiro YUSU ,  Masahiro SAITO ,  Kazuto KURODA ,  Takashi USUI ,  Kazuo WATABE ,  Chosaku NODA ,  Nobuaki KAJI ,  Tsukasa NAKAI

IPC: G11B7/00

CPC classification number: G11B7/0062 ,  G11B7/126 ,  G11B7/259 ,  G11B2007/24306 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316

Abstract: According to one embodiment, in an information recording medium for which a phase change material is used and in which information is recorded on, reproduced from, and erased from a recording layer by light irradiation, a recrystallization width WR at a periphery of an amorphous recording mark formed on the recording layer by light irradiation, and a recording mark width WA and a track pitch TP satisfy 1.0

Abstract translation: 根据一个实施例，在使用相变材料的信息记录介质中，通过光照射将信息记录在记录层上并从记录层擦除信息的信息记录介质中，在非晶记录周围的再结晶宽度WR 通过光照射在记录层上形成的标记，并且记录标记宽度WA和轨道间距TP满足1.0

公开(公告)号：US20090109816A1

公开(公告)日：2009-04-30

申请号：US12256365

申请日：2008-10-22

Applicant: Takashi Usui ,  Kazuo Watabe ,  Keiichiro Yusu ,  Chosaku Noda ,  Kazuto Kuroda ,  Nobuaki Kaji ,  Masahiro Saito

Inventor： Takashi Usui ,  Kazuo Watabe ,  Keiichiro Yusu ,  Chosaku Noda ,  Kazuto Kuroda ,  Nobuaki Kaji ,  Masahiro Saito

IPC: G11B7/00

CPC classification number: G11B7/00456 ,  G11B7/1267

Abstract: According to one embodiment, a calibration section controls an LD driving section so as to carry out test writing on a recording layer of an optical disc using a light pulse having relaxation oscillation, irradiates the test-written area with a reproduction laser beam so as to detect reflected light, and determine write strategy based on the detected result. A recording process is executed on the optical disc by using the light pulse having relaxation oscillation based on the write strategy determined by the calibration section.

Abstract translation: 根据一个实施例，校准部分控制LD驱动部分，以便使用具有弛豫振荡的光脉冲对光盘的记录层进行测试写入，用再现激光束照射测试写入区域，以便 检测反射光，并根据检测结果确定写入策略。 通过使用基于由校准部确定的写入策略的具有弛豫振荡的光脉冲在光盘上执行记录处理。

公开(公告)号：US07426167B2

公开(公告)日：2008-09-16

申请号：US11563565

申请日：2006-11-27

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

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

IPC: G11B20/12 ,  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：US20080205216A1

公开(公告)日：2008-08-28

申请号：US12039723

申请日：2008-02-28

Applicant: AKIHITO OGAWA ,  Hideo Ando ,  Hideaki Ohsawa ,  Kazuo Watabe ,  Kazuto Kuroda ,  Chosaku Noda ,  Naoki Morishita ,  Nobuaki Kaji ,  Takehiro Hiramatsu

Inventor： AKIHITO OGAWA ,  Hideo Ando ,  Hideaki Ohsawa ,  Kazuo Watabe ,  Kazuto Kuroda ,  Chosaku Noda ,  Naoki Morishita ,  Nobuaki Kaji ,  Takehiro Hiramatsu

IPC: G11B7/0037

CPC classification number: G11B7/00736 ,  G11B7/0045 ,  G11B7/00456 ,  G11B7/005 ,  G11B7/0062 ,  G11B7/1267

Abstract: According to one embodiment, an apparatus which records a signal in a recording medium in which information is written by using a first laser having a first wavelength and from which information is read by using a second laser having a second wavelength longer than that of the first laser, a signal is recorded in the recording medium by using the first laser, and a control section reproduces the signal recorded with the first laser and measures a first amount that is used to calculate a target value for optimization of recording conditions, reproduces a signal recorded with the second laser and measures a second amount for optimization of a reproduction signal, compares the first amount with the second amount, and determines the first amount under the recording conditions where the second amount becomes optimum as a target value for optimization of the recording conditions.

Abstract translation: 根据一个实施例，一种装置，其将信号记录在其中通过使用具有第一波长的第一激光器写入信息的信号并且通过使用具有比第一波长长的第二波长的第二波长从其读取信息的信息 激光，通过使用第一激光将信号记录在记录介质中，并且控制部分再现记录有第一激光的信号，并测量用于计算用于优化记录条件的目标值的第一量，再现信号 用第二激光器记录并测量用于优化再现信号的第二量，将第一量与第二量进行比较，并将第二量变为最佳的记录条件下的第一量确定为用于优化记录的目标值 条件。

公开(公告)号：US07408868B2

公开(公告)日：2008-08-05

申请号：US11562168

申请日：2006-11-21

Applicant: Hideo Ando ,  Kazuo Watabe

Inventor： Hideo Ando ,  Kazuo Watabe

IPC: G11B7/00 ,  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.

公开(公告)号：US07382710B2

公开(公告)日：2008-06-03

申请号：US11562057

申请日：2006-11-21

Applicant: Hideo Ando ,  Kazuo Watabe

Inventor： Hideo Ando ,  Kazuo Watabe

IPC: G11B7/00 ,  G11B20/10

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。

公开(公告)号：US20080117794A1

公开(公告)日：2008-05-22

申请号：US11971676

申请日：2008-01-09

Applicant: Hideo Ando ,  Kazuo Watabe

Inventor： Hideo Ando ,  Kazuo Watabe

IPC: 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。

公开(公告)号：US07352683B2

公开(公告)日：2008-04-01

申请号：US11563556

申请日：2006-11-27

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.

Abstract translation: 信息层0包括系统导入区，数据导入区，数据区和中间区，信息层1包括系统导出区，数据导出区，数据区和中间区， 层1的数据区域的结束位置位于层0的数据区域的开始位置的外侧，数据导入区域包括比数据导出区域中的测试区域宽的保护轨道区域， 数据导出区域包括比测试区域宽的保护轨道区域和数据导入区域中的管理区域，层0的中间区域包括比层1的中间区域中的测试区域宽的保护轨道区域 ，层1的中间区域包括比层0的中间区域中的测试区域宽的空白区域。

公开(公告)号：US07336593B2

公开(公告)日：2008-02-26

申请号：US11562070

申请日：2006-11-21

Applicant: Hideo Ando ,  Kazuo Watabe

Inventor： Hideo Ando ,  Kazuo Watabe

IPC: 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.

公开(公告)号：US07283447B2

公开(公告)日：2007-10-16

申请号：US11528579

申请日：2006-09-28

Applicant: Sumitaka Maruyama ,  Katsuo Iwata ,  Kazuo Watabe

Inventor： Sumitaka Maruyama ,  Katsuo Iwata ,  Kazuo Watabe

IPC: G11B7/00

CPC classification number: G11B7/24056

Abstract: The refractive index of a light transmission layer of an optical disk is set within the range of 1.45 to 1.75, the numerical aperture of a lens emitting laser light which is incident onto the light transmission layer is set to 0.65, and the wavelength range of the laser light is set within the range of 395 to 415 nm. Further, in order that aberrations fall within the range of certain acceptable values, the thickness t of the light transmission layer is set within the range of f(n)−t1≦t≦f(n)+t2, employing constants t1, t2 determined based on an acceptable value of aberration and function f(n) of the refractive index n.

Abstract translation: 光盘的透光层的折射率设定在1.45〜1.75的范围内，入射到透光层上的发射激光的透镜的数值孔径设定为0.65， 激光设定在395〜415nm的范围内。 此外，为了使像差落在某些可接受值的范围内，光传输层的厚度t设定在f（n）-t1 <= t <= f（n）+ t2的范围内，采用常数t1 t2基于像差的可接受值和折射率n的函数f（n）确定。