公开(公告)号：US08757808B2

公开(公告)日：2014-06-24

申请号：US13213694

申请日：2011-08-19

申请人： Nobuaki Kaji

发明人： Nobuaki Kaji

IPC分类号： G03B21/00

CPC分类号： G03B21/2053 ,  G03B21/2033 ,  G03B33/08 ,  H04N9/3111 ,  H04N9/3144 ,  H04N9/3173

摘要： An aspect of the present embodiment, there is provided a projector, including a first optical source fixed on a first mount substrate, the first optical source emitting a first light, a second optical source fixed on the first mount substrate being apart from the first optical source for a first distance, the second optical source emitting a second light, a third optical source fixed on a second mount substrate, the third optical source emitting a third light, an emission period of the third light being set between an emission period of the first light and an emission period of the second light.

摘要翻译： 本实施例的一个方面，提供了一种投影仪，包括固定在第一安装基板上的第一光源，发射第一光的第一光源，固定在第一安装基板上的与第一光学元件分离的第二光源 第一光源，第二光源，第二光源，固定在第二安装基板上的第三光源，发射第三光的第三光源，将第三光的发射周期设置在第二光的发射周期之间， 第一光和第二光的发射周期。

公开(公告)号：US20090109815A1

公开(公告)日：2009-04-30

申请号：US12260920

申请日：2008-10-29

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

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

IPC分类号： G11B7/00

CPC分类号： G11B7/00456 ,  G11B7/1267

摘要： According to one embodiment, an optical disc device includes a light source portion which applies laser light to an optical disc, a drive portion which supplies a drive current to the light source portion so as to cause the light source portion to apply laser light of light pulses having relaxation oscillation, and a controller which controls the drive portion to supply a drive current so as to cause the light source portion to emit laser light of (n−1)×N (N is an integral number) light pulses having relaxation oscillation with respect to a mark with recording mark length nT (n: integral number, T: channel clock) to be recorded on the optical disc.

摘要翻译： 根据一个实施例，光盘装置包括向光盘施加激光的光源部分，向光源部分提供驱动电流以使光源部分施加光的激光的驱动部分 具有弛豫振荡的脉冲和控制驱动部分提供驱动电流以使光源部分发出具有弛豫振荡的（n-1）×N（N为整数）光脉冲的激光的控制器， 相对于要记录在光盘上的具有记录标记长度nT（n：整数，T：通道时钟）的标记。

公开(公告)号：US20090109808A1

公开(公告)日：2009-04-30

申请号：US12208658

申请日：2008-09-11

申请人： Nobuaki Kaji ,  Kazuo Watabe ,  Takashi Usui ,  Keiichiro Yasu ,  Chosaku Noda ,  Kazuto Kuroda ,  Masahiro Saito

发明人： Nobuaki Kaji ,  Kazuo Watabe ,  Takashi Usui ,  Keiichiro Yasu ,  Chosaku Noda ,  Kazuto Kuroda ,  Masahiro Saito

IPC分类号： G11B7/00

CPC分类号： G11B7/126 ,  H01S5/0428

摘要： According to one embodiment, a laser drive circuit which supplies a drive current to a laser element which outputs light at a predetermined wavelength, and a laser control circuit which supplies a predetermined timing pulse for generation of relaxation oscillation in a laser drive current supplied to the laser drive circuit, the laser control circuit supplying a laser drive current higher than a threshold value which is supplied from the laser drive circuit to the laser element to enable laser light to be output from the laser element, the laser control circuit setting the laser drive current to a level lower than the threshold value on the basis of the timing pulse.

摘要翻译： 根据一个实施例，提供驱动电流到激光元件的激光驱动电路，激光元件输出预定波长的光;以及激光控制电路，其提供预定的定时脉冲，以产生提供给 激光驱动电路，激光控制电路提供高于从激光驱动电路提供给激光元件的阈值的激光驱动电流，以使激光能够从激光元件输出，激光控制电路设置激光驱动 基于定时脉冲将电流电流降至低于阈值的电平。

公开(公告)号：US20080304401A1

公开(公告)日：2008-12-11

申请号：US11969732

申请日：2008-01-04

申请人： Hideo Ando ,  Hisashi Yamada ,  Seiji Morita ,  Koji Takazawa ,  Naomasa Nakamura ,  Kazuo Watabe ,  Nobuaki Kaji ,  Masahiko Mawatari ,  Nobuhisa Yoshida ,  Koichi Nagai

发明人： Hideo Ando ,  Hisashi Yamada ,  Seiji Morita ,  Koji Takazawa ,  Naomasa Nakamura ,  Kazuo Watabe ,  Nobuaki Kaji ,  Masahiko Mawatari ,  Nobuhisa Yoshida ,  Koichi Nagai

IPC分类号： G11B3/70

CPC分类号： G11B7/24079 ,  G11B7/00736 ,  G11B7/00745 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/00253 ,  G11B20/00449 ,  G11B20/00492 ,  G11B20/00869 ,  G11B2220/215 ,  G11B2220/2562

摘要： According to one embodiment, an optical information recording medium includes pre-grooves with an irregular shape and lands each of which is sandwiched between the pre-grooves adjacent to each other, where the pre-grooves and lands are defined on an interface between a recording layer and a light reflection layer in a recording film, where the recording film includes a light reflectivity that enables reproduction with light of 650±5 nm, the recording layer includes a recording sensitivity with respect to light by a wavelength shorter than 650±5 nm, and a recording mark can be formed on the pre-groove by using light with a wavelength shorter than 650±5 nm.

摘要翻译： 根据一个实施例，光学信息记录介质包括具有不规则形状的预凹槽，每个凹槽被夹在彼此相邻的预凹槽之间，其中预凹槽和凹槽被界定在记录 层和光反射层，其中记录膜包括能够以650±5nm的光再现的光反射率，记录层包括相对于光的记录灵敏度小于650±5nm的波长 并且可以通过使用波长短于650±5nm的光，在预制槽上形成记录标记。

公开(公告)号：US20070002704A1

公开(公告)日：2007-01-04

申请号：US11479738

申请日：2006-06-30

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

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

IPC分类号： G11B7/00

CPC分类号： G11B7/1381 ,  G11B7/0903 ,  G11B7/0906 ,  G11B7/1353 ,  G11B2007/0006

摘要： To improve the quality of a tracking error signal when reproducing information recorded in an optical disc having tracks with two or more different pitches, using a diffraction element which is given a diffraction pattern configured to provide diffracted rays on the light-receiving surface of a photodetector which receives a reflected laser beam reflected on the recording layer of an optical disc and outputs a corresponding signal, to use diffracted rays generated according to pitches of optical tracks of an optical disc having different track pitches by switching to a predetermined combination in each of a phase different detection method (DPD) and a push pull method (PP).

摘要翻译： 为了提高跟踪误差信号的质量，当再现记录在具有两个或多个不同间距的轨道的光盘中的信息时，使用衍射元件，该衍射元件被配置为在光电检测器的光接收表面上提供衍射光线 其接收在光盘的记录层上反射的反射激光束，并输出相应的信号，以使用通过切换到具有不同轨道间距的光盘的光轨的光轨的间距产生的衍射光线 相位不同检测方法（DPD）和推拉法（PP）。

公开(公告)号：US20090196142A1

公开(公告)日：2009-08-06

申请号：US12362395

申请日：2009-01-29

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

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

IPC分类号： G11B7/00

CPC分类号： G11B7/0062 ,  G11B7/126 ,  G11B7/259 ,  G11B2007/24306 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316

摘要： 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

摘要翻译： 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

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

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

IPC分类号： G11B7/00

CPC分类号： G11B7/00456 ,  G11B7/1267

摘要： 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.

摘要翻译： 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：US20080205216A1

公开(公告)日：2008-08-28

申请号：US12039723

申请日：2008-02-28

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

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

IPC分类号： G11B7/0037

CPC分类号： G11B7/00736 ,  G11B7/0045 ,  G11B7/00456 ,  G11B7/005 ,  G11B7/0062 ,  G11B7/1267

摘要： 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.

摘要翻译： 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：US07688874B2

公开(公告)日：2010-03-30

申请号：US11964329

申请日：2007-12-26

申请人： Nobuaki Kaji ,  Kazuo Watabe

发明人： Nobuaki Kaji ,  Kazuo Watabe

IPC分类号： H01S3/00

CPC分类号： G11B7/126 ,  H01S5/06835

摘要： 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.

摘要翻译： 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：US20090196148A1

公开(公告)日：2009-08-06

申请号：US12362322

申请日：2009-01-29

申请人： Keiichiro YUSU ,  Masahiro SAITO ,  Kazuto KURODA ,  Takashi USUI ,  Kazuo WATABE ,  Chosaku NODA ,  Nobuaki KAJI ,  Masaaki MATSUMARU ,  Ryosuke YAMAMOTO

发明人： Keiichiro YUSU ,  Masahiro SAITO ,  Kazuto KURODA ,  Takashi USUI ,  Kazuo WATABE ,  Chosaku NODA ,  Nobuaki KAJI ,  Masaaki MATSUMARU ,  Ryosuke YAMAMOTO

IPC分类号： G11B7/135

CPC分类号： G11B7/261

摘要： According to one embodiment, the invention provides a master recording apparatus and method which can form a pit having a symmetrical pit shape with excellent reproducibility. An embodiment of the invention is a master recording apparatus where a resist film on a master for an optical disk is irradiated with irradiation light from a semiconductor laser to record information on the resist film, where the resist film is formed as an inorganic resist film, and means for outputting the irradiation light from the semiconductor laser as a short pulse laser with a pulse width between 200 ps and 1 ns is provided.

摘要翻译： 根据一个实施例，本发明提供一种主记录装置和方法，该主记录装置和方法可以形成具有良好重复性的对称凹坑形状的凹坑。 本发明的一个实施例是一种主记录装置，其中用于光盘的主机上的抗蚀剂膜用来自半导体激光器的照射光照射以将抗蚀剂膜上的信息记录在抗蚀剂膜上，其中形成抗蚀剂膜作为无机抗蚀剂膜， 并且提供用于输出来自半导体激光器的照射光作为脉冲宽度在200ps和1ns之间的短脉冲激光器的装置。