公开(公告)号：US07623433B2

公开(公告)日：2009-11-24

申请号：US10818120

申请日：2004-04-05

申请人： Shuichi Ohkubo

发明人： Shuichi Ohkubo

IPC分类号： G11B7/20

CPC分类号： G11B7/00718 ,  G11B7/24038 ,  G11B7/24079

摘要： An optical recording medium comprises a transparent lower disk and an upper disk secured together by a transparent intermediate member. On one side of the lower disk, groove tracks of width WG0 and land tracks of width WL0 are formed. All tracks of the lower disk are coated with a recording film on which a laser beam is incident from below and a reflecting film on the recording film for partially reflecting the laser beam. The upper disk is formed with land tracks of width WL1 and groove tracks of width WG1 for receiving light through the corresponding groove and land tracks of the lower disk. All tracks of the upper disk are also coated with laminated recording and reflecting films. The ratio WG1/WL1 of the upper disk is greater than unity and is equal to or greater than the ratio WG0/WL0 of the lower disk so that the carrier-to-noise ratios of the two disks are substantially equal to each other.

摘要翻译： 光记录介质包括透明下盘和通过透明中间构件固定在一起的上盘。 在下盘的一侧，形成宽度为WG0的槽轨道和宽度WL0的槽脊轨道。 下盘的所有轨道涂覆有从其下面入射激光束的记录膜和用于部分反射激光束的记录膜上的反射膜。 上部盘形成宽度为WL1的槽脊轨道和宽度为WG1的槽轨道，用于通过下盘的相应凹槽和槽脊轨道接收光。 上盘的所有轨道也涂有层压记录和反射膜。 上盘的比率WG1 / WL1大于1，并且等于或大于下盘的比率WG0 / WL0，使得两个盘的载噪比基本上彼此相等。

公开(公告)号：US07498069B2

公开(公告)日：2009-03-03

申请号：US11180699

申请日：2005-07-14

申请人： Shuichi Ohkubo

发明人： Shuichi Ohkubo

IPC分类号： B32B3/02

CPC分类号： G11B7/243 ,  G11B7/00454 ,  G11B7/0062 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10T428/21

摘要： An optical recording medium has a substrate, and a recording film whose status is changed by irradiating with a laser beam. The recording film includes (αTe)xβTe3 as a major component (x is a positive real number). The α is selected from the group consisting of Ge1-aSna and Ge1-aPba (a is a real number not less than 0 and not more than 1). The β is selected from the group consisting of Sb2-yIny, Sb2-y-zInyBiz and Bi2-yIny (y and z are real numbers more than 0 and less than 2; y+z is more than 0 and less than 2).

摘要翻译： 光记录介质具有基板和通过用激光束照射来改变状态的记录膜。 记录膜包括（αTe）xβTe3作为主要成分（x为正实数）。 α选自Ge1-aSna和Ge1-aPba（a为不小于0且不超过1的实数）。 β选自Sb2-yIny，Sb2-y-zInyBiz和Bi2-yIny（y和z是大于0且小于2的实数; y + z大于0且小于2）。

公开(公告)号：US07457218B2

公开(公告)日：2008-11-25

申请号：US10997897

申请日：2004-11-29

申请人： Masatsugu Ogawa ,  Shuichi Ohkubo

发明人： Masatsugu Ogawa ,  Shuichi Ohkubo

IPC分类号： G11B7/00

CPC分类号： G11B7/0956 ,  G11B7/005 ,  G11B20/10009

摘要： In a method of obtaining a reproduction signal with good quality from a data recording medium, two actual signals are generated as first and second signals I1 and I2 from detection signals obtained from the data recording medium. A coefficient k which has linear correlation with a tilt is calculated based on the first and second signals I1 and I2. A reproduction signal in which influence of the tilt is eliminated, is reproduced by using the coefficient k and the first and second signals I1 and I2.

摘要翻译： 在从数据记录介质获得质量良好的再现信号的方法中，从获得的检测信号中产生两个实际信号作为第一和第二信号I 1和I 2 2 从数据记录介质。 基于第一和第二信号I 1和I 2 2计算与倾斜线性相关的系数k。 通过使用系数k和第一和第二信号I 1和I 2 2再现消除了倾斜影响的再现信号。

公开(公告)号：US20070104921A1

公开(公告)日：2007-05-10

申请号：US11593565

申请日：2006-11-07

申请人： Shuichi Ohkubo

发明人： Shuichi Ohkubo

IPC分类号： B32B3/02

CPC分类号： G11B7/2578 ,  G11B7/259 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/25715 ,  Y10T428/21

摘要： A phase change optical disk includes interface films sandwiching therebetween a recording film, wherein the interface films are configured by dielectric films including a mixture of Al oxide, T oxide and Ta oxide. The interface films improve the crystallization speed of the recording film without lowering the crystallizing temperature of the recording film.

摘要翻译： 相变光盘包括夹在其间的记录膜的界面膜，其中界面膜由包括Al氧化物，氧化钛和氧化钽的混合物的电介质膜构成。 界面膜改善了记录膜的结晶速度，而不降低记录膜的结晶温度。

公开(公告)号：US20070104920A1

公开(公告)日：2007-05-10

申请号：US11590793

申请日：2006-11-01

申请人： Shuichi Ohkubo ,  Eiji Kariyada

发明人： Shuichi Ohkubo ,  Eiji Kariyada

IPC分类号： B32B3/02

CPC分类号： G11B7/2578 ,  G11B7/259 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25715 ,  G11B2007/25716 ,  Y10T428/21

摘要： A phase change optical disk includes a first dielectric film, a recording film, a second dielectric film and a reflecting film which are consecutively formed on a substrate. The second dielectric film includes therein a zinc sulfide at a rate of 10 to 40 mol % and a tantalum oxide at a rate of 20 to 50 mol %, for preventing sulfuration of Ag in the reflecting film.

摘要翻译： 相变光盘包括在基板上连续形成的第一电介质膜，记录膜，第二电介质膜和反射膜。 第二电介质膜中含有10〜40摩尔％的硫化锌和20〜50摩尔％的氧化钽，以防止反应膜中的Ag的硫化。

公开(公告)号：US20070087155A1

公开(公告)日：2007-04-19

申请号：US11549348

申请日：2006-10-13

申请人： Eiji Kariyada ,  Shuichi Ohkubo

发明人： Eiji Kariyada ,  Shuichi Ohkubo

IPC分类号： B32B3/02

CPC分类号： G11B7/24038 ,  G11B7/252 ,  G11B7/259 ,  G11B2007/2571 ,  G11B2007/25713

摘要： An optical disc includes a first information layer and a second information layer, with an optical separation layer between them. The first information layer, provided near the side of the laser beam incident surface, includes at least a first dielectric layer, a recording layer, a second dielectric layer, a metallic translucent layer and a transmittance adjustment layer, laminated in this order. The first dielectric layer includes sulfide, but the second dielectric layer does not include sulfide. The refractive index of the second dielectric layer is same as or larger than that of the first dielectric layer.

摘要翻译： 光盘包括第一信息层和第二信息层，在它们之间具有光学分离层。 设置在激光束入射表面附近的第一信息层至少包括第一电介质层，记录层，第二电介质层，金属半透明层和透射率调整层。 第一电介质层包括硫化物，但第二电介质层不包括硫化物。 第二电介质层的折射率与第一电介质层的折射率相同或者更大。

公开(公告)号：US20050147021A1

公开(公告)日：2005-07-07

申请号：US10510460

申请日：2003-04-08

申请人： Shuichi Ohkubo

发明人： Shuichi Ohkubo

IPC分类号： G11B7/007 ,  G11B7/24079 ,  G11B7/24

CPC分类号： G11B7/24079 ,  G11B7/00718

摘要： A recording layer (2) and a light-transmitting layer (3) are provided on a substrate (1) having a guide groove for tracking a light beam projected in a spot for information recording/reproduction. The spot light beam is projected onto the recording layer (2) through the light-transmitting layer (3) so as to record information in a first portion (G′) of the recording layer corresponding to the inside (G) of the guide groove and a second portion (L′) of the recording layer corresponding to a flat portion (L) between adjacent guide grooves. The depth d of the first portion (G′) with respect to the second portion (L′) on the light-transmitting layer side of the recording layer (2) satisfies the relation λ/5.8 nf≦d≦λ/5 nf where λ is the wavelength of the light and nf is the index of refraction of the light-transmitting layer (3) to the wavelength λ. The reflectance of the recording layer (2) after the recording is larger than that before the recording.

摘要翻译： 记录层（2）和透光层（3）设置在具有用于跟踪投影在用于信息记录/再现的点中的光束的引导槽的基板（1）上。 点光束通过透光层（3）投影到记录层（2）上，以便将记录信息记录在与引导槽（G）对应的记录层的内部（G）的第一部分（G'）中 和与相邻引导槽之间的平坦部分（L）对应的记录层的第二部分（L'）。 第一部分（G'）相对于记录层（2）的透光层侧上的第二部分（L'）的深度d满足关系λ/ 5.8nf <= d <=λ/ 5 nf其中λ是光的波长，nf是透光层（3）对波长λ的折射率。 记录后的记录层（2）的反射率大于记录前的反射率。

公开(公告)号：US20050117504A1

公开(公告)日：2005-06-02

申请号：US10997897

申请日：2004-11-29

申请人： Masatsugu Ogawa ,  Shuichi Ohkubo

发明人： Masatsugu Ogawa ,  Shuichi Ohkubo

IPC分类号： G11B7/00 ,  G11B7/005 ,  G11B7/095 ,  G11B20/10

CPC分类号： G11B7/0956 ,  G11B7/005 ,  G11B20/10009

摘要： In a method of obtaining a reproduction signal with good quality from a data recording medium, two actual signals are generated as first and second signals I1 and I2 from detection signals obtained from the data recording medium. A coefficient k which has linear correlation with a tilt is calculated based on the first and second signals I1 and I2. A reproduction signal in which influence of the tilt is eliminated, is reproduced by using the coefficient k and the first and second signals I1 and I2.

摘要翻译： 在从数据记录介质获得质量良好的再现信号的方法中，从获得的检测信号中产生两个实际信号作为第一和第二信号I 1和I 2 2 从数据记录介质。 基于第一和第二信号I 1和I 2 2计算与倾斜线性相关的系数k。 通过使用系数k和第一和第二信号I 1和I 2 2再现消除了倾斜影响的再现信号。

公开(公告)号：US5862122A

公开(公告)日：1999-01-19

申请号：US956781

申请日：1997-10-23

申请人： Mitsuya Okada ,  Shuichi Ohkubo

发明人： Mitsuya Okada ,  Shuichi Ohkubo

IPC分类号： B41M5/26 ,  G11B7/0055 ,  G11B7/007 ,  G11B7/24 ,  G11B7/243 ,  G11B7/254

CPC分类号： G11B7/243 ,  G11B7/00557 ,  G11B7/00718 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2585

摘要： The optical phase difference between reflected laser light from the crystalline and the amorphous part of a phase change recording layer is established as 180 degrees .+-.5 degrees. The ratio between the light absorption factor when the phase change recording film is in the crystalline condition to that when it is in the amorphous condition is set to within the range 0.9 to 1.1. With the wavelength of the laser light used as .lambda., the optical depth of a guide groove formed on the substrate is set to within the range .lambda./9 to .lambda./6. With the wavelength of the laser light used in the range 635 nm to 650 nm, the depth of the guide groove is in the range 40 to 70 nm. In an optical disk such as this, when seen from reflected light, the groove region of a groove during playback and land region of the groove during playback are optically equivalent. For this reason, it is substantially the same as the case in which the optical phase difference between the reflected laser light from the crystalline part of the recording film and the reflected laser light from the amorphous part of the recording film is zero, this making it possible to achieve consistency in the signal levels between land playback and groove playback. As a result, it is possible to perform double track density recording and mark edge recording.

摘要翻译： 来自晶体的反射激光与相变记录层的非晶部分之间的光学相位差建立为180度+/- 5度。 当相变记录膜处于结晶状态时的光吸收系数与处于非晶态的光吸收系数之间的比率设定在0.9〜1.1的范围内。 在激光的波长为λ的情况下，将形成在基板上的引导槽的光学深度设定在λ/ 9〜λ/ 6的范围内。 使用在635nm至650nm范围内的激光的波长，导向槽的深度在40至70nm的范围内。 在这样的光盘中，当从反射光中观察时，回放期间的槽的槽区域和回放期间的槽的槽脊区域在光学上相当。 因此，与记录膜的结晶部分的反射激光和记录膜的非晶部分的反射激光之间的光学相位差为零的情况基本相同，这使得 可以实现陆地播放和凹槽播放之间信号水平的一致性。 结果，可以进行双轨密度记录和标记边缘记录。

公开(公告)号：US09164030B2

公开(公告)日：2015-10-20

申请号：US13431543

申请日：2012-03-27

申请人： Naoki Oda ,  Shuichi Ohkubo ,  Takayuki Sudo

发明人： Naoki Oda ,  Shuichi Ohkubo ,  Takayuki Sudo

IPC分类号： H04N9/47 ,  H04N7/18 ,  G01N21/3581 ,  G03B15/05 ,  G03B42/00

CPC分类号： G01N21/3581 ,  G03B15/05 ,  G03B42/00 ,  G03B2215/05

摘要： The present invention is applied for an image capturing device having a light source and a camera that captures an image of a measurement subject placed in an optical path that lies between said camera itself and said light source. The image capturing device according to the present invention includes a control unit that subtracts a plurality of frame images captured by said camera during an OFF period of said light source from a plurality of frame images captured by said camera during an ON period of said light source, the number of frame images captured by said camera during the OFF period being the same as that number of frame images obtained by said camera during the ON period and integrates the differences between their images.

摘要翻译： 本发明应用于具有光源和照相机的图像捕获装置，其捕获位于所述照相机本身和所述光源之间的光路中的测量对象的图像。 根据本发明的图像捕获装置包括：控制单元，在所述光源的导通期间，从所述相机拍摄的多个帧图像中减去在所述光源的OFF周期期间由所述相机拍摄的多个帧图像; 在OFF期间由所述摄像机拍摄的帧图像的数量与在ON周期期间由所述照相机获得的帧数相同，并且对它们的图像之间的差异进行积分。