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    • 72. 发明授权
    • Image processing system, program, information storage medium, and image processing method
    • 图像处理系统,程序,信息存储介质和图像处理方法
    • US07295699B2
    • 2007-11-13
    • US10847447
    • 2004-05-18
    • Yasuo OhbaKentaro Yamaguchi
    • Yasuo OhbaKentaro Yamaguchi
    • G06K9/00G06K9/36
    • G01C11/06H04N13/122H04N13/334
    • An original image area IMR is divided into divided image areas DR1 to DR4, texture coordinates specified by division point coordinates are obtained, and images of the divided image areas DR1 to DR4 are mapped onto polygons PL1 to PL4, based on the obtained texture coordinates. The original image area IMR is divided in such a manner that division spacing in a direction DIR1 towards a vanishing point VP1 from the original image becomes narrower as the divided image areas are closer to the vanishing point VP1 and texture coordinates are obtained, to implement correction processing for removing perspective of the original image. Correction processing is performed to remove perspective of images at a base surface of images IL1 and IR1 for the left eye and the right eye, the images IL2 and IR2 for the left eye and the right eye are generated, and a stereoscopic image is generated by synthesizing (by anaglyph processing) IL2 and IR2.
    • 原始图像区域IMR被划分为分割图像区域DR 1至DR 4,获得由分割点坐标指定的纹理坐标,并且基于分割图像区域DR 1至DR 4的图像被映射到多边形PL 1至PL 4上 对获得的纹理坐标。 原始图像区域IMR以这样的方式被分割,使得从原始图像朝向消失点VP 1的方向DIR 1上的分割间隔随着分割图像区域更靠近消失点VP 1而变窄,并获得纹理坐标, 以实现用于去除原始图像的透视的校正处理。 执行校正处理以去除左眼和右眼的图像IL1和IR1的基面处的图像的透视图,生成用于左眼和右眼的图像IL 2和IR 2,以及立体视觉 通过合成(通过浮雕处理)IL 2和IR 2产生图像。
    • 74. 发明授权
    • Semiconductor laser and method for manufacturing the same
    • 半导体激光器及其制造方法
    • US5617438A
    • 1997-04-01
    • US567982
    • 1995-12-11
    • Ako HatanoYasuo Ohba
    • Ako HatanoYasuo Ohba
    • H01S5/323H01S5/327H01S3/19
    • H01S5/32341H01S5/327H01S2302/00
    • A semiconductor laser having an oscillation wavelength of not more than 450 nm comprises a substrate, a lower cladding layer containing a III-V Group compound semiconductor as a main component formed on the substrate, an active layer containing the III-V Group compound semiconductor as a main component formed on the lower cladding layer and an upper p-type cladding layer containing III-V Group compound semiconductor as a main component. Mg and Si are contained in the upper p-type cladding layer. A GaN series compound semiconductor is preferably used as the III-V Group compound semiconductor and the upper cladding layer contains preferably not less than 5.times.10.sup.18 /cm.sup.3 of Si.
    • 振荡波长在450nm以下的半导体激光器包括基板,在基板上形成有III-V族化合物半导体作为主要成分的下包层,含有III-V族化合物半导体的活性层为 形成在下包层上的主要成分和含有III-V族化合物半导体作为主要成分的上部p型包覆层。 Mg和Si包含在上p型包覆层中。 优选使用GaN系化合物半导体作为III-V族化合物半导体,上部包层优选含有5×10 18 / cm 3以上的Si。
    • 80. 发明授权
    • Impurity-doped semiconductor laser device for single wavelength
oscillation
    • 用于单波长振荡的杂质掺杂半导体激光器件
    • US4928285A
    • 1990-05-22
    • US314176
    • 1989-02-23
    • Mitsuhiro KushibeKazuhiro EguchiMasahisa FunamizuYasuo Ohba
    • Mitsuhiro KushibeKazuhiro EguchiMasahisa FunamizuYasuo Ohba
    • H01S5/16H01S5/227H01S5/30H01S5/323
    • H01S5/16H01S5/227H01S5/305H01S5/164H01S5/2275H01S5/3068H01S5/32391
    • An impurity-doped double-heterostructure semiconductor laser adapted for single-longitudinal-mode operation is disclosed which includes a semiconductive substrate and a mesa of double-heterostructure formed over the substrate. The mesa comprises an active layer serving as a light-emitting layer, a waveguiding layer adjacent to the active layer and clad layers interposing the active layer and the waveguiding layer therebetween. A high-resistively layer is formed to bury the lateral surfaces of the mesa. The active layer contains impurities of a rare earth element with a previously selected concentration. The limited concentration of impurities is high enough to confine only light components falling within a specific range of wavelength, of all the light components produced in the active layer when the laser device is operative, within the active layer so as to provide single wavelength laser oscillation and low enough to inhibit the initiation of spontaneous emission of the rare earth element within the active layer. For example, the concentration may be set to 1.times.10.sup.18 cm.sup.-3 or below.
    • 公开了一种适用于单纵模操作的杂质掺杂双异质结构半导体激光器,其包括半导体基片和形成在基片上的双异质结构的台面。 台面包括用作发光层的有源层,与有源层相邻的波导层和在其间插入有源层和波导层的包层。 形成高电阻层以埋设台面的侧表面。 活性层含有预先选定浓度的稀土元素的杂质。 有限的杂质浓度足够高,仅限于在有源层内仅在有源层内限制落在特定波长范围内的所有在活性层中产生的光分量的光成分,以提供单波长激光振荡 并且足够低以抑制活性层内稀土元素的自发发射。 例如,浓度可以设定为1×10 18 cm -3以下。