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117 条记录 (耗时 0.046 秒)

    Method and system for identifying a person using their finger-joint print
    11.
    发明授权
    Method and system for identifying a person using their finger-joint print 有权
    用于识别使用他们的手指关节印刷的人的方法和系统

    公开(公告)号：US08208692B2

    公开(公告)日：2012-06-26

    申请号：US12354537

    申请日：2009-01-15

    申请人： Lei Zhang ,  Lin Zhang ,  Hailong Zhu ,  David Zhang ,  Nan Luo

    发明人： Lei Zhang ,  Lin Zhang ,  Hailong Zhu ,  David Zhang ,  Nan Luo

    IPC分类号： G06K9/00

    CPC分类号： G06K9/00006 ,  G06K9/3216 ,  G06K9/527

    摘要： A method for identifying a person using their finger-joint print including the outer skin around the proximal interphalangeal joint of a finger, the method comprising: capturing (10) an image of the finger-joint print of the person; extracting (12) a region of interest (ROI) based on a local convexity property of the finger-joint print; extracting (13) features representing the orientation of the lines in a finger-joint print image from the ROI using an extended Gabor phase coding scheme and the extracted features are represented in competitive code maps; wherein angular distance between the competitive code maps is compared (14) with a reference set in a database to identify the person.

    摘要翻译： 一种用于使用包括手指近端指间关节周围的外皮的他们的指关节印迹识别人的方法，所述方法包括：捕获（10）人的手指关节印刷的图像; 基于手指关节印刷的局部凸性，提取（12）感兴趣区域（ROI）; 使用扩展Gabor相位编码方案提取（13）表示来自ROI的手指关联打印图像中的线的方向的特征，并且所提取的特征在竞争性代码图中表示; 其中将竞争性代码映射之间的角距离与数据库中的参考集进行比较（14）以识别该人。

    Methods of fabricating a regenerated optical waveguide grating
    16.
    发明授权
    Methods of fabricating a regenerated optical waveguide grating 失效
    制造再生光波导光栅的方法

    公开(公告)号：US06907165B2

    公开(公告)日：2005-06-14

    申请号：US10215203

    申请日：2002-08-09

    申请人： Yu Liu ,  John A R Williams ,  Lin Zhang ,  Ian Bennion

    发明人： Yu Liu ,  John A R Williams ,  Lin Zhang ,  Ian Bennion

    IPC分类号： G02B6/12 ,  G02B6/34

    CPC分类号： G02B6/02133

    摘要： A regenerated optical waveguide is fabricated by hydrogenating an optical waveguide (12) and exposing a grating section (28) to a UV laser beam interference fringe pattern (14) to form a Type I grating. The grating section (28) is exposed for a second period to erase the Type I grating, and then a third period to cause a regenerated optical waveguide grating to form. The resonant wavelength increases during the third period from being substantially the same as the final wavelength of the Type I grating.

    摘要翻译： 通过氢化光波导（12）并将光栅部分（28）暴露于UV激光束干涉条纹图案（14）以形成I型光栅来制造再生光波导。 光栅部分（28）暴露第二周期以擦除I型光栅，然后第三周期以形成再生的光波导光栅。 在第三周期期间，谐振波长与I型光栅的最终波长基本相同。

    Strain sensing
    17.
    发明授权
    Strain sensing 失效
    应变传感

    公开(公告)号：US06816638B1

    公开(公告)日：2004-11-09

    申请号：US09936551

    申请日：2001-12-28

    申请人： Ian Bennion ,  John Williams ,  Christopher Groves-Kirkby ,  Lin Zhang

    发明人： Ian Bennion ,  John Williams ,  Christopher Groves-Kirkby ,  Lin Zhang

    IPC分类号： G02D5353

    CPC分类号： G01L1/242 ,  G01B11/18 ,  G01D5/35383

    摘要： A strain sensor comprises an optical waveguide having a plurality of reflecting structure (Bragg grating) along its length. Each structure reflects light at a different characteristic wavelength (&lgr;1 to &lgr;n+1) which changes in dependence on a change of physical length of at least part of the reflecting structure. The reflectivity of reflecting structures which reflect at characteristic wavelengths which are adjacent to each other (&lgr;1 and &lgr;2 or &lgr;n and &lgr;n+1) are configured to be different such that the intensity of light reflected from adjacent structures can be used to discriminate between them.

    摘要翻译： 应变传感器包括沿其长度具有多个反射结构（布拉格光栅）的光波导。 每个结构反射出根据反射结构的至少一部分的物理长度的变化而变化的不同特征波长（λ1至兰丹丹+1）的光。 反映在彼此相邻的特征波长（λ1和λ2或兰布丹和兰布丹+ 1）的反射结构的反射率被配置为不同，使得可以使用从相邻结构反射的光的强度来区分它们。

    Fibre optic grating sensor
    18.
    发明授权
    Fibre optic grating sensor 失效
    光纤光栅传感器

    公开(公告)号：US06768098B1

    公开(公告)日：2004-07-27

    申请号：US09926015

    申请日：2002-01-24

    申请人： Catherine A. Sugden ,  Karen E. Chisholm ,  Lin Zhang

    发明人： Catherine A. Sugden ,  Karen E. Chisholm ,  Lin Zhang

    IPC分类号： G01J508

    CPC分类号： G01D5/35383 ,  G01B11/18

    摘要： A fiber optic grating sensor (10) comprising an optical fiber (12) in which a grating portion (14) is provided, the refractive index (16) of the fiber (12) varying periodically along the grating portion (14). The periodic variation of the refractive index (16) has an amplitude envelope which includes, in this example, two regions (24) in which the amplitude of the envelope is substantially reduced, and in this example is substantially nulled. The null regions (24) give the grating portion a spectral profile (20) within which there are, in this example two pass bands (18).

    摘要翻译： 一种光纤光栅传感器（10），包括其中设置有光栅部分（14）的光纤（12），光纤（12）的折射率（16）沿光栅部分（14）周期性地变化。 折射率（16）的周期性变化具有幅度包络，在该示例中包括两个区域（24），其中包络线的幅度被显着减小，并且在该示例中基本为零。 零区域（24）为光栅部分提供光谱分布（20），其中在该示例中存在两个通带（18）。

    Bookcase showing shelf
    20.
    外观设计
    Bookcase showing shelf 有权

    公开(公告)号：USD1047538S1

    公开(公告)日：2024-10-22

    申请号：US29952444

    申请日：2024-07-16

    申请人： Lin Zhang

    设计人： Lin Zhang

    摘要： FIG. 1 is a perspective view of a bookcase showing shelf showing the claimed design;
    FIG. 2 is another perspective view thereof;
    FIG. 3 is a front elevational view thereof;
    FIG. 4 is a rear elevational view thereof;
    FIG. 5 is a left side view thereof;
    FIG. 6 is a right side view thereof;
    FIG. 7 is a top plan view thereof; and,
    FIG. 8 is a bottom plan view thereof.
    The broken lines depict portions of the bookcase showing shelf that form no part of the claimed design.