公开(公告)号：US5982513A

公开(公告)日：1999-11-09

申请号：US20469

申请日：1998-02-09

申请人： Gan Zhou ,  Demetri Psaltis ,  Fai Mok ,  Allen Pu

发明人： Gan Zhou ,  Demetri Psaltis ,  Fai Mok ,  Allen Pu

IPC分类号： G03H1/26

CPC分类号： G03H1/26

摘要： A method and a system to re-align onto a detector array a holographic image of a Fourier region hologram stored in a medium, with the medium spinning around a first axis, and the hologram being generated by a reference beam and a signal beam. In generating the hologram, the reference beam is incident on the medium with respect to a second axis at a second-axis-incident angle, and a third axis at a third-axis-incident angle, such that the holographic image of the hologram when reproduced by the reference beam is aligned onto the detector array. Also, the three axes are substantially orthogonal to each other. As the medium spins, the medium's orientation can change through tilting with respect to the second and the third axes so that the holographic image when reproduced by the reference beam is not aligned onto the detector array. In one embodiment, the holographic image is re-aligned onto the detector array by tilting the reference beam such that when re-aligned, the incident angle of the reference beam on the medium with respect to the second axis is intentionally tilted to be different from the second-axis-incident angle, and with respect to the third axis to be different from the third-axis-incident angle.

摘要翻译： 一种方法和系统，用于将介质围绕第一轴旋转，并且由参考光束和信号光束产生的全息图将存储在介质中的傅立叶区域全息图的全息图像重新对准到检测器阵列。 在产生全息图时，参考光束以第二轴入射角相对于第二轴入射在介质上，第三轴以第三轴入射角入射，使得全息图的全息图当 由参考光束再现被对准到检测器阵列上。 此外，三个轴线基本上彼此正交。 当介质旋转时，介质的取向可以通过相对于第二和第三轴的倾斜而改变，使得当被参考光束再现时的全息图像未对准检测器阵列。 在一个实施例中，通过倾斜参考光束将全息图像重新对准到检测器阵列上，使得当重新对准时，介质上参考光束相对于第二轴的入射角有意地倾斜以与 第二轴入射角，并且相对于第三轴相对于第三轴入射角不同。

公开(公告)号：US6055174A

公开(公告)日：2000-04-25

申请号：US327146

申请日：1999-06-07

申请人： Gan Zhou ,  Xin An ,  Fai Ho Mok ,  Demetri Psaltis

发明人： Gan Zhou ,  Xin An ,  Fai Ho Mok ,  Demetri Psaltis

IPC分类号： G11B7/0065 ,  G11B7/125 ,  G11C13/04 ,  G11C11/46

CPC分类号： G11B7/127 ,  G11C13/042 ,  G11B7/0065

摘要： A method and a compact apparatus to read shift-multiplexed holograms on a storage medium without the need for any lenses, and without the need for moving the storage medium. The shift-multiplexed holograms have centers at different locations. The apparatus can generate an array of diverging spherical waves of reference beams, each for illuminating one of the holograms. Each hologram is read as an image on a detector array by illuminating that hologram with a corresponding diverging spherical wave of reference beam. Different holograms can be read by illuminating the medium with a different diverging spherical reference beam. The diverging beams can be from an array of sources, or can be from switching one source.

摘要翻译： 一种在存储介质上读取移位复用全息图而不需要任何透镜并且不需要移动存储介质的方法和紧凑的设备。 移位复用全息图在不同位置具有中心。 该装置可以产生参考光束的发散球面波阵列，每个用于照射全息图之一。 通过用相应的参考光束发散的球面波照射全息图，将每个全息图作为图像读取在检测器阵列上。 可以通过用不同的发散球形参考光束照射介质来读取不同的全息图。 发散光束可以来自一组源，或者可以来自一个源的切换。

公开(公告)号：US06222755B1

公开(公告)日：2001-04-24

申请号：US09520399

申请日：2000-03-08

申请人： Gan Zhou ,  Xin An ,  Fai Ho Mok ,  Demetri Psaltis

发明人： Gan Zhou ,  Xin An ,  Fai Ho Mok ,  Demetri Psaltis

IPC分类号： G11C1304

CPC分类号： G11B7/127 ,  G11B7/0065 ,  G11C13/042

摘要： A method and a compact apparatus to read shift-multiplexed holograms on a storage medium without the need for any lenses, and without the need for moving the storage medium. The shift-multiplexed holograms have centers at different locations. The apparatus can generate an array of diverging spherical waves of reference beams, each for illuminating one of the holograms. Each hologram is read as an image on a detector array by illuminating that hologram with a corresponding diverging spherical wave of reference beam. Different holograms can be read by illuminating the medium with a different diverging spherical reference beam. The diverging beams can be from an array of sources, or can be from switching one source.

摘要翻译： 一种在存储介质上读取移位复用全息图而不需要任何透镜并且不需要移动存储介质的方法和紧凑的设备。 移位复用全息图在不同位置具有中心。 该装置可以产生参考光束的发散球面波阵列，每个用于照射全息图之一。 通过用相应的参考光束发散的球面波照射全息图，将每个全息图作为图像读取在检测器阵列上。 可以通过用不同的发散球形参考光束照射介质来读取不同的全息图。 发散光束可以来自一组源，或者可以来自一个源的切换。

公开(公告)号：US06898167B2

公开(公告)日：2005-05-24

申请号：US09924218

申请日：2001-08-07

申请人： Tsuen-Hsi Liu ,  Demetri Psaltis ,  Fai H. Mok ,  Gan Zhou

发明人： Tsuen-Hsi Liu ,  Demetri Psaltis ,  Fai H. Mok ,  Gan Zhou

IPC分类号： G11B7/0045 ,  G11B7/005 ,  G11B7/0065 ,  G11B7/007 ,  G11B7/12 ,  G11B7/135 ,  G11B7/00

CPC分类号： G11B7/1381 ,  G03H2001/0415 ,  G03H2001/0417 ,  G03H2001/266 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/0065 ,  G11B7/007 ,  G11B7/00772 ,  G11B7/12 ,  G11B7/28

摘要： An optical memory for storing and/or reading data on an optical disk. The optical disk incorporates a material in which holographic gratings can be created, and subsequently detected, at plural locations within the disk by an electro-optical head. Creation and detection of holographic gratings with variable diffraction efficiency is possible with the electro-optical head. Multiple holographic gratings can also be created at each one of the plural locations via a beam of light which has a different wavelength or point of focus. These data elements can be read by the electro-optical head using a beam of light sequentially varied in wavelength or point of focus to correspond to the multiple holographic gratings to be recorded.

摘要翻译： 一种用于在光盘上存储和/或读取数据的光学存储器。 光盘包括一种材料，其中可以通过电光头在光盘内的多个位置处产生全息光栅并随后检测全息光栅。 使用电光头可以创建和检测具有可变衍射效率的全息光栅。 也可以通过具有不同波长或焦点的光束在多个位置的每一个处产生多个全息光栅。 这些数据元素可以由电光头使用在波长或焦点上顺序变化的光束对应于待记录的多个全息光栅。

公开(公告)号：US06272095B1

公开(公告)日：2001-08-07

申请号：US08427721

申请日：1995-04-21

申请人： Tsuen-Hsi Liu ,  Demetri Psaltis ,  Fai H. Mok ,  Gan Zhou

发明人： Tsuen-Hsi Liu ,  Demetri Psaltis ,  Fai H. Mok ,  Gan Zhou

IPC分类号： G11B700

CPC分类号： G11B7/1381 ,  G03H2001/0415 ,  G03H2001/0417 ,  G03H2001/266 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/0065 ,  G11B7/007 ,  G11B7/00772 ,  G11B7/12 ,  G11B7/28

摘要： An optical memory for storing and/or reading data on an optical disk. The optical disk incorporates a material in which holographic gratings can be created at plural locations within the disk. An electro-optical head which is capable of creating these holographic gratings at any one of the plural locations is employed. The head is additionally capable of detecting the presence or absence of a holographic grating at any one of these plural locations. The presence of the holographic grating could indicate a first binary state and the absence of the holographic grating indicate a second state. Alternately, the electro-optical head could be used to vary the diffraction efficiency of the holographic gratings during their creation. In that case, the head would also be capable of detecting this variation in efficiency and produce a proportional detection signal. This signal would be used as an indicator of the value of the stored data element. The material of the optical disk is further capable of having multiple holographic gratings created at each one of the plural locations. These multiple holographic gratings are created via a beam of light from the electro-optical head which has a different wavelength or point of focus. In reading these holographic gratings, a beam of light generated by the electro-optical head is sequentially varied in wavelength or point of focus to correspond to the wavelength or point of focus and the sequence of wavelengths or points of focus employed to record each one of the data elements recorded.

摘要翻译： 一种用于在光盘上存储和/或读取数据的光学存储器。 光盘结合了一种材料，其中可以在盘内的多个位置处产生全息光栅。 采用能够在多个位置的任何一个处产生这些全息光栅的电光头。 头部还能够在这些多个位置中的任何一个处检测全息光栅的存在或不存在。 全息光栅的存在可以指示第一二进制状态，并且不存在全息光栅指示第二状态。 或者，电光头可以用于改变全息光栅在其创建期间的衍射效率。 在这种情况下，磁头还能够检测这种效率变化并产生比例检测信号。 该信号将用作存储的数据元素的值的指示符。 光盘的材料还能够具有在多个位置中的每一个处产生的多个全息光栅。 这些多个全息光栅通过具有不同波长或焦点的电光头的光束产生。 在读取这些全息光栅时，由光电头产生的光束在波长或焦点上依次变化，以对应于波长或聚焦点，并且波长或聚焦点用于记录每个 记录数据元素。

公开(公告)号：US6075895A

公开(公告)日：2000-06-13

申请号：US879854

申请日：1997-06-20

申请人： Yong Qiao ,  Fai Mok ,  Gan Zhou

发明人： Yong Qiao ,  Fai Mok ,  Gan Zhou

IPC分类号： A63F13/06 ,  G06F3/00 ,  G06F3/01 ,  G06F3/033 ,  G06F3/042 ,  G06K9/00 ,  G06K9/62

CPC分类号： G06F3/017 ,  A63F13/06 ,  A63F13/42 ,  G06K9/00335 ,  A63F13/213 ,  A63F2300/1012 ,  A63F2300/1093

摘要： An apparatus and a method for recognizing the gesture of the image of a player by identifying a gesture from a set of specific pre-defined gestures. In one embodiment, the method includes the steps of retrieving a background image that does not include the player's image, and a current image that includes the player's image and at least a portion of the background image. Then the method removes at least a portion of the background image from the current image to generate the player's image, which is mapped directly to a number of templates to generate a number of template outputs. Finally, the method analyzes the template outputs to identify the specific pre-defined gesture that corresponds to the gesture in the image.

摘要翻译： 一种用于通过从一组特定预定义手势中识别手势来识别玩家的图像的手势的装置和方法。 在一个实施例中，该方法包括检索不包括播放器图像的背景图像以及包括播放器图像和背景图像的至少一部分的当前图像的步骤。 然后，该方法从当前图像中去除背景图像的至少一部分，以产生播放器的图像，其直接映射到多个模板以生成多个模板输出。 最后，该方法分析模板输出以识别与图像中的手势相对应的特定预定义手势。

公开(公告)号：US5796858A

公开(公告)日：1998-08-18

申请号：US646531

申请日：1996-05-10

申请人： Gan Zhou ,  Yong Qiao ,  Fai Mok

发明人： Gan Zhou ,  Yong Qiao ,  Fai Mok

IPC分类号： A61B5/117 ,  G06K9/00 ,  G06T1/00 ,  G06K9/74

CPC分类号： G06K9/00046

摘要： In one embodiment, a fingerprint sensing system includes a sheet prism having a sensing surface and a number of prismlets positioned opposite to the sensing surface. Each prismlet has an entrance surface and an exit surface, and is adjacent to another prismlet. The width of the sheet is more than ten times the maximum thickness of any one of the prismlets. When a finger is positioned on the sensing surface, a portion of the radiation entering a number of the entrance surfaces and incident at the sensing surface is reflected through total internal reflection. The reflected radiation emits from a number of the exit surfaces to create an image of the fingerprint. In another embodiment, the system further includes a second sheet prism stacked together with the previously described sheet prism. The second sheet prism has a flat surface and a number of prismlets positioned opposite to the flat surface, which faces the prismlets of the previously described sheet prism. The image formed with two sheet prisms can have lower distortion. In yet another embodiment, the fingerprint sensing system is incorporated into a flat-profile package using mirrors to fold radiation and to compress the height of the package.

摘要翻译： 在一个实施例中，指纹感测系统包括具有感测表面的片状棱镜和与感测表面相对定位的多个棱镜。 每个棱镜具有入射表面和出射表面，并且与另一棱镜相邻。 片材的宽度是任何一个棱镜的最大厚度的十倍以上。 当手指位于感测表面上时，进入多个入射表面并入射到感测表面的辐射的一部分通过全内反射被反射。 反射的辐射从多个出射表面发射以产生指纹的图像。 在另一个实施例中，系统还包括与先前描述的片状棱镜堆叠在一起的第二片状棱镜。 第二片棱镜具有与前述片状棱镜的棱镜相对的与平坦表面相对的平坦表面和多个棱镜。 用两片棱镜形成的图像可以具有较低的变形。 在另一个实施例中，指纹感测系统使用镜子结合到平坦轮廓包中以折叠辐射并压缩包装的高度。

公开(公告)号：US06810171B2

公开(公告)日：2004-10-26

申请号：US10739495

申请日：2003-12-18

申请人： Gan Zhou ,  Kuang-Yi Wu

发明人： Gan Zhou ,  Kuang-Yi Wu

IPC分类号： G02B626

CPC分类号： H04J14/0208 ,  G02B6/272 ,  G02B6/2746 ,  G02B6/29302 ,  G02B6/29349 ,  G02B6/29358 ,  G02B6/29386 ,  H04J14/02 ,  H04J14/0213 ,  H04J14/06

摘要： An optical wavelength router separates an input signal into two complementary output signals. A beamsplitter of the wavelength router separates the input signal into a first beam and a second beam. A first resonator reflects the first beam producing a group delay that is dependent on wavelength. Similarly, a second resonator reflects the second beam. The center wavelength of the second resonator is offset relative to that of the first resonator by one half of the free spectral range of the first resonator, so that the resonance frequencies of the second resonator are matched to the anti-resonance frequencies of the first resonator. The beams reflected by the resonators interfere within the beamsplitter to produce two output signals containing complementary subsets of the spectrum of the input signal (e.g., even optical channels are routed to a first output port and the odd optical channels are routed to a second output port).

摘要翻译： 光波长路由器将输入信号分为两个互补输出信号。 波长路由器的分束器将输入信号分离成第一波束和第二波束。 第一谐振器反射第一光束产生取决于波长的群延迟。 类似地，第二谐振器反射第二光束。 第二谐振器的中心波长相对于第一谐振器的中心波长偏移了第一谐振器的自由光谱范围的一半，使得第二谐振器的谐振频率与第一谐振器的反谐振频率相匹配 。 由谐振器反射的光束在分束器内干涉以产生包含输入信号的光谱的互补子集的两个输出信号（例如，甚至光信道被路由到第一输出端口，并且奇数光信道被路由到第二输出端口 ）。

公开(公告)号：US08166825B2

公开(公告)日：2012-05-01

申请号：US12761825

申请日：2010-04-16

申请人： Gan Zhou

发明人： Gan Zhou

IPC分类号： G01H9/00 ,  G01B9/02

CPC分类号： G01H9/004

摘要： Method and apparatus for noise reduction in ultrasound detection with the steps of: an optical interferometer having a reference arm and a signal arm that includes a polarization-maintaining probing fiber having a reflective coating at a distal end, a way to couple the probing fiber to ultrasound, a way to generate two output beams from the interferometer, a device to modulate the polarization state of the light in the probing fiber, and a detection mechanism responsive to the ultrasonic signals at the distal tip of the probing fiber.

摘要翻译： 用于超声波检测中降噪的方法和装置，其步骤为：具有参考臂和信号臂的光学干涉仪，其包括在远端具有反射涂层的偏振保持探测光纤，将探测光纤耦合到 超声波，从干涉仪产生两个输出光束的方法，用于调制探测光纤中的光的偏振状态的装置，以及响应于探测光纤远端的超声信号的检测机构。

公开(公告)号：US20090270850A1

公开(公告)日：2009-10-29

申请号：US12137664

申请日：2008-06-12

申请人： Gan Zhou ,  Jeffrey R. Gladden

发明人： Gan Zhou ,  Jeffrey R. Gladden

IPC分类号： A61B18/24 ,  A61B18/18 ,  A61B8/13 ,  A61M25/10

CPC分类号： A61B18/24 ,  A61B8/12 ,  A61B8/4488 ,  A61B2018/2272

摘要： Various devices for ablating tissue in a lateral direction and methods of operation thereof. One embodiment of such a device includes: (1) an elongated body configured to carry ablative energy from an ablative energy source associated with a proximal end to a distal end and (2) a distal tip located at the distal end, the distal tip configured to deliver the ablative energy in a direction substantially lateral to a longitudinal axis of the elongated body.

摘要翻译： 用于沿横向消除组织的各种装置及其操作方法。 这种装置的一个实施例包括：（1）细长主体，被配置为将消融能量从与近端相关联的消融能量源运送到远端，以及（2）位于远端的远侧末端， 以沿着细长主体的纵向轴线基本上横向的方向递送烧蚀能量。