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    • 1. 发明授权
    • Photo diode ic
    • 光电二极管ic
    • US08159908B2
    • 2012-04-17
    • US10565195
    • 2003-10-17
    • Soo-han ParkJong-uk Kim
    • Soo-han ParkJong-uk Kim
    • G11B7/095
    • G11B7/131G11B7/0903G11B7/0906G11B7/0909G11B7/0943G11B7/123G11B7/1275G11B2007/0006
    • A photodetector detecting reflected light components from an optical medium, the photodetector including a first detector divided into eight sections detecting the reflected light components and converting the light components into electrical signals, a first calculating portion calculating a first tracking error signal from the electrical signals by a differential push-pull method, a second calculating portion calculating a first focusing error signal by an astigmatism method and calculating a second tracking error signal by a differential phase detection method from the electrical signals converted by the first detector; a second detector divided into four sections detecting the reflected light components reflected by the optical recording medium to convert the light components into electrical signals; and a third calculating portion calculating a second focusing error signal by the astigmatism method and calculating a third tracking error signal by the differential phase detection method from the electrical signals converted by the second detector.
    • 一种检测来自光学介质的反射光分量的光检测器,该光检测器包括:第一检测器,被分为检测反射光分量的八个部分,并将光分量转换为电信号;第一计算部分,根据电信号计算第一跟踪误差信号, 差分推挽方法,第二计算部分,通过像散方法计算第一聚焦误差信号,并通过差分相位检测方法从由第一检测器转换的电信号计算第二跟踪误差信号; 第二检测器,被分为检测由光记录介质反射的反射光分量的四个部分,以将光分量转换成电信号; 以及第三计算部分,通过像散法计算第二聚焦误差信号,并通过差分相位检测方法从由第二检测器转换的电信号计算第三跟踪误差信号。
    • 3. 发明授权
    • X-ray system for dental diagnosis and oral cancer therapy based on nano-material and method thereof
    • 基于纳米材料的牙科诊断和口腔癌治疗的X射线系统及其方法
    • US07771117B2
    • 2010-08-10
    • US12181791
    • 2008-07-29
    • Jong Uk KimHae Young Choi
    • Jong Uk KimHae Young Choi
    • H05G1/02H01J35/00
    • H01J35/065A61B6/14A61B6/145A61N5/1014H01J1/3048H01J35/32
    • A medical X-ray tube system for dental diagnosis and oral cancer therapy based on nano-material is disclosed. The medical X-ray tube system may include a body and an X-ray emission module emitting X-rays using a cathode having a chipped nano-structured material. The X-ray emission module may be separable from the body. The medical X-ray tube system may be formed as a pen that can be inserted in the oral cavity for displaying an accurate image of an inner location of the oral cavity needing a diagnosis. For treatment of oral cancer requiring an appropriate amount of radiation therapy, brachytherapy may be conducted without concern of exposure of normal tissues to radiation because radiation can be directly irradiated to a diseased part. The X-ray emission module may use a chipped nano-structured material, for example, a carbon nanotube.
    • 公开了一种用于牙科诊断和基于纳米材料的口腔癌治疗的医用X射线管系统。 医疗X射线管系统可以包括使用具有切片纳米结构材料的阴极发射X射线的体和X射线发射模块。 X射线发射模块可以与身体分离。 医疗X射线管系统可以形成为可以插入口腔中的笔,以显示需要诊断的口腔的内部位置的精确图像。 为了治疗需要适当量的放射治疗的口腔癌,可以进行近距离放射治疗,而不用担心正常组织暴露于辐射,因为辐射可以直接照射到患病部位。 X射线发射模块可以使用切片纳米结构材料,例如碳纳米管。
    • 4. 发明申请
    • X-Ray System for Dental Diagnosis and Oral Cancer Therapy Based on Nano-Material and Method Thereof
    • 基于纳米材料及其方法的牙科诊断和口腔癌治疗X射线系统
    • US20090310742A1
    • 2009-12-17
    • US12181791
    • 2008-07-29
    • Jong Uk KimHae Young Choi
    • Jong Uk KimHae Young Choi
    • A61B6/14H01J35/00H01J35/20
    • H01J35/065A61B6/14A61B6/145A61N5/1014H01J1/3048H01J35/32
    • The present invention relates to applying an existing carbon nanotube X-ray tube for a dental X-ray imaging system that can replace a carbon nanotube electron emission source installed in a cathode portion. An X-ray tube system formed in a pen according to the present invention can be inserted in the oral cavity due to its thin thickness, thereby displaying an accurate image of an inner location of the oral cavity needing a diagnosis. For therapy of oral cancer requiring an appropriate amount of radiation therapy, since radiation can be directly irradiated to a diseased part, brachytherapy is enabled without concern of exposure dose of normal tissues. Therefore, when the system is commercialized, a great amount of distribution effect may be expected. The X-ray tube system that can be used for medical services such as a dental service includes an X-ray emission module emitting X-rays using a chipped nano-structured material, for example, carbon nanotube. The X-ray emission module is separable from a body in order to replace a cathode portion that is included in the X-ray emission module and is based on the nano-structured material.
    • 本发明涉及应用现有的用于牙科X射线成像系统的碳纳米管X射线管,其可以替代安装在阴极部分中的碳纳米管电子发射源。 根据本发明的用笔形成的X射线管系统由于其厚度薄而能够插入口腔,从而显示需要诊断的口腔内部位置的精确图像。 对于需要适量辐射治疗的口腔癌的治疗,由于辐射可以直接照射到患病部位,所以可以进行近距离放射治疗而不考虑正常组织的暴露剂量。 因此,当系统商业化时,可以预期大量的分配效应。 可用于医疗服务如牙科服务的X射线管系统包括使用切片纳米结构材料(例如碳纳米管)发射X射线的X射线发射模块。 为了更换X射线发射模块中包含的阴极部分并且基于纳米结构材料,X射线发射模块可与主体分离。
    • 8. 发明授权
    • Method for generating dynamic group key
    • 生成动态组密钥的方法
    • US08553887B2
    • 2013-10-08
    • US12609968
    • 2009-10-30
    • Man Pyo HongJong Uk KimSuk In Kang
    • Man Pyo HongJong Uk KimSuk In Kang
    • H04L9/08H04K1/00H04L9/00H04L9/28H04L9/32G06F15/16G06F17/30G06F11/30
    • H04L9/0833H04L9/0841H04L9/16
    • A method of generating a dynamic group key of a group formed of a plurality of nodes, the method including: unicasting a public key that is based on respective secret keys of each of a plurality of general nodes excluding a master node, which is one of the plurality of nodes, wherein the unicasting is performed by the general nodes; broadcasting to the group an encryption value obtained by exponentially-calculating a secret key of the master node to the plurality of public keys, wherein the broadcasting is performed by the master node upon receiving the plurality of public keys; and obtaining a group key by using an inverse power-calculation of the respective secret keys of each of the general nodes based on the encryption value, wherein the obtaining is performed by the general nodes.
    • 一种生成由多个节点组成的组的动态组密钥的方法,所述方法包括:基于除主节点之外的多个通用节点中的每一个的相应密钥单播,所述主密钥是主节点之一 所述多个节点,其中所述单播由所述一般节点执行; 向所述组广播通过对所述多个公钥进行指数式计算所述主节点的秘密密钥而获得的加密值,其中,所述主节点在接收到所述多个公钥时执行所述广播; 以及通过使用基于所述加密值的每个所述一般节点的各个密钥的逆功率计算来获得组密钥,其中所述获取由所述通用节点执行。
    • 9. 发明授权
    • Optical module and optical pickup including the same
    • 光学模块和光学拾取器包括它
    • US07426172B2
    • 2008-09-16
    • US10834998
    • 2004-04-30
    • Bong-gi KimSoo-han ParkHyo-chan LeeJong-uk Kim
    • Bong-gi KimSoo-han ParkHyo-chan LeeJong-uk Kim
    • G11B7/135G11B7/09
    • G11B7/1353G11B7/0909G11B7/123G11B7/1263G11B7/127G11B7/131G11B7/1356G11B7/1359G11B7/1398G11B2007/0006
    • An optical pickup includes an optical module that detects an information signal and/or an error signal by radiating light to a recording medium and receives light reflected by the recording medium. The optical module includes a light source; an optical path changer that changes a path of light emitted from the light source; a main photodetector that receives light that is reflected off a recording medium back to the optical module to detect an information signal and/or an error signal; and a hologram element that generates an astigmatism of the light incident onto the optical module. Since most optical elements of the optical pickup except an objective lens are packaged in the optical module, the entire structure of the optical pickup can be simplified and the number of bonding points for fixing the optical elements of the optical pickup on a base can be reduced.
    • 光学拾取器包括光学模块,其通过向记录介质照射光并接收由记录介质反射的光来检测信息信号和/或误差信号。 光学模块包括光源; 光路改变器,其改变从光源发射的光的路径; 主光电检测器,其将从记录介质反射的光返回到光模块以检测信息信号和/或误差信号; 以及产生入射到光学模块上的光的散光的全息元件。 由于除了物镜之外的光学拾取器的大多数光学元件被封装在光学模块中,所以可以简化光学拾取器的整体结构,并且可以减少用于将光学拾取器的光学元件固定在基座上的接合点的数量 。