利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

18 条记录 (耗时 0.045 秒)

    Methods and apparatus for direct-global separation of light using angular filtering
    4.
    发明授权
    Methods and apparatus for direct-global separation of light using angular filtering 有权
    使用角度滤波直接全局分离光的方法和装置

    公开(公告)号：US08593643B2

    公开(公告)日：2013-11-26

    申请号：US12700654

    申请日：2010-02-04

    申请人： Jaewon Kim ,  Ramesh Raskar

    发明人： Jaewon Kim ,  Ramesh Raskar

    IPC分类号： G01B11/24 ,  G01N21/00 ,  G06K9/00

    CPC分类号： G01B11/26 ,  G01J3/50 ,  G06F17/10 ,  H04N7/18

    摘要： In an exemplary implementation of this invention, light from a scattering scene passes through a spatial light attenuation pattern and strikes a sensor plane of a camera. Based on said camera's measurements of the received light, a processing unit calculates angular samples of the received light. Light that strikes the sensor plane at certain angles comprises both scattered and directly transmitted components; whereas light that strikes at other angles comprises solely scattered light. A processing unit calculates a polynomial model for the intensity of scattered-only light that falls at the latter angles, and further estimates the direct-only component of the light that falls at the former angles. Further, a processing unit may use the estimated direct component to calculate a reconstructed 3D shape, such as a 3D shape of a finger vein pattern, using an algebraic reconstruction technique.

    摘要翻译： 在本发明的示例性实施方式中，来自散射场景的光通过空间光衰减图案并撞击照相机的传感器平面。 基于所述相机对所接收的光的测量，处理单元计算所接收的光的角度样本。 以某一角度撞击传感器平面的光包括散射和直接传输的部件; 而以其他角度撞击的光仅包括散射光。 处理单元计算以后角度落下的散射光强度的多项式模型，并且进一步估计以前一角度落下的光的直接分量。 此外，处理单元可以使用估计的直接分量来使用代数重建技术来计算重建的3D形状，例如手指静脉图案的3D形状。

    METHOD FOR RECEIVING DATA IN MULTI INPUT MULTI OUTPUT
    6.
    发明申请
    METHOD FOR RECEIVING DATA IN MULTI INPUT MULTI OUTPUT 失效
    用于在多输入多输出中接收数据的方法

    公开(公告)号：US20120087400A1

    公开(公告)日：2012-04-12

    申请号：US13376831

    申请日：2009-11-06

    申请人： Jaewon Kim ,  Jaewon Chang ,  Dong-Uk Lee ,  Wonjin Sung ,  Byoung-Hoon Kim ,  Jun-Ho Jo

    发明人： Jaewon Kim ,  Jaewon Chang ,  Dong-Uk Lee ,  Wonjin Sung ,  Byoung-Hoon Kim ,  Jun-Ho Jo

    IPC分类号： H04B1/38 ,  H04L27/06

    CPC分类号： H04B7/043 ,  H04B7/0478 ,  H04B7/0639

    摘要： Disclosed is a method for receiving data in a Multi Input Multi Output (MIMO) system, the method comprising: decoding data transmitted from a transmitter by using one beam-forming vector included in a codebook that beam-forming vectors are formed in a hierarchical structure according to at least one of change directions of radio channels, the number of channel change directions, and a change rate; determining whether to update the beam-forming vector based on the radio channel changes; selecting other beam-forming vector included in the codebook having a hierarchical structure when it is determined that update for the beam-forming vector is required; feed-backing information about an index indicating where the selected beam-forming vector is located in the hierarchical structure of the codebook to the transmitter; and decoding data received from the transmitter by using the selected beam-forming vector.

    摘要翻译： 公开了一种用于在多输入多输出（MIMO）系统中接收数据的方法，该方法包括：通过使用码本中包含的一个波束形成向量解码从发射机发送的波束形成向量，其中波束形成向量以分层结构形成 根据无线电信道的改变方向，频道改变方向的数量和变化率中的至少一个; 基于无线电信道确定是否更新波束形成向量; 当确定需要更新波束形成矢量时，选择具有分层结构的码本中包括的其它波束形成矢量; 关于指示所选波束形成向量在码本的层级结构中位于发射机的索引的反馈信息; 以及通过使用所选择的波束形成向量来解码从发射机接收的数据。

    RFID tag with a modified dipole antenna
    8.
    发明授权
    RFID tag with a modified dipole antenna 有权
    具有修改偶极天线的RFID标签

    公开(公告)号：US08717244B2

    公开(公告)日：2014-05-06

    申请号：US11870789

    申请日：2007-10-11

    申请人： Terrence H. Joyce, Jr. ,  Swagata R. Banerjee ,  William C. Egbert ,  Katherine A. Brown ,  Jaewon Kim ,  William A. Mittelstadt ,  Robert A. Sainati

    发明人： Terrence H. Joyce, Jr. ,  Swagata R. Banerjee ,  William C. Egbert ,  Katherine A. Brown ,  Jaewon Kim ,  William A. Mittelstadt ,  Robert A. Sainati

    IPC分类号： H01Q9/28

    CPC分类号： H01Q1/2225 ,  H01Q1/38 ,  H01Q9/24 ,  H01Q9/26

    摘要： In general, the disclosure describes an RFID tag designed such that the tag is both covert and not easily blocked from the interrogation signal by the hand or other body part of a person. In particular, the RFID tag is designed to have a long, narrow aspect that allows placement of the tag in locations on or in a book that are inconspicuous to the casual observer while extending beyond a hand of a person holding the book by the spine on or near a geometry centerline. The RFID tag includes a dipole segment and a loop segment coupled to the dipole segment. The loop segment of the modified dipole antenna provides the antenna with larger signal strength than conventional dipole antennas. Moreover, the conductive loop segment also provides improved impedance matching capabilities to allow the modified dipole antenna to match the impedance of an integrated circuit (IC) chip of the RFID tag.

    摘要翻译： 通常，本公开描述了RFID标签，其被设计成使得标签既隐蔽又不容易被人或其他身体部位的询问信号阻止。 特别地，RFID标签被设计成具有长而狭窄的方面，其允许将标签放置在书籍上或书籍中的位置上，这些位置对于偶然的观察者不显眼，同时延伸到通过脊柱拿着书的人的手 或几何中心线附近。 RFID标签包括耦合到偶极子段的偶极段和环段。 改进的偶极子天线的环段为天线提供比常规偶极天线更大的信号强度。 此外，导电环路段还提供改进的阻抗匹配能力，以允许修改的偶极天线匹配RFID标签的集成电路（IC）芯片的阻抗。

    Methods and Apparatus for Direct-Global Separation of Light Using Angular Filtering
    9.
    发明申请
    Methods and Apparatus for Direct-Global Separation of Light Using Angular Filtering 有权
    使用角度滤波直接全局分离光的方法和装置

    公开(公告)号：US20110191073A1

    公开(公告)日：2011-08-04

    申请号：US12700654

    申请日：2010-02-04

    申请人： Jaewon Kim ,  Ramesh Raskar

    发明人： Jaewon Kim ,  Ramesh Raskar

    IPC分类号： G06F17/10 ,  G01B11/26 ,  G01J3/50 ,  H04N7/18

    CPC分类号： G01B11/26 ,  G01J3/50 ,  G06F17/10 ,  H04N7/18

    摘要： In an exemplary implementation of this invention, light from a scattering scene passes through a spatial light attenuation pattern and strikes a sensor plane of a camera. Based on said camera's measurements of the received light, a processing unit calculates angular samples of the received light. Light that strikes the sensor plane at certain angles comprises both scattered and directly transmitted components; whereas light that strikes at other angles comprises solely scattered light. A processing unit calculates a polynomial model for the intensity of scattered-only light that falls at the latter angles, and further estimates the direct-only component of the light that falls at the former angles. Further, a processing unit may use the estimated direct component to calculate a reconstructed 3D shape, such as a 3D shape of a finger vein pattern, using an algebraic reconstruction technique.

    摘要翻译： 在本发明的示例性实施方式中，来自散射场景的光通过空间光衰减图案并撞击照相机的传感器平面。 基于所述相机对所接收的光的测量，处理单元计算所接收的光的角度样本。 以某一角度撞击传感器平面的光包括散射和直接传输的部件; 而以其他角度撞击的光仅包括散射光。 处理单元计算以后角度落下的散射光强度的多项式模型，并且进一步估计以前一角度落下的光的直接分量。 此外，处理单元可以使用估计的直接分量来使用代数重建技术来计算重建的3D形状，例如手指静脉图案的3D形状。