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    Techniques for built environment representations
    2.
    发明授权
    Techniques for built environment representations 有权

    公开(公告)号：US10127434B2

    公开(公告)日：2018-11-13

    申请号：US15211271

    申请日：2016-07-15

    申请人： Manjuprakash Rama Rao ,  Rambabu Chinta ,  Surajit Borah

    发明人： Manjuprakash Rama Rao ,  Rambabu Chinta ,  Surajit Borah

    IPC分类号： G06K9/00 ,  H04W4/02 ,  H04B10/114 ,  G06T15/10 ,  G06K9/62 ,  H04N13/271

    摘要： Described are techniques for indoor mapping and navigation. A reference mobile device including sensors to capture range, depth and position data and processes such data. The reference mobile device further includes a processor that is configured to process the captured data to generate a 2D or 3D mapping of localization information of the device that is rendered on a display unit, execute an object recognition to identify types of installed devices of interest of interest in a part of the 2D or 3D device mapping, integrate the 3D device mapping in the built environment to objects in the environment through capturing point cloud data along with 2D image or video frame data of the build environment.

    Embedded loop delay compensation circuit for multi-channel transceiver
    3.
    发明授权
    Embedded loop delay compensation circuit for multi-channel transceiver 有权
    用于多通道收发器的嵌入式回路延迟补偿电路

    公开(公告)号：US06920155B2

    公开(公告)日：2005-07-19

    申请号：US09796782

    申请日：2001-03-01

    申请人： Manjuprakash Rama Rao

    发明人： Manjuprakash Rama Rao

    IPC分类号： H04B7/26 ,  H04J3/06 ,  H04W56/00 ,  H04W92/12

    CPC分类号： H04J3/0682 ,  H04J3/1623 ,  H04W56/001 ,  H04W56/009 ,  H04W92/12

    摘要： A circuit for measuring and compensating for propagation delays in a communication system is described. In communication systems such as wireless networks a number of base stations operate within cells to provide wide area coverage. In such systems a base station controller will communicate with each base station to provide certain information including a synchronizing time stamp. When the distance between the base station controller and each of the individual base stations is not a constant a propagation delay introduced by this distance differential will mean that the time stamp transmitted from the base station controller will not reach all the base stations at the same time. This invention relates to a system and method of measuring respective propagation delays and for introducing a compensating value.

    摘要翻译： 描述了用于测量和补偿通信系统中的传播延迟的电路。 在诸如无线网络的通信系统中，多个基站在小区内操作以提供广泛的覆盖。 在这种系统中，基站控制器将与每个基站通信以提供包括同步时间戳的某些信息。 当基站控制器与每个基站之间的距离不恒定时，由该距离差引入的传播延迟将意味着从基站控制器发送的时间标记将不会同时到达所有基站 。 本发明涉及一种测量各个传播延迟并引入补偿值的系统和方法。