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    APPARATUS FOR SYNCHRONIZING CLOCK IN REAL-TIME LOCATING SYSTEM AND METHOD THEREFOR
    1.
    发明申请
    APPARATUS FOR SYNCHRONIZING CLOCK IN REAL-TIME LOCATING SYSTEM AND METHOD THEREFOR 失效
    用于在实时定位系统中同步时钟的装置及其方法

    公开(公告)号：US20100034539A1

    公开(公告)日：2010-02-11

    申请号：US12085767

    申请日：2005-12-27

    申请人： Kwang-Ho Ko ,  Chang-Sub Shin ,  Hyun Lee ,  Won-Chul Choi ,  Woo-Yong Lee ,  Choon-Sik Yim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

    发明人： Kwang-Ho Ko ,  Chang-Sub Shin ,  Hyun Lee ,  Won-Chul Choi ,  Woo-Yong Lee ,  Choon-Sik Yim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

    IPC分类号： H04J14/08

    CPC分类号： H04W56/00 ,  H04B7/2693 ,  H04J3/0667

    摘要： A highly precise clock synchronization apparatus in a real-time locating system (RTLS), includes an optical transmitting/receiving unit for receiving a clock information frame from a clock synchronization server, converting the received clock information frame in series-parallel, and transmitting/receiving the clock information data and the clock information; an offset estimation unit for detecting a preamble signal and a clock information signal from the series-parallel converted clock information frame, calculating a phase difference value by comparing the detected preamble signal with the detected clock information signal, and outputting an offset value based on the calculated phase difference value; and a clock synchronization unit for updating a local clock value to a time of the clock synchronization server based on the offset value and the clock information frame.

    摘要翻译： 一种实时定位系统（RTLS）中的高精度时钟同步装置，包括一个用于从时钟同步服务器接收时钟信息帧的光发送/接收单元，并行地接收所接收的时钟信息帧，并发送/ 接收时钟信息数据和时钟信息; 偏移估计单元，用于从串并行转换时钟信息帧中检测前置码信号和时钟信息信号，通过将检测到的前导信号与检测到的时钟信息信号进行比较来计算相位差值，并输出基于 计算相位差值; 以及时钟同步单元，用于基于偏移值和时钟信息帧将本地时钟值更新为时钟同步服务器的时间。

    Apparatus for synchronizing clock in real-time locating system and method therefor
    4.
    发明授权
    Apparatus for synchronizing clock in real-time locating system and method therefor 失效
    用于实时定位系统中的时钟同步的装置及其方法

    公开(公告)号：US08005369B2

    公开(公告)日：2011-08-23

    申请号：US12085767

    申请日：2005-12-27

    申请人： Kwang-Ho Ko ,  Chang-Sub Shin ,  Hyun Lee ,  Won-Chul Choi ,  Woo-Yong Lee ,  Choon-Sik Yim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

    发明人： Kwang-Ho Ko ,  Chang-Sub Shin ,  Hyun Lee ,  Won-Chul Choi ,  Woo-Yong Lee ,  Choon-Sik Yim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

    IPC分类号： H04B10/00

    CPC分类号： H04W56/00 ,  H04B7/2693 ,  H04J3/0667

    摘要： A highly precise clock synchronization apparatus in a real-time locating system (RTLS), includes an optical transmitting/receiving unit for receiving a clock information frame from a clock synchronization server, converting the received clock information frame in series-parallel, and transmitting/receiving the clock information data and the clock information; an offset estimation unit for detecting a preamble signal and a clock information signal from the series-parallel converted clock information frame, calculating a phase difference value by comparing the detected preamble signal with the detected clock information signal, and outputting an offset value based on the calculated phase difference value; and a clock synchronization unit for updating a local clock value to a time of the clock synchronization server based on the offset value and the clock information frame.

    摘要翻译： 一种实时定位系统（RTLS）中的高精度时钟同步装置，包括一个用于从时钟同步服务器接收时钟信息帧的光发送/接收单元，并行地接收所接收的时钟信息帧，并发送/ 接收时钟信息数据和时钟信息; 偏移估计单元，用于从串并行转换时钟信息帧中检测前置码信号和时钟信息信号，通过将检测到的前导信号与检测到的时钟信息信号进行比较来计算相位差值，并输出基于 计算相位差值; 以及时钟同步单元，用于基于偏移值和时钟信息帧将本地时钟值更新为时钟同步服务器的时间。