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    METHOD AND APPARATUS OF THE VARIABLE POINTS IFFT/FFT
    1.
    发明申请
    METHOD AND APPARATUS OF THE VARIABLE POINTS IFFT/FFT 有权
    可变点IFFT / FFT的方法和装置

    公开(公告)号：US20070201354A1

    公开(公告)日：2007-08-30

    申请号：US11681201

    申请日：2007-03-02

    申请人： Hyun-Seo Oh ,  Hyoung-Goo Jeon ,  Hyun Lee ,  Won-Chul Choi

    发明人： Hyun-Seo Oh ,  Hyoung-Goo Jeon ,  Hyun Lee ,  Won-Chul Choi

    IPC分类号： H04J11/00

    CPC分类号： G06F17/142 ,  H04L27/2628 ,  H04L27/265

    摘要： Provided are a method and apparatus for performing a variable point Inverse Fast Fourier Transform (IFFT)/Fast Fourier Transform (FFT). The apparatus for performing a variable point IFFT includes: an IFFT interpolator generating interpolation data signals having a determined point and interpolating a plurality of interpolation data, the number of which depends on an IFFT operation mode signal into input data; an IFFT operator generating IFFT operation data signals by performing an IFFT operation for the interpolated data signals; an IFFT mode selector selecting and outputting some of the IFFT operation data signals in response to the IFFT operation mode signal so that the selected IFFT operation data have the same number of points as the input data; and a control unit outputting the IFFT operation. Therefore, it is possible to easily compute variably sized IFFT/FFT hardware.

    摘要翻译： 提供了一种用于执行可变点快速傅立叶逆变换（IFFT）/快速傅里叶变换（FFT）的方法和装置。 用于执行可变点IFFT的装置包括：IFFT内插器，产生具有确定点并且内插多个内插数据的插值数据信号，其数量取决于IFFT操作模式信号为输入数据; IFFT操作者通过对内插的数据信号执行IFFT操作来产生IFFT操作数据信号; IFFT模式选择器响应于IFFT操作模式信号来选择和输出一些IFFT操作数据信号，使得所选择的IFFT操作数据具有与输入数据相同的点数; 以及输出IFFT操作的控制单元。 因此，可以容易地计算可变大小的IFFT / FFT硬件。

    Method and apparatus of the variable points IFFT/FFT
    2.
    发明授权
    Method and apparatus of the variable points IFFT/FFT 有权
    可变点IFFT / FFT的方法和装置

    公开(公告)号：US07626923B2

    公开(公告)日：2009-12-01

    申请号：US11681201

    申请日：2007-03-02

    申请人： Hyun-Seo Oh ,  Hyoung-Goo Jeon ,  Hyun Lee ,  Won-Chul Choi

    发明人： Hyun-Seo Oh ,  Hyoung-Goo Jeon ,  Hyun Lee ,  Won-Chul Choi

    IPC分类号： H04J11/00

    CPC分类号： G06F17/142 ,  H04L27/2628 ,  H04L27/265

    摘要： Provided are a method and apparatus for performing a variable point Inverse Fast Fourier Transform (IFFT)/Fast Fourier Transform (FFT). The apparatus for performing a variable point IFFT includes: an IFFT interpolator generating interpolation data signals having a determined point and interpolating a plurality of interpolation data, the number of which depends on an IFFT operation mode signal into input data; an IFFT operator generating IFFT operation data signals by performing an IFFT operation for the interpolated data signals; an IFFT mode selector selecting and outputting some of the IFFT operation data signals in response to the IFFT operation mode signal so that the selected IFFT operation data have the same number of points as the input data; and a control unit outputting the IFFT operation. Therefore, it is possible to easily compute variably sized IFFT/FFT hardware.

    摘要翻译： 提供了一种用于执行可变点快速傅立叶逆变换（IFFT）/快速傅里叶变换（FFT）的方法和装置。 用于执行可变点IFFT的装置包括：IFFT内插器，产生具有确定点并插入多个内插数据的插值数据信号，其数量取决于IFFT操作模式信号为输入数据; IFFT操作者通过对内插的数据信号执行IFFT操作来产生IFFT操作数据信号; IFFT模式选择器响应于IFFT操作模式信号来选择和输出一些IFFT操作数据信号，使得所选择的IFFT操作数据具有与输入数据相同的点数; 以及输出IFFT操作的控制单元。 因此，可以容易地计算可变大小的IFFT / FFT硬件。

    Channel estimation method and training signal creating method for channel estimation in mimo- ofdm system
    3.
    发明申请
    Channel estimation method and training signal creating method for channel estimation in mimo- ofdm system 审中-公开
    信道估计方法和训练信号创建方法，用于模拟系统中的信道估计

    公开(公告)号：US20090154585A1

    公开(公告)日：2009-06-18

    申请号：US11990632

    申请日：2005-12-02

    申请人： Hyun Lee ,  Won-Chul Choi ,  Hyoung-Goo Jeon

    发明人： Hyun Lee ,  Won-Chul Choi ,  Hyoung-Goo Jeon

    IPC分类号： H04B7/02

    CPC分类号： H04L25/022 ,  H04L25/0204 ,  H04L25/0224 ,  H04L27/2601

    摘要： Provided are a training signal generation method using impulse trains encoded with orthogonal codes and a channel estimation method using an orthogonal code decoding in a Multiple-Input Multiple-Output-Orthogonal Frequency Division Multiplex (MIMO-OFDM) system. The channel estimation method using the orthogonal code decoding in the MIMO-OFDM system includes the steps of creating a plurality of orthogonal codes depending on the number of receive antennas, decoding a signal received through each receive antenna by using the orthogonal codes, and estimating a channel response by averaging the received signals decoded with the orthogonal codes every OFDM symbol.

    摘要翻译： 提供了使用以正交码编码的脉冲串的训练信号生成方法和在多输入多输出正交频分复用（MIMO-OFDM）系统中使用正交码解码的信道估计方法。 在MIMO-OFDM系统中使用正交码解码的信道估计方法包括根据接收天线的数量创建多个正交码的步骤，通过使用正交码对通过每个接收天线接收的信号进行解码，以及估计 通过对每个OFDM符号以正交码解码的接收信号进行平均来进行信道响应。

    Base station and mobile terminal for location detection, and location detecting method
    4.
    发明授权
    Base station and mobile terminal for location detection, and location detecting method 失效
    用于位置检测的基站和移动终端，以及位置检测方法

    公开(公告)号：US07714784B2

    公开(公告)日：2010-05-11

    申请号：US10882525

    申请日：2004-06-30

    申请人： Chang-Sub Shin ,  Hyun-Seo Oh ,  Hyun Lee

    发明人： Chang-Sub Shin ,  Hyun-Seo Oh ,  Hyun Lee

    IPC分类号： G01S1/08

    CPC分类号： G01S5/0263 ,  G01S1/08

    摘要： Disclosed are a base station and a mobile terminal for location detection, and a location detecting method. The base station in which a plurality of antennas having RF modules are installed transmits a signal including location information of each of the antennas to the mobile terminal. The mobile terminal carries out location detection by selectively using location information received from a GPS receiver or location information received from a DSRC transceiver. The base station and mobile terminal for location detection can perform location detection with high accuracy using the existing DSRC service. Thus, the base station and mobile terminal can carry out location detection having an error of approximately 10 m in downtown areas or buildings.

    摘要翻译： 公开了一种用于位置检测的基站和移动终端，以及位置检测方法。 其中安装有多个具有RF模块的天线的基站将包括每个天线的位置信息的信号发送到移动终端。 移动终端通过选择性地使用从GPS接收机接收的位置信息或从DSRC收发器接收的位置信息来执行位置检测。 用于位置检测的基站和移动终端可以使用现有的DSRC服务以高精度执行位置检测。 因此，基站和移动终端可以在市区或建筑物中进行大约10m的误差的位置检测。

    Base station and mobile terminal for location detection, and location detecting method
    5.
    发明申请
    Base station and mobile terminal for location detection, and location detecting method 失效
    用于位置检测的基站和移动终端，以及位置检测方法

    公开(公告)号：US20050128142A1

    公开(公告)日：2005-06-16

    申请号：US10882525

    申请日：2004-06-30

    申请人： Chang-Sub Shin ,  Hyun-Seo Oh ,  Hyun Lee

    发明人： Chang-Sub Shin ,  Hyun-Seo Oh ,  Hyun Lee

    IPC分类号： H04Q7/30 ,  G01S5/02 ,  G01S19/03 ,  G01S19/06 ,  G01S19/46 ,  G01S5/14 ,  G01S1/08

    CPC分类号： G01S5/0263 ,  G01S1/08

    摘要： Disclosed are a base station and a mobile terminal for location detection, and a location detecting method. The base station in which a plurality of antennas having RF modules are installed transmits a signal including location information of each of the antennas to the mobile terminal. The mobile terminal carries out location detection by selectively using location information received from a GPS receiver or location information received from a DSRC transceiver. The base station and mobile terminal for location detection can perform location detection with high accuracy using the existing DSRC service. Thus, the base station and mobile terminal can carry out location detection having an error of approximately 10 m in downtown areas or buildings.

    摘要翻译： 公开了一种用于位置检测的基站和移动终端，以及位置检测方法。 其中安装有多个具有RF模块的天线的基站将包括每个天线的位置信息的信号发送到移动终端。 移动终端通过选择性地使用从GPS接收机接收的位置信息或从DSRC收发器接收的位置信息来执行位置检测。 用于位置检测的基站和移动终端可以使用现有的DSRC服务以高精度执行位置检测。 因此，基站和移动终端可以在市区或建筑物中进行大约10m的误差的位置检测。

    Base station and mobile terminal for location detection, and location detecting method
    6.
    发明申请
    Base station and mobile terminal for location detection, and location detecting method 审中-公开
    用于位置检测的基站和移动终端，以及位置检测方法

    公开(公告)号：US20070188382A1

    公开(公告)日：2007-08-16

    申请号：US11732789

    申请日：2007-04-03

    申请人： Chang-Sub Shin ,  Hyun-Seo Oh ,  Hyun Lee

    发明人： Chang-Sub Shin ,  Hyun-Seo Oh ,  Hyun Lee

    IPC分类号： G01S1/08

    CPC分类号： G01S5/0263 ,  G01S1/08

    摘要： Disclosed are a base station and a mobile terminal for location detection, and a location detecting method. The base station in which a plurality of antennas having RF modules are installed transmits a signal including location information of each of the antennas to the mobile terminal. The mobile terminal carries out location detection by selectively using location information received from a GPS receiver or location information received from a DSRC transceiver. The base station and mobile terminal for location detection can perform location detection with high accuracy using the existing DSRC service. Thus, the base station and mobile terminal can carry out location detection having an error of approximately 10 m in downtown areas or buildings.

    摘要翻译： 公开了一种用于位置检测的基站和移动终端，以及位置检测方法。 其中安装有多个具有RF模块的天线的基站将包括每个天线的位置信息的信号发送到移动终端。 移动终端通过选择性地使用从GPS接收机接收的位置信息或从DSRC收发器接收的位置信息来执行位置检测。 用于位置检测的基站和移动终端可以使用现有的DSRC服务以高精度执行位置检测。 因此，基站和移动终端可以在市区或建筑物中进行大约10m的误差的位置检测。

    Apparatus for synchronizing clock in real-time locating system and method therefor
    7.
    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。

    APPARATUS FOR SYNCHRONIZING CLOCK IN REAL-TIME LOCATING SYSTEM AND METHOD THEREFOR
    8.
    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。