公开(公告)号：US07570199B2

公开(公告)日：2009-08-04

申请号：US11925204

申请日：2007-10-26

申请人： Sang Yub Lee ,  Chang Soo Yang ,  Min Kyoung Kwon ,  Seung Heon Han

发明人： Sang Yub Lee ,  Chang Soo Yang ,  Min Kyoung Kwon ,  Seung Heon Han

IPC分类号： G01S13/75

CPC分类号： G01S13/76

摘要： There is provided a device and method for detecting an overlap of pulse signals, capable of easily detecting a point where reference and delayed pulse signals overlap each other, and an apparatus for estimating a distance using the same. The device for detecting an overlap of pulse signals, the device detecting a point where first and second pulse signals having different frequencies begin to overlap each other, the device including: a duty adjustor generating a third pulse signal by increasing a duty of the second pulse signal; a pulse signal calculator multiplying the first and second pulse signals by the third pulse signal, respectively and adding respective results together to output a signal; and an overlap determiner determining a middle of a pulse with a greatest width in the signal outputted from the pulse signal calculator as a point where the first and second pulse signals overlap each other.

摘要翻译： 提供了一种用于检测脉冲信号的重叠的装置和方法，其能够容易地检测参考和延迟的脉冲信号彼此重叠的点，以及用于使用该距离估计距离的装置。 用于检测脉冲信号的重叠的装置，所述装置检测具有不同频率的第一和第二脉冲信号的点开始彼此重叠，所述装置包括：占空比调节器，通过增加第二脉冲的占空比来产生第三脉冲信号 信号; 脉冲信号计算器分别将第一和第二脉冲信号乘以第三脉冲信号，并将各个结果相加并输出信号; 以及重叠确定器，确定从脉冲信号计算器输出的信号中具有最大宽度的脉冲的中间，作为第一和第二脉冲信号彼此重叠的点。

公开(公告)号：US20100144298A1

公开(公告)日：2010-06-10

申请号：US12618156

申请日：2009-11-13

申请人： Chang Soo YANG ,  Hyung Chul Park ,  Sang Yub Lee

发明人： Chang Soo YANG ,  Hyung Chul Park ,  Sang Yub Lee

IPC分类号： H04B1/16

CPC分类号： H04B1/30

摘要： Provided is an apparatus and method for generating I/Q signals in a multi-port network, which can generate I/Q signals with accurate coordinates and sizes by repeatedly controlling the coordinates and size of an initial parameter in accordance with a predetermined reference condition. The I/Q signal generating apparatus of a multi-port network includes a multi-port network unit, a signal generation unit, and a control unit. The multi-port network unit converts a receive (RX) signal into a plurality of phase signals with different phases in accordance with a predetermined reference signal. The signal generation unit restores original data on the basis of the power of the phase signals received from the multi-port network unit. The control unit controls the restoration operation of the signal generation unit to be repeated so that the original data restored by the signal generation unit satisfies a predetermined reference range.

摘要翻译： 提供了一种用于在多端口网络中生成I / Q信号的装置和方法，其可以通过根据预定的参考条件重复地控制初始参数的坐标和大小来生成具有精确坐标和尺寸的I / Q信号。 多端口网络的I / Q信号发生装置包括多端口网络单元，信号生成单元和控制单元。 多端口网络单元根据预定的参考信号将接收（RX）信号转换成具有不同相位的多个相位信号。 信号生成单元基于从多端口网络单元接收的相位信号的功率恢复原始数据。 控制单元控制要重复的信号生成单元的恢复操作，使得由信号生成单元恢复的原始数据满足预定的参考范围。

公开(公告)号：US20080292023A1

公开(公告)日：2008-11-27

申请号：US12124881

申请日：2008-05-21

申请人： Sang Yub Lee ,  Chang Soo Yang ,  Wan Cheol Yang

发明人： Sang Yub Lee ,  Chang Soo Yang ,  Wan Cheol Yang

IPC分类号： H04L25/06 ,  H04L27/06

CPC分类号： H04L27/0014 ,  H04L2027/0024 ,  H04L2027/0046

摘要： There are provided a direct sampling type wireless receiver and a method using the same that reduce nonlinearity and DC offset by using a multi-port network and a carrier frequency direct conversion method with a low sampling rate of a direct sampling method in a wireless communication receiver. A direct sampling type wireless receiver according to an aspect of the invention includes: a reference signal generation unit supplying a first reference signal having a predetermined frequency and a second reference signal having a higher frequency than the first reference signal; a down sampling unit sampling an input RF signal according to the first reference signal; an analog-to-digital converting unit converting the signal sampled by the down sampling unit into a digital signal according to the second reference signal; and a multiple-input multiple-output port unit dividing the digital signal from the analog-to-digital converting unit into a plurality of digital signals, generating a plurality of carrier signals having different phases from each other by shifting phases of the digital signals, and outputting a plurality of phase signals having different phases from each other by adding the plurality of carrier signals and the plurality of digital signals to each other.

摘要翻译： 提供了一种直接采样型无线接收机及其使用方法，其通过使用多端口网络和在无线通信接收机中具有直接采样方式的低采样率的载波频率直接转换方法来减少非线性和DC偏移 。 根据本发明的一个方面的直接采样型无线接收机包括：提供具有预定频率的第一参考信号的参考信号产生单元和具有比第一参考信号更高频率的第二参考信号; 下采样单元，根据第一参考信号对输入RF信号进行采样; 模拟数字转换单元，根据第二参考信号将由下采样单元采样的信号转换为数字信号; 以及将来自模数转换单元的数字信号分割为多个数字信号的多输入多输出端口单元，通过移位数字信号的相位来产生具有不同相位的多个载波信号， 并且通过将多个载波信号和多个数字信号彼此相加来输出具有彼此不同相位的多个相位信号。

公开(公告)号：US07752010B2

公开(公告)日：2010-07-06

申请号：US11967796

申请日：2007-12-31

申请人： Wan Cheol Yang ,  Chang Soo Yang ,  Sang Yub Lee

发明人： Wan Cheol Yang ,  Chang Soo Yang ,  Sang Yub Lee

IPC分类号： G01B5/02 ,  G01S13/08

CPC分类号： G01S13/76

摘要： There is provided a distance measuring apparatus having system flexibility by varying a distance measuring range and a distance measuring resolution according to an environment and circumstance. The apparatus includes a reference pulse generator and a delay pulse generator capable of controlling frequencies of a reference pulse and a delay pulse and duty ratios of the reference pulse and the delay pulse. The reference pulse generator and the delay pulse generator include a programmable clock generation unit generating a clock of a frequency determined by a frequency control signal and a duty ratio control unit controlling a duty ratio of the clock generated by the programmable clock generation unit.

摘要翻译： 通过根据环境和环境改变距离测量范围和距离测量分辨率，提供了具有系统灵活性的距离测量装置。 该装置包括参考脉冲发生器和能够控制参考脉冲和延迟脉冲的频率以及参考脉冲和延迟脉冲的占空比的延迟脉冲发生器。 参考脉冲发生器和延迟脉冲发生器包括产生由频率控制信号确定的频率的时钟的可编程时钟产生单元和控制由可编程时钟产生单元产生的时钟占空比的占空比控制单元。

公开(公告)号：US20100142588A1

公开(公告)日：2010-06-10

申请号：US12616439

申请日：2009-11-11

申请人： Chang Soo Yang ,  Hyung Chul Park ,  Wan Cheol Yang ,  Sang Yub Lee

发明人： Chang Soo Yang ,  Hyung Chul Park ,  Wan Cheol Yang ,  Sang Yub Lee

IPC分类号： H04B1/00

CPC分类号： H04B1/707 ,  H04J13/0003

摘要： A parallel sequence spread spectrum type chaotic signal transmission device is disclosed to convert a serial data signal into a parallel data signal and transmit a chaotic signal according to the converted data signal. The parallel sequence spread spectrum type chaotic signal transmission device includes: a signal converting unit that converts serial data desired to be transmitted into parallel data having a pre-set unit; a chaotic signal generating unit that generates a pre-set chaotic signal; and an amplifying unit that amplifies the chaotic signal from the chaotic signal generating unit according to the data which has been converted by the signal converting unit.

摘要翻译： 公开了一种并行序列扩频型混沌信号传输装置，用于将串行数据信号转换为并行数据信号，并根据转换的数据信号发送混沌信号。 并行序列扩频型混沌信号发送装置包括：信号转换单元，将期望发送的串行数据转换成具有预设单元的并行数据; 混沌信号生成单元，其生成预设混沌信号; 以及放大单元，其根据由信号转换单元转换的数据，放大来自混沌信号生成单元的混沌信号。

公开(公告)号：US07663536B2

公开(公告)日：2010-02-16

申请号：US11850636

申请日：2007-09-05

申请人： Wan Cheol Yang ,  Chang Soo Yang ,  Sang Yub Lee

发明人： Wan Cheol Yang ,  Chang Soo Yang ,  Sang Yub Lee

IPC分类号： G01S1/02

CPC分类号： G01S13/76

摘要： A ranging apparatus includes a reference pulse generator generating a reference pulse having a first frequency at a first point in time of transmitting a ranging signal from a first device; a delay pulse generator generating a delay pulse signal having a second frequency at a second point in time of receiving the a response signal transmitted from the second device in response to the ranging signal; an overlap detector detecting a third point in time that the reference and delay pulses overlap each other; a counter counting one of the reference and delay pulses until the third point; and a distance calculator calculating an amount of time from the first point to the second point by applying the first and second frequencies, and a count value of the counter and calculating the distance between the first device and the second device by using the amount of time.

摘要翻译： 测距装置包括参考脉冲发生器，在从第一设备发送测距信号的第一时间点产生具有第一频率的参考脉冲; 延迟脉冲发生器，在接收到响应于测距信号从第二设备发送的响应信号的第二时刻产生具有第二频率的延迟脉冲信号; 检测第三时间点的参考和延迟脉冲彼此重叠的重叠检测器; 计数参考和延迟脉冲之一直到第三点的计数器; 以及距离计算器，通过应用第一和第二频率来计算从第一点到第二点的时间量，以及计数器的计数值，并且使用时间量计算第一设备和第二设备之间的距离 。

公开(公告)号：US07586293B2

公开(公告)日：2009-09-08

申请号：US11847761

申请日：2007-08-30

申请人： Man Suk Seo ,  Hyung Cheol Park ,  Seong Soo Lee ,  Sang Yub Lee ,  Chang Soo Yang ,  Wan Cheol Yang

发明人： Man Suk Seo ,  Hyung Cheol Park ,  Seong Soo Lee ,  Sang Yub Lee ,  Chang Soo Yang ,  Wan Cheol Yang

IPC分类号： H04L27/20

CPC分类号： H03C3/02 ,  H03C1/02 ,  H03K7/04 ,  H03K2005/00247 ,  H04B1/71635

摘要： Provided is a digital modulation circuit constructed with only a digital circuit. The digital modulation circuit includes: a clock generator which generates a reference clock pulse having a predetermined period; an up/down counter which generates a count value having predetermined bits by up-counting or down-counting the reference clock pulse and outputs a bit in the count value as a transmission signal; a controller which determines a counting start/end time point of the up/down counter and determine which one of the up-counting operation and the down-counting operation of the up/down counter is to be performed, according to a value of digital transmission data that is to be transmitted; and a band-pass filter which converts a waveform of the transmission signal output from the up/down counter into a sine waveform.

摘要翻译： 提供了仅由数字电路构成的数字调制电路。 数字调制电路包括：时钟发生器，其产生具有预定周期的参考时钟脉冲; 向上/向下计数器，其通过对参考时钟脉冲进行向上计数或递减计数来产生具有预定位的计数值，并将计数值中的位作为发送信号输出; 确定上/下计数器的计数开始/结束时间点的控制器，并根据数字的数值确定要执行向上/向下计数器的向上计数操作和向下计数操作中的哪一个 要发送的发送数据; 以及将从上/下计数器输出的发送信号的波形转换为正弦波形的带通滤波器。

公开(公告)号：US20070075873A1

公开(公告)日：2007-04-05

申请号：US11537201

申请日：2006-09-29

申请人： Chang Soo Yang ,  Jeong Suk Lee ,  Sang Do Cho ,  Kwang Du Lee ,  Wan Chul Yang ,  Kyu Hwan An ,  Jong In Na ,  Ki Hwan Kim ,  Sang Gyu Park ,  Sang Yub Lee

发明人： Chang Soo Yang ,  Jeong Suk Lee ,  Sang Do Cho ,  Kwang Du Lee ,  Wan Chul Yang ,  Kyu Hwan An ,  Jong In Na ,  Ki Hwan Kim ,  Sang Gyu Park ,  Sang Yub Lee

IPC分类号： G08B5/22

CPC分类号： H04W64/00 ,  G01S5/0081 ,  G01S5/0226 ,  G01S5/14 ,  G01S13/878 ,  G07C5/008 ,  H04W24/00 ,  H04W48/16

摘要： A location awareness system using RFID and a wireless communication apparatus for the location awareness are provided. The location awareness system includes a RFID tag, a wireless communication apparatus for location awareness, more than three anchors, a coordinator, and a server. The wireless communication apparatus identifies the target object with the RFID attached through communicating with the RFID tag. The anchors receive information about the identified target object and measuring a distance by communication with the wireless communication apparatus using a predetermined wireless communication scheme. The coordinator collects the measure distance and the information from each of the anchors. The server calculates a location of the target object by receiving information about the measured distances and the target objects from the coordinator and calculating the location of the wireless communication apparatus using the received information.

摘要翻译： 提供了使用RFID的位置感知系统和用于位置感知的无线通信装置。 位置感知系统包括RFID标签，用于位置感知的无线通信装置，三个以上的锚点，协调器和服务器。 无线通信装置通过与RFID标签通信来附着RFID来识别目标对象。 锚点通过使用预定的无线通信方案与无线通信装置进行通信来接收关于所识别的目标对象的信息并测量距离。 协调员从每个锚收集测量距离和信息。 服务器通过从协调器接收关于测量距离的信息和目标对象并使用接收到的信息来计算无线通信装置的位置来计算目标对象的位置。

公开(公告)号：US07953184B2

公开(公告)日：2011-05-31

申请号：US12124881

申请日：2008-05-21

申请人： Sang Yub Lee ,  Chang Soo Yang Yang ,  Wan Cheol Yang

发明人： Sang Yub Lee ,  Chang Soo Yang Yang ,  Wan Cheol Yang

IPC分类号： H04L27/18 ,  H04L27/22 ,  H04B1/30

CPC分类号： H04L27/0014 ,  H04L2027/0024 ,  H04L2027/0046

摘要： There are provided a direct sampling type wireless receiver and a method using the same that reduce nonlinearity and DC offset by using a multi-port network and a carrier frequency direct conversion method with a low sampling rate of a direct sampling method in a wireless communication receiver. A direct sampling type wireless receiver according to an aspect of the invention includes: a reference signal generation unit supplying a first reference signal having a predetermined frequency and a second reference signal having a higher frequency than the first reference signal; a down sampling unit sampling an input RF signal according to the first reference signal; an analog-to-digital converting unit converting the signal sampled by the down sampling unit into a digital signal according to the second reference signal; and a multiple-input multiple-output port unit dividing the digital signal from the analog-to-digital converting unit into a plurality of digital signals, generating a plurality of carrier signals having different phases from each other by shifting phases of the digital signals, and outputting a plurality of phase signals having different phases from each other by adding the plurality of carrier signals and the plurality of digital signals to each other.

摘要翻译： 提供了一种直接取样型无线接收机及其使用方法，其通过使用多端口网络和在无线通信接收机中具有直接采样方式的低采样率的载波频率直接转换方法来减少非线性和DC偏移 。 根据本发明的一个方面的直接采样型无线接收机包括：提供具有预定频率的第一参考信号的参考信号产生单元和具有比第一参考信号更高频率的第二参考信号; 下采样单元，根据第一参考信号对输入RF信号进行采样; 模拟数字转换单元，根据第二参考信号将由下采样单元采样的信号转换为数字信号; 以及将来自模数转换单元的数字信号分割为多个数字信号的多输入多输出端口单元，通过移位数字信号的相位来产生具有不同相位的多个载波信号， 并且通过将多个载波信号和多个数字信号彼此相加来输出具有彼此不同相位的多个相位信号。

公开(公告)号：US20100091742A1

公开(公告)日：2010-04-15

申请号：US12468324

申请日：2009-05-19

申请人： Sang Yub Lee ,  Chang Soo Yang

发明人： Sang Yub Lee ,  Chang Soo Yang

IPC分类号： H04J3/06

CPC分类号： H04L7/042 ,  H04L27/2601

摘要： Provides is a correlation method for acquiring a synchronization in a wireless local area network (WLAN). In the correlation method, an auto-correlation value is measured in a receive (RX) signal based on the WLAN standard by use of a successive partial short preambles. A time point when the auto-correlation value becomes smaller than a predetermined threshold value is detected. A cross-correlation value for the successive partial short preambles is measured from the time point when the auto-correlation value becomes smaller than the predetermined threshold value. A time point when the cross-correlation value becomes maximum is determined as a reference time point for synchronization acquisition.

摘要翻译： 提供一种用于获取无线局域网（WLAN）中的同步的相关方法。 在相关方法中，通过使用连续的部分短前导码，基于WLAN标准在接收（RX）信号中测量自相关值。 检测自动相关值变得小于预定阈值的时间点。 从自相关值变得小于预定阈值的时间点测量连续部分短前导码的互相关值。 将互相关值变为最大的时间点被确定为用于同步获取的参考时间点。