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21. 发明申请

US20120182836A1 COMMUNICATION SYSTEM USING ULTRASONIC WAVES 审中-公开
标题翻译：使用超声波的通信系统
公开(公告)号：US20120182836A1
公开(公告)日：2012-07-19
申请号：US13496870
申请日：2010-09-17
申请人： Byung-Jae Kwak , Kwang Chun Lee , Hyun Kyu Chung , Nah-Oak Song
发明人： Byung-Jae Kwak , Kwang Chun Lee , Hyun Kyu Chung , Nah-Oak Song
IPC分类号： G01S3/80 , H04B11/00
CPC分类号： H04B11/00
摘要： Disclosed is a technology for performing a communication using an ultrasonic wave in an environment where an electromagnetic shielding is so severe that a wireless communication using an electromagnetic is difficult. In the environment where the electromagnetic shielding is severe, an ultrasonic terminal according to the present invention may transmit the ultrasonic wave using a solid structure as a medium, and an ultrasonic base station may receive the ultrasonic wave using the solid structure as the medium.
摘要翻译：公开了一种在电磁屏蔽严重使得使用电磁波的无线通信困难的环境中使用超声波进行通信的技术。在电磁屏蔽严重的环境中，根据本发明的超声波端子可以使用固体结构作为介质传输超声波，并且超声波基站可以使用固体结构作为介质接收超声波。

22. 发明申请

US20120177819A1 Method of manufacturing lens 审中-公开
标题翻译：制造镜片的方法
公开(公告)号：US20120177819A1
公开(公告)日：2012-07-12
申请号：US13064618
申请日：2011-04-04
申请人： Kwang Chun Lee , Young Su Jin , Hye Ran Oh
发明人： Kwang Chun Lee , Young Su Jin , Hye Ran Oh
IPC分类号： B05D5/06
CPC分类号： B29D11/0073 , B29D11/00298 , B29D11/00442
摘要： There is provided a method of manufacturing a lens, including: forming a first lens layer having a protrusion and a groove part formed on a first surface thereof; forming a light shielding layer on the first surface; and forming a second lens on the first surface.
摘要翻译：提供一种制造透镜的方法，包括：形成具有突起的第一透镜层和形成在其第一表面上的凹槽部分; 在所述第一表面上形成遮光层; 以及在所述第一表面上形成第二透镜。

23. 发明授权

US08213891B2 Gain control apparatus and method in receiver of multiband OFDM system 失效
标题翻译：多频OFDM系统接收机增益控制装置及方法
公开(公告)号：US08213891B2
公开(公告)日：2012-07-03
申请号：US12507474
申请日：2009-07-22
申请人： Seong-Min Kim , Byung-Su Kang , Gweon-Do Jo , Jae-Ho Jung , Joon-Hyung Kim , Heon-Kook Kwon , Sung-Jun Lee , Kwang-Chun Lee
发明人： Seong-Min Kim , Byung-Su Kang , Gweon-Do Jo , Jae-Ho Jung , Joon-Hyung Kim , Heon-Kook Kwon , Sung-Jun Lee , Kwang-Chun Lee
IPC分类号： H04B1/06 , H04B7/00
CPC分类号： H04L27/2647 , H03G3/3068
摘要： A gain control apparatus in a receiver of multiband OFDM system includes: an amplifier amplifying a received signal based on a first auto gain control signal; an analog-to-digital converter for converting the amplified signal into a digital signal; band reception signal extractor for extracting a signal of a desired reception band from the converted digital signal for each reception band, and controlling gain of the extracted signal according to a second auto gain control signal; a reception power detector for detecting a reception power value of whole band from the converted digital signal; and a multiband integration baseband processor for generating the first auto gain control signal by using the detected reception power value of the whole band, and generating the second auto gain control signal to be provided to the band reception signal extraction units, resource allocation information for each band and a reception power for each reception band.
摘要翻译：多频带OFDM系统的接收机中的增益控制装置包括：基于第一自动增益控制信号放大接收信号的放大器; 用于将放大的信号转换成数字信号的模拟 - 数字转换器; 频带接收信号提取器，用于从每个接收频带的转换的数字信号中提取期望的接收频带的信号，并根据第二自动增益控制信号控制所提取的信号的增益; 接收功率检测器，用于从转换的数字信号中检测整个频带的接收功率值; 以及多频带集成基带处理器，用于通过使用检测到的整个频带的接收功率值来产生第一自动增益控制信号，并且生成要提供给频带接收信号提取单元的第二自动增益控制信号，每个频带和每个接收频带的接收功率。

24. 发明申请

US20120162794A1 LENS MODULE 审中-公开
标题翻译：镜头模块
公开(公告)号：US20120162794A1
公开(公告)日：2012-06-28
申请号：US13316949
申请日：2011-12-12
申请人： Kwang Chun LEE , Young Su Jin , Seong Jin Hong , Seok Cheon Lee
发明人： Kwang Chun LEE , Young Su Jin , Seong Jin Hong , Seok Cheon Lee
IPC分类号： G02B7/09
CPC分类号： G02B13/0085 , G02B7/08 , H01L41/0906
摘要： There is provided a lens module. The lens module according to the present invention may include a lens unit including one or more lenses, each having a lens function part and a flange part forming a circumference of the lens function part; and a piezoelectric body disposed on the flange part so as to shield unnecessary light incident through the lens unit and performing autofocusing according to an application of voltage thereto.
摘要翻译：提供了一个镜头模块。根据本发明的透镜模块可以包括透镜单元，其包括一个或多个透镜，每个透镜具有透镜功能部分和形成透镜功能部分的圆周的凸缘部分; 以及压电体，其设置在所述凸缘部上，以屏蔽通过所述透镜单元入射的不必要的光，并根据其施加电压进行自动聚焦。

25. 发明授权

US08165250B2 Automatic gain control device, signal receiving apparatus, and signal receiving method 有权
标题翻译：自动增益控制装置，信号接收装置和信号接收方法
公开(公告)号：US08165250B2
公开(公告)日：2012-04-24
申请号：US12329854
申请日：2008-12-08
申请人： Jae Ho Jung , Kwang Chun Lee
发明人： Jae Ho Jung , Kwang Chun Lee
IPC分类号： H04L27/08
CPC分类号： H04L27/2662
摘要： An apparatus and method of receiving signal are provided. The apparatus includes an amplifier that controls a gain according to a gain control signal and amplifies a received signal to generate an amplified signal, an analog-to-digital (A/D) converter that converts the amplified signal into a digital signal, a Fourier transform unit that performs Fourier transform of the digital signal to a frequency domain signal to generate a Fourier transform signal, a demodulator that demodulates the Fourier transform signal to generate a demodulated signal, and an automatic gain control unit that divides the Fourier transform signal into a noise period and a symbol period, calculates the signal level of the noise period based on the signal level of the symbol period, and generates the gain control signal according to the signal levels of the symbol period and the noise period.
摘要翻译：提供了一种接收信号的装置和方法。该装置包括放大器，其根据增益控制信号控制增益并放大接收信号以产生放大信号;模数（A / D）转换器，其将放大的信号转换为数字信号;傅立叶变换单元，其将数字信号的傅里叶变换转换为频域信号以产生傅立叶变换信号;解调器，其解调所述傅里叶变换信号以产生解调信号;以及自动增益控制单元，其将所述傅立叶变换信号分割为噪声周期和符号周期，基于符号周期的信号电平来计算噪声周期的信号电平，并根据符号周期和噪声周期的信号电平生成增益控制信号。

26. 发明授权

US07929639B2 Device for compensating radio frequency distortion in orthogonal frequency division multiplexing transmission system and method thereof 有权
标题翻译：用于补偿正交频分复用传输系统中射频失真的装置及其方法
公开(公告)号：US07929639B2
公开(公告)日：2011-04-19
申请号：US11527787
申请日：2006-09-27
申请人： Jae-Ho Jung , Byung-Su Kang , Joon-Hyung Kim , Heon-Kook Kwon , Sung-Jun Lee , Kwang-Chun Lee
发明人： Jae-Ho Jung , Byung-Su Kang , Joon-Hyung Kim , Heon-Kook Kwon , Sung-Jun Lee , Kwang-Chun Lee
IPC分类号： H04L25/49
CPC分类号： H04L27/2628 , H04L2027/003
摘要： The present invention relates to a device for compensating a radio frequency distortion caused by a sample/hold operation of a digital/analog converter in an orthogonal frequency division multiplexing (OFDM) transmission system, and a method thereof. In a digital transmission system, an edge frequency signal of a transmission signal band is distorted by a sample/hold operation of a digital/analog converter such that a signal attenuation is generated at a frequency domain by a sync function having a zero point at a sample frequency of a transmission signal. In the present invention, the signal distortion may be compensated by multiplying a coefficient of an inverse sync function by a signal weight value at the frequency domain, and it may be compensated by using a single multiplier and a lookup table storing the coefficient of the inverse sync function.
摘要翻译：本发明涉及一种用于补偿由正交频分复用（OFDM）传输系统中的数/模转换器的采样/保持操作引起的射频失真的装置及其方法。在数字传输系统中，传输信号频带的边缘频率信号被数/模转换器的采样/保持操作失真，使得在频域上通过具有零点的同步功能产生信号衰减发送信号的采样频率。在本发明中，可以通过将反相位函数的系数乘以频域的信号权重值来补偿信号失真，并且可以通过使用单个乘法器和存储反相的系数的查找表来补偿信号失真同步功能

27. 发明申请

US20110063026A1 PRE-DISTORTION APPARATUS OF POWER AMPLIFIER AND METHOD THEREOF 有权
标题翻译：功率放大器的预失真装置及其方法
公开(公告)号：US20110063026A1
公开(公告)日：2011-03-17
申请号：US12883580
申请日：2010-09-16
申请人： Jae-Ho JUNG , Gweon-Do Jo , Young-Hoon Kim , Jung-Hoon Oh , Kwang-Chun Lee
发明人： Jae-Ho JUNG , Gweon-Do Jo , Young-Hoon Kim , Jung-Hoon Oh , Kwang-Chun Lee
IPC分类号： H03F1/26
CPC分类号： H03F1/3247 , H03F1/0266 , H03F3/189 , H03F3/24 , H03F2201/3233
摘要： A pre-distortion apparatus of a power amplifier includes: a pre-distortion unit configured to generate a pre-distorted signal of an input signal by calculating a magnitude of the input signal and outputting a complex correction coefficient corresponding to the calculated magnitude of the input signal, and provide the generated pre-distorted signal as an input of the power amplifier; and a complex correct coefficient update unit configured to generate an error signal by comparing an output signal of the power amplifier with the input signal and updating the complex correction coefficient to minimize a magnitude of the generated error signal, wherein the pre-distortion unit provides a constant bias value corresponding to the magnitude of the input signal as a bias of the power amplifier while updating the complex correction coefficient.
摘要翻译：功率放大器的预失真装置包括：预失真单元，被配置为通过计算输入信号的幅度来产生输入信号的预失真信号，并输出与所计算的输入的幅度相对应的复数校正系数信号，并且将生成的预失真信号提供给功率放大器的输入; 以及复数正确系数更新单元，其被配置为通过将所述功率放大器的输出信号与所述输入信号进行比较来生成误差信号，并更新所述复数校正系数以最小化所生成的误差信号的幅度，其中所述预失真单元提供对应于作为功率放大器的偏置的输入信号的大小的恒定偏置值，同时更新复数校正系数。

28. 发明授权

US07817566B2 Wired MIMO link tester 有权
标题翻译：有线MIMO链路测试仪
公开(公告)号：US07817566B2
公开(公告)日：2010-10-19
申请号：US11951587
申请日：2007-12-06
申请人： Sung-Jun Lee , Jae-Ho Jung , Hyeong-Geun Park , Seong-Min Kim , Kwang-Chun Lee
发明人： Sung-Jun Lee , Jae-Ho Jung , Hyeong-Geun Park , Seong-Min Kim , Kwang-Chun Lee
IPC分类号： G01R31/08
CPC分类号： H04L43/50 , H04L41/145 , H04W24/08
摘要： Provided is a wired Multiple-Input Multiple-Output (MIMO) link tester. The wired link tester, includes: a simulating unit for constructing a wired link corresponding to a wireless link for a multiple-input multiple-output system and simulating wireless-link characteristics using each variable element located on the wired link; and a control means for prestoring a predetermined value of the variable element depending on the state change time and the number of the state changes and controlling the variable element according to the predetermined value of the variable element.
摘要翻译：提供了一种有线多输入多输出（MIMO）链路测试仪。有线链路测试器包括：模拟单元，用于构建对应于多输入多输出系统的无线链路的有线链路，并使用位于有线链路上的每个可变元件来模拟无线链路特性; 以及控制装置，用于根据状态改变时间和状态数量改变预定可变元件的预定值，并根据可变元件的预定值来控制可变元件。

29. 发明申请

US20100128775A1 APPARATUS AND METHOD FOR TRANSMITTING SIGNAL IN WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统信号发送装置及方法
公开(公告)号：US20100128775A1
公开(公告)日：2010-05-27
申请号：US12624934
申请日：2009-11-24
申请人： Joon-Hyung KIM , Jae-Ho JUNG , Gweon-Do JO , Kwang-Chun LEE
发明人： Joon-Hyung KIM , Jae-Ho JUNG , Gweon-Do JO , Kwang-Chun LEE
IPC分类号： H03K7/08 , H04B1/04
CPC分类号： H04B1/0483 , H03F1/0227 , H03F3/245 , H03F2200/411 , H03K7/08
摘要： Disclosed are an apparatus and method for transmitting a signal in a wireless communication system. The apparatus includes a controller for receiving power control information of a baseband signal, deciding an output mode, and providing an output mode signal, a signal converter for receiving the baseband signal outputting a phase signal, and outputting an envelope signal when the output mode signal indicates a first output mode, a phase modulator for up-converting the phase signal, and an amplifier for combining the envelop signal and the up-converted phase signal for the first output mode and amplifying the combined signal.
摘要翻译：公开了一种用于在无线通信系统中发送信号的装置和方法。该装置包括用于接收基带信号的功率控制信息，确定输出模式和提供输出模式信号的控制器，用于接收输出相位信号的基带信号的信号转换器，以及当输出模式信号表示第一输出模式，用于对相位信号进行上变频的相位调制器，以及用于组合用于第一输出模式的包络信号和上变频相位信号的放大器，并放大组合信号。

30. 发明授权

US07612618B2 PLL apparatus for OFDM system having variable channel bands and operating method thereof 有权
标题翻译：具有可变信道频带的OFDM系统的PLL装置及其操作方法
公开(公告)号：US07612618B2
公开(公告)日：2009-11-03
申请号：US11925073
申请日：2007-10-26
申请人： Yun-Soo Ko , Seong-Min Kim , Kwang-Chun Lee
发明人： Yun-Soo Ko , Seong-Min Kim , Kwang-Chun Lee
IPC分类号： H03L7/00
CPC分类号： H03L7/107 , H03L7/18
摘要： Provided are a PLL apparatus for an OFDM system having variable channel band and an operating method thereof. The PLL apparatus includes a frequency divider for dividing an oscillating signal; a phase detector for detecting a phase difference between a reference signal and the divided oscillating signal from the frequency divider and outputting the phase difference signal; a variable loop filter for filtering a phase difference signal outputted from the phase detector; a voltage control oscillator for outputting the oscillator signal to the frequency divider according to the voltage control signal filtered from the variable loop filter; and a variable loop filter controller for varying a filtering band of the variable loop filter according to each of the channel bands.
摘要翻译：提供一种用于具有可变信道频带的OFDM系统的PLL装置及其操作方法。 PLL装置包括用于分频振荡信号的分频器; 相位检测器，用于检测来自分频器的参考信号和分频振荡信号之间的相位差，并输出相位差信号; 用于对从相位检测器输出的相位差信号进行滤波的可变环路滤波器; 电压控制振荡器，用于根据从可变环路滤波器滤波的电压控制信号将振荡器信号输出到分频器; 以及可变环路滤波器控制器，用于根据每个信道频带改变可变环路滤波器的滤波频带。

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