公开(公告)号：US20130251055A1

公开(公告)日：2013-09-26

申请号：US13587296

申请日：2012-08-16

申请人： Chang Wahn YU ,  Gweon Do JO ,  Jung Hoon OH ,  Kwang Chun LEE ,  Jae Ho JUNG

发明人： Chang Wahn YU ,  Gweon Do JO ,  Jung Hoon OH ,  Kwang Chun LEE ,  Jae Ho JUNG

IPC分类号： H04L27/28

CPC分类号： H04L5/0007 ,  H04L27/2614 ,  H04L27/2627

摘要： Disclosed are a signal distortion component adjusting apparatus and method capable of adjusting error vector magnitude of subcarriers of a predetermined position by adjusting a signal distortion component occurring while decreasing a peak to average power ratio (PAPR) in a communication system of an orthogonal frequency division multiplexing (OFDM) technology or an orthogonal frequency division multiple access (OFDMA) scheme, and a system using the same. The present invention includes a signal distortion component adjusting unit to add an additional signal distortion component Pe((n+N/2) % N) to a signal distortion component e(n) that is obtained by subtracting a threshold Th value, set to decrease peak power, from an absolute value of a time domain signal x(n) of an input signal, and to thereby adjust the signal distortion component. The present invention may transmit a highly reliable signal by adjusting error vector magnitude of subcarrier of a frequency domain.

摘要翻译： 公开了一种信号失真分量调整装置和方法，其能够通过调整在正交频分复用的通信系统中降低峰均功率比（PAPR）的同时发生的信号失真分量来调整预定位置的子载波的误差矢量幅度 （OFDM）技术或正交频分多址（OFDMA）方案，以及使用它们的系统。 本发明包括一个信号失真分量调整单元，用于将附加信号失真分量Pe（（n + N / 2）％N）加到通过将阈值Th值减去得到的信号失真分量e（n） 从输入信号的时域信号x（n）的绝对值减小峰值功率，从而调整信号失真分量。 本发明可以通过调整频域的子载波的误差矢量幅度来发送高度可靠的信号。

公开(公告)号：US20130163690A1

公开(公告)日：2013-06-27

申请号：US13545691

申请日：2012-07-10

申请人： Gweon Do JO ,  Chang Wahn YU ,  Heon Kook KWON ,  Byung Su KANG ,  Kwang Chun LEE

发明人： Gweon Do JO ,  Chang Wahn YU ,  Heon Kook KWON ,  Byung Su KANG ,  Kwang Chun LEE

IPC分类号： H04L27/12 ,  H04B1/66

CPC分类号： H03M7/6023 ,  H04L27/26

摘要： The method for transmitting a signal of an orthogonal frequency division multiplexing type according to an exemplary embodiment of the present invention has a configuration allowing a radio unit (RU) to perform a component adding a compression component and a decompression component before/after a serial interface interlocking between a digital unit (DU) and the radio unit (RU) and a component inserting a cyclic prefix (CP) into a signal so as to secure orthogonality of an orthogonal frequency division multiplexing (OFDM) signal, in a structure in which a base station is physically divided into the DU and the RU.

摘要翻译： 根据本发明的示例性实施例的用于发送正交频分复用类型的信号的方法具有允许无线电单元（RU）在串行接口之前/之后执行添加压缩分量和解压缩分量的分量的配置 在数字单元（DU）和无线电单元（RU）之间互锁，以及将一个循环前缀（CP）插入到信号中以便确保正交频分复用（OFDM）信号的正交性的组件，其中 基站在物理上分为DU和RU。

公开(公告)号：US20120154040A1

公开(公告)日：2012-06-21

申请号：US13330986

申请日：2011-12-20

申请人： Young Hoon KIM ,  Gweon Do JO ,  Kwang Chun LEE

发明人： Young Hoon KIM ,  Gweon Do JO ,  Kwang Chun LEE

IPC分类号： H03F1/26

CPC分类号： H03F1/3247 ,  H03F1/3258 ,  H03F3/189 ,  H03F3/24 ,  H03F2201/3212

摘要： The predistorter may include: a predistortion filter predistorting an input signal to provide an output signal; a predistortion output estimation unit estimating the characteristics of a nonlinear device based on a signal processed by the nonlinear device and the output signal, and calculating a desired output signal of the predistortion filter by using the estimated characteristics of the nonlinear device; and an adaptive algorithm driving unit comparing the output signal with the desired output signal to output an error as a comparison result, calculating a filter coefficient according to which the calculated error is minimized, and providing the calculated filter coefficient to the predistortion filter in order to update a filter coefficient of the predistortion filter.

摘要翻译： 预失真器可以包括：预失真滤波器预失真输入信号以提供输出信号; 预失真输出估计单元，基于由所述非线性装置处理的信号和所述输出信号来估计所述非线性装置的特性，以及通过使用所述非线性装置的估计特性来计算所述预失真滤波器的期望输出信号; 以及自适应算法驱动单元，将输出信号与期望的输出信号进行比较以输出误差作为比较结果，计算滤波器系数，根据该滤波器系数计算误差最小化，并将计算的滤波器系数提供给预失真滤波器，以便 更新预失真滤波器的滤波器系数。

公开(公告)号：US20090154617A1

公开(公告)日：2009-06-18

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： A signal receiving apparatus according to an embodiment of the present invention 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. Accordingly, when a non-cyclic burst signal is received, the non-cyclic burst signal is divided into a signal presence period and a signal absence period, and the gain is only controlled by using the signal presence period. Therefore, accuracy of the signal level can be secured, and the signal level of the symbol can be calculated in the frequency domain, thereby reducing complexity.

摘要翻译： 根据本发明实施例的信号接收装置包括：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; 一个将放大的信号转换成数字信号的模拟（A / D）转换器; 傅立叶变换单元，其将数字信号的傅立叶变换执行到频域信号以产生傅里叶变换信号; 解调器，解调所述傅里叶变换信号以产生解调信号; 以及将傅立叶变换信号分割为噪声周期和符号周期的自动增益控制部，基于符号周期的信号电平来计算噪声周期的信号电平，并根据信号电平生成增益控制信号 的符号周期和噪声周期。 因此，当接收到非循环脉冲串信号时，非循环脉冲串信号被分成信号存在周期和信号不存在时段，并且仅通过使用信号存在周期来控制增益。 因此，可以确保信号电平的精度，并且可以在频域中计算符号的信号电平，从而降低复杂度。

公开(公告)号：US20110059707A1

公开(公告)日：2011-03-10

申请号：US12875670

申请日：2010-09-03

申请人： Joon Hyung KIM ,  Kwang Chun LEE

发明人： Joon Hyung KIM ,  Kwang Chun LEE

IPC分类号： H01Q11/12

CPC分类号： H03F1/0244 ,  H03C5/00 ,  H03F3/24 ,  H03F2200/78 ,  H03G3/3047 ,  H04L27/361

摘要： In a wideband mobile communication system, a signal transmitting apparatus separates an envelope curve signal which is size information and a phase signal which is phase information from a signal to transmit, and compares the envelope curve signal with a predetermined voltage. The signal transmitting apparatus performs active bias control that amplifies and outputs an envelope curve signal according to different driving voltages based on a comparison result, and supplies a bias voltage to a power amplifier that amplifies a phase signal based on the amplified signal.

摘要翻译： 在宽带移动通信系统中，信号发送装置将作为大小信息的包络线信号和作为发送信号的相位信息的相位信号进行分离，并将包络线信号与预定电压进行比较。 信号发送装置执行主动偏置控制，其根据比较结果根据不同的驱动电压放大并输出包络线信号，并且将偏置电压提供给放大基于放大信号的相位信号的功率放大器。

公开(公告)号：US20090140813A1

公开(公告)日：2009-06-04

申请号：US12234115

申请日：2008-09-19

申请人： Byung Su KANG ,  Heon Kook KWON ,  Kwang Chun LEE

发明人： Byung Su KANG ,  Heon Kook KWON ,  Kwang Chun LEE

IPC分类号： H03G3/20

CPC分类号： H03G3/3068

摘要： A radio signal receiving apparatus receiving a radio signal over a radio channel generates a first amplified signal by amplifying the radio signal with a first gain, and determines the first gain by measuring the strength of the first amplified signal. In addition, the radio signal receiving apparatus generates a down-converted signal by frequency down-converting the first amplified signal, and generates a second amplified signal by amplifying the down-converted signal with a second gain. In addition, the radio signal receiving apparatus determines the second gain by measuring the strength of the second amplified signal.

摘要翻译： 通过无线电信道接收无线电信号的无线电信号接收装置通过以第一增益放大无线电信号来产生第一放大信号，并且通过测量第一放大信号的强度来确定第一增益。 此外，无线电信号接收装置通过对第一放大信号进行降频转换而产生下变频信号，并通过用第二增益放大下变频信号来产生第二放大信号。 此外，无线电信号接收装置通过测量第二放大信号的强度来确定第二增益。

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。

公开(公告)号：US20090117867A1

公开(公告)日：2009-05-07

申请号：US12165989

申请日：2008-07-01

申请人： Yun Soo KO ,  Heon Kook KWON ,  Joon Hyung KIM ,  Seong-Min KIM ,  Kwang Chun LEE

发明人： Yun Soo KO ,  Heon Kook KWON ,  Joon Hyung KIM ,  Seong-Min KIM ,  Kwang Chun LEE

IPC分类号： H04B1/18

CPC分类号： H03H7/0161 ,  H03H2210/012 ,  H03H2210/015 ,  H03H2210/025 ,  H03H2210/036

摘要： The present invention relates to a scalable bandwidth system and a method of controlling a tunable filter. In the present invention, the scalable bandwidth system inputs, as a control signal of a tunable filter, a voltage corresponding to a section in which the capacitance according to an applied voltage is not practically changed for characteristics of varactor diodes, and inputs each control bit of the control signal to each varactor diode of the tunable filter to adjust the capacitance of each of the varactor diodes, and consequently adjusts the capacitance of the tunable filter by adding the capacitance of the varactor diodes.

摘要翻译： 本发明涉及一种可扩展带宽系统和一种控制可调滤波器的方法。 在本发明中，可扩展带宽系统作为可调谐滤波器的控制信号输入对应于根据施加电压的电容对于变容二极管的特性实际上不改变的部分的电压，并输入每个控制位 控制信号到可调谐滤波器的每个变容二极管，以调整每个变容二极管的电容，从而通过增加变容二极管的电容来调节可调谐滤波器的电容。

公开(公告)号：US20130063824A1

公开(公告)日：2013-03-14

申请号：US13606594

申请日：2012-09-07

申请人： Kwang Chun LEE ,  Seok Cheon LEE

发明人： Kwang Chun LEE ,  Seok Cheon LEE

IPC分类号： G02B3/00 ,  G02B1/10 ,  B05D5/06

CPC分类号： G02B3/0075 ,  B29D11/00317 ,  G02B5/005 ,  G09F3/00

摘要： There is provided a lens module including: a first lens member including an optical part and a bonding part; and an identification mark printed on the first lens member. Further, there is provided a lens module manufacturing method, the manufacturing method including: preparing a first lens member including an optical part and a bonding part; and printing and forming a light shielding film and an identification mark on the bonding part.

摘要翻译： 提供一种透镜模块，包括：第一透镜构件，其包括光学部件和接合部件; 以及打印在第一透镜构件上的识别标记。 此外，提供一种透镜模块的制造方法，其制造方法包括：准备包括光学部件和接合部件的第一透镜部件; 在接合部上印刷形成遮光膜和识别标记。

公开(公告)号：US20130026668A1

公开(公告)日：2013-01-31

申请号：US13525826

申请日：2012-06-18

申请人： Kwang Chun LEE ,  Young Su Jin ,  Sang Hyo Seo

发明人： Kwang Chun LEE ,  Young Su Jin ,  Sang Hyo Seo

IPC分类号： B29C33/30 ,  B29D11/00

CPC分类号： B29D11/00951 ,  B29C33/303 ,  B29D11/005

摘要： There is provided a lens molding apparatus, the apparatus including: a first mold part and a second mold part molding a lens array; first alignment marks respectively formed on the first mold part and the second mold part; second alignment marks respectively formed on the first mold part and the second mold part and positioned outside of the first alignment marks; and a controller sensing an alignment error of the first alignment marks based on the second alignment marks and correcting a relative position of the second mold part with respect to the first mold part in proportion to the magnitude of the sensed alignment error.

摘要翻译： 提供了一种透镜成型装置，该装置包括：模制透镜阵列的第一模具部件和第二模具部件; 分别形成在第一模具部件和第二模具部件上的第一对准标记; 分别形成在第一模具部件和第二模具部件上并位于第一对准标记外侧的第二对准标记; 以及控制器，其基于所述第二对准标记感测所述第一对准标记的对准误差，并且与所述检测到的对准误差的大小成比例地校正所述第二模具部件相对于所述第一模具部件的相对位置。