公开(公告)号：US08588838B2

公开(公告)日：2013-11-19

申请号：US12178323

申请日：2008-07-23

Applicant: Seong-Min Kim ,  Heon-Kook Kwon ,  Joon-Hyung Kim ,  Kwang-Chun Lee

Inventor： Seong-Min Kim ,  Heon-Kook Kwon ,  Joon-Hyung Kim ,  Kwang-Chun Lee

IPC: H04B7/00

CPC classification number: H04W52/247 ,  H04W52/146 ,  H04W52/282

Abstract: Provided is an apparatus and method for controlling power in a mobile communication system. The apparatus includes a moving speed measuring unit for measuring a moving speed of the terminal, a Channel Quality Indicator (CQI) processing unit for requesting a base station to adjust a CQI report frequency when the moving speed measured by the moving speed measuring unit exceeds a threshold value, and determining a CQI report frequency based on information on the CQI report frequency received from the base station to report CQI, and a power controller for performing a power control in response to a power control signal created by the CQI reported from the base station.

Abstract translation: 提供了一种用于在移动通信系统中控制电力的装置和方法。 该装置包括：移动速度测量单元，用于测量终端的移动速度;信道质量指示符（CQI）处理单元，用于当移动速度测量单元测量的移动速度超过一个时，请求基站调整CQI报告频率 阈值，并且基于从基站接收的CQI报告频率的信息来确定CQI报告频率以报告CQI;以及功率控制器，用于响应于从基站报告的CQI创建的功率控制信号来执行功率控制 站。

公开(公告)号：US20130163690A1

公开(公告)日：2013-06-27

申请号：US13545691

申请日：2012-07-10

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

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

IPC: H04L27/12 ,  H04B1/66

CPC classification number: H03M7/6023 ,  H04L27/26

Abstract: 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.

Abstract translation: 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：US08369033B2

公开(公告)日：2013-02-05

申请号：US13064661

申请日：2011-04-06

Applicant: Hye Ran Oh ,  Kwang Chun Lee ,  In Cheol Chang ,  Young Su Jin

Inventor： Hye Ran Oh ,  Kwang Chun Lee ,  In Cheol Chang ,  Young Su Jin

IPC: G02B9/00 ,  G02B3/08 ,  B29D11/00

CPC classification number: B29D11/0073

Abstract: There is provided a method of manufacturing a lens, including applying a second lens material to a first lens member made of a first lens material; aligning and fixing a light shielding member to the second lens material; and further applying the second lens material to the first lens member and performing curing thereon to complete a second lens member.

Abstract translation: 提供一种制造透镜的方法，包括将第二透镜材料施加到由第一透镜材料制成的第一透镜构件; 将遮光构件对准并固定到第二透镜材料上; 并且还将第二透镜材料施加到第一透镜构件并在其上进行固化以完成第二透镜构件。

公开(公告)号：US20120182836A1

公开(公告)日：2012-07-19

申请号：US13496870

申请日：2010-09-17

Applicant: Byung-Jae Kwak ,  Kwang Chun Lee ,  Hyun Kyu Chung ,  Nah-Oak Song

Inventor： Byung-Jae Kwak ,  Kwang Chun Lee ,  Hyun Kyu Chung ,  Nah-Oak Song

IPC: G01S3/80 ,  H04B11/00

CPC classification number: H04B11/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20120177819A1

公开(公告)日：2012-07-12

申请号：US13064618

申请日：2011-04-04

Applicant: Kwang Chun Lee ,  Young Su Jin ,  Hye Ran Oh

Inventor： Kwang Chun Lee ,  Young Su Jin ,  Hye Ran Oh

IPC: B05D5/06

CPC classification number: B29D11/0073 ,  B29D11/00298 ,  B29D11/00442

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08213891B2

公开(公告)日：2012-07-03

申请号：US12507474

申请日：2009-07-22

Applicant: Seong-Min Kim ,  Byung-Su Kang ,  Gweon-Do Jo ,  Jae-Ho Jung ,  Joon-Hyung Kim ,  Heon-Kook Kwon ,  Sung-Jun Lee ,  Kwang-Chun Lee

Inventor： 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: H04B1/06 ,  H04B7/00

CPC classification number: H04L27/2647 ,  H03G3/3068

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20120162794A1

公开(公告)日：2012-06-28

申请号：US13316949

申请日：2011-12-12

Applicant: Kwang Chun LEE ,  Young Su Jin ,  Seong Jin Hong ,  Seok Cheon Lee

Inventor： Kwang Chun LEE ,  Young Su Jin ,  Seong Jin Hong ,  Seok Cheon Lee

IPC: G02B7/09

CPC classification number: G02B13/0085 ,  G02B7/08 ,  H01L41/0906

Abstract: 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.

Abstract translation: 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：US08165250B2

公开(公告)日：2012-04-24

申请号：US12329854

申请日：2008-12-08

Applicant: Jae Ho Jung ,  Kwang Chun Lee

Inventor： Jae Ho Jung ,  Kwang Chun Lee

IPC: H04L27/08

CPC classification number: H04L27/2662

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07929639B2

公开(公告)日：2011-04-19

申请号：US11527787

申请日：2006-09-27

Applicant: Jae-Ho Jung ,  Byung-Su Kang ,  Joon-Hyung Kim ,  Heon-Kook Kwon ,  Sung-Jun Lee ,  Kwang-Chun Lee

Inventor： Jae-Ho Jung ,  Byung-Su Kang ,  Joon-Hyung Kim ,  Heon-Kook Kwon ,  Sung-Jun Lee ,  Kwang-Chun Lee

IPC: H04L25/49

CPC classification number: H04L27/2628 ,  H04L2027/003

Abstract: 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.

Abstract translation: 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

公开(公告)号：US20110063026A1

公开(公告)日：2011-03-17

申请号：US12883580

申请日：2010-09-16

Applicant: Jae-Ho JUNG ,  Gweon-Do Jo ,  Young-Hoon Kim ,  Jung-Hoon Oh ,  Kwang-Chun Lee

Inventor： Jae-Ho JUNG ,  Gweon-Do Jo ,  Young-Hoon Kim ,  Jung-Hoon Oh ,  Kwang-Chun Lee

IPC: H03F1/26

CPC classification number: H03F1/3247 ,  H03F1/0266 ,  H03F3/189 ,  H03F3/24 ,  H03F2201/3233

Abstract: 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.

Abstract translation: 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。