-
公开(公告)号：US09807775B2
公开(公告)日：2017-10-31
申请号：US14612727
申请日：2015-02-03
Inventor： Heon Kook Kwon , Byung Su Kang , Kwangchun Lee
CPC classification number: H04W72/082 , H04L5/14 , H04W72/0453
Abstract: A terminal for performing device-to-device (D2D) communication, according to an embodiment of the present invention, includes an antenna configured to transmit/receive an uplink channel signal and a downlink channel signal, a duplexer configured to separate a transmission/reception signal of the antenna into the uplink channel signal and the downlink channel signal, a switch configured to switch the uplink channel signal in a time division duplex (TDD) scheme so as to separate the uplink channel signal into an uplink transmission block and a first reception block, and a second reception block configured to convert the downlink channel signal provided from the duplexer into a baseband.
-
公开(公告)号：US09525205B2
公开(公告)日：2016-12-20
申请号：US14085208
申请日：2013-11-20
Inventor： Jung Hoon Oh , Kwangchun Lee , Nam Hoon Park
Abstract: Provided is a beam forming device. The beam forming device of the present invention may feedback power-amplified signals to perform digital pre-distortion for improving the non-linearity of an analog element in a digital signal process terminal and control a phase for forming a beam. Therefore, the beam forming device that can form an accurate beam may be realized.
Abstract translation: 提供了一种波束形成装置。 本发明的波束形成装置可以反馈功率放大信号以执行数字预失真，以改善数字信号处理终端中的模拟元件的非线性，并且控制用于形成波束的相位。 因此，可以实现能够形成精确的光束的光束形成装置。
-
3.发明授权Second order loop filter and multi-order delta sigma modulator including the same 有权二阶环路滤波器和包括其的多阶三角Σ调制器公开(公告)号：US09356618B2
公开(公告)日：2016-05-31
申请号：US14617705
申请日：2015-02-09
Inventor： Young Kyun Cho , Jae Ho Jung , Kwangchun Lee
CPC classification number: H03M3/43 , H03H11/1247 , H03H11/126 , H03H11/1291 , H03H11/32 , H03M3/38 , H03M3/422 , H03M3/454 , H03M3/458
Abstract: Provided is a second order loop filter (LF). The second order LF includes: an operational amplifier including a first input, a second input receiving a differential input of the first input, and an output; an inverter inverting a signal output from the output of the operational amplifier to output an inverted signal; a first resistor connected to between the first input and a first node; a second resistor connected to between the output of the operational amplifier and the first node; a third resistor connected to between the first input and an input signal; a first capacitor connected to between the second input and the first node; a second capacitor connected to between the output of the operational amplifier and an output of the inverter; and a third capacitor connected to between the output and the first input of the operational amplifier, wherein the second input is connected to a ground voltage.
Abstract translation: 提供了二阶环路滤波器（LF）。 第二级LF包括：运算放大器，包括第一输入端，接收第一输入端的差分输入端的第二输入端和输出端; 逆变器，反相从运算放大器的输出端输出的信号，输出反相信号; 连接到第一输入和第一节点之间的第一电阻器; 连接到运算放大器的输出端和第一节点之间的第二电阻器; 连接到所述第一输入端和输入信号之间的第三电阻器; 连接到所述第二输入端和所述第一节点之间的第一电容器; 连接在运算放大器的输出端和反相器的输出端之间的第二电容器; 以及连接到所述运算放大器的输出和第一输入之间的第三电容器，其中所述第二输入端连接到接地电压。
-
公开(公告)号：US09799962B2
公开(公告)日：2017-10-24
申请号：US14518714
申请日：2014-10-20
Inventor： Jung Nam Lee , Kwangchun Lee , Gweon Do Jo , Heon Kook Kwon , Byung Su Kang , Jung Hoon Oh
Abstract: Provided is a dual-polarized dipole antenna. The dual-polarized dipole antenna includes a substrate etched as first and second microstrip lines and provided in a cube, first to fourth feeding lines etched as third microstrip lines and disposed in a square type in a vertical direction to the substrate, and first to fourth radiation patches disposed in a square type in the vertical direction to the first to fourth feeding unit, wherein the first to fourth feeding units are respectively disposed on adjacent pairs of the first to fourth radiation patches. According to the present invention, a miniature dual-polarized dipole antenna having a wide bandwidth, high isolation characteristics, and a high gain can be provided.
-
5.发明授权公开(公告)号：US09106128B2
公开(公告)日：2015-08-11
申请号：US14311417
申请日：2014-06-23
Inventor： Hui Dong Lee , Jae Ho Jung , Kwangchun Lee
CPC classification number: H02M3/07 , H03L7/0895 , H03L7/0896 , H03L7/0898
Abstract: Provided is a charge pump circuit having a current mirror structure, including a first voltage controller including a plurality of first resistors and a plurality of first switches, and in response to a switching control signal corresponding to a bias current, driving the plurality of first switches to allow a current path passing through the plurality of first resistors to bypass, thereby controlling a voltage level of an output end, a second voltage controller including a plurality of second resistors and a plurality of second switches, and in response to the switching control signal, driving the plurality of second switches to allow a current path passing through the plurality of second resistors to bypass, thereby controlling a voltage level of an output end to correspond to the voltage of the output end of the first voltage controller.
Abstract translation: 提供了具有电流镜结构的电荷泵电路，包括包括多个第一电阻器和多个第一开关的第一电压控制器，并且响应于与偏置电流相对应的开关控制信号，驱动多个第一开关 允许通过多个第一电阻器的电流路径旁路，从而控制输出端的电压电平，包括多个第二电阻器和多个第二开关的第二电压控制器，并且响应于开关控制信号 驱动所述多个第二开关以允许通过所述多个第二电阻器的电流路径旁路，由此控制输出端的电压电平对应于所述第一电压控制器的输出端的电压。
-
Patent Agency Ranking
公开(公告)号：US11038265B2
公开(公告)日：2021-06-15
申请号：US16578203
申请日：2019-09-20
Inventor： Young Kyun Cho , Cheol Ho Kim , Bong Hyuk Park , Kwangchun Lee , Seok Bong Hyun
Abstract: A semiconductor-based beamforming antenna is provided. The beamforming antenna includes: a waveguide having a silicon medium formed between metal and forming a waveguide path; at least one diode array disposed in the waveguide, the at least one diode array being driven according to an applied electrical signal to reflect an incident signal by acting as a conductive reflecting wall; a radiator connected to the waveguide and radiating a beam corresponding to a signal reflected by the at least one diode array or an incident signal; and a feeder for supplying an electrical signal into the waveguide.
-
公开(公告)号：US10461725B2
公开(公告)日：2019-10-29
申请号：US15622513
申请日：2017-06-14
Inventor： Young Kyun Cho , Cheol Ho Kim , Bong Hyuk Park , Kwangchun Lee , Jae Ho Jung , Seok Bong Hyun
Abstract: A voltage comparator comparing a voltage of a first input signal and a voltage of a second input signal is provided. The voltage comparator includes: a first switch pair transmitting, respectively, the first input signal and the second input signal to a control terminal of a first transistor and a control terminal of a second transistor in response to a clock signal; a second switch pair connecting a first terminal and a second terminal of the first transistor and connecting a first terminal and a second terminal of the second transistor in response to at least one of the clock signal and a reset signal; and a first reset switch connecting the control terminal of the first transistor and the control terminal of the second transistor in response to the reset signal.
-
8.发明授权公开(公告)号：US09397870B2
公开(公告)日：2016-07-19
申请号：US14636728
申请日：2015-03-03
Inventor： Heon Kook Kwon , Myung Don Kim , Kwangchun Lee , Young Jun Chong
CPC classification number: H04L25/061 , H04J11/004 , H04J11/0066 , H04L1/206 , H04L25/0212 , H04L27/22 , H04L27/3863
Abstract: A signal receiving device for measuring a characteristic of a wireless communication channel is provided. The signal receiving device includes an analog signal processor, an analog-digital converter, and a digital signal processor. The analog signal processor generates a band-limited signal by decreasing an intensity of a signal having an image frequency in a correlation operation result signal being a result of correlation operation, and generates an intermediate frequency signal by transforming the band-limited signal. The analog-digital converter converts the intermediate frequency signal into a digital signal. The digital signal processor generates a demodulated signal by performing in-phase/quadrature-phase modulation on the digital signal, the demodulated signal including a baseband signal, which includes a direct current component, and signals repeated at constant frequency intervals with a same bandwidth as the baseband signal, and generates an impulse response signal by decreasing intensities of the repeated signals in the demodulated signal.
Abstract translation: 提供了一种用于测量无线通信信道的特性的信号接收装置。 信号接收装置包括模拟信号处理器，模拟数字转换器和数字信号处理器。 模拟信号处理器通过减小作为相关运算结果的相关运算结果信号中具有图像频率的信号的强度来产生频带限制信号，并且通过变换频带限制信号来产生中频信号。 模数转换器将中频信号转换为数字信号。 数字信号处理器通过对数字信号执行同相/正交相位调制来产生解调信号，该解调信号包括包括直流分量的基带信号和以恒定频率间隔以与 基带信号，并且通过降低解调信号中的重复信号的强度来产生脉冲响应信号。
-
公开(公告)号：US09479120B2
公开(公告)日：2016-10-25
申请号：US14612801
申请日：2015-02-03
Inventor： Young Kyun Cho , Jae Ho Jung , Kwangchun Lee
CPC classification number: H03F1/083 , H03F3/45475 , H03F3/45941 , H03F2200/129 , H03F2200/153 , H03F2203/45114 , H03F2203/45424 , H03F2203/45521
Abstract: Provided is a fully differential signal system including a first amplification unit including first and second output terminals configured to output an output differential signal generated based on an input differential signal and a common mode feedback signal; a common mode detection unit configured to detect a common mode signal included in the output differential signal; a second amplification unit including a feedback signal output terminal configured to output the common mode feedback signal generated based on the detected common mode signal and a reference signal; a first stabilization unit connected between the first output terminal and the feedback signal output terminal; and a second stabilization unit connected between the second output terminal and the feedback signal output terminal. The fully differential signal system stably operates and an operation performance of the fully differential signal system is improved.
Abstract translation: 提供了一种全差分信号系统，包括：第一放大单元，包括第一和第二输出端子，第一和第二输出端子被配置为输出基于输入差分信号和共模反馈信号产生的输出差分信号; 共模检测单元，被配置为检测包括在所述输出差分信号中的共模信号; 第二放大单元，包括反馈信号输出端子，其被配置为输出基于检测到的共模信号产生的共模反馈信号和参考信号; 连接在第一输出端子和反馈信号输出端子之间的第一稳定单元; 以及连接在第二输出端子和反馈信号输出端子之间的第二稳定单元。 全差分信号系统稳定运行，提高了全差分信号系统的运行性能。
-
10.发明授权公开(公告)号：US09300513B2
公开(公告)日：2016-03-29
申请号：US14595653
申请日：2015-01-13
Inventor： Seunghyun Jang , Young Kyun Cho , Sung Jun Lee , Bong Hyuk Park , Jae Ho Jung , Kwangchun Lee
CPC classification number: H04L27/2627 , H03F1/3247 , H03F3/24 , H04L25/4902 , H04L25/4923 , H04L27/20 , H04L27/368
Abstract: Provided is a signal transmission device including a first modulation unit generating a first modulated signal having at least three logic levels by modulating an input signal; a characteristic adjustment unit generating an adjusted first modulated signal by adjusting the at least one of electrical characteristic values based on an adjustment signal; a second modulation unit generating a second modulated signal by modulating the adjusted first modulated signal; and an adjustment operation unit generating the adjustment signal based on electrical characteristic values respectively corresponding to the at least three logic levels of the first modulated signal and corresponding to at least three logic levels of the second modulated signal. Linearity of the modulated signal generated by the provided signal transmission device is enhanced.
Abstract translation: 提供了一种信号传输设备，包括：第一调制单元，通过调制输入信号产生具有至少三个逻辑电平的第一调制信号; 特征调整单元，通过基于调整信号调整所述电特性值中的至少一个来生成经调整的第一调制信号; 第二调制单元，通过调制经调整的第一调制信号产生第二调制信号; 以及调整操作单元，其基于分别对应于所述第一调制信号的所述至少三个逻辑电平并对应于所述第二调制信号的至少三个逻辑电平的电特性值生成所述调整信号。 由提供的信号传输装置产生的调制信号的线性增强。
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.015 seconds)
