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公开(公告)号：US20200266775A1
公开(公告)日：2020-08-20
申请号：US16788177
申请日：2020-02-11
Inventor： Sun Woo KONG , Kwang Seon KIM , Jee Hoon PARK , Kwang Chun LEE , Hui Dong LEE , Seung Hyun JANG
Abstract: An amplifier may comprise first and second matching networks; first and second transistors; and a transformer including first to third inductors. Also, a gate and a source of the first transistor are connected to the first matching network, one end of the first inductor is connected to a drain of the first transistor, the other end of the first inductor is connected to a source of the second transistor, one end of the second inductor is connected to a gate of the second transistor, the other end of the second inductor is grounded, one end of the third inductor is connected to a drain of the second transistor, and the other end of the third inductor is connected to the second matching network.
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公开(公告)号：US20140118045A1
公开(公告)日：2014-05-01
申请号：US14067487
申请日：2013-10-30
Inventor： Hui Dong LEE , Jae Ho JUNG , Kwang Chun LEE
IPC: H03K3/017
CPC classification number: H03K3/017 , H03K5/1565
Abstract: Disclosed is an apparatus for controlling a duty ratio of a signal that includes a clock control unit configured to generate a plurality of control signals based on an input signal, a half-cycle generation unit configured to generate a multiplied signal by use of the input signal and a delay signal that is obtained by delaying the input signal based on a delay control voltage, and divide the multiplied signal to generate a first division signal and a second division signal that are in inverse relation to each other, a comparator unit configured to compare a pulse width of the first division signal with a pulse width of the second division signal based on the control signal provided by the clock control unit, and output a delay control signal corresponding to a result of the comparison, and a control voltage generation unit configured to output a delay control voltage.
Abstract translation: 公开了一种用于控制信号的占空比的装置，其包括被配置为基于输入信号生成多个控制信号的时钟控制单元，半周生成单元，被配置为通过使用输入信号生成相乘的信号 以及延迟信号，其通过基于延迟控制电压延迟所述输入信号而获得，并且将所述相乘的信号除以产生彼此成反比的第一除法信号和第二除法信号，所述比较器单元被配置为比较 基于由时钟控制单元提供的控制信号的具有第二分频信号的脉冲宽度的第一分频信号的脉冲宽度，并输出与比较结果相对应的延迟控制信号，以及控制电压生成单元配置 输出延迟控制电压。
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公开(公告)号：US20240213685A1
公开(公告)日：2024-06-27
申请号：US18473854
申请日：2023-09-25
Inventor： Bong Hyuk PARK , Sunwoo KONG , SEUNG HUN WANG , Hui Dong LEE , Seunghyun JANG , Seok Bong HYUN
CPC classification number: H01Q13/08 , H01Q1/2283
Abstract: An antenna system and an apparatus including the same are provided. The antenna system includes at least one antenna module, wherein the antenna module may include a plurality of antennas formed on one surface of a first board, and a beamforming chip formed on one surface of a second board, wherein the plurality of antennas is connected to the beamforming chip through a plurality of microstrip lines and a waveguide.
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公开(公告)号：US20170272290A1
公开(公告)日：2017-09-21
申请号：US15460537
申请日：2017-03-16
Inventor： Seung Hyun JANG , Bong Hyuk PARK , Hui Dong LEE
CPC classification number: H04L27/2003 , H03F1/0222 , H03F3/19 , H03F3/245 , H03F3/45475 , H03F2200/102 , H03F2200/451 , H03F2203/45526 , H04B1/04 , H04B1/0483 , H04B2001/0408 , H04L27/122
Abstract: An envelope signal time delay adjustment apparatus includes a negative group delay unit for converting an envelope signal input from a signal generator into an envelope signal having a group delay of a negative value whose frequency increases from a predetermined frequency band; an envelope-tracking modulator for power-amplifying and outputting the envelope signal output from the negative group delay unit; and a frequency limiting unit for limiting a bandwidth of the envelope-tracking modulator to be lower than an original bandwidth of the envelope-tracking modulator.
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公开(公告)号：US20160112075A1
公开(公告)日：2016-04-21
申请号：US14680838
申请日：2015-04-07
Inventor： Hui Dong LEE , Bong Hyuk PARK , Moon-Sik LEE
CPC classification number: H04B1/0458 , H03B5/1212 , H03B5/1228 , H03B5/1243 , H03F3/24 , H04B2001/0408 , H04L25/0278
Abstract: Provided is an oscillation circuit including a voltage adjuster adjusting a magnitude of a power supply voltage according to a digital signal, an LC tank circuit connected between first and second nodes and generating a resonance signal on a basis of the magnitude adjusted power supply voltage, and a differential amplification circuit oscillating the resonance signal or modifying an oscillation state of the resonance signal to output first and second output voltage signals to the first and second nodes, respectively.
Abstract translation: 本发明提供一种振荡电路，其包括电压调节器，其根据数字信号调整电源电压的大小，连接在第一和第二节点之间的LC谐振电路，并且基于幅度调整的电源电压产生谐振信号;以及 差分放大电路振荡谐振信号或修改谐振信号的振荡状态，以将第一和第二输出电压信号分别输出到第一和第二节点。
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Patent Agency Ranking
公开(公告)号：US20140085016A1
公开(公告)日：2014-03-27
申请号：US14036736
申请日：2013-09-25
Inventor： Hui Dong LEE , Kwang Chun LEE , Jae Ho JUNG
IPC: H03L7/095
CPC classification number: H03L7/095
Abstract: A lock detector and a clock generator including the same are disclosed. A lock detector includes a counter unit which counts a non-matching section of a first signal and a second signal to provide a count value, the first signal and the second signal being comparison result signals obtained by comparing a phase of a reference signal with a phase of a comparison signal, and a lock detection unit which outputs a lock detection signal based on a result of comparing the count value with the reference value. Accordingly, a lock state of the phase-locked loop can be detected rapidly and exactly.
Abstract translation: 公开了一种锁定检测器和包括该锁定检测器的时钟发生器。 锁定检测器包括对第一信号的非匹配部分进行计数的计数器单元和提供计数值的第二信号，第一信号和第二信号是通过将参考信号的相位与 比较信号的相位;以及锁定检测单元，其基于将计数值与参考值进行比较的结果来输出锁定检测信号。 因此，可以快速且精确地检测锁相环的锁定状态。
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公开(公告)号：US20240223408A1
公开(公告)日：2024-07-04
申请号：US18395956
申请日：2023-12-26
Inventor： Seung Hun WANG , Sun Woo KONG , Bong Hyuk PARK , Hui Dong LEE , Seung Hyun JANG , Seok Bong HYUN
CPC classification number: H04L25/0272 , H03M3/34 , H04B3/02
Abstract: A reconfigurable circuit for differential network includes: first circuit which is a two-port differential circuit; first cross-coupled switch circuit connected to first port on one side of the first circuit in parallel; and second circuit connected to second port on the other side of the first cross-coupled switch circuit in series. The first cross-coupled switch circuit includes: first-series switch disposed between and connected to first terminal of the first port and first terminal of the second port in series; second-series switch disposed between and connected to second terminal of the first port and second terminal of the second port in series; first cross-coupled element disposed between and connected to the first terminal of the first port and the second terminal of the second port; and second cross-coupled element disposed between and connected to the second terminal of the first port and the first terminal of the second port.
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公开(公告)号：US20230198144A1
公开(公告)日：2023-06-22
申请号：US17871608
申请日：2022-07-22
Inventor： Bong Hyuk PARK , Sunwoo KONG , Hui Dong LEE , Seunghyun JANG , Seok Bong HYUN
CPC classification number: H01Q3/28 , H01Q21/062 , H01Q9/16
Abstract: Provided is a terahertz wideband antenna and a method for designing the same. According to various embodiments, the wideband antenna used for mobile communication in the terahertz wave communication band may include an antenna board including a first surface and a second surface opposite to the first surface, and a plurality of dipole antennas arranged on the antenna board, each of the plurality of dipole antennas may include a feeder disposed on the first surface and a radiator disposed on the second surface and physically spaced apart from the feeder, the feeder may be wire-bonded to a corresponding channel of a plurality of channels of a beam former, and the radiator may be coupled to the feeder to receive a signal from the feeder.
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公开(公告)号：US20180167048A1
公开(公告)日：2018-06-14
申请号：US15835148
申请日：2017-12-07
Inventor： Sun Woo KONG , Cheol Ho KIM , Bong Hyuk PARK , Hui Dong LEE
CPC classification number: H03H7/40 , H01F27/29 , H03F1/565 , H03F3/19 , H03F3/193 , H03F2200/222 , H03F2200/492 , H03F2200/534 , H03F2200/541 , H03H7/09 , H03H7/38 , H03H11/32 , H04M1/76
Abstract: A matching circuit in a communication apparatus may comprise a first inductor disposed at a primary side of a transformer; a second inductor disposed at a secondary side of the transformer; and an impedance element connected to the first inductor and the second inductor. Also, a first terminal of the first inductor may be connected to an input terminal of the transformer, a second terminal of the first inductor may be connected to a common node connected to a ground, a first terminal of the second inductor may be connected to an output terminal of the transformer, a second terminal of the second inductor may be connected to the common node, a first terminal of the impedance element may be connected to the common node, and a second terminal of the impedance element may be connected to the ground.
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公开(公告)号：US20240224221A1
公开(公告)日：2024-07-04
申请号：US18491468
申请日：2023-10-20
Inventor： Seok Bong HYUN , Sung Jun LEE , Sun Woo KONG , Bong Hyuk PARK , Hui Dong LEE , Seung Hyun JANG
CPC classification number: H04W64/00 , G01S5/0218
Abstract: An operation method of a first communication node may comprise: receiving a first signal from a second communication node of the communication system; estimating a first time interval corresponding to a first path detected as a FAP among one or more paths through which the first signal is received; defining a first gain control function based on the estimated first time interval; receiving a second signal transmitted from the second communication node by variably controlling a reception gain based on the first gain control function; estimating a second time interval corresponding to a DP between the first and second communication nodes, based on a result of receiving the second signal based on the first gain control function; and transmitting relative distance information on the second time interval to a first positioning device.
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