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11.发明公开公开(公告)号：US20230224191A1
公开(公告)日：2023-07-13
申请号：US18059197
申请日：2022-11-28
Inventor： Seung Hun WANG , Sun Woo KONG , Bong Hyuk PARK , Hui Dong LEE , Seung Hyun JANG , Seok Bong HYUN
CPC classification number: H04L25/0272 , H01P1/383
Abstract: A differential transmission line having a switch may comprise: a first transmission line comprising a first distribution element having a first impedance; a second transmission line comprising a second distribution element having a second impedance; and a first switch block connected between a first end of the first transmission line and a first end of the second transmission line, wherein the first switch block comprises a first switch connected in series to the first end of the first transmission line, a second switch connected in series to the first end of the second transmission line, a first-cross capacitor connected between a first terminal of the first switch and a second terminal of the second switch, and a second cross-capacitor connected between a first terminal of the second switch and a second terminal of the first switch.
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12.发明申请公开(公告)号：US20190207790A1
公开(公告)日：2019-07-04
申请号：US16226812
申请日：2018-12-20
Inventor： Seung Hyun JANG , Sun Woo KONG , Kwang Seon KIM , Myung Don KIM , Hui Dong LEE
IPC: H04L25/49 , H04B10/508 , H03M3/00
Abstract: Disclosed are a method for signal modulation based on pulse density modulation and an apparatus therefore. The method for signal modulation is performed in an apparatus for modulating a signal based on pulse density modulation and includes performing pulse density modulation on an analog signal input to the apparatus through a pulse density modulator of the apparatus, converting a bandwidth of the pulse density modulated signal into a bandwidth required for the apparatus through a correlative encoder of the apparatus, transmitting the bandwidth converted signal to a radio frequency (RF) unit of the apparatus based on an electrical-to-optical (E/O) converter and an optical-to-electrical (O/E) converter of the apparatus, filtering a frequency band of the bandwidth converted signal and outputting the frequency band filtered signal via the RF unit.
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13.发明申请公开(公告)号：US20180205582A1
公开(公告)日：2018-07-19
申请号：US15870826
申请日：2018-01-12
Inventor： Sun Woo KONG , Bong Hyuk PARK , Moon Sik LEE , Hui Dong LEE
CPC classification number: H04L25/4906 , H03F3/19 , H03F3/195 , H03F3/2171 , H03F3/265 , H03F3/45179 , H03F2200/534 , H03F2203/45172
Abstract: A data modulation apparatus may comprise a S2D conversion part including a first amplifier operating based on a carrier wave signal and two transformers receiving an output signal of the first amplifier; a first switch part transferring status of input data to the first amplifier based on the input data; a differential amplification part receiving output signals of the S2D conversion part and amplifying the output signals of the S2D conversion part; a D2S conversion part receiving output signals of the differential amplification part and performing modulation on the output signals by converting the output signals to a single signal; and a second switch part transferring the output signals of the differential amplification part to the D2S conversion part based on the input data. Here, the first switch part and the second switch part may be alternately turned on and off.
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公开(公告)号：US20170302234A1
公开(公告)日：2017-10-19
申请号：US15487905
申请日：2017-04-14
Inventor： Sunwoo KONG , Bong Hyuk PARK , Moon-Sik LEE , Hui Dong LEE
CPC classification number: H03F1/56 , H03F1/347 , H03F1/565 , H03F3/193 , H03F3/195 , H03F3/265 , H03F3/45179 , H03F2200/318 , H03F2200/391 , H03F2200/399 , H03F2200/411 , H03F2200/451 , H03F2200/534 , H03F2200/537
Abstract: A high frequency amplifier circuit includes a transistor including a drain, a gate, and a source, an inductance-capacitor (LC) tank connected to the drain, and a transformer connected to the gate and the source.
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Patent Agency Ranking
15.发明公开公开(公告)号：US20230198485A1
公开(公告)日：2023-06-22
申请号：US17964157
申请日：2022-10-12
Inventor： Sunwoo KONG , Bong Hyuk PARK , Hui Dong LEE , Seunghyun JANG , Seok Bong HYUN
Abstract: Disclosed is a bidirectional amplifier. The bidirectional amplifier includes a first matching circuit, a second matching circuit, an amplifier circuit connected between the first matching circuit and the second matching circuit, that amplifies a first input signal received from the first matching circuit to output the amplified first input signal to the second matching circuit, and that amplifies a second input signal received from the second matching circuit to output the amplified first input signal to the first matching circuit, and the first and second matching circuits have a symmetrical structure and operate complementary to each other.
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公开(公告)号：US20220373403A1
公开(公告)日：2022-11-24
申请号：US17743072
申请日：2022-05-12
Inventor： Seunghyun JANG , Sunwoo KONG , Bong Hyuk PARK , Hui Dong LEE , Seok Bong HYUN
Abstract: Provided are a semiconductor-based temperature sensor and a method of operating the semiconductor-based temperature sensor. A temperature sensor includes an electrical temperature signal generator configured to generate a first electrical temperature signal that changes according to temperature and a second electrical temperature signal that changes according to temperature at a different rate from that of the first electrical temperature signal, a differential signal generator configured to generate a differential electrical temperature signal between the first electrical temperature signal and the second electrical temperature signal, and an analog digital converter (ADC) configured to convert the differential electrical temperature signal into digital temperature information.
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公开(公告)号：US20190207567A1
公开(公告)日：2019-07-04
申请号：US16201754
申请日：2018-11-27
Inventor： Sun Woo KONG , Myung Don KIM , Cheol Ho KIM , Hui Dong LEE
Abstract: High frequency signal amplifier including balun is disclosed. The amplifier comprises an input terminal (Vin) through which the high frequency signal is input; a balun which is connected to the input terminal and outputs a first differential signal and a second differential signal based on the high frequency signal; a transistor (M) which is connected to the balun and outputs an amplified high frequency signal based on the first differential signal and the second differential signal; an output terminal which is connected to the transistor (M) and through which the amplified high frequency signal is acquired and the amplified high frequency signal is output. Therefore, performance of the amplifier can be enhanced.
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18.发明申请公开(公告)号：US20150200589A1
公开(公告)日：2015-07-16
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。
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公开(公告)号：US20130147462A1
公开(公告)日：2013-06-13
申请号：US13687200
申请日：2012-11-28
Inventor： Hui Dong LEE , Jae Ho JUNG
IPC: G01R23/00
CPC classification number: G01R23/00 , G01R23/005
Abstract: A frequency comparator outputs an input reference signal and a comparison target signal as pulse-form signals, and is charged or discharged with a voltage corresponding to the reference signal to output a reference voltage having a variable first frequency range, and charged or discharged with a voltage corresponding to the comparison target signal to output a comparison target voltage having a variable second frequency range. The frequency comparator compares the reference voltage having the first frequency range and the comparison output voltage having the second frequency range.
Abstract translation: 频率比较器输出输入参考信号和比较目标信号作为脉冲形式的信号，并用对应于参考信号的电压进行充电或放电，以输出具有可变的第一频率范围的参考电压，并用 电压，以输出具有可变的第二频率范围的比较目标电压。 频率比较器比较具有第一频率范围的参考电压和具有第二频率范围的比较输出电压。
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