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公开(公告)号：US20250080886A1
公开(公告)日：2025-03-06
申请号：US18439939
申请日：2024-02-13
Inventor： Seon-Ho HAN , Bon Tae KOO
IPC: H04Q11/04 , H04B7/0413 , H04J14/08
Abstract: Disclosed is a time-division multi-channel transmission and reception system including a transmitter and a receiver. The transmitter includes a first transmit channel that outputs a first transmit signal based on a first time-division pulse signal, a second transmit channel that outputs a second transmit signal based on a second time-division pulse signal, and a time-division pulse generator that generates the first time-division pulse signal and the second time-division pulse signal based on a clock signal. The first transmit signal and the second transmit signal are separated from each other in time.
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公开(公告)号：US20230125872A1
公开(公告)日：2023-04-27
申请号：US17881417
申请日：2022-08-04
Inventor： Seon-Ho HAN , Young-Su KWON
Abstract: Disclosed are a digital CDR circuit and a feedback loop circuit including the same. The digital CDR circuit includes a phase detector that receives an input signal and outputs a phase detection result signal corresponding to a determination result for a sampling time based on the input signal, a charge pump that receives the phase detection result signal and outputs an amplified signal obtained by multiplying the phase detection result signal by a gain, a loop filter that receives the amplified signal and filters the amplified signal to output a filtered signal, and a phase shift control code generator that generates a control signal for controlling a phase of a signal based on the filtered signal, and the input signal includes plural data signals and plural error signals, and the data signals and the error signals are digital signals which are quantized based on a signal magnitude.
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Patent Agency Ranking
公开(公告)号：US20180359019A1
公开(公告)日：2018-12-13
申请号：US15921424
申请日：2018-03-14
Inventor： Seon-Ho HAN , Bon Tae KOO
CPC classification number: H04B7/0897 , H01Q3/36 , H01Q3/42 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D7/165 , H03F3/19 , H03F3/211 , H03F3/26 , H03F3/45076 , H03F2200/294 , H03F2200/451 , H03G3/3036 , H03G2201/103 , H03G2201/307 , H04B1/16
Abstract: Provided is a phase array receiver. A phase array receiver according to an embodiment of the present invention includes a plurality of antennas, a plurality of low-noise amplifiers, a plurality of phase shifters, a plurality of transconductors, and a frequency mixer. A plurality of low-noise amplifiers amplify RF signals received from the plurality of antennas. The plurality of phase shifters adjusts the phase of the RF signals to generate a plurality of RF phase adjustment signals. The plurality of transconductors convert a plurality of RF phase adjustment signals into a plurality of RF current signals based on the gain control signal. The frequency mixer converts a sum of the plurality of RF current signals into a mixed current signal. According to the inventive concept, the linearity of the signal processing may be improved and the area for the implementation of the phase array receiver may be reduced.
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4.发明公开公开(公告)号：US20230318577A1
公开(公告)日：2023-10-05
申请号：US18182571
申请日：2023-03-13
Inventor： Seon-Ho HAN , Bon Tae KOO
Abstract: Disclosed is a phase shift circuit including an input circuit for generating first to fourth internal signals based on an in-phase signal, a complementary in-phase signal, a quadrature phase signal, and a complementary quadrature phase signal and a switching circuit for outputting first to fourth shift signals based on the first to fourth internal signals. The input circuit includes a first transistor connected between a ground node and a first node to operate based on the in-phase signal and the first bias signal, a second transistor connected between the ground node and a second node to operate based on the complementary in-phase signal and the first bias signal, a third transistor connected between the ground node and the first node to operate based on the second bias signal, and a fourth transistor connected between the ground node and the second node to operate based on the second bias signal.
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公开(公告)号：US20220302909A1
公开(公告)日：2022-09-22
申请号：US17585009
申请日：2022-01-26
Inventor： Jang Hong CHOI , Bon Tae KOO , Kyung Hwan PARK , Min PARK , Seon-Ho HAN
Abstract: Disclosed is a phase demodulator, which includes a transmitter that outputs a reference signal to a target, a receiver that receives a target signal generated in response to the reference signal from the target, and a demodulation processor that demodulates the target signal, and the demodulation processor includes a phase controller that outputs a first phase signal based on the reference signal, a phase shifter that delays a phase of the first phase signal to output a first delayed signal, a mixer that outputs a first mixing signal based on the target signal and the first delay signal, and an amplifier that outputs a first feedback signal generated by amplifying the first mixing signal to the phase controller.
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公开(公告)号：US20210367337A1
公开(公告)日：2021-11-25
申请号：US17327401
申请日：2021-05-21
Inventor： Seon-Ho HAN , Bon Tae KOO
Abstract: Disclosed is a phase shifter, which includes a signal generator that generates a first signal and a second signal having a phase orthogonal to a phase of the first signal, and outputs the first signal and the second signal, an operator that generates a first current and a second current, and amplifies the first current and the second current, and a signal converter converting a first digital signal and a second digital signal. The operator includes an input circuit converting the first signal and the second signal, a path selection circuit determining paths of the generated first current and the generated second current, and a cascode circuit buffering the first current and the second current. The operator sums the first current and the second current, controls a vector of the first current and a vector of the second current, and generates a voltage signal through an output load.
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7.发明申请SUBSAMPLING RECEIVER USING INTERSTAGE OFF-CHIP RF BAND PASS FILTER 有权使用INTERSTAGE OFF-CHIP RF BAND PASS FILTER接收器公开(公告)号：US20130178179A1
公开(公告)日：2013-07-11
申请号：US13737726
申请日：2013-01-09
Inventor： Seon-Ho HAN , Hyun Kyu YU
IPC: H04B1/06
CPC classification number: H04B1/06 , H04B1/0014
Abstract: The inventive concept relates to a wireless communication receiver. The wireless communication receiver includes a second off-chip RF filter, an RF-to-digital converter and a digital pre-processor processing a signal converted into a digital. The RF-to-digital converter converts an RF signal being received into a digital signal of DC frequency band or intermediate frequency band and has a dynamic range that can process a wanted RF band signal and unwanted signals near to the wanted RF band signal. The digital pre-processor digitally controls a signal gain to transmit it to a modulator/demodulator.
Abstract translation: 本发明构思涉及无线通信接收机。 无线通信接收机包括第二片外RF滤波器，RF到数字转换器和处理转换成数字信号的数字预处理器。 RF-数字转换器将接收的RF信号转换为DC频带或中频带的数字信号，并且具有可处理所需RF频带信号的动态范围和靠近所需RF频带信号的不需要的信号。 数字预处理器以数字方式控制信号增益，将其发送到调制器/解调器。
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