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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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公开(公告)号：US20190158078A1
公开(公告)日：2019-05-23
申请号：US16199061
申请日：2018-11-23
Inventor： Dongwoo KANG , Bon Tae KOO
IPC: H03K5/1252 , H03K5/00 , H03H11/32
Abstract: An apparatus and a method for multiplying a frequency of an input signal are provided. The apparatus may include a main differential device for converting the input signal into a first differential signal and a second differential signal, a first multiplying device for outputting a first signal obtained by multiplying a frequency of the first differential signal, a second multiplying device for outputting a second signal obtained by multiplying a frequency of the second differential signal, and a compositing device for outputting a third signal obtained by combining the first signal and the second signal to remove a fundamental frequency component.
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公开(公告)号：US20180348355A1
公开(公告)日：2018-12-06
申请号：US15956305
申请日：2018-04-18
Inventor： Ik Soo EO , Bon Tae KOO
Abstract: Provided is a narrow-band radar device including an orthogonal code generator configured to generate a plurality of orthogonal generators, a pseudo-noise code generator configured to generate a plurality of pseudo-noise codes, a radar transmitter configured to spread-modulate transmission data using the plurality of orthogonal codes and pseudo-noise codes, and a radar receiver configured to demodulate a reception signal using the plurality of orthogonal codes and pseudo-noise codes, and calculate at least one of an azimuth angle, elevation angel, speed, or range of a target from the demodulated reception signal.
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公开(公告)号：US20210359654A1
公开(公告)日：2021-11-18
申请号：US17317483
申请日：2021-05-11
Inventor： Min PARK , Jang Hong CHOI , Bon Tae KOO , Kisu KIM , Kyung Hwan PARK
Abstract: Provided is a drive amplifier. A drive amplifier may include: a main circuit configured to receive an RF input signal and output a first RF output signal; and a selective bias adjustment circuit comprising a first common gate transistor to which a first common gate bias voltage is applied and a second common gate transistor to which a second common gate bias voltage is applied, and configured to output a second RF output signal using the first common gate transistor and the second common gate transistor.
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公开(公告)号：US20210239790A1
公开(公告)日：2021-08-05
申请号：US17159366
申请日：2021-01-27
Inventor： Pil Jae PARK , Bon Tae KOO , Seongdo KIM
Abstract: Disclosed are a pulse radar apparatus that detects a position and a motion of a target, and an operating method thereof. The pulse radar apparatus includes a clock signal generator that outputs a transmission clock signal and a reception clock signal, a transmitter that generates a first signal, a receiver that receives an echo signal and the reception clock signal, and generates a second signal, and a signal processor that converts the second signal into a digital signal and analyzes the digital signal. The clock signal generator controls a transmission-to-reception clock delay, and generates a synchronization signal. The signal processor converts the digital signal into a representative value and analyzes the second signal using the representative value. The representative value is one of an accumulated sum of the digital signal in a time duration between synchronization signals and an average value of the digital signal in the time duration between synchronization signals.
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Patent Agency Ranking
公开(公告)号：US20210181300A1
公开(公告)日：2021-06-17
申请号：US17101506
申请日：2020-11-23
Inventor： Jang Hong CHOI , Bon Tae KOO
Abstract: Disclosed is a radar. The radar comprises a transmitter configured to radiate an output signal to an outside. The transmitter includes the phase shifter including a first oscillator configured to generate a first signal, based on a first external signal and a second oscillator configured to generate a second signal, based on a second external signal having a phase different from that of the first external signal, and wherein the first oscillator further receives the second signal to generate the first signal and the second oscillator further receives the first signal to generate the second signal, and configured to generate an oscillation signal of which phase is shifted based on the first signal and the second signal, and the signal amplifier configured to amplify the phase-shifted oscillation signal to generate the output signal.
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公开(公告)号：US20190025417A1
公开(公告)日：2019-01-24
申请号：US16037998
申请日：2018-07-17
Inventor： Pil Jae PARK , Seongdo KIM , Bon Tae KOO
Abstract: A radar device according to an embodiment of the inventive concept includes a clock generator, a transmitter, a receiver, and a signal processor. The clock generator outputs the transmission clock, outputs the reception clock at the second time after the delay from the first time when the transmission clock is outputted, and generates the notification signal when the delay has the minimum value. The transmitter emits a transmission signal based on the transmission clock. The receiver receives an echo signal corresponding to the transmission signal, and generates a first signal corresponding to the echo signal based on the reception clock. The signal processor obtains a third time point at which a delay has the minimum value based on the notification signal.
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公开(公告)号：US20180278072A1
公开(公告)日：2018-09-27
申请号：US15933853
申请日：2018-03-23
Inventor： Ja Yol LEE , Bon Tae KOO
Abstract: Provided is a battery charging system including a battery gauge configured to scale down to indicate a charging capacity of a battery, a charging mode switching unit configured to monitor a charging state of the battery gauge, switch a charging mode according to the charging state of the battery gauge, and charge the battery according to the switched charging mode, and a battery charging control unit configured to receive a charging current input to the battery gauge and a battery charging current input to the battery, and control the charging mode switching unit.
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公开(公告)号：US20180277480A1
公开(公告)日：2018-09-27
申请号：US15895549
申请日：2018-02-13
Inventor： Dongwoo KANG , Bon Tae KOO
IPC: H01L23/522 , H01F27/29 , H01L49/02 , H01L23/66
CPC classification number: H01L23/5227 , H01F17/0013 , H01F17/02 , H01F27/29 , H01F2017/002 , H01L23/66 , H01L28/10 , H01L2223/6661
Abstract: Provided are a differential inductor and a semiconductor device including the same, the differential inductor including first circular parts and second circular parts disposed on a first layer and composing a first spiral shape, a first semi-circular part disposed on the first layer and in the first circular part that is an innermost one of the first circular parts, and a second semi-circular part disposed outside the first circular part that is an outermost one of the first circular parts, third semi-circular parts and fourth semi-circular parts disposed on a second layer under the first layer and composing a second spiral shape, connection means configured to connect, to one, the first and second circular parts, and the first to fourth semi-circular parts, wherein the second circular parts are respectively interposed between the first circular parts, and a part of the fourth semi-circular parts is respectively interposed between the second semi-circular parts.
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公开(公告)号：US20180156861A1
公开(公告)日：2018-06-07
申请号：US15716612
申请日：2017-09-27
Inventor： Dongwoo KANG , Bon Tae KOO
IPC: G01R31/28 , H03B5/12 , H01L31/028 , H01L31/08
Abstract: Provided is a multi-source signal generator including a voltage-controlled oscillator configured to generate a first source signal having a first frequency to deliver the first source signal to a first output port, a Single Pole Double Throw (SPDT) switch configured to select the first source signal or an external source signal, a first power amplifier configured to amplify power of the first source signal selected by the SPDT switch, and a multi-source converting unit configured to multiply a frequency of the amplified first source signal or divide power of the amplified first source signal to generate multi-source signals, wherein the frequency of the first source signal and frequencies of the multi-source signals are included in a millimeter wave band or sub-terahertz (THz) band.
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