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公开(公告)号：US11863126B2
公开(公告)日：2024-01-02
申请号：US17327401
申请日：2021-05-21
Inventor： Seon-Ho Han , Bon Tae Koo
CPC classification number: H03D7/1483 , H03D7/1441 , H03D7/1458 , H03D7/165
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：US11837996B2
公开(公告)日：2023-12-05
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
CPC classification number: H03D3/247 , H03D3/02 , H03D7/00 , H03F3/04 , H04L27/22 , G01S7/354 , G01S7/358 , H03K2005/00078 , H03K2005/00286
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：US11067678B2
公开(公告)日：2021-07-20
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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4.发明申请公开(公告)号：US20180158204A1
公开(公告)日：2018-06-07
申请号：US15833518
申请日：2017-12-06
Inventor： Hyun Kyu Yu , Sung Weon Kang , Bon Tae Koo , Joo Hyun Lee
CPC classification number: G06T7/50 , H04N5/374 , H04N13/128 , H04N13/214 , H04N13/218 , H04N13/271 , H04N2213/003
Abstract: Provided is an image processing device. The device includes an active pixel sensor array including a plurality of pixels configured to generate a plurality of signals corresponding to a target, and an image processor configured to generate a depth map about the target based on an intensity difference of two signals among the plurality of signals.
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公开(公告)号：US11067679B2
公开(公告)日：2021-07-20
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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Patent Agency Ranking
公开(公告)号：US10976409B2
公开(公告)日：2021-04-13
申请号：US15818667
申请日：2017-11-20
Inventor： Ja Yol Lee , Bon Tae Koo
IPC: G01S7/35 , H03F3/21 , H03F3/19 , H03L7/089 , H03L7/093 , H03L1/02 , H03L7/12 , G01S13/34 , H03B5/04 , H03B5/32
Abstract: Provided is frequency-modulated continuous wave generator. The frequency-modulated continuous wave generator includes a ramp signal generator configured to generate an analog ramp signal, a reference signal generator configured to generate a reference signal based on the analog ramp signal, a phase locked loop configured to output a control voltage based on the reference signal, and a voltage-controlled oscillator configured to generate a frequency-modulated continuous wave based on the control voltage. The ramp signal generator is further configured to generate the analog ramp signal based on a feedback signal based on the frequency-modulated continuous wave.
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公开(公告)号：US20130267241A1
公开(公告)日：2013-10-10
申请号：US13861374
申请日：2013-04-11
Inventor： Young Seok BAEK , Bon Tae Koo
IPC: H04W72/08
CPC classification number: H04W72/087 , H04W52/244 , H04W52/265
Abstract: A method for coordinating intercell interference and a wireless communication system are disclosed. The method includes calculating, by a first device, a beamforming vector, transmitting a signal to a first terminal using the beamforming vector calculated by the first device, receiving, by the first device, Quality of Service (QoS) information equivalent to the signal transmitted from the first terminal, and determining whether the QoS information received by the first device satisfies a predetermined first criterion and transmitting information indicating whether QoS is satisfied to a first base station.
Abstract translation: 公开了一种用于协调小区间干扰的方法和无线通信系统。 该方法包括由第一设备计算波束形成向量，使用由第一设备计算的波束形成向量向第一终端发送信号，由第一设备接收等效于传输的信号的服务质量（QoS）信息 确定由第一设备接收到的QoS信息是否满足预定的第一标准，并且向第一基站发送指示是否满足QoS的信息。
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公开(公告)号：US11799424B2
公开(公告)日：2023-10-24
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
CPC classification number: H03D3/247 , H03D3/02 , H03D7/00 , H03F3/04 , H04L27/22 , G01S7/354 , G01S7/358 , H03K2005/00078 , H03K2005/00286
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：US11517216B2
公开(公告)日：2022-12-06
申请号：US16248582
申请日：2019-01-15
Inventor： Min-Hyung Cho , Young-deuk Jeon , Bon Tae Koo , Mun Yang Park , Youngseok Baek
IPC: A61B5/0537 , G01N27/02 , A61B5/00 , G01N33/483
Abstract: The inventive concept relates to a body composition analysis system. A body composition analysis system according to an embodiment of the inventive concept includes a sinusoidal signal generator, a synchronous detector, and a bioimpedance analyzer. The sinusoidal signal generator converts a digital sinusoidal signal having a target frequency into an analog sinusoidal signal. The synchronous detector extracts a target frequency component of a bioelectrical signal generated in response to an analog sinusoidal signal based on the digital sinusoidal signal. The bioimpedance analyzer calculates the bioimpedance based on the target frequency component of the bioelectrical signal. According to the inventive concept, it is possible to improve the selectivity for extracting the target frequency component of the bioelectrical signal and to reduce the area and variations of characteristics for the implementation of the integrated circuit.
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公开(公告)号：US11209520B2
公开(公告)日：2021-12-28
申请号：US16881763
申请日：2020-05-22
Inventor： Kisu Kim , Bon Tae Koo
IPC: G01S7/292
Abstract: A radar includes a transmitter that generates a first signal that is a frequency modulated continuous wave (FMCW) signal and radiates the generated first signal to an outside, a receiver that receives a second signal based on the first signal and generates a baseband signal of the second signal, a signal processor that extracts a target frequency signal from the baseband signal, and a signal converter that outputs the target frequency signal that is controlled as a digital signal, and wherein the signal processor includes a high pass filter connected to the receiver, that receives the baseband signal, and attenuates a low frequency signal present in the received baseband signal, based on a first cutoff frequency, an amplifier that amplifies the attenuated baseband signal, and a signal controller that removes a direct current component of the amplified baseband signal, based on a second cutoff frequency.
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