公开(公告)号：US20190216341A1

公开(公告)日：2019-07-18

申请号：US16324628

申请日：2017-07-05

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyeon Min BAE ,  Jong Kwan CHOI ,  Min Gyu CHOI ,  Gun Pil HWANG ,  Min Su JI ,  Jae Myoung KIM

IPC: A61B5/026 ,  A61B5/11 ,  A61B5/107 ,  A61B5/00 ,  A61B5/1455 ,  G01N21/359

CPC classification number: A61B5/0261 ,  A61B5/00 ,  A61B5/1071 ,  A61B5/1116 ,  A61B5/1455 ,  A61B5/14553 ,  A61B5/6803 ,  G01N21/359

Abstract: According to one aspect of the invention, there is provided a method for monitoring hemodynamics, comprising the steps of: acquiring information on a posture of a first subject wearing a monitoring device; estimating a motion artifact predicted to be included in a spectroscopic measurement signal from the first subject which is measured by the monitoring device, with reference to the acquired information on the posture of the first subject, and a motion artifact estimation model for defining a correlation between a posture of at least one subject and a motion artifact occurring in a signal measured from the at least one subject; and removing the estimated motion artifact from the measurement signal from the first subject.

公开(公告)号：US20190067775A1

公开(公告)日：2019-02-28

申请号：US16145530

申请日：2018-09-28

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyeon Min BAE ,  Ha Il SONG ,  Joon Yeong LEE ,  Tae Hoon YOON ,  Hyo Sup WON

IPC: H01P3/12 ,  H01P3/16 ,  H01P5/08 ,  H01P5/02

Abstract: The present invention relates to a waveguide for transmission of electromagnetic wave signals. According to one aspect of the invention, there is provided a waveguide for transmission of electromagnetic wave signals, comprising: a dielectric part comprising two or more dielectrics having different permittivity; and a conductor part surrounding at least a part of the dielectric part.

公开(公告)号：US20170325747A1

公开(公告)日：2017-11-16

申请号：US15523017

申请日：2014-11-14

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Hyeon Min BAE ,  Jong Kwan CHOI ,  Min Gyu CHOI ,  Jae Myoung KIM ,  Gun Pil HWANG

IPC: A61B5/00 ,  G01J3/42 ,  A61B5/1455

CPC classification number: A61B5/7225 ,  A61B5/1455 ,  A61B5/14553 ,  G01J3/02 ,  G01J3/42 ,  G01J2003/2866 ,  G01N21/25

Abstract: Disclosed are an optical spectroscopy system using a pipeline-structured matched filter and a dual-slope analog digital converter, and a method for controlling the optical spectroscopy system. The optical spectroscopy system may comprise: a pipeline-structured matched filter sequentially connecting input voltage, transmitted by means of an amplifier, to a first capacitor and a second capacitor by means of a first switch terminal; and a dual-slope analog digital converter for sequentially receiving, by means of a second switch terminal, the electric charge stored in the first capacitor and second capacitor, and digitizing the input voltage.

公开(公告)号：US20130259112A1

公开(公告)日：2013-10-03

申请号：US13740118

申请日：2013-01-11

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Hyeon Min BAE ,  Soon Won KWON

IPC: H04L25/03

CPC classification number: H04L25/03891 ,  H04L25/03961 ,  H04L2025/03407

Abstract: A variable-precision distributed arithmetic (VPDA) multi-input multi-output (MIMO) equalizer is presented to reduce the size and dynamic power of 112 Gbps dual-polarization quadrature phase-shift-keying (DP-QPSK) coherent optical communication receivers. The VPDA MIMO equalizer compensates for channel dispersion as well as various non-idealities of a time-interleaved successive approximation register (SAR) based analog-to-digital converter (ADC) simultaneously by using a least mean square (LMS) algorithm. As a result, area-hungry analog domain calibration circuits are not required. In addition, the VPDA MIMO equalizer achieves 45% dynamic power reduction over conventional finite impulse response (FIR) to equalizers by utilizing the minimum required resolution for the equalization of each dispersed symbol.

Abstract translation: 提出了一种可变精度分布算法（VPDA）多输入多输出（MIMO）均衡器，以减小112 Gbps双极化正交相移键控（DP-QPSK）相干光通信接收机的大小和动态功耗。 VPDA MIMO均衡器通过使用最小均方（LMS）算法同时补偿时间交错逐次逼近寄存器（SAR）的模数转换器（ADC）的信道色散以及各种非理想性。 因此，不需要占地面积的模拟域校准电路。 此外，VPDA MIMO均衡器通过利用每个分散符号的均衡的最小所需分辨率，实现了对均衡器的传统有限脉冲响应（FIR）的45％的动态功率降低。

公开(公告)号：US20210013575A1

公开(公告)日：2021-01-14

申请号：US17036668

申请日：2020-09-29

Applicant: Korea Advanced Institute Of Science And Technology

Inventor： Hyeon Min BAE ,  Ha Il SONG

IPC: H01P3/16 ,  H01P3/12 ,  H01P3/127

Abstract: According to one aspect of the invention, there is provided a waveguide for transmission of electromagnetic wave signals, comprising: a first dielectric part comprising a dielectric; a conductor part covering a part of the first dielectric part; and a second dielectric part surrounding the first dielectric part and the conductor part.

公开(公告)号：US20200274222A1

公开(公告)日：2020-08-27

申请号：US16874213

申请日：2020-05-14

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyeon Min BAE ,  Ha II SONG ,  Huxian JIN

IPC: H01P5/08 ,  H01P3/08 ,  H01P3/16 ,  H01P1/00

Abstract: Disclosed is a chip-to-chip interface using a microstrip circuit and a dielectric waveguide. A board-to-board interconnection device, according to one embodiment of the present invention, comprises: a waveguide which has a metal cladding and transmits a signal from a transmitter-side board to a receiver-side board; and a microstrip circuit which is connected to the waveguide and has a microstrip-to-waveguide transition (MWT), wherein the microstrip circuit matches a microstrip line and the waveguide, adjusts the bandwidth of a predetermined first frequency band among the frequency bands of the signal, and provides same to the receiver.

公开(公告)号：US20180131084A1

公开(公告)日：2018-05-10

申请号：US15372768

申请日：2016-12-08

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Hyo-Hoon PARK ,  Hyeon Min BAE ,  Ha Il SONG ,  Dae-Seong LEE ,  Harin LEE

IPC: H01P5/107

CPC classification number: H01Q1/38 ,  G02B6/12 ,  H01P3/121 ,  H01P3/165 ,  H01P5/1022 ,  H01Q9/0485 ,  H05K1/0242 ,  H05K1/0274

Abstract: Disclosed is a printed circuit board (PCB) structure, in which an electromagnetic signal transmitting antenna and/or an electromagnetic signal receiving antenna, and an electromagnetic signal transferring tunnel (EM-tunnel) are embedded, the PCB structure including a PCB, an EM-tunnel that includes a dielectric core and a metal clad that surrounds the dielectric core and that is embedded in the PCB to be parallel to the PCB, and at least one transmitting antenna and/or at least one receiving antenna that are embedded in the PCB, wherein the transmitting antenna and/or the receiving antenna are arranged at an input port and an output port of the EM-tunnel embedded in the PCB to transmit and receive electromagnetic signals to and from the interior of the EM-tunnel.

公开(公告)号：US20170141450A1

公开(公告)日：2017-05-18

申请号：US15342551

申请日：2016-11-03

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Hyeon Min BAE ,  Ha II SONG ,  HuXian JIN ,  Joon Yeong LEE ,  Hyo Sup WON ,  Tae Hoon YOON

IPC: H01P5/107 ,  H01P3/16 ,  H01P5/08 ,  H01P3/08

CPC classification number: H01P5/087 ,  H01P3/081 ,  H01P3/122 ,  H01P3/16 ,  H01P5/107

Abstract: The present invention relates to a microstrip circuit and a chip-to-chip interface apparatus comprising the same. According to one aspect of the invention, there is provided a microstrip circuit. The microstrip circuit includes a feeding line providing a signal, a probe being connected to one end of the feeding line, and a patch emitting the signal to a waveguide. The patch is disposed in a layer opposite to a layer in which the feeding line and the probe are disposed, with a core substrate being positioned therebetween. At least one of length of the probe, thickness of the core substrate, and permittivity of the core substrate is determined based on bandwidth of a transition between the microstrip circuit and the waveguide.

公开(公告)号：US20230119563A1

公开(公告)日：2023-04-20

申请号：US17909204

申请日：2021-03-05

Applicant: SEOUL NATIONAL UNIVERSITY HOSPITAL ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY ,  OBE LAB., INC.

Inventor： Sang Bae KO ,  Tae Jung KIM ,  Hyeon Min BAE ,  Jong Kwan CHOI ,  Jae Myoung KIM

IPC: A61B5/00 ,  A61B5/145

Abstract: There is provided a method of providing information about prognosis after cardiac arrest. The method includes the steps of: calculating biological information based on a signal relating to a hemoglobin concentration measured from a cerebral region of a subject to be measured; and providing the information about the prognosis after cardiac arrest of the subject with reference to the calculated biological information and a biomarker relating to the prognosis after cardiac arrest measured from a blood of the subject.

公开(公告)号：US20190192081A1

公开(公告)日：2019-06-27

申请号：US16324639

申请日：2017-07-05

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyeon Min BAE ,  Gun Pil HWANG ,  Min Gyu CHOI ,  Jong Kwan CHOI ,  Jae Myoung KIM ,  Min Su JI

IPC: A61B5/00 ,  A61B5/026 ,  G06T7/73

CPC classification number: A61B5/721 ,  A61B5/00 ,  A61B5/0042 ,  A61B5/0077 ,  A61B5/02028 ,  A61B5/026 ,  A61B5/1455 ,  A61B5/4064 ,  A61B5/6803 ,  A61B5/684 ,  A61B5/7253 ,  G06T7/73

Abstract: The present disclosure relates to a method and a system for standardizing a hemodynamics measurement result and a non-transitory computer-readable recording medium. According to one aspect of the present disclosure, provided is a method for standardizing a measurement result obtained from a device for monitoring hemodynamics, the method comprising the steps of: capturing an image of a subject wearing a monitoring device; defining a photogrammetric coordinate system on the captured image, and converting a preset local coordinate system on the monitoring device into the photogrammetric coordinate system; and converting the photogrammetric coordinate system into a standard coordinate system which is based on a standard space.