公开(公告)号：US20250016902A1

公开(公告)日：2025-01-09

申请号：US18712658

申请日：2021-11-24

Applicant: LG ELECTRONICS INC.

Inventor： Youngsik KIM ,  Taehyung KIM ,  Sungeun LEE ,  Mikiko ITO

IPC: H05G1/08 ,  H05G1/26

Abstract: The present invention relates to a device of controlling an electron emission device generating X-rays, the device comprising: an electron emission device including at least one of at least one cathode electrode, an anode electrode paired with the cathode electrode, and a gate electrode for controlling a current flowing through the anode electrode; a cathode current detection part for detecting a current flowing through the cathode electrode of the electrode emission device; a reference voltage generation part for generating a reference voltage; and a gate voltage control part which receives the reference voltage and a detection voltage of the cathode current detection part, determines a gate voltage for controlling the electron emission device so that the detection voltage of the cathode current detection part becomes equal to the reference voltage, and applies the determined gate voltage to the gate electrode of the electron emission device.

公开(公告)号：US20190391061A1

公开(公告)日：2019-12-26

申请号：US16464235

申请日：2017-11-16

Applicant: LG ELECTRONICS INC.

Inventor： Kangsun LEE ,  Taehyung KIM ,  Seunghyun LEE ,  Misook KIM ,  Seunghyok KIM ,  Oedong KIM ,  Hyekyoung SEO

IPC: G01N15/06 ,  G01N1/22

Abstract: Provided is a dust measurement apparatus for accurately measuring the dust concentration of two spaces and minimizing the possibility of noise generation, comprising: a dust sensor; a body housing having the dust sensor loaded therein, and having an inner space; a first outer hole and a second outer hole, which are respectively formed at two points of the body housing so as to connect the outside and the inner space; a first fan and a second fan, which are provided at the positions corresponding to each of the first outer hole and the second outer hole and driven so as to form a flow toward the inner space from the outside; and a control part for selectively driving the first fan or the second fan.

公开(公告)号：US20220405991A1

公开(公告)日：2022-12-22

申请号：US17443943

申请日：2021-07-28

Applicant: LG ELECTRONICS INC. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Mikiko ITO ,  Taehyung KIM ,  Youngjun JUNG ,  Byungkee LEE ,  Sangjun PARK ,  Seungryong CHO ,  Hyeongseok KIM ,  Jeongtae SOH

IPC: G06T11/00 ,  A61B6/02 ,  A61B6/00 ,  G06T7/00

Abstract: An X-ray imaging apparatus includes an X-ray generator including a plurality of X-ray sources, an X-ray detector configured to detect X-rays radiated from the plurality of X-ray sources and generate a plurality of pieces of projection data, and a processor configured to apply log projection to each of the plurality of pieces of projection data, to apply weighted projection to the log-projected projection data, to apply a bidirectional ramp filter to the weighted-projected projection data, and to generate a tomographic image reconstructed based on each of the projection data to which the bidirectional ramp filter is applied.

公开(公告)号：US20220386982A1

公开(公告)日：2022-12-08

申请号：US17542095

申请日：2021-12-03

Applicant: LG ELECTRONICS INC.

Inventor： Youngjun JUNG ,  Seungchan BAEK ,  Taehyung KIM ,  Sangjun PARK ,  Mikiko ITO ,  Hyoungjoon JO

IPC: A61B6/00 ,  G01T1/24 ,  G01T1/20 ,  G01T1/202

Abstract: An X-ray detector integral with an automatic exposure control (AEC) device can include an X-ray detection part configured to detect X-rays irradiated from an X-ray source and generate X-ray image data; and an automatic exposure detection board located below the X-ray detection part and configured to generate an X-ray sensing signal for automatic exposure control based on residual X-rays which have passed by or through the X-ray detection part.