公开(公告)号：US20210255139A1

公开(公告)日：2021-08-19

申请号：US17139517

申请日：2020-12-31

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Kook Nyung LEE ,  Woo Kyeong SEONG ,  Won Hyo KIM ,  Dong Ki HONG ,  Hye Lim KANG

IPC: G01N27/414

Abstract: The gas sensor according to an exemplary embodiment of the present invention comprises: an FET device including one or more gate electrodes; a sensor array part including a plurality of sensors, in which a first electrode of each sensor is connected to at least one gate electrode of the plurality of gate electrodes in the FET device; and a controller detecting a gas using a current between a drain-source in response to voltage changes in the gate electrode of the FET device, wherein each sensor includes: a first electrode connected to a gate electrode of the FET device; a second electrode receiving an operating voltage through a switch controlled by the controller; and a detection film interposed between the first electrode and the second electrode.

公开(公告)号：US20210252787A1

公开(公告)日：2021-08-19

申请号：US17256849

申请日：2020-02-20

Applicant: Korea Electronics Technology Institute

Inventor： Hwa Seon SHIN ,  Hye In LEE ,  Sung Hwan CHUN ,  Ji Min JANG ,  Sung Hun PARK

IPC: B29C64/386 ,  B29C64/40 ,  G06T17/20 ,  B33Y50/02

Abstract: A method for producing a support structure of a 3D model for 3D printing is provided. A method for producing a support according to an embodiment of the present invention comprises the steps of: dividing a surface constituting a 3D model into multiple surface patches; classifying respective divided surface patches according to geometric characteristics; and producing supports corresponding to the classified characteristics with regard to respective surface patches. Accordingly, during metal laminate manufacturing, the output stability may be improved while reducing the support producing process time. In addition, the surfaces may be expressed by different colors according to the result of geometric characteristic classification, and the supports may also be expressed by different colors according to the type, thereby playing the role of guide lines such that the user can recognize the shape of the surfaces and the type of supports to be installed on the corresponding surfaces. Moreover, the size of a support tip is determined in view of the thickness of the area in which a support is to be produced, thereby preventing the problem of output quality degradation which would otherwise occur because the support cannot move upwards through an output part.

公开(公告)号：US20210216933A1

公开(公告)日：2021-07-15

申请号：US17130446

申请日：2020-12-22

Applicant: Korea Electronics Technology Institute

Inventor： Yong Kuk PARK ,  Min Goo LEE

IPC: G06Q10/06 ,  G06Q50/04 ,  G06Q50/06 ,  G06Q10/10 ,  G06N3/12

Abstract: An energy-saving dynamic production scheduling operation method for a parallel heat treatment process which handle processes in parallel is provided. The energy-saving dynamic production scheduling operation method includes: acquiring, by a production scheduling operation system, dynamic state information of a process of each processor; scheduling, by the production scheduling operation system, the process of each processor based on the dynamic state information; and deriving, by the production scheduling operation system, an estimated cost based on a result of generating a schedule regarding the process of each processor. Accordingly, an input sequence of heat treatment target products and a combination schedule can be optimized by reflecting dynamic state information (a product inputted to a corresponding heat treatment furnace, estimated heat treatment start and end times, cooling and heating states, etc.) of a plurality of heat treatment furnace which handle processes in parallel.

公开(公告)号：US20210068718A1

公开(公告)日：2021-03-11

申请号：US17089273

申请日：2020-11-04

Applicant: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY ,  Korea Electronics Technology Institute

Inventor： Sun Kook KIM ,  Sung Ho Lee ,  Min Goo Lee ,  Hyuk Sang Jung ,  Min Jung Kim ,  Young Ki Hong ,  Won Geun Song

IPC: A61B5/1455 ,  A61B5/0205 ,  A61B5/024

Abstract: The present invention provides a device for measuring biological information including a sensor array, wherein the sensor array includes a plurality of sensors that are either sensors for amplifying photoreactivity or sensors forming an island network connected by a plurality of multi-channels and, in the device, the average value of biological information about the skin tissues is measured based on values output from the sensor array, and a method of measuring biological information using the device.

公开(公告)号：US20210043110A1

公开(公告)日：2021-02-11

申请号：US16536151

申请日：2019-08-08

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Hye Dong JUNG ,  Sang Ki KO ,  Han Mu PARK ,  Chang Jo KIM

IPC: G09B21/00 ,  G10L25/90 ,  G10L25/63 ,  G06K9/00 ,  G10L15/22 ,  G10L15/24 ,  G06T11/00

Abstract: Disclosed is a method of providing a sign language video reflecting an appearance of a conversation partner. The method includes recognizing a speech language sentence from speech information, and recognizing an appearance image and a background image from video information. The method further comprises acquiring multiple pieces of word-joint information corresponding to the speech language sentence from joint information database, sequentially inputting the word-joint information to a deep learning neural network to generate sentence-joint information, generating a motion model on the basis of the sentence-joint information, and generating a sign language video in which the background image and the appearance image are synthesized with the motion model. The method provides a natural communication environment between a sign language user and a speech language user.

公开(公告)号：US10910968B2

公开(公告)日：2021-02-02

申请号：US16451192

申请日：2019-06-25

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Joonsung Park ,  Junhyuk Choi ,  Jinhong Kim ,  Byongjo Hyon ,  Yongsu Noh ,  Dongmyoung Joo

IPC: H03K5/00 ,  H02P6/182 ,  H02P6/10

Abstract: The present disclosure provides a motor drive device and a motor drive system for improving a control stability despite an imbalance in zero crossing points in a sensorless motor of which position of a rotor is estimated by a counter electromotive force. The motor drive device includes: a position detector configured to detect a rotational position of a rotor of a motor by detecting a plurality of zero crossing points of a counter electromotive force induced in the motor; and a controller configured to control the motor by estimating a phase change timing based on a time interval between a current zero crossing point and a previous zero crossing point of a same state as the current zero crossing point among the plurality of zero crossing points detected by the position detector.

公开(公告)号：US10898120B2

公开(公告)日：2021-01-26

申请号：US15954125

申请日：2018-04-16

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Kunnyun Kim ,  Kwang Bum Park ,  Won Hyo Kim ,  Yeon Hwa Kwak

IPC: A61B5/18 ,  G01L1/18 ,  G01L1/22 ,  A61B5/024 ,  A61B5/08 ,  A61B5/00 ,  A61B5/04 ,  G16H20/30 ,  A61B5/11

Abstract: Provided is a system for monitoring a state of a user. The system includes a chair including a backrest and a seat plate, at least one flexible tactile sensor positioned in the back plate or seat plate and configured to sense a motion of a user who sits on the chair. The system further includes a monitoring apparatus configured to monitor the state of the user based on the sensed value received from at least one flexible tactile sensor.

公开(公告)号：US10884504B2

公开(公告)日：2021-01-05

申请号：US15873786

申请日：2018-01-17

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Kunnyun Kim ,  Kwang Bum Park ,  Won Hyo Kim ,  Yeon Hwa Kwak

IPC: G06F3/01 ,  A61B5/103 ,  A61B5/00 ,  G06F3/0346

Abstract: A wearable device is disclosed. In one embodiment, the device includes: a sensor array having a plurality of sensors each detecting a physical change in epidermis of a corresponding body area and a body movement determination unit configured to determine movement of a body part based on sensing signals respectively received from the plurality of sensors.

公开(公告)号：US10810800B2

公开(公告)日：2020-10-20

申请号：US16110453

申请日：2018-08-23

Applicant: Korea Electronics Technology Institute

Inventor： Yang Keun Ahn ,  Young Choong Park

IPC: G06T19/00 ,  G06F3/01 ,  G06F3/14 ,  G06F3/147 ,  G05D1/02

Abstract: Provided is an apparatus for providing virtual reality content of a moving means, the apparatus including a plurality of transparent display units mounted on front and side surfaces of the moving means and configured to display virtual reality content, a dynamic motion sensing unit configured to detect a three-dimensional (3D) dynamic motion of the moving means, and a control unit configured to control reproduction of previously stored virtual reality content so as to display virtual reality content corresponding to the 3D dynamic motion on the plurality of transparent display units, when the 3D dynamic motion of the moving means is detected by the dynamic motion sensing unit.

公开(公告)号：US10790750B2

公开(公告)日：2020-09-29

申请号：US16117528

申请日：2018-08-30

Applicant: Korea Electronics Technology Institute

Inventor： Jin-Hong Kim ,  Joon-Sung Park ,  Jun-Hyuk Choi ,  Byong-Jo Hyon ,  Yong-Su Noh

IPC: H02M3/335 ,  H02M3/158 ,  H03K7/08 ,  H02M1/00 ,  H02M7/5387 ,  H02M7/5395

Abstract: The present disclosure provides an isolated DC-DC converter and a driving method thereof. The isolated DC-DC converter includes: a switching unit connected to terminals of a power supply, comprising three pairs of switches connected in parallel, and configured to switch on and off the three pairs of switches; a transformer unit comprising a first through third transformers, each having a primary winding connected to the switching unit and a secondary winding that are wound in a predetermined turns ratio and transforming a voltage applied to the primary winding according to the turns ratio; a post-processing unit connected to the secondary winding of each of the first through third transformers and configured to rectify and filter a voltage induced in the secondary winding to generate and output an output voltage; and a control unit connected to the switching unit and configured to control switching operation of the switching unit by providing the switching unit with carriers and reference voltages.