公开(公告)号：US11951394B2

公开(公告)日：2024-04-09

申请号：US17235528

申请日：2021-04-20

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Junhwan Jang ,  Woochool Park ,  Jinwook Yang ,  Sangpil Yoon ,  Minsu Choi ,  Junsuk Lee ,  Suho Song ,  Bonjae Koo

IPC: H04N23/698 ,  A63F13/5252

CPC classification number: A63F13/5252 ,  H04N23/698

Abstract: An image acquisition apparatus for acquiring an in-game 360 virtual reality (VR) image by using a plurality of virtual cameras includes a virtual camera group taking in-game images by using the plurality of virtual cameras. The image acquisition apparatus may also include a renderer generating textures for the taken images, generating a panoramic image by performing an equirectangular projection (ERP) mapping of the generated textures, and encoding the generated panoramic image. The image acquisition apparatus may further include an image generator generating a 360 VR image by combining audio information with the encoded panoramic image.

公开(公告)号：US20240111250A1

公开(公告)日：2024-04-04

申请号：US18013305

申请日：2021-12-15

Applicant: Korea Electronics Technology Institute

Inventor： Ji Soo HONG ,  Sung Hee HONG ,  Young Min KIM ,  Jin Soo JEONG ,  Byoung Hyo LEE

IPC: G03H1/04 ,  G03H1/02 ,  G03H1/22

CPC classification number: G03H1/0476 ,  G03H1/024 ,  G03H1/2249 ,  G03H2001/0224 ,  G03H2001/0232 ,  G03H2001/2263

Abstract: Provided is a hologram image normalization method for a holographic printer. In a holographic printing method according to an embodiment, generating, encoding, and normalizing for the (n+1)-th hogel are performed in parallel with loading and recording of a normalized hologram for the n-th hogel, and moving and waiting for the (n+1)-th hogel. Accordingly, a global maximum value and a global minimum value for normalization may be calculated as approximate estimation values, and a hologram generation process and a printing process may be performed in parallel, so that a total printing time may be minimized and memory usage may be optimized when holographic printing is performed.

公开(公告)号：US20240103892A1

公开(公告)日：2024-03-28

申请号：US18462721

申请日：2023-09-07

Applicant: Korea Electronics Technology Institute

Inventor： In Pyo CHO ,  Sang Yub LEE ,  Jaekyu LEE ,  Ki Won KWON

IPC: G06F9/451 ,  G06F11/34

CPC classification number: G06F9/453 ,  G06F11/3495

Abstract: Proposed is a system for managing a multi-service for smart navigation aids based on microservice architecture. The system may include a smart navigation aid integrated platform, and a main operating system (OS) that operates on the smart navigation aid integrated platform. The system may also include a lightweight virtual OS manager based on a docker engine, which operates on the main OS, a plurality of lightweight virtual OSs that operate on a container basis by the lightweight virtual OS manager. The system may further include service applications that operate to correspond to the plurality of lightweight virtual OSs, respectively.

公开(公告)号：US11922302B2

公开(公告)日：2024-03-05

申请号：US16684087

申请日：2019-11-14

Applicant: Korea Electronics Technology Institute

Inventor： Seok Hoon Jeon ,  Byung Soo Kim ,  Hee Tak Kim ,  Tae Ho Hwang

IPC: G06N3/08 ,  G06N3/049 ,  G06N3/082 ,  G06N3/084

CPC classification number: G06N3/08 ,  G06N3/049 ,  G06N3/082 ,  G06N3/084

Abstract: Provided are a hyperparameter optimizer and method for optimizing hyperparameters and a spiking neural network processing unit. The optimizer includes a statistical analyzer configured to receive training data and perform statistical analysis on the training data, an objective function generator configured to generate hyperparameter-specific objective functions by using a statistical analysis value of the statistical analyzer, and an optimal hyperparameter selector configured to select optimal hyperparameters according to certain rules on the basis of the hyperparameter-specific objective functions.

公开(公告)号：US11921080B2

公开(公告)日：2024-03-05

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

CPC classification number: G01N27/4141

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：US20240011784A1

公开(公告)日：2024-01-11

申请号：US18251835

申请日：2020-11-18

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Changwoo KIM ,  Hyosub CHOI

IPC: G01C21/34

CPC classification number: G01C21/3492 ,  G01C21/3461

Abstract: A device for extracting operation information about a connected car is proposed. The device may include an outlier remover removing outliers from speed data in which the speed of a vehicle is measured at every predetermined time interval and stored, and from accumulated travel section data in which the section traveled by the vehicle is accumulatively stored at every predetermined time interval; The device may also include a travel section extractor extracting the section in which the vehicle has traveled, based on the speed data and the accumulated travel section data from which the outliers were removed. The device may further include a stop section extractor extracting a stop section in which the vehicle has stopped; and a pure travel section extractor extracting, as a pure travel section, a section in which the stop section present in the travel section is excluded from the travel section.

公开(公告)号：US11864412B2

公开(公告)日：2024-01-02

申请号：US17128850

申请日：2020-12-21

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Soon Hyung Kwon

IPC: H10K50/844

CPC classification number: H10K50/844

Abstract: This application relates to a method for manufacturing a hybrid moisture barrier layer. In one aspect, the method includes preparing a base film and applying a photo-curable or heat-curable solution material to the base film, followed by photocuring or thermal curing to deposit at least one first moisture barrier layer. The method also includes depositing at least one second moisture barrier layer on the base film through atomic layer deposition (ALD), the second moisture layer being ⅓ to ½ the total thickness of the first moisture barrier. According to various embodiments, a combination of a moisture barrier layer formed by applying the photo-curable or heat-curable solution and a moisture barrier layer formed by atomic layer deposition at an effective thickness ratio brings about an effective reduction in production lead time as well as an improvement in the reliability of moisture barrier effect.

公开(公告)号：US20230415422A1

公开(公告)日：2023-12-28

申请号：US18038846

申请日：2021-11-03

Applicant: Korea Electronics Technology Institute

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

IPC: B29C64/40 ,  B29C64/124 ,  B33Y10/00 ,  B29C64/386 ,  B33Y50/00

CPC classification number: B29C64/40 ,  B29C64/124 ,  B33Y10/00 ,  B29C64/386 ,  B33Y50/00

Abstract: Provided is a method for generating an auxiliary support for 3D printing output stability in bottom-up stacking manufacturing. The method for generating an auxiliary support, according to an embodiment of the present invention, comprises the steps of: slicing a 3D model into a plurality of 2D layers; calculating the position of an auxiliary support on the basis of the width of the sliced 2D layers; and generating an auxiliary support on the basis of the calculation result. Therefore, output stability can be increased by automatically generating the position and size of the auxiliary support so that the separation force of a stacked surface is uniform.

公开(公告)号：US11847785B2

公开(公告)日：2023-12-19

申请号：US17451065

申请日：2021-10-15

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Yun Ju Lee ,  Suk Woo Jung ,  Kyung Taek Lee

IPC: G06T7/246 ,  G01C21/16

CPC classification number: G06T7/248 ,  G01C21/1656

Abstract: This application relates to a location tracking device and method using a feature matching. The location tracking device may include a sensor, a camera, and a controller. The sensor is provided in a predetermined object and collects sensing information including at least one of speed, direction, gravity, and acceleration of the object. The camera is provided in the predetermined object and collects image information by capturing an image. The controller calculates an initial fundamental matrix (F0) by using the collected sensing information and calibration information of the camera, detects feature points of the image information, performs a feature matching in a fundamental matrix (F) by combining the initial fundamental matrix and the feature points, and tracks a location of the object by using a result of the feature matching.

公开(公告)号：US11802849B2

公开(公告)日：2023-10-31

申请号：US17709567

申请日：2022-03-31

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Dae Sung Lee ,  Kwang Bum Park

IPC: G01N27/66

CPC classification number: G01N27/66

Abstract: Disclosed is a photoionization gas sensor including an ultraviolet generating module having a first substrate, a second substrate, and a third substrate sequentially coupled in a vertical direction, and configured to generate ultraviolet by applying an electric field to a noble gas filling a first cavity, the first cavity formed in a central portion of the second substrate, and a measuring module configured to collect an electrical signal, the electrical signal being generated such that an electric field is applied to a passage, through which gas ionized by ultraviolet passes, so as to allow the ionized gas to come into contact with an electrode, thereby having a small volume and being operated at a low voltage.