公开(公告)号：US11817798B2

公开(公告)日：2023-11-14

申请号：US17456833

申请日：2021-11-29

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Hyun Moon Park ,  Byung Soo Kim ,  Tae Ho Hwang

IPC: H02N1/04

CPC classification number: H02N1/04

Abstract: This application relates to a frictional electricity generator increasing output transfer efficiency. In one aspect, the frictional electricity generator includes a housing and a power generation element which is arranged in the housing and in which a + position pole and a − position pole are arranged according to the movement of a positive charge and a negative charge by friction. The + position pole and the − position pole of the power generation element may be arranged at a distance of a predetermined angle on a plane so as to minimize energy loss due to mutual repulsion, and may be connected to each transmission path.

公开(公告)号：US20230256677A1

公开(公告)日：2023-08-17

申请号：US17623112

申请日：2021-11-03

Applicant: Korea Electronics Technology Institute

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

IPC: B29C64/393 ,  G06T19/20 ,  B33Y50/02

CPC classification number: B29C64/393 ,  G06T19/20 ,  B33Y50/02 ,  G06T2219/008

Abstract: Provided are a method and a system for solving a tolerance problem which may occur in a slicing quantization (staircase effect) process of 3D printing which slices a 3D model and laminates layers one by one. According to an embodiment of the present disclosure, a 3D model slicing method includes the steps of: receiving, by a 3D model slicing system, an input of data of a 3D model to 3D print; examining, by the 3D model slicing system, a dimension of a layer thickness of the inputted 3D model; correcting, by the 3D model slicing system, a size of a layer for slicing, based on a result of the examining; and slicing, by the 3D model slicing system, the corrected 3D model. Accordingly, by preserving a dimension within a layer thickness, a problem that a concavo-convex portion is lost in a slicing quantization process of 3D printing according to a slicing position within a layer thickness, and a tolerance occurs is solved.

公开(公告)号：US20230245259A1

公开(公告)日：2023-08-03

申请号：US17768528

申请日：2019-10-15

Applicant: Korea Electronics Technology Institute

Inventor： Sung Hee HONG ,  Young Min KIM ,  Ji Soo HONG

IPC: G06T1/00 ,  H04N1/32

CPC classification number: G06T1/0021 ,  H04N1/3224 ,  G06T2201/0051

Abstract: Provided is a method for inserting a copyright information indication as a means for protecting the copyright of LF content which can be played back as multi-viewpoint images, wherein the copyright information indication is only inserted in images of a specific viewpoint. A method for generating multi-viewpoint images according to an embodiment of the present invention includes the steps of: generating multi-viewpoint images; inserting a specific information indication in images of a specific viewpoint among the generated multi-viewpoint images; and storing the multi-viewpoint images in which the specific information indication has been inserted. Accordingly, the copyright of LF content, which are expensive multi-viewpoint images, can be protected by inserting the copyright information indication only in the images of the specific viewpoint.

公开(公告)号：US20230196841A1

公开(公告)日：2023-06-22

申请号：US18073058

申请日：2022-12-01

Applicant: Korea Electronics Technology Institute

Inventor： Kyoung Won MIN ,  Ganzorig GANKHUYAG ,  Haeng Seon SON ,  Seon Young LEE ,  Young Bo SHIM ,  Chang Gue PARK

IPC: G06V40/20 ,  G06V10/40 ,  G06V10/22

CPC classification number: G06V40/28 ,  G06V10/22 ,  G06V10/40

Abstract: There are provided a behavior recognition method for efficient recognition of hand signals and gesture and a behavior recognition AI network system using the same. The behavior recognition method for efficient recognition of hand signals and gestures according to an embodiment includes: an input feature extraction step of extracting, by a behavior recognition AI network system, key points F1 from bounding box data of an object which makes hand signals to be inputted by sequence, and generating skeleton data of the object; and a spatial feature extraction step of calculating, by the behavior recognition AI network system, a length F2 and an angle F3 of a bone vector based on the key points F1 and the skeleton data, and extracting a spatial feature. Accordingly, performance of recognition of hand signals and gestures may be enhanced.

公开(公告)号：US20230171335A1

公开(公告)日：2023-06-01

申请号：US17877194

申请日：2022-07-29

Applicant: Korea Electronics Technology Institute

Inventor： Soo Chang CHAE ,  Ki Jin KIM ,  Kwang Ho AHN

IPC: H04M1/02 ,  H01Q3/22 ,  G01R29/08

CPC classification number: H04M1/026 ,  H01Q3/22 ,  G01R29/08 ,  H01Q1/2283

Abstract: There is provided a self-diagnostic apparatus of a magnetic coupling type. The self-diagnostic apparatus according to an embodiment includes: a signal detection line which is magnetic-coupled with an RF signal line through a magnetic coupling loop; and a signal detector configured to detect a size and a phase of an RF signal by detecting a current flowing through the signal detection line. Accordingly, the apparatus grasps and diagnoses respective operation states of channels by itself in a beamforming system, without increasing and a size of the system and degrading performance.

公开(公告)号：US20230157603A1

公开(公告)日：2023-05-25

申请号：US17569310

申请日：2022-01-05

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Kyu Sik SHIN ,  Yeon Hwa KWAK ,  Cheol Ung CHA

IPC: A61B5/20 ,  A61B5/00

CPC classification number: A61B5/205 ,  A61B5/6852 ,  A61B5/4381 ,  A61B2562/0247 ,  A61M25/0017

Abstract: This application relates to a pressure sensor array for urodynamic testing capable of simultaneously measuring bladder pressure, prostate pressure, and urethral pressure, and to a test apparatus including the pressure sensor array. In one aspect, the pressure sensor array for urodynamic testing is installed in a catheter and includes a base substrate having flexibility.
The pressure sensor array may also include a bladder pressure sensor formed on a portion of the base substrate to be positioned in bladder and measuring bladder pressure. The pressure sensor array may further include a prostate pressure sensor formed on a portion of the base substrate to be positioned in prostate and measuring prostate pressure. The pressure sensor array may further include a urethral pressure sensor formed on a portion of the base substrate to be positioned in urethra and measuring urethral pressure.

公开(公告)号：US20230073404A1

公开(公告)日：2023-03-09

申请号：US18049991

申请日：2022-10-26

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Won Hyo KIM ,  Woo Kyeong SEONG ,  Kook Nyung LEE ,  Su Mi YOON ,  Dong Ki HONG ,  Young Joo KIM ,  Hye Lim KANG

IPC: G06F3/041

Abstract: A pressure sensor is proposed. The pressure sensor may include a base substrate, and at least one sensing electrode formed on the base substrate. The pressure sensor may also include an electrode wire electrically connected to one side of the sensing electrode, extending on the base substrate, and formed at one side of a power connection part. The pressure sensor may further include an insulative adhesive layer coated on a region of the base substrate other than a region on which the sensing electrode is formed. The pressure sensor may further include a resistant substrate which is stacked on and coupled to the base substrate by the adhesive layer and on one surface of which a resistor is formed to be spaced apart from and face the sensing electrode in a stacking direction. According to embodiments, it is possible to effectively achieve flexible response of a pressure sensor for external pressure.

公开(公告)号：US11592532B2

公开(公告)日：2023-02-28

申请号：US16460203

申请日：2019-07-02

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Hyunyong Choi ,  Hyun chang Cho

IPC: G01S7/481 ,  G01S7/484 ,  G01S17/89 ,  G02B26/10

Abstract: In one embodiment, an integrated light transmission/reception optical system module includes a light receiving lens, a light source, and a light transmitting mirror. The light receiving lens receives light, concentrates the received light on a light detector disposed at a rear position, and has an optical path groove formed to be directed from a circumference to a central portion and formed to expose a front side. The light source outputs a pulse laser along the optical path groove from the circumference of the light receiving lens toward the central portion of the light receiving lens. The light transmitting mirror is disposed within the optical path groove, is located on a path of the pulse laser, and reflects in a front direction the pulse laser outputted from the light source. Other embodiments are also possible.

公开(公告)号：US20230047713A1

公开(公告)日：2023-02-16

申请号：US17622952

申请日：2020-12-02

Applicant: Korea Electronics Technology Institute

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

IPC: G03H1/04 ,  G03H1/02 ,  G03H1/12

Abstract: Provided are a method and an apparatus for printing a hologram by using a mask. The hologram printing method according to an embodiment generates a hologram fringe pattern, splits the hologram fringe pattern on a hogel basis, generates the split hogels, masks a part of the generated hogel, and prints the masked hogel on a hologram medium. Accordingly, an empty space which occurs between hogels when a hologram is printed is prevented from being generated by using a mask, so that a fill factor can be effectively enhanced, and eventually, image quality of a hologram can be enhanced.

公开(公告)号：US11579962B2

公开(公告)日：2023-02-14

申请号：US17349548

申请日：2021-06-16

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Minyoung Jung ,  Saim Shin ,  Jinyea Jang ,  Hyeontae Seo

IPC: G06F11/00 ,  G06F11/07 ,  G06N3/04 ,  G06N3/08 ,  G06F11/36 ,  G06F8/41

Abstract: This application relates to a computing system and method for an automated program error repair. In one aspect, the computing system includes a storage, a preprocessing processor, and an automated error repair processor. The storage stores a program code. The preprocessing processor acquires the program code from the storage and preprocesses the program code. Preprocessing includes tokenizing the program code with tokens, converting the tokens into vectors, and adding location information for the tokens. The automated error repair processor receives the preprocessed program code as an input from the preprocessing processor, detects an error in the preprocessed program code, corrects the detected error, and outputs the error-corrected program code. Detecting and correcting the error are performed based on a deep learning result and the location information for the tokens.