公开(公告)号：US20220271749A1

公开(公告)日：2022-08-25

申请号：US17623040

申请日：2019-12-12

Applicant: Korea Electronics Technology Institute

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

IPC: H03K17/693 ,  H03K17/687

Abstract: Provided is a switch having a structure having an excellent isolation characteristic even without a limiter in an ultrahigh frequency hand used for a military component. A switch according to an embodiment of the present invention comprises: multiple transistors which are connected in parallel to a path from an input terminal toward an output terminal and perform switching; and a first transmission line provided between the input terminal and a node on a path to which a first transistor is connected. By the present invention, switching can be performed in an ultrahigh frequency such as W-band while a GaN transistor is used, an insertion loss is low, an isolation characteristic is excellent, and eventually efficiency of an ultrahigh frequency circuit can be further enhanced.

公开(公告)号：US20220172404A1

公开(公告)日：2022-06-02

申请号：US17233195

申请日：2021-04-16

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Yong Hwan KIM ,  Jieon KIM ,  JinGang HUH ,  Jong-geun PARK

IPC: G06T9/00 ,  G06T3/40 ,  H03M7/30

Abstract: The present disclosure relates to an apparatus and method for fast refining segmentation for a V-PCC encoder. The apparatus may include a grid segmentation unit segmenting a coordinate space of a point cloud into grid units, and an edge cube search unit searching a cube containing one or more points among the cubes segmented into grid units and containing a segment boundary. The apparatus may also include a surrounding cube search unit searching an edge surrounding cube containing one or more points within a predetermined range from the edge cube, and a smooth score calculation unit calculating smooth scores for all the edge surrounding cubes and all the edge cubes. The apparatus may further include a projection plane index update unit obtaining a normal score based on the calculated smooth scores and updating a projection plane index of each point in the edge cube using the normal score.

公开(公告)号：US11347504B2

公开(公告)日：2022-05-31

申请号：US17137003

申请日：2020-12-29

Applicant: Korea Electronics Technology Institute

Inventor： Byung Soo Kim ,  Young Jong Jang ,  Young Kyu Kim

IPC: G06F9/30 ,  G06F9/38 ,  G06F9/448

Abstract: This application relates to a memory management method for maximizing processing-in-memory (PIM) performance and reducing unnecessary DRAM access time. In one aspect, when processing a PIM instruction packet, an instruction processing unit secondarily processes a request for access to a destination address at which read and write actions of an internal memory are likely to be sequentially performed. By secondarily requesting the destination address, a row address of an open page of the internal memory may match a row address to which a PIM instruction packet processing result is written back. Also, the instruction processing unit inside the PIM maintains memory write and read addresses that have previously requested. The instruction processing unit compares the address of a packet to be processed to the maintained previous memory address and informs a memory controller about the comparison result through a page closing signal.

公开(公告)号：US20220146928A1

公开(公告)日：2022-05-12

申请号：US17454377

申请日：2021-11-10

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Hyeong Keun KIM ,  Seul Gi KIM ,  Hyun Mi KIM ,  Hye Young KIM

IPC: G03F1/64 ,  C01B32/182 ,  G03F7/20

Abstract: This application relates to a method for direct growth of multilayer graphene used as a core layer of a pellicle for extreme ultraviolet lithography. This application also relates to a method for manufacturing the pellicle for extreme ultraviolet lithography by using the multilayer graphene direct growth method. The multilayer graphene direct growth method may include forming few-layer graphene on a silicon nitride substrate, forming a metal catalyst layer on the few-layer graphene, and forming an amorphous carbon layer on the metal catalyst layer. The method may also include directly growing multilayer graphene from the few-layer graphene used as a seed layer by interlayer exchange between the metal catalyst layer and the amorphous carbon layer through heat treatment.

公开(公告)号：US20220119936A1

公开(公告)日：2022-04-21

申请号：US17505710

申请日：2021-10-20

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Sungmin HONG ,  Hyungman LEE

IPC: C23C14/06 ,  C23C14/34 ,  H01L41/316 ,  G01N29/24

Abstract: A method of depositing an AlN thin film according to an embodiment of the disclosure comprises: a step of forming an insulating layer on a base substrate; and a step of depositing an AlN thin film on the insulating layer through a sputtering process, wherein the step of depositing the AlN thin film is performed through a continuous deposition type, at lower than a CMOS-compatible process temperature and in a state of applying a bias positive voltage to the base substrate such that the AlN thin film has an adjustable deposition thickness. Therefore, an embodiment of the disclosure is advantageous in that an AlN thin film having excellent piezo characteristics can be obtained at a low process temperature compatible with a CMOS process.

公开(公告)号：US20220085736A1

公开(公告)日：2022-03-17

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

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：US20220077381A1

公开(公告)日：2022-03-10

申请号：US17468404

申请日：2021-09-07

Applicant: Korea Electronics Technology Institute

Inventor： Myong Jae YOO ,  Hyung Won KANG ,  Seung Ho HAN

IPC: H01L41/332 ,  H01L41/047 ,  H01L41/187 ,  H01L41/29 ,  H01L41/43 ,  B23K26/352 ,  B23K26/0622 ,  B23K26/00

Abstract: A method of forming an electrode in a ceramic transducer electronic component is provided. The method includes preparing a sintered body for a ceramic transducer containing a metal oxide, performing patterning by irradiating a laser on a surface of the sintered body for a ceramic transducer, and forming a metal electrode by performing an electroless plating process on the sintered body for a ceramic transducer on which the patterning is formed, wherein, in the performing of the patterning by irradiating the laser on the surface of the sintered body for a ceramic transducer, the patterning is performed by irradiating the laser that satisfies at least one of a predetermined power condition and a predetermined processing speed condition.

公开(公告)号：US11115639B2

公开(公告)日：2021-09-07

申请号：US16198562

申请日：2018-11-21

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Woochool Park ,  Junhwan Jang ,  Younghwa Kim ,  Jinwook Yang ,  Sangpil Yoon ,  Hyunwook Kim ,  Eunkyung Cho ,  Minsu Choi ,  Junsuk Lee ,  Jaeyoung Yang

IPC: H04N13/133 ,  H04N5/247 ,  G06T3/40 ,  H04N5/232 ,  H04N13/246

Abstract: The described technology provides a system and method of generating a 360-degree panoramic virtual reality (VR) image by using a plurality of photograph images. A plurality of image capturing devices capture and transmit the plurality of photograph images, respectively. An image conversion device receives the plurality of photograph images from the plurality of image capturing devices, calibrates each of the plurality of photograph images using characteristic information of respective one of the plurality of image capturing devices, and stitches calibrated photograph images to generate the 360-degree panoramic VR image. According to embodiments, the user can check a situation of a monitoring area while changing the viewpoint of the 360-degree panoramic VR image or enjoy the generated VR contents at a high degree of immersion.

公开(公告)号：US20210257169A1

公开(公告)日：2021-08-19

申请号：US17129090

申请日：2020-12-21

Applicant: Korea Electronics Technology Institute

Inventor： Sang Yub Lee ,  Jae Kyu Lee

IPC: H01H13/14 ,  G06F1/3234 ,  G06F1/3231 ,  H03K17/97 ,  B60K35/00 ,  H02S40/38 ,  H02S40/20

Abstract: This application relates to a mechanical button apparatus that includes a body where an upper portion thereof is closed and a lower portion thereof is opened and a bottom plate attached on a display screen of a display apparatus to cover the opened lower portion. The body includes an aperture member including a wing set expanded or contracted in a rotation direction of the body. The body also includes a photovoltaic (PV) cell array substrate including a PV cell configured to generate power for charging a battery and an optical sensor configured to convert light signals, reflected by the expanded or contracted wing set, into electrical signals. The body further includes a circuit substrate configured to operate with the power charged into the battery, calculate number of rotation manipulations of the body by using the electrical signals, and transmit the calculated number of rotation manipulations to the display apparatus.

公开(公告)号：US11090501B2

公开(公告)日：2021-08-17

申请号：US16209400

申请日：2018-12-04

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Hyun Moon Park ,  Dong Sun Kim ,  Tae Ho Hwang

IPC: A61N1/37 ,  A61N1/378 ,  H02N2/18 ,  A61N1/375

Abstract: A heart pacemaker according to the present invention includes a generator configured to generate nonlinear electrical energy using a friction element and an energy harvester configured to sequentially store the generated nonlinear electrical energy in multi-stage multiple energy storages and supply the electrical energy stored in the multiple energy storages.