公开(公告)号：US20210302577A1

公开(公告)日：2021-09-30

申请号：US16839277

申请日：2020-04-03

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyo-Hoon PARK ,  Hyeonho YOON ,  Nam-Hyun KWON ,  Kyeongjin HAN ,  Hyun-Woo RHEE ,  Geum-Bong KANG

IPC: G01S17/32 ,  G01S7/481 ,  G01S7/4913

Abstract: A silicon phased array based LiDAR device that measures a distance using a quasi-frequency modulation is disclosed. A LiDAR device according to an exemplary embodiment of the inventive concept includes a light source that generates an optical signal, an optical modulator that generates a first optical signal having a quasi-frequency whose a modulation frequency constantly varies with time by modulating a light intensity of the optical signal, an optical splitter that splits optical power of the first optical signal into a reference optical signal and a transmit (Tx) optical signal, an optical transmitter that receives and emits the Tx optical signal toward an object, an optical receiver that receives a receive (Rx) optical signal reflected from the object and transfers the Rx optical signal, an optical coupler that mixes the reference optical signal and the Rx optical signal, a balanced photodetector that detects an intermediate frequency from the optical signal transferred from the optical coupler and a distance calculator that obtains distance information by measuring the intermediate frequency.

公开(公告)号：US20210288303A1

公开(公告)日：2021-09-16

申请号：US17133819

申请日：2020-12-24

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hee-Tak KIM ,  Juhyuk LEE

IPC: H01M4/04 ,  H01M10/054 ,  H01M4/583 ,  H01M4/133 ,  H01M4/1393

Abstract: Disclosed are an electrode for secondary batteries containing a high-density carbon defect structure and a method of producing the same. The electrode can prevent deterioration of battery performance due to dendrite formation by inhibiting self-diffusion and aggregation of metal nuclei, and can exhibit an unprecedentedly high number of charge/discharge cycles and excellent energy efficiency by uniformly electrodepositing metal ions on the surface of the electrode. When the method of producing a carbon electrode for a secondary battery is used, an electrode containing a high-density carbon defect structure can be produced, and thus a battery with higher efficiency and a longer lifespan can be produced. The secondary battery comprising the electrode is useful for fields related to medium/large-scale energy storage technology, in particular, for mobile devices, automobile batteries, and renewable-energy power generation systems.

公开(公告)号：US20210280739A1

公开(公告)日：2021-09-09

申请号：US17182015

申请日：2021-02-22

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Sanghyeon KIM ,  Juhyuk PARK ,  DaeMyeong GEUM

IPC: H01L33/04 ,  H01L33/30 ,  H01L27/15 ,  H01L33/00

Abstract: Various embodiments may provide a highly efficient micro light-emitting diode (LED) in a low current range, a method of fabricating the same, and a display including the same. The micro LED includes a first conductive type semiconductor layer and a second conductive type semiconductor layer and an active layer disposed between the first conductive type semiconductor layer and the second conductive type semiconductor layer and having a single quantum well structure. The single quantum well structure may be formed so that a ratio of a conduction band offset of any one of the first conductive type semiconductor layer or the second conductive type semiconductor layer and a valence band offset of the other of the first conductive type semiconductor layer or the second conductive type semiconductor layer becomes greater than 0 and less than 1.

公开(公告)号：US20210280365A1

公开(公告)日：2021-09-09

申请号：US17189788

申请日：2021-03-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  Korea Advanced Institute of Science and Technology

Inventor： Jang Yeol KIM ,  In Kui CHO ,  HYUNJOON LEE ,  Sang-Won KIM ,  Seong-Min KIM ,  Jung Ick MOON ,  Woo Cheon PARK ,  Je Hoon YUN ,  Jaewoo LEE ,  Ho Jin LEE ,  Dong Won JANG ,  Kibeom KIM ,  Seungyoung AHN

IPC: H01F27/32 ,  H01F27/24 ,  H01F41/04 ,  H01F27/28 ,  G01R33/02

Abstract: A radio frequency (RF) weak magnetic field detection sensor includes a ferromagnetic core, a pickup coil disposed to surround the ferromagnetic core, a substrate that includes an opening, a core pad connected to the ferromagnetic core and a coil pad connected to the pickup coil, and an insulating tube interposed between the ferromagnetic core and the pickup coil. The insulating tube includes a bobbin around which the pickup coil is wound, and a core hole formed to pass through the bobbin and configured to accommodate the ferromagnetic core.

公开(公告)号：US20210278282A1

公开(公告)日：2021-09-09

申请号：US17328773

申请日：2021-05-24

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong-Kwon LEE ,  Jae-Sub OH ,  Jongcheol PARK

IPC: G01J5/58 ,  G01J5/08 ,  G01J5/02 ,  B81B7/02

Abstract: A MEMS device according to an example embodiment of the present disclosure includes: a lower substrate; an infrared sensor formed on the lower substrate; and a lower bonding pad disposed to cover the infrared sensor. The infrared sensor includes: a metal pad formed on an upper surface of the lower substrate and electrically connected to a detection circuit; a reflective layer formed on the upper surface of the lower substrate and reflecting an infrared band; an absorption plate disposed to be spaced apart from an upper portion of the reflective layer and absorbing infrared rays to change resistance; and an anchor formed on the metal pad to support the absorption plate and to electrically connect the metal pad and the absorption plate to each other. The reflective layer has a curved or stepped shape such that a distance between the reflective layer and the absorption plate varies depending on a position of the reflective layer.

公开(公告)号：US11113211B2

公开(公告)日：2021-09-07

申请号：US16574425

申请日：2019-09-18

Applicant: SK hynix Inc. ,  Korea Advanced Institute of Science and Technology

Inventor： Wongyu Shin ,  Leesup Kim ,  Youngsuk Moon ,  Yongkee Kwon ,  Jaemin Jang

IPC: G06F13/16 ,  G06F12/02 ,  G06F3/06 ,  G06F13/36 ,  G06F12/06

Abstract: A memory system may include: a memory controller; a plurality of ranks; and a rank shared bus configured to couple the memory controller and the plurality of ranks. Each of the plurality of ranks may include: a plurality of banks; a rank bus coupled to the plurality of banks and configured to selectively transmit data to the rank shared bus or an intermediate buffer and selectively receive data from the rank shared bus or the intermediate buffer; and an intermediate buffer configured to be selectively coupled to the rank bus or the rank shared bus, according to a first signal from the memory controller.

公开(公告)号：US11100617B2

公开(公告)日：2021-08-24

申请号：US16599590

申请日：2019-10-11

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Jean-Charles Bazin ,  Rae Hyuk Jung ,  Seung Joon Lee

IPC: G06T5/00 ,  G06N3/08 ,  G06N3/04 ,  G06T3/60 ,  G06N3/00

Abstract: Proposed are a deep learning method and apparatus for the automatic upright rectification of VR content. The deep learning method for the automatic upright rectification of VR content according to an embodiment may include inputting a VR image, to a neural network and outputting orientation information of the VR image through a trained neural network.

公开(公告)号：US20210255942A1

公开(公告)日：2021-08-19

申请号：US17166417

申请日：2021-02-03

Applicant: MemRay Corporation ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Myoungsoo JUNG ,  Miryeong KWON ,  Gyuyoung PARK ,  SangWon LEE

IPC: G06F11/30 ,  G06F11/14 ,  G06F1/28 ,  G06F1/30 ,  G06F9/30 ,  G06F9/48 ,  G06F12/02

Abstract: A method of supporting persistence of a computing device is provided. The computing device performs a stop procedure upon power failure. In the stop procedure, the computing device schedules out a running process task, stores a state of the process task to a process control block of a memory module including a non-volatile memory, flushes a cache for the processor, and flushes a pending memory request.

公开(公告)号：US20210249675A1

公开(公告)日：2021-08-12

申请号：US17173559

申请日：2021-02-11

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hee-Tak KIM ,  Jonghyun HYUN

IPC: H01M8/1041 ,  H01M8/103 ,  H01M8/1081 ,  H01M8/1086 ,  H01F1/00

Abstract: Provided is an ion-conducting layer including: an ion conductive matrix; and a 1D composite dispersed in the ion conductive matrix and oriented in a membrane thickness direction, in which the 1D composite includes a core of a non-conductive 1D nanostructure; an intermediate layer enclosing the core and having magnetic nanoparticles bonded to a surface thereof; and a surface layer conducting the same kind of ions as ions in the matrix.

公开(公告)号：US11085982B1

公开(公告)日：2021-08-10

申请号：US16537194

申请日：2019-08-09

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyun Wook Park ,  Byung Jai Kim

IPC: G01R33/56 ,  G01R33/561

Abstract: Disclosed is an image acquisition method and apparatus using a parallel scheme of radio frequency irradiation and data acquisition. The image acquisition method includes saturating a labile proton by radiating a first radio frequency (RF) pulse signal to an object, generating a proton signal by radiating a pulse sequence signal to the object, and obtaining a chemical exchange saturation transfer (CEST) image of the object, and the generating and the obtaining of which are repeatedly performed in parallel.