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公开(公告)号：US11575446B2
公开(公告)日：2023-02-07
申请号：US17600780
申请日：2020-04-01
Applicant: FOUNDATION FOR RESEARCH AND BUSINESS, Seoul National University of Science and Technology
Inventor： Ill Soo Sohn
IPC: H04B10/54 , H04B10/077 , H04B10/524 , H04B10/67
Abstract: Disclosed are an optical signal communication method, and an optical signal transmission device and an optical signal reception device which perform the method. The optical signal communication method may comprise the steps of: receiving input data to be modulated into an optical signal, modulating the input data into the optical signal, and transmitting the optical signal to an optical signal reception device, wherein the optical signal includes a start pulse and an end pulse, and a time interval between the start pulse and the end pulse is determined on the basis of a data value of the input data.
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22.发明授权公开(公告)号：US11546582B2
公开(公告)日：2023-01-03
申请号：US17504479
申请日：2021-10-18
Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. , FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Juhyung Son , Fathan Adi Pranaya , Jinsam Kwak , Jihoon Yun
IPC: H04N19/105 , H04N19/103 , H04N19/167 , H04N19/176 , H04N19/52 , H04N19/597 , H04N19/40 , H04N19/70 , H04N13/332 , G06F3/01
Abstract: An encoding acceleration method of cloud VR (virtual reality) video, the method comprising: constructing a reference frame candidate for encoding of a current frame; selecting a specific reference frame among the reference frame candidate based on a sensor data of IMU (Inertial Measurement Unit); selecting a prediction mode for encoding the current frame based on information included in the specific reference frame; and encoding the current frame based on the selected prediction mode.
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公开(公告)号：US11463670B2
公开(公告)日：2022-10-04
申请号：US17098325
申请日：2020-11-14
Applicant: FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Ji Hoon Yun
IPC: H04N13/00 , H04N13/111 , H04N13/264 , H04N13/156 , H04N13/194 , H04N13/279
Abstract: Provided is a method for creating a virtual reality content, storing the virtual reality content in a transmission buffer, and after that, managing the transmission buffer. A server creates the virtual reality content based on user's motion information, stores the virtual reality content in the transmission buffer and is allowed to modify the virtual reality content stored in the transmission buffer based on subsequently received user's motion information, so that the most recent user's motion information can be appropriately reflected in the virtual reality content. It is possible to provide a more immersive virtual reality service.
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24.发明申请公开(公告)号：US20220232209A1
公开(公告)日：2022-07-21
申请号：US17717073
申请日：2022-04-09
Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. , FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Juhyung SON , Fathan Adi PRANAYA , Jinsam KWAK , Jihoon YUN
IPC: H04N19/105 , H04N19/167 , H04N19/52 , H04N19/597 , H04N19/176 , H04N19/103
Abstract: An encoding acceleration method of cloud VR (virtual reality) video, the method comprising: constructing a reference frame candidate for encoding of a current frame; selecting a specific reference frame among the reference frame candidate based on a sensor data of IMU (Inertial Measurement Unit); selecting a prediction mode for encoding the current frame based on information included in the specific reference frame; and encoding the current frame based on the selected prediction mode.
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公开(公告)号：US11356646B1
公开(公告)日：2022-06-07
申请号：US17162216
申请日：2021-01-29
Applicant: FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Goo Man Park , Sang Joon Kim , Yu Jin Lee
Abstract: A device for projecting an image on a surface of an object includes an extracting unit configured to extract information about a plurality of lines from an image of the object based on depth information and color information extracted from the image of the object; an image projection distortion information deriving unit configured to derive image projection distortion information about the surface of the object based on the information about the plurality of lines; and a projecting unit configured to project a content image on the surface of the object based on the derived image projection distortion information.
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Patent Agency Ranking
公开(公告)号：US20220174248A1
公开(公告)日：2022-06-02
申请号：US17162216
申请日：2021-01-29
Applicant: FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Goo Man PARK , Sang Joon KIM , Yu Jin LEE
Abstract: A device for projecting an image on a surface of an object includes an extracting unit configured to extract information about a plurality of lines from an image of the object based on depth information and color information extracted from the image of the object; an image projection distortion information deriving unit configured to derive image projection distortion information about the surface of the object based on the information about the plurality of lines; and a projecting unit configured to project a content image on the surface of the object based on the derived image projection distortion information.
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公开(公告)号：US11018349B2
公开(公告)日：2021-05-25
申请号：US15750777
申请日：2015-12-08
Applicant: FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Hyo-Jin Ahn , Geon-Hyoung An , Eun-Hwan Lee , Kyung-Won Park , Jung-In Sohn
Abstract: The present invention relates to a non-platinum catalyst for an oxygen reduction electrode, in which iron nanoparticles are dispersed in nitrogen-doped mesoporous carbon nanofibers, and the surfaces of the iron nanoparticles are at least partially exposed to the outside. In addition, the present invention relates to a method for producing a non-platinum catalyst for an oxygen reduction electrode using electrospinning and hydrogen activation reactions.
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公开(公告)号：US10944539B2
公开(公告)日：2021-03-09
申请号：US16542468
申请日：2019-08-16
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation , FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Byung Jang Jeong , Jae-Han Lim , Hwanwoong Hwang , Ji-Hoon Yun
Abstract: A backscatter communication method and apparatus based on pattern-based demodulation is disclosed. The backscatter communication method includes receiving a communication signal, and demodulating the communication signal based on a slope of the communication signal at an edge of each time interval.
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公开(公告)号：US10658930B2
公开(公告)日：2020-05-19
申请号：US16327120
申请日：2017-06-09
Applicant: DESTINPOWER INC. , FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Sewan Choi , Seongjin Oh , Yeonwoo Kim , Daeki Yang , Minho Kwon , Sehyung Jung , Byeonggill Han , Minjae Kim , Minkook Kim
Abstract: The present technique discloses a buck-boost converter. According to a detailed example of the present invention, a number of switching elements of a buck-boost converter is reduced compared with a conventional buck-boost converter, and thereby a buck mode and a boost mode are performed with reduced overall conduction loss and switching loss. In addition, a buck-boost converter that is capable of stepping up and down an input voltage over a wide range using a single control device, that has a simple structure, that has inexpensive manufacturing costs, and that has a high circuit integration density can be realized by configuring the buck-boost converter to connect a two-phase interleaving boost converter unit to a single-phase buck converter unit.
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30.发明申请公开(公告)号：US20200040149A1
公开(公告)日：2020-02-06
申请号：US16340068
申请日：2017-04-14
Applicant: Foundation for Research and Business, Seoul National University of Science and Technology
Inventor： Insup Noh , Das Dipankar , Sumi Bang
Abstract: The present invention relates to a polymer-ceramic hybrid film and a method for manufacturing same. The polymer-ceramic hybrid material according to the present invention, which is an elastic polymer-ceramic hybrid film, can maintain a film form for a long time while realizing excellent elasticity and mechanical properties at the same time, and thus can be applied as a medical material such as a patch. Also, a hydrogel used in the manufacturing process of the film can be very usefully utilized as a material for 3D printing. The mechanical strength and elasticity of the polymer-ceramic hybrid film according to the present invention can be improved by varying the arrangement of ceramic particles within the hybrid material by varying the processing process of a hybrid solution.
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