Patents Assigned to Foundation for Research and Business Seoul National University of Science and Technology
-
Publication number: 20230246555Abstract: Disclosed is a unitary charging device for low and high voltages. According to a specific embodiment, one leg of a switching element of an insulated DC-DC converter, the secondary side of a high voltage transformer, and the primary side of a low voltage transformer are shared, and thus the number of switching elements of the charging device and gate drivers for operating the multiple switching elements can be reduced, reliability is improved, and the performance of the unitary charging device can improve even when the number of switching elements is reduced. Due to the shared use of an EMI filter and an input capacitor of a high voltage battery, not only can the price and volume of the charging device be decreased, but conduction loss and switching loss can also be reduced to increase efficiency.Type: ApplicationFiled: February 2, 2021Publication date: August 3, 2023Applicant: FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Sewan CHOI, Gi Bum YU
-
Patent number: 11683460Abstract: 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.Type: GrantFiled: October 5, 2021Date of Patent: June 20, 2023Assignee: FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventor: Ji Hoon Yun
-
Patent number: 11656154Abstract: A method of matching a wheel and a tire includes steps of: measuring inner runout and outer runout of a wheel; extracting and setting a primary component of a measurement waveform of the inner runout as an inner runout waveform and extracting and setting a primary component of a measurement waveform of the outer runout as an outer runout waveform; comparing an inner minimum value that is a minimum value of the inner runout waveform and an outer minimum value that is the minimum value of the outer runout waveform with a predetermined runout reference value; and determining an assembly reference position of the wheel based on the inner minimum value or the outer minimum value or based on a resultant waveform of the inner runout waveform and the outer runout waveform, depending on a result of the comparing step.Type: GrantFiled: September 13, 2021Date of Patent: May 23, 2023Assignees: Hyundai Motor Company, Kia Corporation, Foundation for Research and Business, Seoul National University of Science and TechnologyInventors: Young Sam Yoon, Ji Su Park, Ki Ho Yum, Sung Dae Kim, Kyu Ho Sim
-
Patent number: 11643631Abstract: Disclosed is an in vitro exposure system that may radiate a uniform field having a constant wavefront to an experimental cell container and expose each cell container to a same electromagnetic field.Type: GrantFiled: September 19, 2018Date of Patent: May 9, 2023Assignees: Electronics and Telecommunications Research Institute, FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Young Seung Lee, Jae-Young Chung, Sang Bong Jeon
-
Patent number: 11596397Abstract: The present invention includes producing a preliminary mold (10-1 or 20-1) provided with two-dimensional patterns (111 or 211) having a shape of a microneedle array (30) therein; producing microneedle array molds (10 and 10-2 or 20 and 20-2) having a three-dimensional shape by expanding air inside the patterns (111 or 211) having a two-dimensional shape to deform the patterns (111 or 211) having the two-dimensional shape into molds having the three-dimensional shape; and after pouring a biodegradable resin into the microneedle array molds (10 and 10-2 or 20 and 20-2) and solidifying the biodegradable resin, completing the microneedle array (30) by removing the microneedle array molds (10 and 10-2 or 20 and 20-2), thereby providing a mold for production of a microneedle array and a production method of the microneedle array using the same capable of tightly suturing an affected area without inducing pain.Type: GrantFiled: November 12, 2019Date of Patent: March 7, 2023Assignee: Foundation for Research and Business, Seoul National University of Science and TechnologyInventors: Thanh-Qua Nguyen, Le Giang Tran, Woo-Tae Park
-
Patent number: 11592441Abstract: Provided is a nanoplasmonic sensor and a kit for biomolecule analysis, and a method of analyzing a biomolecule using the same. The method includes: providing the nanoplasmonic sensor including a dielectric grating extending in one direction, and a metal structure disposed to cover an upper surface and a side surface of the dielectric grating and have at least one bent portion; immobilizing a first probe molecule on a surface of the metal structure; hybridizing an analyte with the first probe molecule by introducing the analyte having a base sequence complementary to the first probe molecule; binding a second probe molecule that is hybridized with the first probe molecule to the analyte; binding an enzyme to the second probe molecule; introducing a substrate that reacts with the enzyme to produce a precipitate by an enzymatic reaction; and measuring localized surface plasmon resonance in the metal structure.Type: GrantFiled: December 11, 2018Date of Patent: February 28, 2023Assignees: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE, FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Tae Geol Lee, Hee Kyung Na, Jung Sub Wi, Jong G. OK
-
Patent number: 11575446Abstract: 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.Type: GrantFiled: April 1, 2020Date of Patent: February 7, 2023Assignee: FOUNDATION FOR RESEARCH AND BUSINESS, Seoul National University of Science and TechnologyInventor: Ill Soo Sohn
-
Patent number: 11546582Abstract: 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.Type: GrantFiled: October 18, 2021Date of Patent: January 3, 2023Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Juhyung Son, Fathan Adi Pranaya, Jinsam Kwak, Jihoon Yun
-
Patent number: 11539135Abstract: The present disclosure relates to a display apparatus including a display panel, a bezel surface formed on a boundary of the display panel, and an antenna located on the bezel surface, wherein the antenna includes a composite right left handed (CRLH) structure including a series inductor, a series capacitor, a parallel inductor, and a parallel capacitor.Type: GrantFiled: January 10, 2019Date of Patent: December 27, 2022Assignees: SAMSUNG ELECTRONICS CO., LTD., FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Gyo Nyun Kim, Chang Won Jung, Jung-Jin Kim, Dong Hoon Lee
-
Patent number: 11492073Abstract: According to one embodiment of the present invention, provided is a power assisted driving system comprising: a measurement part for measuring an operation state of a crank; a control part for determining a voltage or current necessary for power assistance on the basis of the measured value of the measurement part; a motor part, to which the voltage or current is applied, for providing driving power; and a power supply part for providing electric power to components other than itself.Type: GrantFiled: February 3, 2017Date of Patent: November 8, 2022Assignees: CHUNG-ANG UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Jung Yup Kim, Dong Jun Shin
-
Patent number: 11489184Abstract: An electrolyte including a mixture of hydroxynaphtoquinone and a precursor material thereof is provided. The electrolyte may achieve higher capacities.Type: GrantFiled: March 26, 2021Date of Patent: November 1, 2022Assignee: Foundation for Research and Business, Seoul National University of Science and TechnologyInventors: Yong Chai Kwon, Won Mi Lee, Gyun Ho Park
-
Publication number: 20220319593Abstract: Provided is a phase-change memory (PCM) module including a PCM device including a bit line and a word line, a memory controller configured to output a command related to an operation of the PCM device, and an interference mitigation part located between the memory controller and the PCM device and configured to perform a rewrite operation on the basis of a state transition characteristic of the command output from the memory controller.Type: ApplicationFiled: July 9, 2021Publication date: October 6, 2022Applicants: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Foundation for Research and Business, Seoul National University of Science and TechnologyInventors: Hyun KIM, Hyo Keun LEE, Seung Yong LEE, Hyuk Jae LEE
-
Publication number: 20220317093Abstract: The present invention relates to a scanner having a flexible probe which is an apparatus capable of being utilized for an inspection on a weld zone of a general ferrite material and a stainless material and allowing an inspection to be performed on a fitting weld zone where it is difficult for a general phased array ultrasonic testing (PAUT) probe to approach.Type: ApplicationFiled: November 18, 2020Publication date: October 6, 2022Applicants: Foundation for Research and Business, Seoul National University of Science and Technology, Korea Inspection Eng.Co.,LtdInventors: Ik Keun PARK, Yu Min CHOI, Seong Jin LIM, In Gon JUNG, Hye Jin PARK
-
Patent number: 11462266Abstract: Provided is a phase-change memory (PCM) module including a PCM device including a bit line and a word line, a memory controller configured to output a command related to an operation of the PCM device, and an interference mitigation part located between the memory controller and the PCM device and configured to perform a rewrite operation on the basis of a state transition characteristic of the command output from the memory controller.Type: GrantFiled: July 9, 2021Date of Patent: October 4, 2022Assignees: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Foundation for Research and Business, Seoul National University of Science and TechnologyInventors: Hyun Kim, Hyo Keun Lee, Seung Yong Lee, Hyuk Jae Lee
-
Patent number: 11463670Abstract: 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.Type: GrantFiled: November 14, 2020Date of Patent: October 4, 2022Assignee: FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventor: Ji Hoon Yun
-
Patent number: 11440802Abstract: The present invention relates to an electrode active material, a method for manufacturing the same, and a lithium secondary battery comprising the same. A method for producing carbide using bean curd or waste bean curd according to an embodiment of the present invention comprises the steps of: drying bean curd or waste bean curd; thermally treating the dried bean curd or waste bean curd under an air atmosphere; and carbonizing the thermally treated bean curd or waste bean curd under an inert gas atmosphere.Type: GrantFiled: May 18, 2017Date of Patent: September 13, 2022Assignee: FOUNDATION FOR RESEARCH AND BUSINESS SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Hyo Jin Ahn, Do Young Lee, Geon Hyoung An
-
Publication number: 20220207679Abstract: An image stitching method and apparatus are disclosed. The image stitching apparatus includes at least one processor and a memory. The processor may obtain a plurality of images at different viewpoints, estimate homographies of each of the plurality of images, generate an aligned image by aligning the plurality of images based on the homographies of each of the plurality of images, obtain a collective energy map by inputting the aligned image to a neural network, estimate a stitching line of the aligned image based on the collective energy map, and generate a stitched image by blending the aligned image based on the stitching line.Type: ApplicationFiled: December 22, 2021Publication date: June 30, 2022Applicant: Foundation for Research and Business, Seoul National University of Science and TechnologyInventors: Yeejin Lee, Byeongkeun Kang, Seongyeop Yang, Taeha Kim
-
Patent number: 11368730Abstract: A broadcast content transmission method includes checking input of moving caption data, configuring signaling information of the moving caption data based on signaling and description defined in a broadcast service system, configuring broadcast content data, into which the signaling information of the moving caption data is inserted, and transmitting the broadcast content data, into which the signaling information of the moving caption data is inserted.Type: GrantFiled: August 27, 2020Date of Patent: June 21, 2022Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Sung Hoon Kim, Chung Hyun Ahn, Dong Ho Kim, Bong Seok Seo, Chang Jong Hyun
-
Publication number: 20220190927Abstract: 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.Type: ApplicationFiled: April 1, 2020Publication date: June 16, 2022Applicant: FOUNDATION FOR RESEARCH AND BUSINESS, Seoul National University of Science and TechnologyInventor: Ill Soo Sohn
-
Patent number: 11356646Abstract: 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.Type: GrantFiled: January 29, 2021Date of Patent: June 7, 2022Assignee: FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Goo Man Park, Sang Joon Kim, Yu Jin Lee