Patents Assigned to SNU R&DB Foundation
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Publication number: 20200293886Abstract: An authentication method and apparatus using a transformation model are disclosed. The authentication method includes generating, at a first apparatus, a first enrolled feature based on a first feature extractor, obtaining a second enrolled feature to which the first enrolled feature is transformed, determining an input feature by extracting a feature from input data with a second feature extractor different from the first feature extractor, and performing an authentication based on the second enrolled feature and the input feature.Type: ApplicationFiled: March 6, 2020Publication date: September 17, 2020Applicants: SAMSUNG ELECTRONICS CO., LTD., SNU R&DB FOUNDATIONInventors: Seungju HAN, Jaejoon HAN, Minsu KO, Chang Kyu CHOI, Bohyung HAN
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Patent number: 10725082Abstract: One embodiment provides a technique of adjusting a gate voltage to be applied to at least one MOS capacitor and an amount of electric charges to be stored in the MOS capacitor so as to determine a sensitivity of a change in the amount of electric charges stored in the MOS capacitor, and exposing the MOS capacitor to an electric filed for a predetermined amount of time and then reading an electron inflow or outflow result due to the electric field so as to interpret the intensity and the direction of the electric field, thereby measuring the intensity and the direction of the electric field.Type: GrantFiled: July 12, 2017Date of Patent: July 28, 2020Assignee: SNU R&DB FOUNDATIONInventors: Sang Lyul Min, Yong Hun Lee
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Patent number: 10702642Abstract: The present invention relates to a blood pump. The blood pump according to the present invention includes: a housing including an inlet, through which blood flows, at an upper part of the housing and an outlet, through which the blood is discharged, along an edge of the housing; an impeller part, which is rotatable and disposed inside the housing, including a plurality of blades on the surface thereof so as to move the blood flowing in through the inlet toward the outlet by using a centrifugal force; a rotary shaft member disposed to penetrate the center part of the impeller part so as to support the impeller part to be rotatable which moves the blood to the lower part thereof; and a magnetic body disposed on the impeller part for rotating the impeller part in a predetermined direction according to a change in a magnetic field outside the housing.Type: GrantFiled: March 20, 2017Date of Patent: July 7, 2020Assignee: SNU R&DB FOUNDATIONInventors: Jung Chan Lee, Hee Chan Kim
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Publication number: 20200154199Abstract: Disclosed is a sound data processing system including a plurality of sound collecting terminals and a server. Each of the plurality of sound collecting terminals includes: a sound collecting means that collects a sound and has an orientation direction, and a communication module that transmits sound data corresponding to the sound collected by the sound collecting means and supplementary data including position data of a position of a corresponding sound collecting terminal and orientation direction data corresponding to the orientation direction of the sound collecting means via a network. The server receives the sound data and the supplementary data transmitted by the plurality of sound collecting terminals through the network and determines a position of a source that emits the sound collected by the sound collecting means on the basis of the sound data and the supplementary data.Type: ApplicationFiled: January 13, 2020Publication date: May 14, 2020Applicant: SNU R&DB FOUNDATIONInventors: Suhwan KIM, Seyun KIM, Minjae KIM
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Patent number: 10642024Abstract: An electrowetting device which includes a polarizable liquid; and a nonpolar solution separated from the polarizable liquid by an interface. The polarizable liquid may include a polar solvent, an organic acid, and ammonium hydroxide having at least one alkyl group.Type: GrantFiled: March 27, 2015Date of Patent: May 5, 2020Assignees: SAMSUNG ELECTRONICS CO., LTD., SNU R&DB FOUNDATIONInventors: Kyuhwan Choi, Jungmok Bae, Yongjoo Kwon, Yunhee Kim, Taekdong Chung, Yoonsun Choi
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Patent number: 10636844Abstract: Provided is an organic photoelectronic device including a first light-transmitting electrode positioned at a light incidence side, a second light-transmitting electrode facing the first light-transmitting electrode, a photoactive layer positioned between the first light-transmitting electrode and the second light-transmitting electrode and selectively absorbing light in a given (or, alternatively, desired or predetermined) wavelength region, and a selective light transmittance layer positioned between the first light-transmitting electrode and the photoactive layer, between the second light-transmitting electrode and the photoactive layer, or between the first light-transmitting electrode and the photoactive layer and between the second light-transmitting electrode and the photoactive layer and increasing transmittance of the light in a wavelength region other than the given (or, alternatively, desired or predetermined) wavelength region absorbed by the photoactive layer, and an electronic device including thType: GrantFiled: January 18, 2019Date of Patent: April 28, 2020Assignees: Samsung Electronics Co., Ltd., SNU R&DB FoundationInventors: Kyu Sik Kim, Jang-Joo Kim, Gae Hwang Lee, Ryuichi Satoh, Yong Wan Jin, Dae-Ho Kim
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Patent number: 10620215Abstract: The present invention relates to a fluorescence sensor capable of real-time imaging for measuring a cellular thiol level. The present invention reveals that the fluorescence intensity of the fluorescent real-time SH group-tracer (FreSH-Tracer) of the present invention increases or decreases continuously, ratiometrically or reversibly depending on the thiol level in living cells, and thus can be usefully used as a biosensor which is remarkably susceptible to quantitative or qualitative real-time detection of the cellular thiol level in living cells.Type: GrantFiled: January 2, 2019Date of Patent: April 14, 2020Assignees: Cell2In, Inc., Korea University Reserach and Business Foundation, SNU R&DB FoundationInventors: In-Gyu Kim, Ki Hang Choi, Eui Man Jeong, Heun Soo Kang
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Patent number: 10584312Abstract: The present invention relates to a method for isolating pluripotent/multipotent stem cells derived from umbilical cord blood, characterized by culturing mononuclear cells isolated from umbilical cord blood in a culture vessel containing fibronectin and then harvesting stem cells from the culture, the umbilical cord blood-derived pluripotent/multipotent stem cells isolated thereby; and a cell therapeutic agent containing the pluripotent/multipotent stem cells derived from umbilical cord blood or cells differentiated therefrom. The present invention also relates to a novel culture media for stem cells, a culture method for stem cells which is characterized by culturing and proliferating stem cells in the culture media, and a method for increasing sternness of stem cells which is characterized by a sphere culture or a three-dimensional culture of stem cells.Type: GrantFiled: March 3, 2010Date of Patent: March 10, 2020Assignee: SNU R&DB FOUNDATIONInventors: Kyung Sun Kang, Kyoung Hwan Roh
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Publication number: 20200065635Abstract: A processor-implemented object detection method is provided. The method receives an input image, generates a latent variable that indicates a feature distribution of the input image, and detects an object in the input image based on the generated latent variable.Type: ApplicationFiled: May 10, 2019Publication date: February 27, 2020Applicants: SAMSUNG ELECTRONICS CO., LTD., SNU R&DB FOUNDATIONInventors: Bee LIM, Changhyun KIM, Kyoung MU LEE
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Patent number: 10575090Abstract: A sound data processing system includes a plurality of sound collecting terminals and a server, wherein each of the plurality of sound collecting terminals and each of the plurality of sound providing terminals includes a sound collecting means that collects a sound while having a position and an orientation direction, a sound providing means that provides a sound while having an orientation direction, a position detecting means that detects the positions of the sound collecting means and the sound providing means, a direction detecting means that detects the orientation directions, and a communication module that transmits sound data corresponding to the sound collected by the sound collecting means and supplementary data including position data corresponding to the position detected by the position detecting means and orientation direction data corresponding to the orientation direction detected by the direction detecting means and through a network.Type: GrantFiled: January 27, 2016Date of Patent: February 25, 2020Assignee: SNU R&DB FOUNDATIONInventors: Suhwan Kim, Seyun Kim, Minjae Kim
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Publication number: 20200051253Abstract: Disclosed is an ego motion estimation method and apparatus, wherein the apparatus calculates a scene flow field from a plurality of spaces of an input image, clusters the plurality of spaces based on a scene flow, updates a probability vector map for clustered spaces, identifies a stationary background based on the updated probability vector map, and estimates ego motion information based on the identified stationary background.Type: ApplicationFiled: January 2, 2019Publication date: February 13, 2020Applicants: Samsung Electronics Co., Ltd., SNU R&DB FoundationInventors: Wonhee LEE, Sangil LEE, Hyoun Jin KIM, SungHoon HONG
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Patent number: 10529754Abstract: An omnidirectional image sensor and a method of manufacturing the omnidirectional image sensor are provided. An image sensor may include a plurality of photodiodes, and a spherical structure comprising a plurality of protrusions, wherein the plurality of photodiodes are disposed between the plurality of protrusions, and wherein the spherical structure comprises a plurality of spherical wedges.Type: GrantFiled: March 16, 2018Date of Patent: January 7, 2020Assignees: SAMSUNG ELECTRONICS CO., LTD., SNU R&DB FOUNDATIONInventors: Dong Kyung Nam, Dae Hyeong Kim, Yang Ho Cho, Mincheol Lee, Jun Kyul Song
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Patent number: 10497893Abstract: The present invention relates to graphene and, particularly, to a method for doping graphene using substrate surface modification, a method for manufacturing a graphene composite electrode using graphene and inorganic matter, and a graphene structure comprising the same. The method for doping graphene according to an embodiment of the present invention may comprise the steps of: forming, on a substrate, a precursor polymer layer for doping; and positioning graphene on the substrate on which the precursor polymer layer is formed. In addition, the method for manufacturing a graphene composite electrode according to an embodiment of the present invention may comprise the steps of: forming graphene on catalyst metal; forming a transparent conductive oxide on the graphene; crystallizing the transparent conductive oxide by applying heat of 150° C. or higher; and transferring, to a final substrate, a composite electrode consisting of the graphene and the transparent conductive oxide.Type: GrantFiled: April 15, 2016Date of Patent: December 3, 2019Assignees: LG ELECTRONICS INC., SNU R&DB FOUNDATIONInventors: Jinsan Moon, Wonbae Park, Subeom Park, Insu Jo, Byunghee Hong
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Patent number: 10489537Abstract: Disclosed is a method of simulating a switching electrical circuit, including one or more reactive elements and one or more switches. The method includes receiving an electrical circuit including one or more reactive elements and one or more switches and a stimulus expressed in a form of a linear combination of one or more basis functions; calculating a response of the electrical circuit before the switching in a form of a linear combination of one or more basis functions, using an s-domain transfer function of the electrical circuit before the switching, initial values of the reactive elements before the switching, and the stimulus expressed in a form of a linear combination of one or more basis functions; and calculating a response of the electrical circuit after the switching in a form of a linear combination of one or more basis functions, using an s-domain transfer function of the electrical circuit after the switching and initial values of the reactive elements after the switching.Type: GrantFiled: February 7, 2013Date of Patent: November 26, 2019Assignee: SNU R&DB FOUNDATIONInventors: Ji Eun Jang, Jae Ha Kim
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Publication number: 20190354292Abstract: A memory module includes a memory device, a command/address buffering device, and a processing data buffer. The memory device includes a memory cell array, a first set of input/output terminals, each terminal configured to receive first command/address bits, and a second set of input/output terminals, each terminal configured to receive both data bits and second command/address bits. The command/address buffering device is configured to output the first command/address bits to the first set of input/output terminals. The processing data buffer is configured to output the data bits and second command/address bits to the second set of input/output terminals. The memory device is configured such that the first command/address bits, second command/address bits, and data bits are all used to access the memory cell array.Type: ApplicationFiled: July 29, 2019Publication date: November 21, 2019Applicants: SNU R&DB FOUNDATION, WISCONSIN ALUMNI RESEARCH FOUNDATIONInventors: Seong-Il O, Nam Sung KIM, Young-Hoon SON, Chan-Kyung KIM, Ho-Young SONG, Jung Ho AHN, Sang-Joon HWANG
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Patent number: 10480111Abstract: A washing machine includes a tub; a drum rotatably disposed inside the tub; and an ultrasound generator configured to emit ultrasonic waves to washing water loaded in the drum, and to generate bubbles. The ultrasound generator applies ultrasonic energy to the washing water to cause chaotic oscillation of the bubbles.Type: GrantFiled: January 12, 2015Date of Patent: November 19, 2019Assignees: SAMSUNG ELECTRONICS CO., LTD., SNU R&DB FOUNDATIONInventors: Myung-Seob Song, Dae Wook Park, Soon Cheol Kweon, Seung Kyung Park, Ho-Young Kim, Tae-Hong Kim, Junhee Choi
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Publication number: 20190339260Abstract: A method of preparing an immunological substance detection nanowire complex includes preparing a multilayer nanowire in which a first metal and a second metal are alternately stacked, attaching a polymer, having a carboxyl group and an amine group at both ends of the polymer, to the second metal, attaching a first antibody, treated with a thiol's group, to the first metal of the multilayer nanowire, and attaching a second antibody to the second metal through the carboxyl group of the polymer. The second antibody includes a phosphor.Type: ApplicationFiled: April 25, 2019Publication date: November 7, 2019Applicants: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SNU R&DB FoundationInventors: Young Keun KIM, Yoo Sang JEON, Da-yeon NAM, Yu Jin KIM, Hang-Rae KIM, Hyun Mu SHIN
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Patent number: 10465306Abstract: The present disclosure relates to a method for preparing titanium by using electrowinning and, more specifically, to a method for preparing titanium by using electrowinning, comprising the steps of: preparing a mixture by mixing a solid electrolyte, which contains an oxide of a Group 1 element and boron oxide, with titanium dioxide; and forming a molten oxide from the mixture by putting the mixture in an electrowinning apparatus comprising an anode and an insoluble cathode and heating the same, and then forming titanium on the cathode by applying voltage to the anode and the cathode.Type: GrantFiled: July 31, 2015Date of Patent: November 5, 2019Assignee: SNU R&DB FOUNDATIONInventors: Kyung-Woo Yi, Jong-Ha Park, Ho-Gil Choi
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Patent number: 10458397Abstract: Disclosed is a loop linked smart morphing actuator. The actuator includes a first area morphed in a first pattern and a second area morphed in a second pattern according to an external signal. The first area includes a first unit cell morphed in a first direction. The second area includes a second unit cell morphed in a second direction. The first unit cell and the second unit cell may be configured in a loop type knit structure. The second direction is opposite to the first direction, the second pattern is a pattern which has a symmetrical relationship with the first pattern and is provided opposite to the first pattern. In regard to a structure or a shape, provided is an actuator including a knit structure for realizing various driving forms which cannot be predicted through predetermined first and second patterns or a simple combination thereof.Type: GrantFiled: February 23, 2017Date of Patent: October 29, 2019Assignee: SNU R&DB FoundationInventors: Sung Hoon Ahn, Min Woo Han
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Patent number: 10439128Abstract: A piezoelectric device, piezoelectric sensor using the same, and wearable device having the same are disclosed. In one aspect, the piezoelectric device includes a piezoelectric layer formed of a piezoelectric material and a first layer formed above the piezoelectric layer and having a carbon nano-structure.Type: GrantFiled: December 3, 2015Date of Patent: October 8, 2019Assignees: Samsung Display Co., Ltd., SNU R&DB FoundationInventors: Jongho Hong, Wonsang Park, Jaeik Lim, Hyeyong Chu, Dae-Hyeong Kim, Jaemin Kim, Kyungsik Do, Minjoon Park