Patents by Inventor Seung-Han Choi
Seung-Han Choi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240186506Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery using a positive electrode containing the positive electrode active material. More particularly, the present invention relates to a positive electrode active material that is able to solve a problem of increased resistance according to an increase in Ni content by forming a charge transport channel in a lithium composite oxide and a lithium secondary battery using a positive electrode containing the positive electrode active material.Type: ApplicationFiled: February 14, 2024Publication date: June 6, 2024Applicant: ECOPRO BM CO., LTD.Inventors: Moon Ho CHOI, Jun Won SUH, Jin Kyeong YUN, Jung Han LEE, Mi Hye YUN, Seung Woo CHOI, Gwang Seok CHOE, Ye Ri JANG, Joong Ho BAE
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Patent number: 11996559Abstract: A lithium complex oxide includes a mixture of first particles of n1 (n1>40) aggregated primary particles and second particles of n2 (n2?20) aggregated primary particles, the lithium complex oxide represented by Chemical Formula 1 and having FWHM (deg., 2?) of 104 peak in XRD, defined by a hexagonal lattice having R-3m space group, in a range of Formula 1: LiaNixCoyMnzM1-x-y-zO2,??[Chemical Formula 1] where M is selected from: B, Ba, Ce, Cr, F, Mg, Al, Cr, V, Ti, Fe, Zr, Zn, Si, Y, Nb, Ga, Sn, Mo, W, P, Sr, and any combination thereof, 0.9?a?1.3, 0.6?x?1.0, 0.0?y?=0.4, 0.0?z?0.4, and 0.0?1-x-y-z?0.4, ?0.025?FWHM(104)?{0.04+(xfirst particle?0.6)×0.25}?0.025,??[Formula 1] where FWHM(104) is represented by Formula 2, FWHM(104)={(FWHMChemical Formula 1 powder(104)?0.1×mass ratio of second particles)/mass ratio of first particles}?FWHMSi powder (220).Type: GrantFiled: February 23, 2023Date of Patent: May 28, 2024Assignee: ECOPRO BM CO., LTD.Inventors: Jung Han Lee, Seung Woo Choi, Moon Ho Choi, Jun Won Suh, Jin Kyeong Yun, Mi Hye Yun, Kwang Seok Choi, Joong Ho Bae, Jin Oh Son
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Publication number: 20240157784Abstract: A fuel pump module for a vehicle includes: a pump positioned in a reservoir cup in a tank and configured to suction and discharge fuel from the reservoir cup; a mount plate mounted in an opening of the tank; a return valve on the mount plate and configured to pass return fuel, which is returned from an engine, into the tank; a shaft bracket connecting the mount plate and the pump in the tank and configured to fix the pump to the mount plate; a guide wall disposed on the shaft bracket to guide return fuel flowing in the tank through the return valve; and a channel disposed at the shaft bracket so that return fuel flows down and configured to discharge the return fuel into the reservoir cup.Type: ApplicationFiled: May 11, 2023Publication date: May 16, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Seung Hoon Choi, Gil Eon Kang, Chang Han Kim, Seung Yup Oh
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Publication number: 20240105963Abstract: A method for manufacturing a gas diffusion layer for a fuel cell wherein carbon nanotubes are impregnated into Korean paper, thereby enhancing electroconductivity, and a gas diffusion layer manufactured thereby. The method for manufacturing a gas diffusion layer for a fuel cell which is to manufacture a gas diffusion layer as a constituent member of a unit cell in a fuel cell, includes a support preparation step of preparing a support with Korean paper; a dispersion preparation step of dispersing a carbon substance in a solvent to form a dispersion, a coating step of coating the support with the dispersion, and a thermal treatment step of thermally treating the dispersion-coated support to fix the carbon substance to the support.Type: ApplicationFiled: March 6, 2023Publication date: March 28, 2024Inventors: Seung Tak Noh, Ji Han Lee, In Seok Lee, Jae Man Park, Won Jong Choi, Choong Hee Kim, Seong Hwang Kim, Jong Hoon Lee, Soo Jin Park, Seul Yi Lee
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Patent number: 11942635Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery using a positive electrode containing the positive electrode active material. More particularly, the present invention relates to a positive electrode active material that is able to solve a problem of increased resistance according to an increase in Ni content by forming a charge transport channel in a lithium composite oxide and a lithium secondary battery using a positive electrode containing the positive electrode active material.Type: GrantFiled: September 28, 2020Date of Patent: March 26, 2024Assignee: ECOPRO BM CO., LTD.Inventors: Moon Ho Choi, Jun Won Suh, Jin Kyeong Yun, Jung Han Lee, Mi Hye Yun, Seung Woo Choi, Gwang Seok Choe, Ye Ri Jang, Joong Ho Bae
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Patent number: 11935481Abstract: Provided is a display device, which includes: a reference voltage line formed along a circular outer line and configured to provide a reference voltage; a first reference voltage auxiliary line electrically connected to the reference voltage line and formed to be parallel with a predetermined interval; and a conductive line forming a contact with the reference voltage line and the first reference voltage auxiliary line and configured to provide the reference voltage to a cathode.Type: GrantFiled: November 11, 2021Date of Patent: March 19, 2024Assignee: Samsung Display Co., Ltd.Inventors: Seung Han Jo, Min Chae Kwak, Kyeong Hwa Kim, Mi Hae Kim, Kyong Hwan Oh, Su Mi Jang, Jae-Ho Choi
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Publication number: 20240088432Abstract: An embodiment sulfur dioxide-based inorganic electrolyte is provided in which the sulfur dioxide-based inorganic electrolyte is represented by a chemical formula M·(A1·Cl(4-x)Fx)z·ySO2. In this formula, M is a first element selected from the group consisting of Li, Na, K, Ca, and Mg, A1 is a second element selected from the group consisting of Al, Fe, Ga, and Cu, x satisfies a first equation 0?x?4, y satisfies a second equation 0?y?6, and z satisfies a third equation 1?z?2.Type: ApplicationFiled: April 12, 2023Publication date: March 14, 2024Inventors: Kyu Ju Kwak, Won Keun Kim, Eun Ji Kwon, Samuel Seo, Yeon Jong Oh, Kyoung Han Ryu, Dong Hyun Lee, Han Su Kim, Ji Whan Lee, Seong Hoon Choi, Seung Do Mun
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Publication number: 20240076468Abstract: An embodiment resin composition for shielding electromagnetic waves, based on a total weight of the resin composition, includes 20 to 80 wt % of thermoplastic resin, 1 to 50 wt % of a conductive filler, and 0.1 to 30 wt % of an additive.Type: ApplicationFiled: January 16, 2023Publication date: March 7, 2024Inventors: Seung-Woo Choi, Dong-Bum Seo, Kyun Oh, Yu-Hyun Song, Yang-Jin Kwon, Joo-Han Lee
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Publication number: 20240080705Abstract: Provided is an operation method of a user plane function (UPF) apparatus in a wireless communication system, the operation method including: obtaining a subscription request message from either a TSN AF or a TSCTSF or both on the basis of an exposure service for a UPF event, the subscription request message including TSC management information; performing triggering for subscription to the UPF event on the basis of the TSC management information; and providing a notification message to either the TSN AF or the TSCTSF or both, the notification message including the TSC management information.Type: ApplicationFiled: May 8, 2023Publication date: March 7, 2024Inventors: Yoo Hwa KANG, Seung Han CHOI, Changki KIM, Jeoung Lak HA
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Publication number: 20230361901Abstract: An apparatus and method for directly exposing, by user plane function/network side-time sensitive networking translator (UPF/NW-TT), event result information to time sensitive networking (TSN) or time sensitive communication time synchronization function (TSCTSF) through service interface (Nupf) in wireless communication system.Type: ApplicationFiled: May 4, 2023Publication date: November 9, 2023Inventors: Changki KIM, Jeoung Lak HA, Yoo Hwa KANG, Seung Han CHOI
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Patent number: 10616530Abstract: According to the present invention, by receiving, by a transceiver, videos from each of a plurality of clients, decoding, by a first processor, the plurality of videos, mixing, by a second processor, the plurality of decoded videos into a multipoint video, encoding, by the first processor, the multipoint video, multiplexing, by the first processor, the encoded multipoint video into a plurality of multipoint videos, and transmitting, by a transceiver, each of the plurality of multipoint videos to the plurality of clients, it is possible to dramatically reduce a CPU load for video quality calibration and mixing for large capacity videos, reduce video a processing delay time, and provide a higher quality multipoint conference video to a user by performing the video quality correction function, which is performed in the CPU, by using a higher-grade GPU in video processing.Type: GrantFiled: December 21, 2018Date of Patent: April 7, 2020Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventor: Seung Han Choi
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Publication number: 20190199966Abstract: According to the present invention, by receiving, by a transceiver, videos from each of a plurality of clients, decoding, by a first processor, the plurality of videos, mixing, by a second processor, the plurality of decoded videos into a multipoint video, encoding, by the first processor, the multipoint video, multiplexing, by the first processor, the encoded multipoint video into a plurality of multipoint videos, and transmitting, by a transceiver, each of the plurality of multipoint videos to the plurality of clients, it is possible to dramatically reduce a CPU load for video quality calibration and mixing for large capacity videos, reduce video a processing delay time, and provide a higher quality multipoint conference video to a user by performing the video quality correction function, which is performed in the CPU, by using a higher-grade GPU in video processing.Type: ApplicationFiled: December 21, 2018Publication date: June 27, 2019Inventor: Seung Han CHOI
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Publication number: 20180270452Abstract: Disclosed is a multi-point connection control apparatus and method for a video conference service. The apparatus may include a front end processor configured to receive video streams and audio streams from user terminals of participants using the video conference service, and generate screen configuration information for providing the video conference service based on the received video streams and the received audio streams, and a back end processor configured to receive at least one of the video streams, at least one of the audio streams, and the screen configuration information from the front end processor, and generate a mixed video for the video conference service based on the received at least one of the video streams, at least one of the audio streams, and the screen configuration information.Type: ApplicationFiled: July 26, 2017Publication date: September 20, 2018Inventors: Jong Bae MOON, Jung-Hyun CHO, Jin Ah KANG, Hoon Ki LEE, Jong Hyun JANG, Deockgu JEE, Seung Han CHOI, Mi Kyong HAN
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Patent number: 9998710Abstract: Provided is an apparatus for supporting a video conference in a client terminal for a video conference system. The apparatus includes: an edition/rendering module configured to receive basic lattice layout screen data containing respective participant images included in a plurality of lattices and respective location information of the plurality of lattices applied to the basic lattice layout screen data; and an input module configured to input edition information, wherein, in response to the edition information input through the input module, the edition/rendering module classifies respective lattice images of the basic lattice layout screen data according to the respective location information, and generates new layout screen data edited with respect to the respective lattice images.Type: GrantFiled: July 27, 2016Date of Patent: June 12, 2018Assignee: Electronics and Telecommunicaticns Research InstituteInventors: Seung Han Choi, Do Young Kim
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Publication number: 20170201719Abstract: Provided is an apparatus for supporting a video conference in a client terminal for a video conference system. The apparatus includes: an edition/rendering module configured to receive basic lattice layout screen data containing respective participant images included in a plurality of lattices and respective location information of the plurality of lattices applied to the basic lattice layout screen data; and an input module configured to input edition information, wherein, in response to the edition information input through the input module, the edition/rendering module classifies respective lattice images of the basic lattice layout screen data according to the respective location information, and generates new layout screen data edited with respect to the respective lattice images.Type: ApplicationFiled: July 27, 2016Publication date: July 13, 2017Inventors: Seung Han CHOI, Do Young KIM
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Patent number: 9441257Abstract: A method for producing fermented edible plants alone or a mixture of edible plants and edible animals including the steps of: producing crushed edible plants or edible animal/plants; culturing a liquid mixture of grains, saccharides, filamentous fungi, and yeast for 24 to 36 hours to produce a mixed microbial broth; inoculating the edible plants or edible animal/plants with the mixed microbial broth, and firstly fermenting the edible plants or edible animal/plants for 3 to 8 days to produce first fermented edible plants or edible animal/plants; and inoculating the first fermented edible plants or edible animal/plants with bacteria, and secondly fermenting the first fermented edible plants or edible animal/plants for 6 to 12 days to produce second fermented edible plants or edible animal/plants. Further, adding the fermented edible plants or edible animal/plants produced by the above-described method into foods can provide storage stability, increase bioavailability, and improve flavor.Type: GrantFiled: May 6, 2009Date of Patent: September 13, 2016Assignee: PHARVIS R&D KOREA CO., LTD.Inventors: Joo Chae Choi, Jun Han Choi, Seung Han Choi
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Publication number: 20150029299Abstract: To conduct video conferencing between a plurality of distributed clients, a distributed controller receives a request from a first distributed client for a packet from a second distributed client selected as the main speaker, and a distributed media processor creates a switching entry for switching packets from the first and second distributed clients, in response to a request from the distributed controller. The distributed controller sends a packet transmission request to the second distributed client, and the distributed media processor receives a packet from the second distributed client and sends the received packet to the first distributed client based on the switching entry.Type: ApplicationFiled: November 27, 2013Publication date: January 29, 2015Applicant: Electronics and Telecommunications Research InstituteInventors: Seung Han CHOI, Juyoung PARK, Young Soo SHIN
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Publication number: 20140375755Abstract: Disclosed herein are an apparatus and method for changing a main screen based on distributed telepresence. A distributed telepresence-based control server includes a main speaker change request reception unit for receiving a main speaker change request for requesting change of a main speaker from a first speaker who is an existing main speaker to a second speaker different from the first speaker. A video transmission requesting unit requests a client of the second speaker to transmit a high-resolution video of the second speaker in response to the main speaker change request. A video transmission stop request reception unit receives a video transmission stop request for requesting stop of transmission of a high-resolution video of the first speaker. A video transmission stop requesting unit requests a client of the first speaker to stop transmitting the high-resolution video of the first speaker in response to the video transmission stop request.Type: ApplicationFiled: November 22, 2013Publication date: December 25, 2014Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seung-Han CHOI, Do-Young KIM
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Patent number: 8843379Abstract: An apparatus, electronic apparatus and method for adjusting jitter buffer is provided. A previous jitter buffer size based on a jitter buffer size determined according to an adaptive jitter buffer size calculation algorithm is applied in predicting a jitter buffer size of future time such that the predicted jitter buffer size is applied to obtain a jitter buffer size of a valid time. The audio quality of the speech transmitted over a packet switched network is enhanced.Type: GrantFiled: September 23, 2011Date of Patent: September 23, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Seung-Han Choi, Do-Young Kim, Byung-Sun Lee
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Patent number: 8359620Abstract: An Internet Set-Top Box (ISTB) and a method of providing wideband IP telephony services using the ISTB are provided, which are capable of implementing wideband voice communication services using a wideband voice codec, controlling a Real-Time Transport Protocol (RTP) packet payload to process a variety of wideband speech frame payloads, and providing high-quality wideband IP telephony services by controlling a jitter buffer to maintain conference call synchronization.Type: GrantFiled: August 4, 2010Date of Patent: January 22, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Seung-Han Choi, Woon-Seob So, Do-Young Kim, Hyun-Joo Bae, Byung-Sun Lee