Patents by Inventor Young Man Cho
Young Man Cho 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: 20240133808Abstract: Provided is an accurate turbidity measurement system and method, using a speckle pattern, in which a speckle pattern may be used for turbidity measurement, thereby enabling turbidity and bacterial or microbial contamination to be measured with high accuracy. The system may include: a measuring container which has a light input part formed in one side thereof, has a light scattering space formed therein, and has a light output part formed in the other side thereof; and an optical dilution member which is formed in at least a portion of the light scattering space, has a sample receiving part formed in one side thereof, and comprises an optical dilution medium having a role of optically diluting a speckle pattern of the sample.Type: ApplicationFiled: May 29, 2022Publication date: April 25, 2024Inventors: Young Dug KIM, Kyoung Man CHO
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Publication number: 20240131517Abstract: Provided is a sample transport medium vial, which may include: a sample collection part having an extraction part formed at the front end thereof, having a handle part formed in the middle thereof, and having, at the rear end thereof, a push button that can be pressed with the fingers; a medium accommodation tube in which a medium accommodation space capable of accommodating the medium is formed, and which is formed in a shape that encompasses the extraction part so that the extraction part of the sample collection part can be protected; and a one-touch-type elastic push device, which is provided at the handle part so that the protrusion length of the extraction part from the handle part can be extended to a first length or contracted to a second length when a collector presses the push button once or twice.Type: ApplicationFiled: May 29, 2022Publication date: April 25, 2024Inventors: Young Dug KIM, Kyoung Man CHO
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Publication number: 20240128502Abstract: An embodiment solid electrolyte includes a first compound and a second compound. The first compound is represented by a first chemical formula Li7-aPS6-a(X11-bX2b)a, wherein X1 and X2 are the same or different and each represents F, Cl, Br, or I, and wherein 0<a?2 and 0<b<1, and the second compound is represented by a second chemical formula Li7-cP1-2dMdS6-c-3d(X11-eX2e)c, wherein X1 and X2 are the same or different and each represents F, Cl, Br, or I, wherein M represents Ge, Si, Sn, or any combination thereof, and wherein 0<c?2, 0<d<0.5, and 0<e<1.Type: ApplicationFiled: August 14, 2023Publication date: April 18, 2024Inventors: Sa Heum Kim, Yong Jun Jang, Yong Gu Kim, Sung Man Cho, Sun Ho Choi, Seong Hyeon Choi, Kyu Sung Park, Young Gyoon Ryu, Suk Gi Hong, Pil Sang Yun, Myeong Ju Ha, Hyun Beom Kim, Hwi Chul Yang
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Patent number: 11963439Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure, it is possible to produce an organic electroluminescent device having improved driving voltage, power efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.Type: GrantFiled: August 24, 2022Date of Patent: April 16, 2024Assignee: Rohm and Haas Electronic Materials Korea Ltd.Inventors: Eun-Joung Choi, Young-Kwang Kim, Su-Hyun Lee, So-Young Jung, YeJin Jeon, Hong-Se Oh, Dong-Hyung Lee, Jin-Man Kim, Hyun-Woo Kang, Mi-Ja Lee, Hee-Ryong Kang, Hyo-Nim Shin, Jeong-Hwan Jeon, Sang-Hee Cho
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Patent number: 11953783Abstract: Display apparatus includes LEDs, bottom chassis to accommodate the LEDs; and reflective member disposed on the bottom chassis. The reflective member includes a reflective bottom portion, and a reflective inclined portion obliquely formed to face a rear surface of the display panel which includes first regions that respectively correspond to LEDs located adjacent to the reflective inclined portion, and second regions each provided between two neighboring first regions and has a reflective characteristic different from a reflective characteristic of a neighboring first region. Second regions and neighboring first regions are on the reflective inclined portion having a uniform incline angle with respect to a side edge of the reflective bottom portion, the first regions include a group of light adjusting members, and the group of light adjusting members of each of the first regions is disposed to correspond to one of the LEDs disposed adjacent to the reflective inclined portion.Type: GrantFiled: February 28, 2023Date of Patent: April 9, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung Jin Cho, Young Man Ahn, Dae Hee Lee, Nae Won Jang, Hyeong Sik Choi
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Publication number: 20240110868Abstract: A water examination device includes a main body; a fluid accommodation unit formed in the main body; a wave source for irradiating waves toward the fluid accommodation unit; a detector for detecting a laser speckle in time series, the laser speckle being generated due to multiple scattering of the waves in the fluid; and a controller for estimating existence of foreign material in the fluid in real-time by using the detected laser speckle. An imaginary first plane passing through the wave source is parallel to an imaginary second plane passing through the detector.Type: ApplicationFiled: September 1, 2022Publication date: April 4, 2024Applicant: THE WAVE TALK, INC.Inventors: Young Dug KIM, Kyoung Man CHO, Doo Young CHEON
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Publication number: 20240104115Abstract: Disclosed herein are a method and apparatus for converting a credential data schema.Type: ApplicationFiled: July 11, 2023Publication date: March 28, 2024Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seok-Hyun KIM, Soo-Hyung KIM, Young-Seob CHO, Geon-Woo KIM, Young-Sam KIM, Jong-Hyouk NOH, Kwan-Tae CHO, Sang-Rae CHO, Jin-Man CHO, Seung-Hun JIN
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Publication number: 20240104990Abstract: Disclosed herein is a method for user-centered visitor access management, which may include issuing, by a management office server, a digital certificate to a householder terminal; registering, by a wall-pad, a householder in response to a request to register the householder based on the digital certificate; requesting, by the householder terminal, the management office server to register a visitor based on a visit request from a visitor terminal and delegating the digital certificate to the visitor terminal; making an entry request to a management terminal based on the digital certificate; verifying, by the wall-pad, the digital certificate based on a request for verification for entry from a wall-pad management terminal and providing a verification result to the wall-pad management terminal when the management terminal is the wall-pad management terminal; and managing and controlling, by the wall-pad, permission to use home devices based on delegated permission information of the digital certificate.Type: ApplicationFiled: March 22, 2023Publication date: March 28, 2024Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seok-Hyun KIM, Young-Seob CHO, Soo-Hyung KIM, Geon-Woo KIM, Young-Sam KIM, Jong-Hyouk NOH, Kwan-Tae CHO, Sang-Rae CHO, Jin-Man CHO, Seung-Hun JIN
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Publication number: 20240049152Abstract: There is provided a method of processing uplink Ethernet packets of an aggregation node included in a distributed antenna system, the method includes: receiving a plurality of uplink Ethernet packets; summing the plurality of received uplink Ethernet packets; and transmitting the summed uplink Ethernet packets in an uplink direction.Type: ApplicationFiled: October 18, 2023Publication date: February 8, 2024Applicant: SOLiD, INC.Inventors: Dong Hee KWON, Hoo Pyo HONG, Yong Hoon KANG, Dae Young KIM, Young Man CHO
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Patent number: 11825429Abstract: There is provided a method of processing uplink Ethernet packets of an aggregation node included in a distributed antenna system, the method includes: receiving a plurality of uplink Ethernet packets; summing the plurality of received uplink Ethernet packets; and transmitting the summed uplink Ethernet packets in an uplink direction.Type: GrantFiled: November 30, 2021Date of Patent: November 21, 2023Assignee: SOLID, INC.Inventors: Dong Hee Kwon, Hoo Pyo Hong, Yong Hoon Kang, Dae Young Kim, Young Man Cho
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Patent number: 11817918Abstract: A distributed antenna system of the present invention implements duplication by a method of configuring a first headend unit and a second headend unit in an active state or in a standby state and connecting a hub unit or a remote unit to the first headend unit and the second headend unit and by a method of connecting, through a redundancy link, a hub unit or remote units of a branch group branched from and connected to each headend unit, activating the redundancy link according to the control of an active headend unit when an error occurs in a frame transmission path, and changing logical port states of a hub unit or remote units that cannot transmit frames due to the error in order to change the frame transmission path so that frame transmission is possible through the activated redundancy link.Type: GrantFiled: July 25, 2019Date of Patent: November 14, 2023Assignee: Solid, Inc.Inventors: Ho Sik Jang, Hoo Pyo Hong, Hyong Ho Kim, Dong Hee Kwon, Kyung Eun Han, Jin Hwa Ku, Dae Young Kim, Young Man Cho
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Patent number: 11804892Abstract: Disclosed is an in-building distributed repeater technique for distributing a wireless mobile communication signal into a building. Mobile communication signals of service carriers in communication between devices of an in-building distributed repeater system may be converted into intermediate frequency (IF) signals with adjacent frequency bands and may be transmitted or received as analog signals with compressed bandwidths through frequency division multiplexing. The service band gap spacing of Tx downstream analog IF signals transmitted by a headend unit to a remote service unit is wider than that of Rx downstream analog IF signals received from an active antenna unit.Type: GrantFiled: December 16, 2021Date of Patent: October 31, 2023Assignee: TJ INNOVATION Co., Ltd.Inventors: Young Man Cho, Gwangjae Jang, Judong Lee, Jinkyu Lee, Taeyoul Park, Jinsil Park, Duckyoung Park, Youngchul Baek
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Patent number: 11799588Abstract: A technology related to a distributed antenna system is disclosed. In an exemplary embodiment, a distributed antenna system may include a master unit and a plurality of remote units. The master unit may be interfaced with a wireless communications network and perform a bidirectional simultaneous digital radio frequency distribution of a wireless signal. The plurality of remote units may be each coupled to the master unit, and each perform a wireless transmission or reception of a split radio frequency signal to or from terminals located within a coverage. The master unit and the plurality of remote units may transmit or receive digital radio frequency signals in a wavelet transform domain. The master unit may determine whether the digital radio frequency signal, transmitted by each of the remote units, is normal, and merge the digital radio frequency signals.Type: GrantFiled: January 14, 2021Date of Patent: October 24, 2023Assignee: SOLiD Inc.Inventor: Young Man Cho
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Publication number: 20230114802Abstract: Disclosed is an in-building distributed repeater technique for distributing a wireless mobile communication signal into a building. Mobile communication signals of service carriers in communication between devices of an in-building distributed repeater system may be converted into intermediate frequency (IF) signals with adjacent frequency bands and may be transmitted or received as analog signals with compressed bandwidths through frequency division multiplexing. The service band gap spacing of Tx downstream analog IF signals transmitted by a headend unit to a remote service unit is wider than that of Rx downstream analog IF signals received from an active antenna unit.Type: ApplicationFiled: December 16, 2021Publication date: April 13, 2023Applicants: TJ INNOVATION Co., Ltd.Inventors: Young Man CHO, Gwangjae JANG, Judong LEE, Jinkyu LEE, Taeyoul PARK, Jinsil PARK, Duckyoung PARK, Youngchul BAEK
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Patent number: 11567158Abstract: Disclosed is a beacon-based positioning system. A beacon position in which a beacon is installable is defined in a target space, and a path loss model of radio frequency (RF) signals between all beacon positions and all observation positions of a scanner is determined. Among all possible installation plans for the beacon positions, an installation plan in which different beacon signals, whose RSSIs calculated using the path loss model have significant values, are received in a number greater than or equal to a minimum reference number and a total number of the beacons installed is minimum is determined as an optimal installation plan. The optimization problem of determining the optimal installation plan may be expressed by binary linear programming.Type: GrantFiled: August 28, 2020Date of Patent: January 31, 2023Assignee: SOLiD, Inc.Inventors: Young Man Cho, Yvonne Hee Jun Cho
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Patent number: 11570032Abstract: A TSN-based distributed antenna system including a headend unit, one or more TSN switches, and one or more remote units and a fronthaul transport network constituted by the headend unit, the TSN switch, and the remote unit is provided. The packet-based fronthaul network constituted by the headend unit, the TSN switch, and the remote unit transmits traffic in a time-deterministic manner while minimizing packet loss through Ethernet to which TSN standards are applied.Type: GrantFiled: April 13, 2021Date of Patent: January 31, 2023Assignee: SOLID, INC.Inventors: Dong Hee Kwon, Hoo Pyo Hong, Young Man Cho, Dae Young Kim, Hyun Jung Kim
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Publication number: 20220352929Abstract: A distributed antenna system of the present invention implements duplication by a method of configuring a first headend unit and a second headend unit in an active state or in a standby state and connecting a hub unit or a remote unit to the first headend unit and the second headend unit and by a method of connecting, through a redundancy link, a hub unit or remote units of a branch group branched from and connected to each headend unit, activating the redundancy link according to the control of an active headend unit when an error occurs in a frame transmission path, and changing logical port states of a hub unit or remote units that cannot transmit frames due to the error in order to change the frame transmission path so that frame transmission is possible through the activated redundancy link.Type: ApplicationFiled: July 25, 2019Publication date: November 3, 2022Applicant: Solid, Inc.Inventors: Ho Sik Jang, Hoo Pyo Hong, Hyong Ho Kim, Dong Hee Kwon, Kyung Eun Han, Jin Hwa Ku, Dae Young Kim, Young Man Cho
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Patent number: 11381311Abstract: An analog distributed antenna system having a set of small cells as a signal source is provided. A proposed cellular communication system includes an upper small cell unit including upper protocol processors configured to process an upper first part of a protocol stack of a small cell, a lower small cell unit including lower protocol processors configured to process a remaining second part of the protocol stack of the small cell, and a first matching switch configured to respectively match the lower protocol processors to a plurality of remote units. According to one aspect, the cellular communication system includes a common controller configured to control activation of the plurality of upper protocol processors of the upper small cell unit and the plurality of lower protocol processors of the lower small cell unit according to a required service capacity and appropriately control an operation of the first matching switch.Type: GrantFiled: June 19, 2020Date of Patent: July 5, 2022Assignee: SOLiD Inc.Inventors: Young Man Cho, Hee Hwan Kwak
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Publication number: 20220141142Abstract: Disclosed is an OpenFlow based distributed antenna system (DAS) policy routing method. The DAS policy routing method includes: extracting, by a DAS unit, a match field from header information of a received frame; and comparing, by the DAS unit, the extracted match field with a matching rule of a forwarding table to route according to a matching traffic transmission policy and output a frame to an output port of the DAS unit.Type: ApplicationFiled: January 16, 2022Publication date: May 5, 2022Applicant: SOLiD Inc.Inventors: Dong Hee KWON, Hoo Pyo HONG, Young Man CHO
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Publication number: 20220086781Abstract: There is provided a method of processing uplink Ethernet packets of an aggregation node included in a distributed antenna system, the method includes: receiving a plurality of uplink Ethernet packets; summing the plurality of received uplink Ethernet packets; and transmitting the summed uplink Ethernet packets in an uplink direction.Type: ApplicationFiled: November 30, 2021Publication date: March 17, 2022Applicant: SOLiD, INC.Inventors: Dong Hee KWON, Hoo Pyo HONG, Yong Hoon KANG, Dae Young KIM, Young Man CHO