Patents by Inventor Jihun Choi
Jihun 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: 20240152272Abstract: The electronic apparatus includes: a storage; a memory; and at least one processor, comprising processing circuitry, individually and/or collectively configured to: store data, based on a first file of a rewritable type or a second file of a read-only type stored in the storage, in a first area of the memory, identify a type of a file corresponding to the data stored in the first area of the memory, in response to an event of freeing up space in the memory, delete the data of the first file from the first area, based on the identified type being the rewritable type of the first file, store the data of the second file in a second area of the memory and delete the data of the second file from the first area, based on the identified type being the read-only type of the second file, restore the data of the first file to the first area based on the first file stored in the storage, in response to an event of accessing the data of the first file, and restore the data of the second file stored in the second area toType: ApplicationFiled: January 19, 2024Publication date: May 9, 2024Inventors: Kyeonghwan JUNG, Jusun SONG, Jaehoon JEONG, Jihun JUNG, Changhyeon CHAE, Jaeook KWON, Youngho CHOI
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Publication number: 20240081119Abstract: The present disclosure relates to a display device and a method of manufacturing the same, the display device including: a substrate including a pixel area and a non-pixel area adjacent to the pixel area; a power line formed on the substrate; at least one insulation layer covering the power line; a connection electrode formed on the at least one insulation layer, and connected to the power line through a contact hole; an overcoat layer placed above the connection electrode in the pixel area; and a first electrode placed above the overcoat layer, wherein the connection electrode has at least an area formed in the non-pixel area, and the first electrode extends to the non-pixel area and is connected to the connection electrode.Type: ApplicationFiled: November 8, 2023Publication date: March 7, 2024Inventors: Jungeun LEE, Chulho KIM, Namkook KIM, Sungwoo CHOI, Hwankeon LEE, Youngkyun MOON, Jihun LEE
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Publication number: 20240009576Abstract: An event data recording section 240 records event data related to an activity executed by a plurality of players. A play time acquisition section 212 acquires play times of the plurality of players for the activity from event data indicating start of the activity and event data indicating end of the activity. A skill value derivation section 216 derives a skill value for a user for the activity on a basis of the play time of the user for the activity and a distribution of play times for the activity. The skill value derivation section 216 derives the skill value for the user related to game play on a basis of a plurality of skill values derived for a plurality of activities.Type: ApplicationFiled: October 5, 2021Publication date: January 11, 2024Inventor: Jihun CHOI
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Publication number: 20230351911Abstract: The disclosure relates to a driving simulator for accident analysis of an autonomous emergency braking device, the driving simulator including a boarding unit including a boarding display unit, a main body, and a support unit, and a control unit including a controller configured to run a simulation program for accident analysis of the autonomous emergency braking device and control the boarding unit, and a control display unit configured to provide an operator interface screen of a simulation program for accident analysis of the autonomous emergency braking device, wherein the simulation program for accident analysis of the autonomous emergency braking device includes an autonomous emergency braking driving logic unit configured to output a warning signal to the boarding unit according to a sequence of the autonomous emergency braking device or apply a virtual braking pressure to the virtual driving vehicle, calculate collision data.Type: ApplicationFiled: October 4, 2022Publication date: November 2, 2023Inventors: Jonghyuk KIM, Jihun CHOI, Hyunseo HAN, Jungwoo PARK, Hasun PARK
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Publication number: 20230350779Abstract: Provided is a simulation system for accident analysis of an autonomous emergency braking device, the simulation system including a data input unit configured to receive virtual driving data including state data about a virtual driving vehicle, a target, and a driving environment; a radar driving logic unit configured to calculate a relative speed, a relative distance, and an azimuth between the virtual driving vehicle and the target based on the virtual driving data; and an autonomous emergency braking driving logic unit configured to output a warning signal or apply a braking pressure to the virtual driving vehicle according to a sequence of the autonomous emergency braking device, and to calculate collision data including a final stopping distance and a collision speed.Type: ApplicationFiled: October 4, 2022Publication date: November 2, 2023Inventors: Jonghyuk KIM, Jihun CHOI, Hyunseo HAN, Songhui KIM, Hasun PARK
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Publication number: 20230338836Abstract: An event data recording section 240 records event data related to an activity executed by a plurality of players. A play time acquisition section 212 acquires play times of the plurality of players for a task from event data indicating start of the task included in the activity and event data indicating end of the task included in the activity, the event data being recorded in the event data recording section 240. A statistical processing section 220 sorts each of the players into any one of a plurality of classes according to a skill value of the player and determines, on a basis of the play times of the plurality of players in each class, a representative value for the play times in each class for the task. The statistical processing section 220 aggregates representative values for each class to determine the representative value for the play times in each class for the activity.Type: ApplicationFiled: October 5, 2021Publication date: October 26, 2023Inventor: Jihun CHOI
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Patent number: 11750319Abstract: We disclose a novel methodology for wireless networks that optimizes the transmission probability, transmit power at an agent, and the reflection matrix of an IRS for covert RF communications. Key features include: (1) An exact closed-form expression for the expected detection error probability (DEP) at an adversary is provided considering the transmission probability at the agent; and (2) a novel method to optimize the transmission probability, transmit power at the agent and the reflection matrix of the IRS with the goal of maximizing the achievable rate at a client while ensuring a covertness constraint is developed. More specifically, the method may require only one-dimensional line search schemes, achieves near-optimal performance, and exhibits enhanced achievable data rate when compared to the conventional technique without the transmission probability optimization.Type: GrantFiled: May 19, 2022Date of Patent: September 5, 2023Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Justin S. Kong, Fikadu T. Dagefu, Jihun Choi
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Patent number: 11476837Abstract: An active matching network for impedance matching to a miniature antenna, comprising a cross-coupled transistor pair, where each transistor has an emitter, base and collector, the emitter of a first transistor forms an input terminal, the emitter of a second transistor forms on output terminal, the collector of the first transistor coupled to the base of the second transistor, the collector of the second transistor coupled to the base of the first transistor, and a matching circuit coupled between the collectors of the first and second transistors. The matching network is configured to match an impendence near resonance of the high Q miniature antenna to an input impedance using a complex negative impedance comprising resistance, inductance and capacitance.Type: GrantFiled: June 8, 2020Date of Patent: October 18, 2022Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Jihun Choi, Fikadu T. Dagefu, Brian M. Sadler, Kamal Sarabandi
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Publication number: 20210028770Abstract: An active matching network for impedance matching to a miniature antenna, comprising a cross-coupled transistor pair, where each transistor has an emitter, base and collector, the emitter of a first transistor forms an input terminal, the emitter of a second transistor forms on output terminal, the collector of the first transistor coupled to the base of the second transistor, the collector of the second transistor coupled to the base of the first transistor, and a matching circuit coupled between the collectors of the first and second transistors. The matching network is configured to match an impendence near resonance of the high Q miniature antenna to an input impedance using a complex negative impedance comprising resistance, inductance and capacitance.Type: ApplicationFiled: June 8, 2020Publication date: January 28, 2021Inventors: Jihun Choi, Fikadu T. Degefu, Brian M. Sadler, Kamal Sarabandi
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Patent number: 9958744Abstract: Provided is display panel including a substrate including a pixel area and a pad area; and a first conductive line and a second conductive line stacked on the substrate, wherein the first conductive line includes a first part disposed on the pixel area and a second part disposed on the pad area and the second conductive line includes a first part disposed on the pixel area and a second part disposed on the pad area. The first part of the first conductive line and the first part of the second conductive line are parallel to each other and the second part of the first conductive line and the second part of the second conductive line are overlapped vertically.Type: GrantFiled: November 18, 2016Date of Patent: May 1, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jihun Choi, Jae-Eun Pi
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Publication number: 20170176804Abstract: Provided is display panel including a substrate including a pixel area and a pad area; and a first conductive line and a second conductive line stacked on the substrate, wherein the first conductive line includes a first part disposed on the pixel area and a second part disposed on the pad area and the second conductive line includes a first part disposed on the pixel area and a second part disposed on the pad area. The first part of the first conductive line and the first part of the second conductive line are parallel to each other and the second part of the first conductive line and the second part of the second conductive line are overlapped vertically.Type: ApplicationFiled: November 18, 2016Publication date: June 22, 2017Inventors: Jihun CHOI, Jae-Eun PI
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Patent number: 8981305Abstract: Embodiments of the present disclosure provide for nanoparticles, methods of making nanoparticles, materials including nanoparticles, the use of materials including nanoparticles, and the like.Type: GrantFiled: May 1, 2012Date of Patent: March 17, 2015Assignee: University of Florida Research Foundation, Inc.Inventors: Paul Howard Holloway, Jihun Choi, Teng-Kuan Tseng, Luiz G. Jacobsohn
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Publication number: 20130026371Abstract: Embodiments of the present disclosure provide for nanoparticles, methods of making nanoparticles, materials including nanoparticles, the use of materials including nanoparticles, and the like.Type: ApplicationFiled: May 1, 2012Publication date: January 31, 2013Applicants: CLEMSON UNIVERSITY, UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: Paul Howard Holloway, Jihun Choi, Teng-Kuan Tseng, Luiz G. Jacobsohn