Patents by Inventor Hyun Sik Kim
Hyun Sik Kim 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: 20230326384Abstract: A data driving circuit includes: a resistor string in which a plurality of resistors are connected in series; and a plurality of data channels connected to a high voltage node, intermediate voltage nodes, and a low voltage node of the resistor string and configured to convert a digital data signal into an analog data voltage. Each of the plurality of data channels includes: a main digital-to-analog converter connected to the high voltage node, the intermediate voltage nodes, and the low voltage node, a multiplier connected to an output terminal of the main digital-to-analog converter, a sub digital-to-analog converter connected to some of the high voltage node, the intermediate voltage nodes, and the low voltage node, and a voltage synthesizer connected to an output terminal of the multiplier and an output terminal of the sub digital-to-analog converter.Type: ApplicationFiled: June 16, 2023Publication date: October 12, 2023Inventors: Hyung Gun MA, Gyu Wan LIM, Gyeong Gu KANG, Hyun Sik KIM, Keum Dong JUNG, Moon Jae JEONG
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Patent number: 11761623Abstract: An apparatus for combustion optimization is provided. The apparatus for combustion optimization includes a management layer configured to collect currently measured real-time data for boiler combustion, and to determine whether to perform combustion optimization and whether to tune a combustion model and a combustion controller by analyzing the collected real-time data, a data layer configured to derive learning data necessary for designing the combustion model and the combustion controller from the real-time data and previously measured past data for the boiler combustion, a model layer configured to generate the combustion model and the combustion controller through the learning data, and an optimal layer configured to calculate a target value for the combustion optimization by using the combustion model and the combustion controller, and to output a control signal according to the calculated target value.Type: GrantFiled: September 18, 2019Date of Patent: September 19, 2023Assignee: DOOSAN ENERBILITY CO., LTD.Inventors: Jee Hun Park, Sang Gun Na, Hyun Sik Kim, Jwa Young Maeng
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Patent number: 11736079Abstract: An amplifier circuit includes a differential input terminal, a first power supplier, an amplifier, and a current redistributor. A differential input terminal includes a first differential pair of a p-type and a second differential pair of an n-type, and receives an input voltage. A first power supplier supplies a bias current to the differential input terminal. An amplifier receives an output current of the first differential pair and an output current of the second differential pair, and applies an amplified current to an output node. A current redistributor receives the output current of the first differential pair and the output current of the second differential pair, and provides a redistribution current to the differential input terminal.Type: GrantFiled: January 3, 2022Date of Patent: August 22, 2023Assignees: SAMSUNG DISPLAY CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Seok-Tae Koh, Seongjoo Lee, Hyun-Sik Kim, Gyeong-Gu Kang, Seunghwa Shin, Ohjo Kwon, Keumdong Jung
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Publication number: 20230260441Abstract: A data driving circuit includes: a resistor string in which a plurality of resistors are connected in series; and a plurality of data channels connected to a high voltage node, intermediate voltage nodes, and a low voltage node of the resistor string and configured to convert a digital data signal into an analog data voltage. Each of the plurality of data channels includes: a main digital-to-analog converter connected to the high voltage node, the intermediate voltage nodes, and the low voltage node, a multiplier connected to an output terminal of the main digital-to-analog converter, a sub digital-to-analog converter connected to some of the high voltage node, the intermediate voltage nodes, and the low voltage node, and a voltage synthesizer connected to an output terminal of the multiplier and an output terminal of the sub digital-to-analog converter.Type: ApplicationFiled: November 11, 2022Publication date: August 17, 2023Inventors: Hyung Gun Ma, Gyu Wan Lim, Gyeong Gu Kang, Hyun Sik Kim, Keum Dong Jung, Moon Jae Jeong
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Patent number: 11721265Abstract: A data driving circuit includes: a resistor string in which a plurality of resistors are connected in series; and a plurality of data channels connected to a high voltage node, intermediate voltage nodes, and a low voltage node of the resistor string and configured to convert a digital data signal into an analog data voltage. Each of the plurality of data channels includes: a main digital-to-analog converter connected to the high voltage node, the intermediate voltage nodes, and the low voltage node, a multiplier connected to an output terminal of the main digital-to-analog converter, a sub digital-to-analog converter connected to some of the high voltage node, the intermediate voltage nodes, and the low voltage node, and a voltage synthesizer connected to an output terminal of the multiplier and an output terminal of the sub digital-to-analog converter.Type: GrantFiled: November 11, 2022Date of Patent: August 8, 2023Assignees: SAMSUNG DISPLAY CO., LTD., KOREAN ADVANCE INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyung Gun Ma, Gyu Wan Lim, Gyeong Gu Kang, Hyun Sik Kim, Keum Dong Jung, Moon Jae Jeong
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Patent number: 11709486Abstract: Disclosed is a fault signal recovery system including a data processor configured to generate a signal subset U* by removing, from a signal set U for a plurality of tags, some tags including a fault signal, and a first learning signal subset X* by removing tags disposed at positions corresponding to the some tags from a learning signal set X containing only tags of normal signals, a modeling unit configured to generate feature information F extractable from the first learning signal subset X* and recovery information P on a plurality of recovery models usable for restoring the fault signal, and a recovery unit configured to estimate and recover normal signals for the some tags based on the signal subset U*, the first learning signal subset X*, the feature information F, the recovery information P on the plurality of recovery models, and similarity Z.Type: GrantFiled: January 5, 2021Date of Patent: July 25, 2023Assignee: DOOSAN ENERBILITY CO., LTD.Inventors: Jee Hun Park, Hyun Sik Kim
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Publication number: 20230231473Abstract: A switching regulator, system-on-chip including the switching regulator, and operating method of the switching regulator are provided. The switching regulator comprises a first inductor having a first end connected to a first node and a second end connected to an output terminal, a second inductor having a first end connected to a second node and a second end connected to the output terminal, a flying capacitor having a first end connected to the first node and a second end connected to the second node, and control circuitry configured to at each of first through fourth times control the first switch, the second switch, the third switch, the fourth switch, the fifth switch, the sixth switch, the seventh switch, and the eighth switch to cause the flying capacitor to store a voltage corresponding to a difference between currents flowing in the first inductor and the second inductor.Type: ApplicationFiled: December 13, 2022Publication date: July 20, 2023Applicants: Samsung Electronics Co., Ltd., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jeong Hyun CHO, Hyun Sik KIM, Hong Hyun BAE
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Publication number: 20230223844Abstract: A semiconductor device may include: a flying capacitor connected between a first node and a second node; a first inductor having a first end connected to the flying capacitor through the first node and a second end connected to an output node; and a second inductor having a first end connected to the flying capacitor through the second node and a second end connected to the output node, wherein the semiconductor device is configurable in a plurality of different states based on a plurality of different operational phases, and wherein the flying capacitor is configured to float in a first phase, is configured to be discharged through the first inductor in a second phase that is different from the first phase, and is configured to be charged through the second inductor in a third phase that is different from the first phase and the second phase.Type: ApplicationFiled: January 12, 2023Publication date: July 13, 2023Inventors: JUNHYEOK YANG, JEONG-HYUN CHO, JEONGPYO PARK, TAE-HWANG KONG, HYUN-SIK KIM, HONG-HYUN BAE
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Publication number: 20230219628Abstract: A vehicle body structure includes: a front pillar joined to a dash panel; a front side member extending from the dash panel toward the front of a vehicle; a side sill connected to a bottom end of the front pillar; a rear lower member connecting a rear portion of the front side member and a front portion of the side sill; and a connection member connecting at least two of the front pillar, the side sill, and the rear lower member. The connection member is integrally connected to the front pillar, the side sill, or the rear lower member to form a unitary one piece structure therewith.Type: ApplicationFiled: March 10, 2023Publication date: July 13, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Deok Hwa Hong, Hee Seouk Chung, Hyun Sik Kim, Byeong Cheon Lee
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Publication number: 20230212030Abstract: A device for selecting an optimal model includes: a model storage part including a seed model storage place in which a seed model is stored, and an optimal model storage place in which an existing optimal model is stored; a model generation part configured to use training data to generate a variable model; and a model evaluation part configured to prepare evaluation data, and use the evaluation data to select a champion model from among a plurality of evaluation target models including the seed model, the existing optimal model, and the variable model by evaluating the plurality of evaluation target models.Type: ApplicationFiled: December 19, 2022Publication date: July 6, 2023Inventors: Sang Gun NA, Hyun Sik KIM, Jun Woo YOO
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Publication number: 20230213898Abstract: A chemical dosing optimization apparatus includes a chemical dosing optimization part and a chemical dosing output control part, wherein the chemical dosing optimization part receives real-time data at least from a water treatment plant treating feed water by dosing a chemical and providing a treated water, analyzes the real-time data through a water treatment model in response to receiving the real-time data, derives a prediction value for predicting a state of the treated water of the water treatment plant, and derives a control value based on the prediction value through a controller, such that the control value is to set a minimum of a chemical dosage to be dosed in the feed water while the state of the treated water of the water treatment plant is maintained in a normal range, and wherein the chemical dosing output control part provides the control value to a water treatment control device.Type: ApplicationFiled: January 4, 2023Publication date: July 6, 2023Inventors: Sang Gun NA, Jae KWAK, Yeong Hyeok KIM, Jung Won PARK, Young Geun LEE, Hyun Sik KIM, Jun Woo YOO
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Publication number: 20230212033Abstract: An apparatus for controlling chemical dosing optimization in a water treatment plant treating feed water includes: a control value derivation part configured to receive real-time data, analyze the real-time data through a water treatment model and a controller in response to receiving the real-time data, and calculate a control value, such that the control value is to set a minimum of a chemical dosage while maintaining a state of treated water of the water treatment plant in a normal range, the water treatment model simulating the water treatment plant and the controller being an optimization algorithm; and a chemical dosing output control part configured to provide the control value to a water treatment control device.Type: ApplicationFiled: January 4, 2023Publication date: July 6, 2023Inventors: Sang Gun NA, Hyun Sik KIM, Jun Woo YOO, Yeong Hyeok KIM, Jung Won PARK, Young Geun LEE
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Publication number: 20230212032Abstract: An apparatus for controlling output in a water treatment plant treating water includes: a chemical dosing management part configured to analyze real-time data to determine a control mode of chemical dosing optimization, and provide the determined control mode as a management command; a chemical dosing optimization part configured to analyze the real-time data to derive a control value such that the control value is to set a minimum of a chemical dosage to be dose in the water while a state of treated water of the water treatment plant is maintained in a normal range; and a chemical dosing output control part configured to provide the control value to a water treatment control device for controlling the water treatment plant, according to the control mode of the management command.Type: ApplicationFiled: January 4, 2023Publication date: July 6, 2023Inventors: Sang Gun NA, Hyun Sik KIM, Jun Woo YOO, Yeong Hyeok KIM
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Patent number: 11657088Abstract: Users of a graph data store can access an index object for a graph structure in order to obtain information from objects in the graph data structured index by the index object. A query can be received that is directed to an index object. Links to a subset of data objects in the data store included in the index object can be used to access the subset of data objects to perform the query. In some embodiments, data objects can be manually added or removed from the links included in the index object.Type: GrantFiled: November 8, 2017Date of Patent: May 23, 2023Assignee: Amazon Technologies, Inc.Inventors: Alazel Acheson, Mahendra Manshi Chheda, Hyun Sik Kim, Srikanth Mandadi
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Patent number: 11628887Abstract: A vehicle body structure includes: a front pillar joined to a dash panel; a front side member extending from the dash panel toward the front of a vehicle; a side sill connected to a bottom end of the front pillar; a rear lower member connecting a rear portion of the front side member and a front portion of the side sill; and a connection member connecting at least two of the front pillar, the side sill, and the rear lower member.Type: GrantFiled: August 12, 2021Date of Patent: April 18, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Deok Hwa Hong, Hee Seouk Chung, Hyun Sik Kim, Byeong Cheon Lee
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Patent number: 11585732Abstract: An apparatus for diagnosing failure of a plant is provided. The apparatus for diagnosing failure of a plant includes: a data analyzer configured to provide data analysis information, which is information requiring analysis to diagnose failure of the plant, and a comprehensive diagnostic device configured to diagnose the failure using each of an algorithm-based diagnosing technique and a domain knowledge-based diagnosing technique based on the data analysis information, and to derive comprehensive diagnosis information for the failure by summarizing results of the algorithm-based diagnosing technique and the domain knowledge-based diagnosing technique.Type: GrantFiled: December 23, 2020Date of Patent: February 21, 2023Assignee: DOOSAN ENERBNITY CO., LTD.Inventors: Jee Hun Park, Hyun Sik Kim, Sang Gun Na, Jun Woo Yoo
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Patent number: 11545451Abstract: A semiconductor package includes a semiconductor chip having at least one chip pad disposed on one surface thereof; a wiring pattern disposed on top of the semiconductor chip and having at least a portion thereof in contact with the chip pad to be electrically connected to the chip pad; and a solder bump disposed on outer surface of the wiring pattern to be electrically connected to the chip pad through the wiring pattern.Type: GrantFiled: February 19, 2021Date of Patent: January 3, 2023Assignee: NEPES CO., LTD.Inventors: Hyun Sik Kim, Seung Hwan Shin, Yong Tae Kwon, Dong Hoon Seo, Hee Cheol Kim, Dong Soo Lee
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Patent number: 11526687Abstract: An apparatus and method for generating learning data for combustion optimization is provided. The apparatus includes a data pre-processor to collect raw data including currently measured real-time data for boiler combustion and previously measured past data for the boiler combustion, and to perform pre-processing for the collected raw data, and a data analyzer to derive learning data from the raw data by analyzing the raw data. An apparatus for combustion optimization includes a management layer to collect currently measured real-time data for boiler combustion, to determine whether to perform combustion optimization, and to determine whether to tune a combustion model and a combustion controller; a data layer to derive learning data from raw data; a model layer to generate the combustion model/controller through the learning data; and an optimal layer to calculate a target value for combustion optimization and to output a control signal according to the calculated target value.Type: GrantFiled: September 17, 2019Date of Patent: December 13, 2022Assignee: DOOSAN ENERBILITYTY CO., LTD.Inventors: Hyun Sik Kim, Sang Gun Na, Jee Hun Park
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Publication number: 20220379972Abstract: A lower cross member for a vehicle is disposed on a floor of a vehicle. The lower cross member includes a core member and a reinforcing layer. The core member is made of a composite material containing 70 wt. % or more of unidirectional carbon fibers, and the reinforcing layer is made of a composite material containing 70 wt. % or more of fiberglass.Type: ApplicationFiled: November 17, 2021Publication date: December 1, 2022Inventors: Sang Yoon PARK, Seung Chan LEE, Yong Beom LEE, Pil Won KANG, Hyun Sik KIM, Sang Sun PARK, Hee Seouk CHUNG, Seung Uk KANG, Chi Hoon CHOI, Seong Jong KIM, Dong Won KIM
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Publication number: 20220335871Abstract: An output buffer is disclosed that includes: a buffer circuit that outputs an output signal to an output terminal based on a first input signal provided to a first input terminal and a second input signal provided to a second input terminal; and a current supply circuit that is connected in parallel to the buffer circuit, and provides an auxiliary current to the output terminal based on the first input signal and the second input signal.Type: ApplicationFiled: October 13, 2021Publication date: October 20, 2022Inventors: Seong Joo LEE, Seok Tae KOH, Gyeong Gu KANG, Oh Jo KWON, Hyun Sik KIM, Gyu Wan LIM, Keum Dong JUNG