Patents by Inventor Ho-seok Choi
Ho-seok 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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Patent number: 11968521Abstract: An audio apparatus includes a signal receiver configured to receive a left-channel signal and a right-channel signal of a stereo audio signal; at least one filter configured to block a signal in a band exceeding a predetermined frequency based on the frequency bands of each of the received left-channel signal and right-channel signal; and a controller configured to generate a center-channel signal of the stereo audio signal based on the left-channel signal and the right-channel signal passing through the filter, to calculate a signal level sensitivity between the left-channel signal and the right-channel signal passing through the filter, to determine a similarity between the left-channel signal and the right-channel signal based on the calculated signal level sensitivity, and to control the generated center-channel signal to be output in response to the determined similarity.Type: GrantFiled: August 8, 2019Date of Patent: April 23, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ho Seok Wey, Min Kim, Tae Woo Kim, Young Jo Seo, Sang-Il Choi
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Patent number: 11962073Abstract: The present disclosure relates to an antenna apparatus for a base station and an adapter thereof and particularly comprises: an antenna module vertically installed to be spaced forward from a support pole by a predetermined distance so as to have a distancing space therebetween; an RRH installed on the antenna module to be positioned in the distancing space, wherein one of the upper end and the lower end thereof is hinge-coupled to the antenna module and the other of the upper end and the lower end thereof is attached to or detached from a part of the antenna module to enable electrical signal connection or disconnection while being rotated around the hinge; and an adapter for mediating the electrical signal connection and disconnection between the antenna module and the RRH. Therefore, the present disclosure provides advantages of reducing installation time and installation costs.Type: GrantFiled: January 27, 2021Date of Patent: April 16, 2024Assignee: KMW INC.Inventors: Seong Man Kang, Dae Myung Park, Hyoung Seok Yang, In Ho Kim, Kwang Seok Choi
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Patent number: 11923562Abstract: A battery module includes: a battery cell assembly having a plurality of battery cells; a top plate configured to cover an upper side of the battery cell assembly; a bottom plate configured to cover a lower side of the battery cell assembly; a sensing assembly disposed to cover a front side and a rear side of the battery cell assembly; a pair of side plates disposed at side surfaces, respectively, of the battery cell assembly; and a pair of compression pads disposed between the pair of side plates and the battery cell assembly, respectively.Type: GrantFiled: November 1, 2022Date of Patent: March 5, 2024Assignee: LG Energy Solution, Ltd.Inventors: Sung-Won Seo, Dong Yeon Kim, Ho-June Chi, Dal-Mo Kang, Jin-Hak Kong, Jeong-O Mun, Yoon-Koo Lee, Yong-Seok Choi, Alexander Eichhorn, Andreas Track
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Patent number: 10270250Abstract: An insulation design apparatus performing the insulation design of a high voltage direct current (HVDC) transmission system is provided. The insulation design apparatus includes a first insulation model generation unit; a second insulation model generation unit; an insulation verification unit, wherein the second insulation model generation unit selects the positions of each facility, device and arrester of the HVDC transmission system through a system single line diagram to select a representative facility in the HVDC transmission system, divides the HVDC transmission system into the plurality of regions based on the selected representative facility, and generates an insulation model for each region.Type: GrantFiled: July 7, 2015Date of Patent: April 23, 2019Assignee: LSIS CO., LTD.Inventors: Ho Seok Choi, Yong Kil Choi
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Patent number: 10186874Abstract: The present disclosure relates to a high-voltage direct current (HVDC) transmission system, and particularly, to an HVDC transmission system control device associated with a power generation energy system. An HVDC transmission system control device according to an embodiment includes a wind power generation amount predicting unit configured to receive energy generated by a wind power generation device for a predetermined time, and predict a wind power generation amount on the basis of the received energy, a possible power generation amount predicting unit configured to determine an amount of energy generated by the wind power generation device and a transmission capacity corresponding to the amount of energy, on the basis of the predicted wind power generation amount, and a control unit configured to output energy to a power transformation device on the basis of the amount of energy and the transmission capacity predicted by the possible power generation amount predicting unit.Type: GrantFiled: May 4, 2015Date of Patent: January 22, 2019Assignee: LSIS CO., LTD.Inventors: Yong Kil Choi, Ho Seok Choi
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Patent number: 10056825Abstract: A control apparatus in a static VAR compensator (SVC) system includes a plurality of current supply units for supplying phase currents configuring three-phase current of a power system, a plurality of current sensors for measuring the phase currents, and a controller for determining whether unbalance occurs in the three-phase current based on the phase currents, calculating an error corresponding to the unbalance according to the phase currents if unbalance occurs, and individually controlling at least one of the plurality of current supply units so as to compensate for the error.Type: GrantFiled: January 21, 2017Date of Patent: August 21, 2018Assignee: LSIS CO., LTD.Inventor: Ho Seok Choi
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Publication number: 20170373504Abstract: Disclosed herein are a system and method for efficient regulation of electric power of a gas refill center capable of enabling efficient operation of a natural gas generator and electric power storage means provided to the gas refill center while reducing electric utility charges by reducing the power consumption amount and the peak electric power produced by operation of a compressor of a high load device using the natural gas generator and the power storage means.Type: ApplicationFiled: December 6, 2016Publication date: December 28, 2017Applicant: ECOPLUS CO.,LTD.Inventors: Jong-Ho WOO, Ho-Seok CHOI
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Publication number: 20170214315Abstract: A control apparatus in a static VAR compensator (SVC) system includes a plurality of current supply units for supplying phase currents configuring three-phase current of a power system, a plurality of current sensors for measuring the phase currents, and a controller for determining whether unbalance occurs in the three-phase current based on the phase currents, calculating an error corresponding to the unbalance according to the phase currents if unbalance occurs, and individually controlling at least one of the plurality of current supply units so as to compensate for the error.Type: ApplicationFiled: January 21, 2017Publication date: July 27, 2017Applicant: LSIS CO., LTD.Inventor: Ho Seok CHOI
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Patent number: 9612275Abstract: A power device having a current transformer according to an embodiment includes: first to Nth current transformers; an integrated measurement panel connected to the first to Nth transformers and configured to measure actual current values of locations where the first to Nth transformers are installed using current values detected by the first to Nth transformers, wherein the integrated measurement panel stores compensation values for compensating errors of linearity characteristics of the first to Nth current transformers, and measures the actual current values by applying the stored compensation values.Type: GrantFiled: October 27, 2014Date of Patent: April 4, 2017Assignee: LSIS CO., LTD.Inventors: Yong Kil Choi, Ho Seok Choi
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Patent number: 9606169Abstract: A method of verifying a protection apparatus is provided. The method includes: setting a plurality of relay elements for sensing an abnormal state of the protection apparatus; receiving an input regarding test information for testing each of the plurality of relay elements; and when at least one of the plurality of relay elements is in an abnormal state from the reception of the input regarding the test information, identifying whether the protection apparatus has created an abnormal state sensing signal.Type: GrantFiled: June 23, 2014Date of Patent: March 28, 2017Assignee: LSIS CO., LTD.Inventors: Ho Seok Choi, Yong Kil Choi
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Publication number: 20160149508Abstract: An insulation design apparatus performing the insulation design of a high voltage direct current (HVDC) transmission system is provided. The insulation design apparatus includes a first insulation model generation unit; a second insulation model generation unit; an insulation verification unit, wherein the second insulation model generation unit selects the positions of each facility, device and arrester of the HVDC transmission system through a system single line diagram to select a representative facility in the HVDC transmission system, divides the HVDC transmission system into the plurality of regions based on the selected representative facility, and generates an insulation model for each region.Type: ApplicationFiled: July 7, 2015Publication date: May 26, 2016Applicant: LSIS CO., LTD.Inventors: Ho Seok CHOI, Yong Kil CHOI
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Publication number: 20160099652Abstract: A high voltage direct current (HVDC) transmission system is provided. The high voltage direct current (HVDC) transmission system includes: a first power transceiving part consuming power generated by a power generation part, storing the generated power, and outputting the generated power or stored power to a second power transceiving part; a second power transceiving part consuming power generated by a power generation part, storing the generated power and outputting the generated power or stored power to the first power transceiving part; and a control part controlling the power transmission and reception of the first power transceiving part and the second power transceiving part.Type: ApplicationFiled: July 28, 2015Publication date: April 7, 2016Applicant: LSIS CO., LTD.Inventors: YONG KIL CHOI, HO SEOK CHOI
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Publication number: 20150331967Abstract: Provided is an apparatus for an insulation design. The apparatus for the insulation design, which performs the insulation design of a high voltage direct current (HVDC) transmission system, includes an insulation design part, a lighting arrester modeling part, a simulation test part, a comparison part, and a result output part.Type: ApplicationFiled: April 24, 2015Publication date: November 19, 2015Applicant: LSIS CO., LTD.Inventors: YONG KIL CHOI, HO SEOK CHOI
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Publication number: 20150333525Abstract: The present disclosure relates to a high-voltage direct current (HVDC) transmission system, and particularly, to an HVDC transmission system control device associated with a power generation energy system. An HVDC transmission system control device according to an embodiment includes a wind power generation amount predicting unit configured to receive energy generated by a wind power generation device for a predetermined time, and predict a wind power generation amount on the basis of the received energy, a possible power generation amount predicting unit configured to determine an amount of energy generated by the wind power generation device and a transmission capacity corresponding to the amount of energy, on the basis of the predicted wind power generation amount, and a control unit configured to output energy to a power transformation device on the basis of the amount of energy and the transmission capacity predicted by the possible power generation amount predicting unit.Type: ApplicationFiled: May 4, 2015Publication date: November 19, 2015Applicant: LSIS CO., LTD.Inventors: Yong Kil CHOI, Ho Seok CHOI
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Publication number: 20150309096Abstract: A high voltage direct current (HVDC) instantaneous power monitoring system is provided. The high voltage direct current (HVDC) instantaneous power monitoring system includes a calculation processing unit receiving three-phase current and voltage, detecting a synchronous phase angle from received three-phase current and voltage, and transforming two-phase data into two-phase data to output two-phase data; and a data processing unit storing data transformed at the calculation processing unit.Type: ApplicationFiled: March 17, 2015Publication date: October 29, 2015Applicant: LSIS CO., LTD.Inventor: HO SEOK CHOI
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Publication number: 20150160288Abstract: A power device having a current transformer according to an embodiment includes: first to Nth current transformers; an integrated measurement panel connected to the first to Nth transformers and configured to measure actual current values of locations where the first to Nth transformers are installed using current values detected by the first to Nth transformers, wherein the integrated measurement panel stores compensation values for compensating errors of linearity characteristics of the first to Nth current transformers, and measures the actual current values by applying the stored compensation values.Type: ApplicationFiled: October 27, 2014Publication date: June 11, 2015Applicant: LSIS CO., LTD.Inventors: Yong Kil CHOI, Ho Seok CHOI
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Publication number: 20150008935Abstract: A method of verifying a protection apparatus is provided. The method includes: setting a plurality of relay elements for sensing an abnormal state of the protection apparatus; receiving an input regarding test information for testing each of the plurality of relay elements; and when at least one of the plurality of relay elements is in an abnormal state from the reception of the input regarding the test information, identifying whether the protection apparatus has created an abnormal state sensing signal.Type: ApplicationFiled: June 23, 2014Publication date: January 8, 2015Applicant: LSIS CO., LTD.Inventors: Ho Seok CHOI, Yong Kil CHOI
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Patent number: 8804098Abstract: Example embodiments are directed to a maskless exposure apparatus that generates and/or corrects exposure data using at least one information of intensity information, central position information, focus information, and/or shape information of a plurality of beams acquired using a measurement optical unit, and a control method thereof. The maskless exposure apparatus includes the measurement optical unit including a photo sensor and an image sensor, and a control unit configured to generate and/or correct the exposure data using the information acquired by the measurement optical unit.Type: GrantFiled: December 17, 2010Date of Patent: August 12, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Dong Seok Baek, Sang Don Jang, Ho Seok Choi, Hi Kuk Lee, Oui Serg Kim
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Patent number: 8675180Abstract: Example embodiments are directed to a maskless exposure device and an alignment method. The alignment method performs an overlay of each layer of a plurality of layers on a substrate using a virtual mask in a maskless exposure technique. The maskless exposure device and the alignment method use a virtual mask instead of a physical mask used in a conventional mask exposure, a virtual target mark instead of an alignment mark used in the conventional mask exposure, and perform an overlay per layer, such that the deposition exposure can be achieved in the maskless exposure.Type: GrantFiled: March 31, 2011Date of Patent: March 18, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Sung Min Ahn, Ho Seok Choi, Sang Don Jang
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Patent number: 8608400Abstract: According to an example embodiment, a position arrangement device includes at least one joint module between a first base and a second base. The at least one joint module is configured to adjust a position of the second base relative to the first base based on elastic flexion in the joint module.Type: GrantFiled: December 2, 2011Date of Patent: December 17, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Sang Joon Hong, In Bae Jang, Sang Hyun Park, Ho Seok Choi