Patents by Inventor Seong-hyeon CHOI
Seong-hyeon 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).
-
Patent number: 11563400Abstract: An iron loss reduction control apparatus for motor permanent magnet overtemperature protection is provided. The apparatus includes: a permanent magnet temperature prediction unit configured to predict a temperature of a permanent magnet in a motor based on a driving state of the motor; a first iron loss reduction unit configured to adjust a switching frequency of a switching element in an inverter providing a driving power to the motor based on the temperature of the permanent magnet; and a second iron loss reduction unit configured to adjust a current command of the motor based on the temperature of the permanent magnet.Type: GrantFiled: July 29, 2021Date of Patent: January 24, 2023Assignees: Hyundai Motor Company, Kia CorporationInventors: Tae Il Yoo, Seong Min Kim, Seon Mi Lee, Ho Sun Jang, Ho Rim Choi, Han Hee Park, Seung Hyeon Bin
-
Publication number: 20230017062Abstract: The present disclosure relates to a system for controlling a motor of a vehicle for increasing control accuracy of the motor for driving the vehicle, and an object of the present disclosure is to provide a system for controlling a motor of a vehicle, which may accurately perform a motor control even when a battery voltage (i.e., motor voltage) applied to the motor upon the driving control of the motor is changed.Type: ApplicationFiled: July 13, 2022Publication date: January 19, 2023Applicants: Hyundai Motor Company, Kia CorporationInventors: Ho Sun Jang, Han Hee Park, Seong Min Kim, Ho Rim Choi, Seon Mi Lee, Tae Il Yoo, Seung Hyeon Bin
-
Patent number: 11545923Abstract: A motor driving apparatus may include a first inverter circuit including a plurality of first switching devices and connected to a first end portion of each of a plurality of windings in a motor corresponding to a plurality of phases of the motor, respectively, a second inverter circuit including a plurality of second switching devices and connected to a second end portion of each of the plurality of windings, and a plurality of selection switching devices having first end portions connected to a node to which the plurality of windings and the plurality of second switching devices are connected and second end portions connected to each other.Type: GrantFiled: July 22, 2021Date of Patent: January 3, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Ho Rim Choi, Han Hee Park, Seong Min Kim, Seon Mi Lee, Ho Sun Jang, Tae Il Yoo, Seung Hyeon Bin
-
Patent number: 11526201Abstract: A panel bottom sheet includes: a first heat dissipation layer; a second heat dissipation layer having circumferential side surfaces located further inside than circumferential side surfaces of the first heat dissipation layer in a plan view, the second heat dissipation layer including: a main heat dissipation pattern including a first opening formed completely through the second heat dissipation layer in a thickness direction; and a heat dissipation substrate disposed directly on the second heat dissipation layer.Type: GrantFiled: July 8, 2020Date of Patent: December 13, 2022Assignee: Samsung Display Co., Ltd.Inventors: Kang Woo Lee, Boo Kan Ki, June Hyoung Park, Sun Hee Oh, Dong Hyeon Lee, Jeong In Lee, Hyuk Hwan Kim, Seong Sik Choi
-
Publication number: 20220393622Abstract: An automotive motor driving apparatus includes: a first motor including a plurality of wires; and a second motor including a plurality of wires including first ends connected to each other. The motor driving apparatus includes: a first inverter connected to first ends of the wires of the motor and including a plurality of first switching devices; a second inverter connected to second ends of the wires of the first motor and including a plurality of second switching devices; a third inverter connected to second ends of the wires of the second motor; and a controller configured to drive the second motor by performing pulse width control on the third switching devices when a problem occurs in the second inverter while driving the first motor in an open end winding mode in which pulse width modulation control is performed on both of the first switching devices and the second switching devices.Type: ApplicationFiled: March 17, 2022Publication date: December 8, 2022Applicants: Hyundai Motor Company, Kia CorporationInventors: Seung Hyeon BIN, Han Hee PARK, Seong Min KIM, Ho Rim CHOI, Seon Mi LEE, Sang Woo PARK, Tae Il YOO, Ho Sun JANG
-
Publication number: 20220384122Abstract: A cover type touch switch structure includes: a seat housing embedded in a seat of a vehicle so as to be fastened to a seat frame; a switch housing disposed in the seat housing and including an outer surface which is coupled to the seat housing via a hook; a light-emitting unit which is disposed in the switch housing and stacked on the seat frame; and a knob unit which has a portion disposed in the switch housing and is stacked on the light-emitting unit.Type: ApplicationFiled: May 19, 2022Publication date: December 1, 2022Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Seong Hyeon Shin, Jung Sang You, Ju Hyun Cha, Sang Hyun Lee, Seon Chae Na, Sang Ho Kim, Byung Yong Choi, Hyeok Lee, Seong Kwon Go, Chong Hwan Jeon
-
Patent number: 11504087Abstract: Provided is an ultrasound diagnostic apparatus including a probe configured to induce displacement in tissue of an object by irradiating a first focused beam of a first frequency to the object; and a processor configured to obtain a first ultrasound image of the object in which displacement has been induced; to determine whether the induced displacement is appropriate based on the obtained first ultrasound image; when the induced displacement is not appropriate, to control the probe to irradiate a second focused beam of a second frequency different from the first frequency to the object, so as to induce displacement in the tissue of the object; and to process a second ultrasound image of the object in which displacement has been induced by the second focused beam.Type: GrantFiled: November 4, 2016Date of Patent: November 22, 2022Assignee: SAMSUNG MEDISON CO., LTD.Inventors: Dong-geon Kong, Seong-hyeon Choi, Hyoung-ki Lee
-
Patent number: 11508386Abstract: An inventive concept relates to an audio coding method to which CNN-based frequency spectrum recovery is applied. An inventive concept transmits a part of frequency spectral coefficients generated in transform coding to a decoder and the decoder recovers the frequency spectral coefficient not transmitted. Furthermore, the signs of frequency spectral coefficient are transmitted from an encoder to the decoder depending on a sign transmission rule.Type: GrantFiled: April 8, 2020Date of Patent: November 22, 2022Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Hochong Park, Seung Kwon Beack, Jongmo Sung, Seong-Hyeon Shin, Mi Suk Lee, Tae Jin Lee, Jin Soo Choi
-
Patent number: 11501711Abstract: A display device includes: a (k?1)-th scan line and a k-th scan line which are parallel to each other; a j-th data line which crosses the (k?1)-th scan line and the k-th scan line; and a subpixel connected to the (k?1)-th scan line, the k-th scan line, and the j-th data line, wherein the subpixel includes: a driving transistor configured to control a driving current flowing from a first electrode thereof to a second electrode thereof according to a data voltage applied to a first gate electrode thereof, the driving transistor having a second gate electrode connected to the (k?1)-th scan line; and a light emitting element configured to emit light according to the driving current.Type: GrantFiled: June 19, 2020Date of Patent: November 15, 2022Assignee: Samsung Display Co., Ltd.Inventors: Young In Hwang, Sung Ho Kim, Eung Taek Kim, Joo Hyeon Jo, Jung Mi Choi, Seong Baik Chu
-
Patent number: 11491902Abstract: A device for adjusting a position of a headrest for a vehicle includes: a stay mounted on a seatback frame; a main frame including a rotation guide hole, inserted into and mounted on the stay, and configured to ascend or descend along the stay; an elevation device mounted on the main frame and the stay, and configured to allow the main frame to ascend or descend along the stay; a rotating frame including a first end portion inserted into the stay and configured to ascend or descend along the stay, and a second end portion extending toward the rotation guide hole of the main frame; a rotating device mounted on the rotating frame and the rotation guide hole of the main frame, and configured to rotate the rotating frame along the rotation guide hole; and a headrest frame assembled to the rotating frame.Type: GrantFiled: July 1, 2021Date of Patent: November 8, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Seong Hyeon Shin, Sang Hyun Lee, Seong Mun Yun, Seon Chae Na, Byung Yong Choi, Sang Ho Kim, Hyeong Jong Kim
-
Patent number: 11458819Abstract: A flush glass apparatus includes an operation glass including a glass portion and a frame, and a locking device including an operation handle installed on the frame, an upper lifting member installed on an upper side of the frame and including an upper cam groove and an upper locking pin, an upper operation shaft having a lower side connected to the operation handle and an upper side entering the upper cam groove and including an upper protrusion, an upper spring, a lower lifting member installed on a lower side of the frame and including a lower cam groove and a lower locking pin protruding to the lower side of the frame, a lower operation shaft having an upper side connected to the operation handle and a lower side entering the lower cam groove and including a lower protrusion, and a lower spring.Type: GrantFiled: September 29, 2020Date of Patent: October 4, 2022Assignees: Hyundai Motor Company, Kia Motors Corporation, Webasto Korea Holdings Ltd.Inventors: Jeong Hyeon Kim, Seong Min Gwak, Su Yun Choi
-
Publication number: 20220302441Abstract: A method of manufacturing a composite electrode for an all-solid-state battery includes: preparing a precursor solution by mixing at least one solid electrolyte precursor and at least one polar solvent; stirring the precursor solution; preparing an electrode slurry by adding an active material to the stirred precursor solution; and heat-treating the electrode slurry and obtaining the composite electrode for the all-solid-state battery, wherein the composite electrode for the all-solid-state battery includes: the active material; and a coating layer disposed on the active material and including a solid electrolyte.Type: ApplicationFiled: August 20, 2021Publication date: September 22, 2022Applicants: HYUNDAI MOTOR COMPANY, Kia CorporationInventors: Sun Ho CHOI, Yong Jun JANG, In Woo SONG, Sang Heon LEE, Sang Soo LEE, So Young KIM, Seong Hyeon CHOI, Sa Heum KIM, Jae Min LIM
-
Publication number: 20220267149Abstract: A method of manufacturing a sulfide-based solid electrolyte, includes mixing a raw material with an organic solvent to manufacture a mixed solution; a heating step of heating and agitating the mixed solution; a cooling step of cooling and agitating the heated mixed solution; a re-heating step of heating and agitating the cooled mixed solution; and a heat treatment step, effectively synthesizing a sulfide-based solid electrolyte by heating and cooling a mixed solution containing a raw material in an organic solvent to a predetermined temperature.Type: ApplicationFiled: February 18, 2022Publication date: August 25, 2022Applicants: HYUNDAI MOTOR COMPANY, Kia CorporationInventors: Sun Ho Choi, Yong Jun Jang, In Woo Song, Sang Soo Lee, So Young Kim, Seong Hyeon Choi, Sa Heum Kim, Sang Heon Lee
-
Patent number: 11398528Abstract: A display panel may include a first OLED disposed in a first sub-pixel region and emitting light of a first color, a second OLED disposed in a second sub-pixel region and emitting light of a second color, a third OLED disposed in a third sub-pixel region and emitting light of a third color, a fourth OLED disposed in a fourth sub-pixel region and emitting light of the second color, a first sub-pixel circuit disposed in the first sub-pixel region and driving the third OLED in the third sub-pixel region, a second sub-pixel circuit disposed in the second sub-pixel region and driving the first OLED in the first sub-pixel region, a third sub-pixel circuit disposed in the third sub-pixel region and driving the fourth OLED in the fourth sub-pixel region, and a fourth sub-pixel circuit disposed in the fourth sub-pixel region and driving the second OLED in the second sub-pixel region.Type: GrantFiled: July 2, 2020Date of Patent: July 26, 2022Assignee: Samsung Display Co., Ltd.Inventors: Young-In Hwang, Eung Taek Kim, Yong Ho Yang, Seong Min Wang, Joo Hyeon Jo, Jung-Mi Choi, Seong Baik Chu
-
Publication number: 20220203847Abstract: An apparatus for controlling charging of an electric vehicle is configured to calculate a rotor torque expected to occur during charging based on an angle of a rotor provided in a driving motor before charging is performed by multiple input voltages, and allow charging to be performed after inducing the rotor torque to be less than a reference torque by moving the electric vehicle a specified distance to correct the rotor angle when the calculated rotor torque is greater than the reference torque so as to avoid deterioration or damage to a parking sprag.Type: ApplicationFiled: November 17, 2021Publication date: June 30, 2022Inventors: Seung Hyeon Bin, Han Hee Park, Ho Sun Jang, Ho Rim Choi, Tae II Yoo, Seong Min Kim
-
Publication number: 20220125412Abstract: Provided is an ultrasonic imaging apparatus capable of obtaining a more accurate shear wave elastic image by removing inefficient areas such as blood vessels using a shear wave observation signal in a section where an object is not affected by a push pulse, and a method for controlling the same.Type: ApplicationFiled: July 25, 2019Publication date: April 28, 2022Inventors: Ji Young Park, Ki Wan Choi, Seong Hyeon Choi
-
Publication number: 20190296336Abstract: Provided is a composite anode active material including: a carbonaceous material; a metal alloyable with lithium, located on a surface of the carbonaceous material; and a silicon coating layer located on a surface of the carbonaceous material, on a surface of the metal alloyable with lithium, or a combination thereof.Type: ApplicationFiled: November 3, 2017Publication date: September 26, 2019Applicant: UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)Inventors: Jaephil Cho, Jaekyung Sung, Seong Hyeon Choi, Jiyoung MA, Yoonkwang Lee
-
Publication number: 20190125300Abstract: Provided is an ultrasound diagnostic apparatus including a probe configured to induce displacement in tissue of an object by irradiating a first focused beam of a first frequency to the object; and a processor configured to obtain a first ultrasound image of the object in which displacement has been induced; to determine whether the induced displacement is appropriate based on the obtained first ultrasound image; when the induced displacement is not appropriate, to control the probe to irradiate a second focused beam of a second frequency different from the first frequency to the object, so as to induce displacement in the tissue of the object; and to process a second ultrasound image of the object in which displacement has been induced by the second focused beam.Type: ApplicationFiled: November 4, 2016Publication date: May 2, 2019Inventors: Dong-geon KONG, Seong-hyeon CHOI, Hyoung-ki LEE