Patents by Inventor Youngchang An

Youngchang An 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: 11966288
    Abstract: In an electronic apparatus, a processor executes a program stored in memory to perform essential functions. In the event of an error related to these functions, a self-test application is triggered. The processor may identify a relevant test routine from a set of routines, conduct tests on the function using the identified routine, and communicate the test results to a display. Accordingly, when an error occurs while the electronic apparatus is operating, the electronic apparatus can inform a user and a manufacturer of a cause of the error.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: April 23, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jaehoon Kim, Sungjun Kim, Kyuseon Son, Seunghee Shin, Myunggyun Yoon, Youngchang Lee
  • Publication number: 20240128625
    Abstract: The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transmission rate than a 4th generation (4G) communication system such as Long-Term Evolution (LTE). The present disclosure provides a device for variable signal attenuation equipped in a stack-up structure inside an RFIC. The device for signal attenuation comprises: a first transmission line positioned on a first layer inside the RFIC; a second transmission line positioned on a second layer, which is adjacent to the first layer, and electromagnetically coupled to the first transmission line; and a control unit. The first transmission line comprises an impedance control unit on one side. The control unit can variably control the impedance control unit.
    Type: Application
    Filed: October 16, 2020
    Publication date: April 18, 2024
    Inventors: Donggyu MINN, Youngchang YOON, Daehyun KANG, Kyuhwan AN
  • Patent number: 11768164
    Abstract: The invention provides a device for immobilizing and shipping crystals and for data collection via serial crystallography, the device having a first planar substrate defining a first transversely extending aperture, wherein the first substrate has a first laterally facing surface; a second planar substrate defining a second transversely extending aperture coaxial with the first aperture, wherein the second substrate has a second laterally facing surface; a third planar substrate and a fourth planar substrate positioned between the first and second substrates such that the first planar substrate, the second planar substrate, the third planar substrate and the fourth planar substrate are parallel; and a means for reversibly applying axial pressure to the first and second laterally facing surfaces so as to compress the third and fourth substrates together.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: September 26, 2023
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Alex A Lavens, Gyorgy Babnigg, Darren A. Sherrell, Andrzej Joachimiak, Youngchang Kim, Jessica L Johnson
  • Publication number: 20230266022
    Abstract: A humidification module and an electronic apparatus including the same are provided. The humidification module includes a supply part supplying water, a droplet generation part generating droplets by using the water supplied through the supply part, and a blowing part discharging the generated droplets to the outside, the droplet generation part includes a nozzle part including a plurality of nozzles spraying the water supplied through the supply part, and an electrode part including a substrate on which a plurality of holes corresponding to the plurality of respective nozzles are formed and electrodes arranged around the plurality of holes for supplying a voltage to the plurality of nozzles, and the plurality of respective nozzles are arranged to penetrate the corresponding holes.
    Type: Application
    Filed: April 17, 2023
    Publication date: August 24, 2023
    Inventors: Youngchang SEO, Hyejin LIM, Jongchan KWON, Youngmok PARK
  • Patent number: 11709196
    Abstract: The disclosure relates to an RFIC apparatus, and more particularly, to an RFIC circuit having a test circuit, a test apparatus, and a test method thereof. Further, the disclosure relates to a method for estimating or determining a DC gain using a test apparatus and an RF circuit in a DC/AC test stage, and detecting defects of the RF circuit based on the estimated or determined DC gain.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: July 25, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Donggyu Minn, Daehyun Kang, Yonghoon Kim, Jihoon Kim, Hyundo Ryu, Jeeho Park, Sunggi Yang, Youngchang Yoon, Sehyug Jeon
  • Publication number: 20230201235
    Abstract: Provided is a method of treating a disease caused by a nidovirus that encodes Nsp15, such as a coronavirus, an arterivirus, or a torovirus, in a subject in need thereof comprising administering a therapeutically effective amount of an active agent selected from 3?-uridylic acid, 5?-uridylic acid, citrate, methacycline, meclocycline sulfosalicylate, mitoxantrone, epirubicin hydrochloride, daunorubicin hydrochloride, sorafenib, sunitinib malate, primaquine diphosphate, closantel, isopropyl ester of N4-hydroxycytidine, GpU dinucleotide or derivatives thereof, and tipiracil or N-substituted derivatives thereof. Further provided are a method of inhibiting an Nsp15 endoribonuclease of a nidovirus that encodes Nsp15 and compounds of formulas (I?) and (II?).
    Type: Application
    Filed: March 11, 2021
    Publication date: June 29, 2023
    Applicants: The University of Chicago, UChicago Argonne, LLC, Auburn University
    Inventors: Youngchang Kim, Natalia Ivanovna Maltseva, Robert Jedrzejczak, Andrzej Joachimiak, Jacek Wower, Glenn Randall
  • Publication number: 20230188166
    Abstract: A 5th generation (5G) or pre-5G communication system for supporting a higher data rate than previous 4th generation (4G) communication systems is provided. A switching circuit in a wireless communication system is provided. The switching circuit includes a first coil, a second coil electrically coupled to the first coil, a first switch electrically connected to the second coil, a third coil electrically coupled to the first coil, a second switch electrically connected to the third coil, and a control unit configured to control the opening or closing of the first switch and the second switch. The control unit can be configured to close the first switch and open the second switch to form a first path using the first coil and the second coil, and open the first switch and close the second switch to form a second path using the first coil and the third coil.
    Type: Application
    Filed: February 6, 2023
    Publication date: June 15, 2023
    Inventors: Jihoon KIM, Youngchang YOON, Donghyun LEE
  • Patent number: 11677353
    Abstract: A variable capacitor circuit includes a capacitor block including a first varactor element comprising a first transistor having a first size, a second varactor element comprising a second transistor having a second size different from the first size, a first terminal commonly connected to a source and a drain of the first transistor, a second terminal commonly connected to a source and a drain of the second transistor, and an RC circuit connected to a gate of the first transistor and a gate of the second transistor.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: June 13, 2023
    Inventors: Yongchang Choi, Sungjoon Park, Hyoeun Park, Youngchang An, Hyotae Choo, Somin Lee
  • Publication number: 20230170907
    Abstract: Disclosed is an inverter which includes a first P-MOS transistor connected between a node receiving a drain voltage and a first path node and operated based on an input voltage, a first N-MOS transistor connected between the first path node and an output terminal outputting an output voltage and operated based on the drain voltage, a second P-MOS transistor connected between the output terminal and a second path node and operated based on a ground voltage, a second N-MOS transistor connected between the second path node and a node receiving the ground voltage and operated based on the input voltage, a third P-MOS transistor connected between the first path node and the second path node and operated based on the input voltage, and a third N-MOS transistor connected between the first path node and the second path node and operated based on the input voltage.
    Type: Application
    Filed: November 30, 2022
    Publication date: June 1, 2023
    Applicant: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION
    Inventors: Seokhyeong KANG, Youngchang CHOI, Sunmean KIM, Kyongsu LEE
  • Publication number: 20220311382
    Abstract: A variable capacitor circuit includes a capacitor block including a first varactor element comprising a first transistor having a first size, a second varactor element comprising a second transistor having a second size different from the first size, a first terminal commonly connected to a source and a drain of the first transistor, a second terminal commonly connected to a source and a drain of the second transistor, and an RC circuit connected to a gate of the first transistor and a gate of the second transistor.
    Type: Application
    Filed: December 1, 2021
    Publication date: September 29, 2022
    Inventors: Yongchang Choi, Sungjoon Park, Hyoeun Park, Youngchang An, Hyotae Choo, Somin Lee
  • Publication number: 20220283512
    Abstract: A correcting apparatus of an extreme ultraviolet (EUV) photomask includes: a support portion configured to support an EUV photomask having a main area in which a plurality of pattern elements are arranged, a chemical supply unit configured to supply a chemical to the main area, a light source unit configured to generate a laser beam, and a control unit configured to irradiate the laser beam to the chemical supplied to the main area of the EUV photomask and to, based a laser dosage map for correcting critical dimensions (CDs) of the plurality of pattern elements in the main area, adjust a dosage of the laser beam based on the laser dosage map such that among the plurality of pattern elements, pattern elements having different critical dimensions are etched at different etching rates.
    Type: Application
    Filed: October 22, 2021
    Publication date: September 8, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sanguk PARK, Yongwoo KIM, Jongju PARK, Youngchang SEO, Jongkeun OH
  • Publication number: 20220253353
    Abstract: An electronic apparatus includes: a processor configured to implement at least one function of the electronic apparatus by executing a program stored in a memory; execute a self-test application provided for a self-test of an error in response to occurrence of the error related to the function, and identify a test routine for the error among one or more test routines; obtain a test result of the error by testing the function based on the identified test routine, and output information about the obtained test result to a display.
    Type: Application
    Filed: February 10, 2022
    Publication date: August 11, 2022
    Inventors: Jaehoon KIM, Sungjun KIM, Kyuseon SON, Seunghee SHIN, Myunggyun YOON, Youngchang LEE
  • Patent number: 11387509
    Abstract: A secondary battery is disclosed. In one aspect, the secondary battery includes an electrode assembly, a case accommodating the electrode assembly and a lead member extending from the electrode assembly to outside of the case. The secondary battery also includes an insulation member at least partially covering the lead member, the insulation member having an exterior portion that is located outside the case and an interior portion that is located inside the case, wherein the interior portion has a first thickness, and wherein at least part of the exterior portion has a second thickness less than the first thickness. The secondary battery may have a compact structure, and insulation characteristics of the secondary battery may be improved.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: July 12, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seunghee Park, Jeawoan Lee, Youngchang Lim, Euysun Jung, Soomi Eo, Kyunghoon Cho, Kyung Kim, Kwonchul Kim, Jaemin Im
  • Patent number: 11361899
    Abstract: An apparatus is provided. The apparatus includes an electronic circuit for processing a differential signal. A device including an electronic circuit may include a first inductor and a second inductor that process a differential signal, a first circuit connected to the first inductor in parallel, a second circuit connected to the second inductor in parallel, and lines connecting the first inductor and the first circuit, the lines being disposed to pass through an area defined by the first inductor and the second inductor. The first inductor and the second inductor have symmetrical differential structures.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: June 14, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youngchang Yoon, Jaehyup Kim, Sangmin Lee
  • Publication number: 20220059920
    Abstract: Disclosed is a 5G or pre-5G communication system for supporting a data transmission rate higher than that of a 4G communication system such as LTE. The present invention relates to a technique for implementing, in a compact form, a four-way power divider and combiner for a phased array system. More particularly, according to one embodiment of the present invention, a power divider including one input port and four output ports comprises an input terminal inductor having one end connected to the input port and the other end connected to the ground, an inductor group including four output terminal inductors, and four connection units for connecting the input port and the inductor group, wherein four secondary inductors are respectively connected to the four connection units so that four nodes are formed between the four connection units and the inductor group, and the output ports are respectively disposed on the four connection units between the input port and the inductor group.
    Type: Application
    Filed: January 6, 2020
    Publication date: February 24, 2022
    Inventors: Youngchang YOON, Kyuhwan AN, Bohee SUH, Sangho LEE
  • Publication number: 20220018892
    Abstract: The disclosure relates to an RFIC apparatus, and more particularly, to an RFIC circuit having a test circuit, a test apparatus, and a test method thereof. Further, the disclosure relates to a method for estimating or determining a DC gain using a test apparatus and an RF circuit in a DC/AC test stage, and detecting defects of the RF circuit based on the estimated or determined DC gain.
    Type: Application
    Filed: July 16, 2021
    Publication date: January 20, 2022
    Inventors: Donggyu MINN, Daehyun KANG, Yonghoon KIM, Jihoon KIM, Hyundo RYU, Jeeho PARK, Sunggi YANG, Youngchang YOON, Sehyug JEON
  • Patent number: 11227930
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). An amplifier is provided. The amplifier includes a first resistor electrically connected to the input terminal, a second resistor electrically connected to the output terminal, a switch including a metal-oxide-semiconductor field-effect transistor (MOSFET) and electrically connected to one end of the second resistor, and a switch control processor configured to electrically connect the gate terminal of the MOSFET constituting the switch and the bulk terminal of the MOSFET constituting the switch to an impedance having an impedance value higher than a preset first threshold.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: January 18, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sangmin Lee, Youngchang Yoon, Daehoon Kwon, Jaehyup Kim
  • Patent number: 11228335
    Abstract: A method and apparatus capable of adjusting a signal level in a wireless communication system are provided. An electronic device includes an oscillator configured to output a local oscillator (LO) signal, a mixer configured to convert a frequency band of a first signal based on the LO signal and output a third signal, and a feedback circuit configured to output a feedback signal for adjusting a magnitude of the LO signal, wherein the mixer is further configured to adjust a magnitude of LO signal based on the feedback signal.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: January 18, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jaesik Jang, Kyuhwan An, Youngchang Yoon, Kihyun Kim, Sangho Lee
  • Publication number: 20210396689
    Abstract: The invention provides a device for immobilizing and shipping crystals and for data collection via serial crystallography, the device having a first planar substrate defining a first transversely extending aperture, opening, wherein the first substrate has a first laterally facing surface; a second planar substrate defining a second transversely extending aperture coaxial with the first aperture, wherein the second substrate has a second laterally facing surface; a third planar substrate and a fourth planar substrate positioned between the first and second substrate such that the first planar substrate, the second planar substrate, the third planar substrate and the fourth planar substrate are parallel; and a means for reversibly applying axial pressure to the first and second laterally facing surfaces so as to compress the third and fourth substrates together.
    Type: Application
    Filed: June 17, 2020
    Publication date: December 23, 2021
    Applicant: UCHICAGO ARGONNE, LLC
    Inventors: Alex A. Lavens, Gyorgy BABNIGG, Darren A. Sherrell, Andrzej Joachimiak, Youngchang Kim, Jessica L. Johnson
  • Patent number: 11201226
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). An amplifier is provided. The amplifier includes a first resistor electrically connected to the input terminal, a second resistor electrically connected to the output terminal, a switch including a metal-oxide-semiconductor field-effect transistor (MOSFET) and electrically connected to one end of the second resistor, and a switch control processor configured to electrically connect the gate terminal of the MOSFET constituting the switch and the bulk terminal of the MOSFET constituting the switch to an impedance having an impedance value higher than a preset first threshold.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: December 14, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sangmin Lee, Youngchang Yoon, Daehoon Kwon, Jaehyup Kim