Patents by Inventor Gyu Hyeong Cho
Gyu Hyeong Cho 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: 11979227Abstract: An operation method of a relay node may include: receiving, from a first communication node, first data composed of n bits; receiving, from a second communication node, second data composed of m bits; in response to determining that n is greater than m, generating first T-data of m bits excluding (n-m) bits from the n-bits of the first data and first R-data of (n-m) bits; generating third data by performing a network coding operation on the first T-data and the second data; transmitting the third data to the first communication node; and transmitting the third data and the first R-data to the second communication node.Type: GrantFiled: December 3, 2021Date of Patent: May 7, 2024Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jun Hyeong Kim, Gyu Il Kim, Go San Noh, Hee Sang Chung, Dae Soon Cho, Sung Woo Choi, Seung Nam Choi, Jung Pil Choi
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Publication number: 20230344344Abstract: The present invention relates to a multi-path converter, which adds a current transfer path using a capacitor to a current transfer path using an inductor to supply a current that is output to an output end (load) to a plurality of parallel paths, thereby reducing a total RMS current flowing through the inductor, and a control method therefor.Type: ApplicationFiled: June 1, 2023Publication date: October 26, 2023Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Gyu Hyeong CHO, Yeun Hee HUH, Se UN SHIN, Sung Won CHOI, Yong Min JU, Sang Jin LIM
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Patent number: 11682970Abstract: The present invention relates to a multi-path converter, which adds a current transfer path using a capacitor to a current transfer path using an inductor to supply a current that is output to an output end (load) to a plurality of parallel paths, thereby reducing a total RMS current flowing through the inductor, and a control method therefor.Type: GrantFiled: June 17, 2022Date of Patent: June 20, 2023Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Gyu Hyeong Cho, Yeun Hee Huh, Se Un Shin, Sung Won Choi, Yong Min Ju, Sang Jin Lim
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Publication number: 20220329158Abstract: The present invention relates to a multi-path converter, which adds a current transfer path using a capacitor to a current transfer path using an inductor to supply a current that is output to an output end (load) to a plurality of parallel paths, thereby reducing a total RMS current flowing through the inductor, and a control method therefor.Type: ApplicationFiled: June 17, 2022Publication date: October 13, 2022Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Gyu Hyeong CHO, Yeun Hee HUH, Se Un SHIN, Sung Won CHOI, Yong Min JU, Sang JIn LIM
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Patent number: 11422582Abstract: A reference voltage generating circuit includes a bandgap reference (BGR) circuit configured to output an active reference voltage at a first node according to a sample signal; a first charging circuit configured to charge a first capacitor using the active reference voltage according to the sample signal; a second charging circuit configured to charge a second capacitor using the active reference voltage according to the sample signal; and a comparing circuit configured to compare a voltage difference between a charge voltage of the first capacitor and a charge voltage of the second capacitor with a threshold value, wherein the sample signal is a pulse signal generated using an output of the comparing circuit and the charge voltage of the first capacitor is provided as a low power reference voltage in a low power operation mode.Type: GrantFiled: August 16, 2019Date of Patent: August 23, 2022Assignees: SK hynix Inc., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (KAIST)Inventors: Sungwon Choi, Gyu-hyeong Cho, Youngsub Yuk
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Patent number: 11398779Abstract: A multi-path converter and a control method thereof are disclosed. The multi-path converter includes a current transfer path using a capacitor and a current transfer path using an inductor such that a current is output to an output end (load) through a plurality of parallel paths, thereby reducing a total RMS current flowing through the inductor, and a control method therefor.Type: GrantFiled: October 2, 2019Date of Patent: July 26, 2022Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Gyu Hyeong Cho, Yeun Hee Huh, Se Un Shin, Sung Won Choi, Yong Min Ju, Sang Jin Lim
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Patent number: 11329557Abstract: A single-inductor multiple-output (SIMO) converter includes a converter configured to provide respective voltages of a plurality of channels with a single inductor and a control logic configured to control switches of the converter based on clocks corresponding to the plurality of channels, wherein the control logic is configured to compare an output voltage of a selected channel of the plurality of channels that corresponds to a control target to a reference voltage of the selected channel based on a clock of the selected channel and operate in one of a first mode that adaptively adjusts a number of times that a pulse triggering a power transfer to the channel is generated, and a second mode that blocks a generation of the pulse.Type: GrantFiled: August 28, 2019Date of Patent: May 10, 2022Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Seungchul Jung, Kye-Seok Yoon, Gyu-Hyeong Cho, Sang Joon Kim, Sang Jin Lim
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Publication number: 20210257841Abstract: A semiconductor circuit includes a first selection circuit which selects a first battery or a first capacitor, a second selection circuit which selects a second battery or a second capacitor, a voltage measuring circuit which measures a first voltage of the first battery or the first capacitor selected by the first selection circuit, and measures a second voltage of the second battery or the second capacitor selected by the second selection circuit, a controller which compares the first voltage and the second voltage to generate a comparison result, and a switching circuit which receives a signal based on a target output voltage, connects the first battery or capacitor selected by the first selection circuit, and the second battery capacitor selected by the second selection circuit in an interconnection relationship based on the comparison result to provide to an output terminal an output voltage responsive to the target output voltage.Type: ApplicationFiled: September 25, 2020Publication date: August 19, 2021Inventors: Sung Yong Lee, Gyu Hyeong Cho, Min Woo Ko, Tae-Hwang Kong, Sang Ho Kim
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Patent number: 11038480Abstract: An amplifier includes: a first input transistor connected to a first input, a first output, and a power source or a ground, a second input transistor connected to a second input, a second output, and the power source or the ground; a first replica transistor connected to the first input, a detection node, and the power source or the ground; a second replica transistor connected to the second input, the detection node, and the power source or the ground; and a bias transistor connected to a bias voltage, the detection node, and the power source or the ground.Type: GrantFiled: February 14, 2020Date of Patent: June 15, 2021Assignees: SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyeokki Hong, Ji-Hun Lee, Gyu-Hyeong Cho, Cheheung Kim, Hyunwook Kang
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Patent number: 10965161Abstract: A wireless power receiving apparatus includes a receiving resonator configured to wirelessly receive energy; a resonant converter configured to transfer, to an output end of the wireless power receiving apparatus, energy of an energy storage device connected among a plurality of energy storage devices; and a controller configured to accumulate, alternatingly in the energy storage devices, the energy received, and select the energy storage device to be connected to the resonant converter from the energy storage devices.Type: GrantFiled: July 24, 2018Date of Patent: March 30, 2021Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Seungchul Jung, Gyu Hyeong Cho, Sang Joon Kim, JongPal Kim, Se Un Shin, Min Seong Choi, Seok Tae Koh, Yu Jin Yang
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Publication number: 20210036672Abstract: An amplifier includes: a first input transistor connected to a first input, a first output, and a power source or a ground, a second input transistor connected to a second input, a second output, and the power source or the ground; a first replica transistor connected to the first input, a detection node, and the power source or the ground; a second replica transistor connected to the second input, the detection node, and the power source or the ground; and a bias transistor connected to a bias voltage, the detection node, and the power source or the ground.Type: ApplicationFiled: February 14, 2020Publication date: February 4, 2021Applicants: SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyeokki HONG, Ji-Hun LEE, Gyu-Hyeong CHO, Cheheung KIM, Hyunwook KANG
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Patent number: 10735011Abstract: A digital-to-analog converter having a structure that converter may decrease an effect of a mismatch between elements and decrease a quantity of the elements. The digital-to-analog converter includes a multiplexer configured to output a first voltage or a second voltage corresponding to an input bit as an input voltage and a recursive switched circuit configured to alternately receive the input voltage and a reference voltage and to output an average value of the input voltage and the reference voltage as an output voltage.Type: GrantFiled: June 7, 2018Date of Patent: August 4, 2020Assignees: SAMSUNG DISPLAY CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Ohjo Kwon, Gyu-Hyeong Cho, Ki-Duk Kim, Ji-Su Choi
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Publication number: 20200209906Abstract: A reference voltage generating circuit includes a bandgap reference (BGR) circuit configured to output an active reference voltage at a first node according to a sample signal; a first charging circuit configured to charge a first capacitor using the active reference voltage according to the sample signal; a second charging circuit configured to charge a second capacitor using the active reference voltage according to the sample signal; and a comparing circuit configured to compare a voltage difference between a charge voltage of the first capacitor and a charge voltage of the second capacitor with a threshold value, wherein the sample signal is a pulse signal generated using an output of the comparing circuit and the charge voltage of the first capacitor is provided as a low power reference voltage in a low power operation mode.Type: ApplicationFiled: August 16, 2019Publication date: July 2, 2020Inventors: Sungwon CHOI, Gyu-hyeong CHO, Youngsub YUK
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Patent number: 10678280Abstract: A low dropout voltage (LDO) regulator including: a coarse loop circuit configured to receive an input voltage, generate a coarse code and adjust a coarse current according to the coarse code; a digital controller configured to receive the coarse code and generate a fine loop control signal according to the coarse code; and a fine loop circuit configured to receive the input voltage and the fine loop control signal and adjust a fine current according to the input voltage and the fine loop control signal, wherein the coarse current and the fine current adjust a level of an output voltage.Type: GrantFiled: October 25, 2018Date of Patent: June 9, 2020Assignees: SAMSUNG ELECTRONICS CO., LTD., Korea Advanced Institute of Science and TechnologyInventors: Gyu-Hyeong Cho, Yongjin Lee, Dae-Yong Kim, Sangho Kim
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Patent number: 10615696Abstract: An electronic circuit includes an inductive element, a capacitive element, and switch elements. A first end of the inductive element is connected to an input voltage. A first end of a first switch element is connected to the first end of the inductive element. The capacitive element is connected between a second end of the first switch element and a second end of the inductive element. A second switch element is connected between the second end of the first switch element and a reference voltage. A third switch element is connected between the second end of the inductive element and the reference voltage. A fourth switch element is connected between the second end of the inductive element and a first output voltage. A fifth switch element is connected between the second end of the inductive element and a second output voltage.Type: GrantFiled: December 20, 2018Date of Patent: April 7, 2020Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Minyong Jung, Gyeong-Gu Kang, Gyu-Hyeong Cho, Hyunseok Kim, Heemun Bang, Se-Un Shin, Chang Seok Chae
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Publication number: 20200106358Abstract: The present invention relates to a multi-path converter, which adds a current transfer path using a capacitor to a current transfer path using an inductor to supply a current that is output to an output end (load) to a plurality of parallel paths, thereby reducing a total RMS current flowing through the inductor, and a control method therefor.Type: ApplicationFiled: October 2, 2019Publication date: April 2, 2020Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Gyu Hyeong Cho, Yeun Hee Huh, Se Un Shin, Sung Won Choi, Yong Min Ju, Sang Jin Lim
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Publication number: 20200076298Abstract: A single-inductor multiple-output (SIMO) converter includes a converter configured to provide respective voltages of a plurality of channels with a single inductor and a control logic configured to control switches of the converter based on clocks corresponding to the plurality of channels, wherein the control logic is configured to compare an output voltage of a selected channel of the plurality of channels that corresponds to a control target to a reference voltage of the selected channel based on a clock of the selected channel and operate in one of a first mode that adaptively adjusts a number of times that a pulse triggering a power transfer to the channel is generated, and a second mode that blocks a generation of the pulse.Type: ApplicationFiled: August 28, 2019Publication date: March 5, 2020Applicants: SAMSUNG ELECTRONICS CO., LTD., Korea Advanced Institute of Science and TechnologyInventors: Seungchul JUNG, Kye-Seok YOON, Gyu-Hyeong CHO, Sang Joon KIM, Sang Jin LIM
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Patent number: 10528200Abstract: A coordinate measurement device and method for hover sensing are disclosed. According to the present invention, the coordinate measurement device comprises: a channel electrode unit including a plurality of electrodes, wherein a capacitance of at least one of the plurality of electrodes variably changes by the approach of a contact object; a driving unit for applying a positive voltage to a first electrode group among the plurality of electrodes and applying a negative voltage to a second electrode group among the plurality of electrodes; a reception unit for receiving reception signals from a plurality of electrodes in the first electrode group and a plurality of electrodes in the second electrode group, respectively; and a processor for determining the position of the contact object on the basis of the received signals.Type: GrantFiled: September 5, 2016Date of Patent: January 7, 2020Assignees: SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Chang-byung Park, Sung-soo Park, Ki-duk Kim, Gyu-hyeong Cho, Yeun-hee Huh
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Publication number: 20190252978Abstract: An electronic circuit includes an inductive element, a capacitive element, and switch elements. A first end of the inductive element is connected to an input voltage. A first end of a first switch element is connected to the first end of the inductive element. The capacitive element is connected between a second end of the first switch element and a second end of the inductive element. A second switch element is connected between the second end of the first switch element and a reference voltage. A third switch element is connected between the second end of the inductive element and the reference voltage. A fourth switch element is connected between the second end of the inductive element and a first output voltage. A fifth switch element is connected between the second end of the inductive element and a second output voltage.Type: ApplicationFiled: December 20, 2018Publication date: August 15, 2019Inventors: MINYONG JUNG, GYEONG-GU KANG, GYU-HYEONG CHO, HYUNSEOK KIM, HEEMUN BANG, SE-UN SHIN, CHANG SEOK CHAE
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Patent number: 10305519Abstract: A power supply apparatus for a power amplifier includes a converter configured to convert input power into driving power for the power amplifier, a detector configured to transfer the driving power from the converter to the power amplifier, including an inductor formed on a detection path of the driving power, and configured to detect power information regarding the driving power to generate a detected signal, and a controller configured to control power conversion of the converter based on an envelope signal of a signal input to the power amplifier and the detected signal.Type: GrantFiled: May 5, 2016Date of Patent: May 28, 2019Assignees: Samsung Electro-Mechanics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Hui Dong Gwon, Gyu Hyeong Cho, Jeong Hoon Kim