Patents by Inventor Youngkyu Choi
Youngkyu 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: 11917759Abstract: An electronic device includes: a housing including a plate and a back plate facing a second surface of the plate and including a planar area facing a first direction, a display module including a display disposed on a first surface of the plate, a battery and a circuit board disposed on the second surface of the plate, a first flexible substrate extending from the display module, and a second flexible substrate extending from the circuit board to the first flexible substrate across the battery. The first flexible substrate includes a first connector, and the second flexible substrate includes a second connector. The first flexible substrate and the second flexible substrate are configured such that the first connector and the second connector are coupled in a second direction different from the first direction.Type: GrantFiled: August 4, 2021Date of Patent: February 27, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Sungsoo Jun, Changho Park, Jinman Kim, Munjin Jeong, Wooyoung Jeong, Namjun Kim, Yonghwa Kim, Dongmyeong Park, Youngmoon Park, Youngkyu Kim, Minwoo Yoo, Hyunsuk Choi
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Publication number: 20240063993Abstract: An apparatus of a base station in a wireless communication system supporting time division duplex (TDD) and a method thereof are provided. The apparatus includes at least one transceiver, and at least one processor operatively connected with the at least one transceiver. The at least one processor may be configured to perform signaling for preventing transmission of an uplink (UL) signal in a cell, and measure a strength of a downlink (DL) signal received from at least one base station during at least one symbol in a UL subframe. The apparatus 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).Type: ApplicationFiled: November 1, 2023Publication date: February 22, 2024Inventors: Sangkyu PARK, Gyouhwan KIM, Jai-Jin LIM, Jaeho JEON, Youngkyu CHOI
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Patent number: 11838245Abstract: An apparatus of a base station in a wireless communication system supporting time division duplex (TDD) and a method thereof are provided. The apparatus includes at least one transceiver, and at least one processor operatively connected with the at least one transceiver. The at least one processor may be configured to perform signaling for preventing transmission of an uplink (UL) signal in a cell, and measure a strength of a downlink (DL) signal received from at least one base station during at least one symbol in a UL subframe. The apparatus 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).Type: GrantFiled: April 8, 2022Date of Patent: December 5, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Sangkyu Park, Gyouhwan Kim, Jai-Jin Lim, Jaeho Jeon, Youngkyu Choi
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Patent number: 11444744Abstract: An apparatus of a base station in a wireless communication system supporting time division duplex (TDD) and a method thereof are provided. The apparatus includes at least one transceiver, and at least one processor operatively connected with the at least one transceiver. The at least one processor may be configured to perform signaling for preventing transmission of an uplink (UL) signal in a cell, and measure a strength of a downlink (DL) signal received from at least one base station during at least one symbol in a UL subframe. The apparatus 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).Type: GrantFiled: April 6, 2020Date of Patent: September 13, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Sangkyu Park, Gyouhwan Kim, Jai-Jin Lim, Jaeho Jeon, Youngkyu Choi
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Publication number: 20220239455Abstract: An apparatus of a base station in a wireless communication system supporting time division duplex (TDD) and a method thereof are provided. The apparatus includes at least one transceiver, and at least one processor operatively connected with the at least one transceiver. The at least one processor may be configured to perform signaling for preventing transmission of an uplink (UL) signal in a cell, and measure a strength of a downlink (DL) signal received from at least one base station during at least one symbol in a UL subframe. The apparatus 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).Type: ApplicationFiled: April 8, 2022Publication date: July 28, 2022Inventors: Sangkyu PARK, Gyouhwan KIM, Jai-Jin LIM, Jaeho JEON, Youngkyu CHOI
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Publication number: 20200235904Abstract: An apparatus of a base station in a wireless communication system supporting time division duplex (TDD) and a method thereof are provided. The apparatus includes at least one transceiver, and at least one processor operatively connected with the at least one transceiver. The at least one processor may be configured to perform signaling for preventing transmission of an uplink (UL) signal in a cell, and measure a strength of a downlink (DL) signal received from at least one base station during at least one symbol in a UL subframe. The apparatus 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).Type: ApplicationFiled: April 6, 2020Publication date: July 23, 2020Inventors: Sangkyu PARK, Gyouhwan KIM, Jai-Jin LIM, Jaeho JEON, Youngkyu CHOI
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Patent number: 10716058Abstract: Provided is a method for managing terminals by a base station when a plurality of networks coexist. Specifically, in a wireless communication system where a first network coexists with a second network, the terminal management method of a base station of the first network may include: receiving coexistence information from a first network management apparatus managing the base station, and examining the coexistence information; generating time information that is needed by a user equipment attached to the first network to access a third network on the basis of the coexistence information; and sending a message containing the time information to the user equipment. Thereby, it is possible to operate WiMAX and TD-LTE simultaneously while using a CDMA network for a voice service.Type: GrantFiled: January 30, 2015Date of Patent: July 14, 2020Assignee: Samsung Electronics Co., Ltd.Inventor: Youngkyu Choi
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Patent number: 10615948Abstract: An apparatus of a base station in a wireless communication system supporting time division duplex (TDD) and a method thereof are provided. The apparatus includes at least one transceiver, and at least one processor operatively connected with the at least one transceiver. The at least one processor may be configured to perform signaling for preventing transmission of an uplink (UL) signal in a cell, and measure a strength of a downlink (DL) signal received from at least one base station during at least one symbol in a UL subframe. The apparatus 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).Type: GrantFiled: May 29, 2018Date of Patent: April 7, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Sangkyu Park, Gyouhwan Kim, Jai-Jin Lim, Jaeho Jeon, Youngkyu Choi
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Publication number: 20190345941Abstract: A scroll compressor includes a rotation shaft; a first scroll and a second scroll engaged with the first scroll to form a compression chamber between the second scroll and the first scroll. The second scroll includes a key recess. The scroll compressor includes an Oldham ring having a ring portion and a key portion protruding toward the key recess, from the ring portion. The key portion is coupled to the key recess in a sliding manner such that the second scroll orbits with respect to the first scroll. The scroll compressor also includes a wear preventing member installed between the key recess and the key portion. The second scroll includes an axial direction separation prevention groove formed by recessing one surface off the key recess. The wear preventing member includes an axial direction separation prevention portion held in place by the axial direction separation prevention groove.Type: ApplicationFiled: May 8, 2019Publication date: November 14, 2019Applicant: LG ELECTRONICS INC.Inventors: Byungkil YOO, Jinyong JANG, Youngkyu CHOI, Yongsoo CHO
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Publication number: 20180343103Abstract: An apparatus of a base station in a wireless communication system supporting time division duplex (TDD) and a method thereof are provided. The apparatus includes at least one transceiver, and at least one processor operatively connected with the at least one transceiver. The at least one processor may be configured to perform signaling for preventing transmission of an uplink (UL) signal in a cell, and measure a strength of a downlink (DL) signal received from at least one base station during at least one symbol in a UL subframe. The apparatus 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).Type: ApplicationFiled: May 29, 2018Publication date: November 29, 2018Inventors: Sangkyu PARK, Gyouhwan KIM, Jai-Jin LIM, Jaeho JEON, Youngkyu CHOI
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Publication number: 20170048791Abstract: Provided is a method for managing terminals by a base station when a plurality of networks coexist. Specifically, in a wireless communication system where a first network coexists with a second network, the terminal management method of a base station of the first network may include: receiving coexistence information from a first network management apparatus managing the base station, and examining the coexistence information; generating time information that is needed by a user equipment attached to the first network to access a third network on the basis of the coexistence information; and sending a message containing the time information to the user equipment. Thereby, it is possible to operate WiMAX and TD-LTE simultaneously while using a CDMA network for a voice service.Type: ApplicationFiled: January 30, 2015Publication date: February 16, 2017Applicant: Samsung Electronics Co., Ltd.Inventor: Youngkyu CHOI
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Patent number: 7778644Abstract: Disclosed is an apparatus and method for managing resources in a mobile communication system. The method includes classifying an overall frequency band into a plurality of segment types defined in time and frequency domains by considering a channel condition between a mobile station and the base station and a QoS level required by the mobile station, if data to be transmitted is data to be transmitted in real time, allocating the data to real-time type segments in such a manner as to satisfy a minimum QoS level for the data, and when there are real-time data remaining after allocating the data, and non-real-time type segments for allocating data to be transmitted in non-real time, diverting and allocating the real-time data to the non-real-time type segments.Type: GrantFiled: May 7, 2007Date of Patent: August 17, 2010Assignees: Samsung Electronics Co., Ltd., Seoul National University Industry FoundationInventors: Sunghyun Choi, Youngkyu Choi, Yong-Hwan Lee
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Patent number: 7609698Abstract: In retransmitting data at high speed by a PHY layer in a mobile communication system, when data to be transmitted to the receiver is received from the MAC layer of the transmitter, the PHY layer of the transmitter transmits the data to the PHY layer of the receiver, receives first information representing normal reception or abnormal reception of the data from the PHY layer of the receiver, notifies the MAC layer of the transmitter of the normal reception of the data when the first information represents the normal reception, and retransmits the data to the PHY layer of the receiver when the first information represents the abnormal reception.Type: GrantFiled: November 30, 2005Date of Patent: October 27, 2009Assignees: Samsung Electronics Co., Ltd, Seoul National University Industry FoundationInventors: Sunghyun Choi, Sunggeun Jin, Youngkyu Choi, Kwanghun Han, Jae-Hyuk Jang, Yong-Hwan Lee
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Publication number: 20070291692Abstract: Disclosed is an apparatus and method for managing resources in a mobile communication system. The method includes classifying an overall frequency band into a plurality of segment types defined in time and frequency domains by considering a channel condition between a mobile station and the base station and a QoS level required by the mobile station, if data to be transmitted is data to be transmitted in real time, allocating the data to real-time type segments in such a manner as to satisfy a minimum QoS level for the data, and when there are real-time data remaining after allocating the data, and non-real-time type segments for allocating data to be transmitted in non-real time, diverting and allocating the real-time data to the non-real-time type segments.Type: ApplicationFiled: May 7, 2007Publication date: December 20, 2007Applicants: SAMSUNG ELECTRONICS CO., LTD, Seoul National University Industry FoundationInventors: Sunghyun Choi, Youngkyu Choi, Yond-Hwan Lee
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Publication number: 20060156162Abstract: In retransmitting data at high speed by a PHY layer in a mobile communication system, when data to be transmitted to the receiver is received from the MAC layer of the transmitter, the PHY layer of the transmitter transmits the data to the PHY layer of the receiver, receives first information representing normal reception or abnormal reception of the data from the PHY layer of the receiver, notifies the MAC layer of the transmitter of the normal reception of the data when the first information represents the normal reception, and retransmits the data to the PHY layer of the receiver when the first information represents the abnormal reception.Type: ApplicationFiled: November 30, 2005Publication date: July 13, 2006Applicants: SAMSUNG ELECTRONICS CO., LTD., Seoul National University Industry FoundationInventors: Sunghyun Choi, Sunggeun Jin, Youngkyu Choi, Kwanghun Han, Jae-Hyuk Jang, Yong-Hwan Lee
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Publication number: 20060150050Abstract: In retransmitting data by a transmitter in a mobile communication system, a transmitter sets an allowed number-of-transmissions Ctx for an initial transmission and a retransmission of a second data unit based on a first data unit, fragments the first data unit into N second data units, and then initially-transmits or retransmits the N second data units to the receiver within the allowed number-of-transmissions Ctx. The receiver receives the second data units, detects normal receipt or abnormal receipt of the received second data units, and transmits a response to the transmitter according to the detection result.Type: ApplicationFiled: January 3, 2006Publication date: July 6, 2006Applicants: SAMSUNG ELECTRONICS CO., LTD., Seoul National University Industry FoundationInventors: Sunghyun Choi, Youngkyu Choi, Yong-Hwan Lee
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Patent number: 5296394Abstract: A manufacturing method of GaAs metal semiconductor FET is disclosed.Type: GrantFiled: December 26, 1991Date of Patent: March 22, 1994Assignee: Electronics and Telecommunications Research InstituteInventors: Kyuhwan Shim, Chulsoon Park, Dojin Kim, Sungjae Maeng, Jeonwook Yang, Youngkyu Choi, Jinyeong Kang, Kyungho Lee, Jinhee Lee
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Patent number: 5225360Abstract: There is disclosed a manufacturing method of self-aligned GaAs FET using refractory gate with dual structure, the manufacturing method of the invention comprising the steps of: forming first photoresist pattern on a GaAs substrate to define an active region and ion-implanting n type impurity in the active region of the GaAs substrate; sequentially depositing a nitrogen-containing silicon layer and a metal layer on the substrate after removal of the first photoresist pattern; forming second photoresist pattern on the metal layer to define a gate; removing the silicon and metal layers using the second photoresist pattern as a gate mask to form the gate with dual structure of the silicon and metal layers; forming third photoresist pattern on the substrate to define source/drain regions after removal of the second photoresist pattern, and ion-implanting high-density impurity in the source/drain regions using the third photoresist pattern and the gate as a source/drain mask; annealing the substrate to make the silType: GrantFiled: December 26, 1991Date of Patent: July 6, 1993Assignee: Electronics and Telecommunications Research InstituteInventors: Kyuhwan Shim, Chulsoon Park, Dojin Kim, Sungjae Maeng, Jeonwook Yang, Youngkyu Choi, Jinyeong Kang, Kyungho Lee, Jinhee Lee