Patents by Inventor Sangmin Yoo
Sangmin Yoo 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).
-
Publication number: 20240048107Abstract: Disclosed is an output matching network including a first transmission line and a second transmission line each having one end connected to a respective balanced port of a pair of balanced ports; a third transmission line having one end connected to an unbalanced port; and a fourth transmission line. A first capacitor is connected to the unbalanced port and a load. A second capacitor is connected to an end of the fourth transmission line. The third and fourth transmission lines are coupled to the first and second transmission lines.Type: ApplicationFiled: August 3, 2023Publication date: February 8, 2024Applicants: Samsung Electronics Co., Ltd., Pusan National University Industry-University Cooperation FoundationInventors: Kyutaek Oh, Ockgoo Lee, HYUNCHUL PARK, Hyunjin Ahn, Sangmin Yoo, Jaeyeon Jeong, Joonhoi Hur
-
Publication number: 20230308123Abstract: A CMOS chip includes a signal converting circuit configured to convert a baseband signal and an RF signal, a plurality of ports through which the RF signal is transmitted or received, the plurality of ports being respectively included in a first transmission path, a second transmission path, and a reception path, and a plurality of matching networks connected to the signal converting circuit, the plurality of matching networks being respectively connected to the plurality of ports, a first matching network among the plurality of matching networks including an external matching network, and the external matching network being configured to perform an impedance matching of a compound semiconductor device.Type: ApplicationFiled: December 8, 2022Publication date: September 28, 2023Applicant: Samsung Electronics Co., Ltd.Inventors: Youngmin KIM, Hongjong Park, Sangmin Yoo, Sangwook Han
-
Publication number: 20230253264Abstract: A semiconductor device is provided. The semiconductor device includes a substrate including an active pattern, a gate electrode extending in a first direction and crossing the active pattern which extends in a second direction, a separation structure crossing the active pattern and extending in the first direction, a first gate dielectric pattern disposed on a side surface of the gate electrode, a second gate dielectric pattern disposed on a side surface of the separation structure, and a gate capping pattern covering a top surface of the gate electrode. A level of a top surface of the separation structure is higher than a level of a top surface of the gate capping pattern.Type: ApplicationFiled: April 14, 2023Publication date: August 10, 2023Inventors: SANGMIN YOO, JUYOUN KIM, HYUNGJOO NA, BONGSEOK SUH, JOOHO JUNG, EUICHUL HWANG, SUNGMOON LEE
-
Patent number: 11658075Abstract: A semiconductor device is provided. The semiconductor device includes a substrate including an active pattern, a gate electrode extending in a first direction and crossing the active pattern which extends in a second direction, a separation structure crossing the active pattern and extending in the first direction, a first gate dielectric pattern disposed on a side surface of the gate electrode, a second gate dielectric pattern disposed on a side surface of the separation structure, and a gate capping pattern covering a top surface of the gate electrode. A level of a top surface of the separation structure is higher than a level of a top surface of the gate capping pattern.Type: GrantFiled: May 3, 2021Date of Patent: May 23, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sangmin Yoo, Juyoun Kim, Hyungjoo Na, Bongseok Suh, Jooho Jung, Euichul Hwang, Sungmoon Lee
-
Patent number: 11424770Abstract: Different techniques are presented for achieving enhanced linearity of digital transmitters. In one aspect, each unit cell of a switched capacitor circuit includes a capacitor electrically coupled via a switch to one of a drive voltage or a reference voltage, and the switch is implemented by two transistors coupled in series. The two transistors are transitioned between on and off states by control signals applied to control terminals of the two transistors, such that the control signals are pulse waves with edges temporally shifted in relation to each other and thereby reducing switching resistance during switch transitions.Type: GrantFiled: February 12, 2021Date of Patent: August 23, 2022Assignee: Board of Trustees of Michigan State UniversityInventors: Sangmin Yoo, Si-Wook Yoo
-
Patent number: 11316485Abstract: A vector distribution method for operation of a power amplifier of a wireless transmitter including receiving, by a first amplifier circuit, a first input vector and a second input vector. The first input vector includes data derived from an input signal of the wireless transmitter and the second input vector includes other data derived from the input signal of the wireless transmitter. The method includes, in response to receiving the input signal, instructing the first amplifier circuit to output an output signal at a high voltage.Type: GrantFiled: September 21, 2020Date of Patent: April 26, 2022Assignee: Board of Trustees of Michigan State UniversityInventors: Sangmin Yoo, Si-Wook Yoo
-
Publication number: 20210258027Abstract: Different techniques are presented for achieving enhanced linearity of digital transmitters. In one aspect, each unit cell of a switched capacitor circuit includes a capacitor electrically coupled via a switch to one of a drive voltage or a reference voltage, and the switch is implemented by two transistors coupled in series. The two transistors are transitioned between on and off states by control signals applied to control terminals of the two transistors, such that the control signals are pulse waves with edges temporally shifted in relation to each other and thereby reducing switching resistance during switch transitions.Type: ApplicationFiled: February 12, 2021Publication date: August 19, 2021Applicant: Board of Trustees of Michigan State UniversityInventors: Sangmin YOO, Si-Wook YOO
-
Publication number: 20210257264Abstract: A semiconductor device is provided. The semiconductor device includes a substrate including an active pattern, a gate electrode extending in a first direction and crossing the active pattern which extends in a second direction, a separation structure crossing the active pattern and extending in the first direction, a first gate dielectric pattern disposed on a side surface of the gate electrode, a second gate dielectric pattern disposed on a side surface of the separation structure, and a gate capping pattern covering a top surface of the gate electrode. A level of a top surface of the separation structure is higher than a level of a top surface of the gate capping pattern.Type: ApplicationFiled: May 3, 2021Publication date: August 19, 2021Inventors: SANGMIN YOO, JUYOUN KIM, HYUNGJOO NA, BONGSEOK SUH, JOOHO JUNG, EUICHUL HWANG, SUNGMOON LEE
-
Patent number: 11062961Abstract: A semiconductor device is provided. The semiconductor device includes a substrate including an active pattern, a gate electrode extending in a first direction and crossing the active pattern which extends in a second direction, a separation structure crossing the active pattern and extending in the first direction, a first gate dielectric pattern disposed on a side surface of the gate electrode, a second gate dielectric pattern disposed on a side surface of the separation structure, and a gate capping pattern covering a top surface of the gate electrode. A level of a top surface of the separation structure is higher than a level of a top surface of the gate capping pattern.Type: GrantFiled: May 10, 2019Date of Patent: July 13, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sangmin Yoo, Juyoun Kim, Hyungjoo Na, Bongseok Suh, Jooho Jung, Euichul Hwang, Sungmoon Lee
-
Publication number: 20210006217Abstract: A vector distribution method for operation of a power amplifier of a wireless transmitter including receiving, by a first amplifier circuit, a first input vector and a second input vector. The first input vector includes data derived from an input signal of the wireless transmitter and the second input vector includes other data derived from the input signal of the wireless transmitter. The method includes, in response to receiving the input signal, instructing the first amplifier circuit to output an output signal at a high voltage.Type: ApplicationFiled: September 21, 2020Publication date: January 7, 2021Inventors: Sangmin YOO, Si-Wook YOO
-
Patent number: 10804864Abstract: A vector distribution method for operation of a power amplifier of a wireless transmitter including receiving, by a first amplifier circuit, a first input vector and a second input vector. The first input vector includes data derived from an input signal of the wireless transmitter and the second input vector includes other data derived from the input signal of the wireless transmitter. The method includes, in response to receiving the input signal, instructing the first amplifier circuit to output an output signal at a high voltage.Type: GrantFiled: March 15, 2019Date of Patent: October 13, 2020Assignee: Board of Trustees of Michigan State UniversityInventors: Sangmin Yoo, Si-Wook Yoo
-
Patent number: 10666306Abstract: A technique is presented for correcting phase distortion in a digital wireless transmitter. The technique includes: receiving an RF signal in an analog domain by a digital-to-RF modulator; amplitude modulating, the RF signal in accordance with a digital input code; and introducing delay in a signal path traversed by the RF signal before the digital-to-RF modulator using a delay circuit. The duration of the delay depends upon the value of the digital input code and substantially cancels out the phase distortion introduced by the digital wireless transmitter.Type: GrantFiled: November 14, 2019Date of Patent: May 26, 2020Assignee: Board of Trustees of Michigan State UniversityInventors: Sangmin Yoo, Si-Wook Yoo
-
Publication number: 20200153464Abstract: A technique is presented for correcting phase distortion in a digital wireless transmitter. The technique includes: receiving an RF signal in an analog domain by a digital-to-RF modulator; amplitude modulating, the RF signal in accordance with a digital input code; and introducing delay in a signal path traversed by the RF signal before the digital-to-RF modulator using a delay circuit. The duration of the delay depends upon the value of the digital input code and substantially cancels out the phase distortion introduced by the digital wireless transmitter.Type: ApplicationFiled: November 14, 2019Publication date: May 14, 2020Inventors: Sangmin YOO, Si-Wook YOO
-
Publication number: 20200105625Abstract: A semiconductor device is provided. The semiconductor device includes a substrate including an active pattern, a gate electrode extending in a first direction and crossing the active pattern which extends in a second direction, a separation structure crossing the active pattern and extending in the first direction, a first gate dielectric pattern disposed on a side surface of the gate electrode, a second gate dielectric pattern disposed on a side surface of the separation structure, and a gate capping pattern covering a top surface of the gate electrode. A level of a top surface of the separation structure is higher than a level of a top surface of the gate capping pattern.Type: ApplicationFiled: May 10, 2019Publication date: April 2, 2020Inventors: SANGMIN YOO, Juyoun Kim, Hyungjoo Na, Bongseok Suh, Jooho Jung, Euichul Hwang, Sungmoon Lee
-
Publication number: 20190288653Abstract: A vector distribution method for operation of a power amplifier of a wireless transmitter including receiving, by a first amplifier circuit, a first input vector and a second input vector. The first input vector includes data derived from an input signal of the wireless transmitter and the second input vector includes other data derived from the input signal of the wireless transmitter. The method includes, in response to receiving the input signal, instructing the first amplifier circuit to output an output signal at a high voltage.Type: ApplicationFiled: March 15, 2019Publication date: September 19, 2019Inventors: Sangmin YOO, Si-Wook YOO
-
Patent number: 8547177Abstract: Disclosed herein is an improved power amplifier, referred to as a Switched-Capacitor Radio Frequency Power Amplification (SCPA). The SCPA may be fabricated with scale CMOS technology. The SCPA may include a plurality of stages, each stage including a storage device, a switch, and selection circuitry. Various combinations of the stages may produce an output signal based on characteristics of a reference signal to be amplified. The output from the stages may be combined to create an amplified approximate square wave. The amplified square wave may be filtered by output circuitry such as a bandpass matching circuit, resulting in an output signal that may be an amplified version of the reference signal.Type: GrantFiled: May 12, 2011Date of Patent: October 1, 2013Assignee: University of Washington through its Center For CommercializationInventors: Sangmin Yoo, David Allstot, Jeffrey Walling