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: 20240048107
    Abstract: 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: Application
    Filed: August 3, 2023
    Publication date: February 8, 2024
    Applicants: Samsung Electronics Co., Ltd., Pusan National University Industry-University Cooperation Foundation
    Inventors: Kyutaek Oh, Ockgoo Lee, HYUNCHUL PARK, Hyunjin Ahn, Sangmin Yoo, Jaeyeon Jeong, Joonhoi Hur
  • Publication number: 20230308123
    Abstract: 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: Application
    Filed: December 8, 2022
    Publication date: September 28, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Youngmin KIM, Hongjong Park, Sangmin Yoo, Sangwook Han
  • Publication number: 20230253264
    Abstract: 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: Application
    Filed: April 14, 2023
    Publication date: August 10, 2023
    Inventors: SANGMIN YOO, JUYOUN KIM, HYUNGJOO NA, BONGSEOK SUH, JOOHO JUNG, EUICHUL HWANG, SUNGMOON LEE
  • Patent number: 11658075
    Abstract: 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: Grant
    Filed: May 3, 2021
    Date of Patent: May 23, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sangmin Yoo, Juyoun Kim, Hyungjoo Na, Bongseok Suh, Jooho Jung, Euichul Hwang, Sungmoon Lee
  • Patent number: 11424770
    Abstract: 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: Grant
    Filed: February 12, 2021
    Date of Patent: August 23, 2022
    Assignee: Board of Trustees of Michigan State University
    Inventors: Sangmin Yoo, Si-Wook Yoo
  • Patent number: 11316485
    Abstract: 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: Grant
    Filed: September 21, 2020
    Date of Patent: April 26, 2022
    Assignee: Board of Trustees of Michigan State University
    Inventors: Sangmin Yoo, Si-Wook Yoo
  • Publication number: 20210258027
    Abstract: 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: Application
    Filed: February 12, 2021
    Publication date: August 19, 2021
    Applicant: Board of Trustees of Michigan State University
    Inventors: Sangmin YOO, Si-Wook YOO
  • Publication number: 20210257264
    Abstract: 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: Application
    Filed: May 3, 2021
    Publication date: August 19, 2021
    Inventors: SANGMIN YOO, JUYOUN KIM, HYUNGJOO NA, BONGSEOK SUH, JOOHO JUNG, EUICHUL HWANG, SUNGMOON LEE
  • Patent number: 11062961
    Abstract: 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: Grant
    Filed: May 10, 2019
    Date of Patent: July 13, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sangmin Yoo, Juyoun Kim, Hyungjoo Na, Bongseok Suh, Jooho Jung, Euichul Hwang, Sungmoon Lee
  • Publication number: 20210006217
    Abstract: 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: Application
    Filed: September 21, 2020
    Publication date: January 7, 2021
    Inventors: Sangmin YOO, Si-Wook YOO
  • Patent number: 10804864
    Abstract: 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: Grant
    Filed: March 15, 2019
    Date of Patent: October 13, 2020
    Assignee: Board of Trustees of Michigan State University
    Inventors: Sangmin Yoo, Si-Wook Yoo
  • Patent number: 10666306
    Abstract: 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: Grant
    Filed: November 14, 2019
    Date of Patent: May 26, 2020
    Assignee: Board of Trustees of Michigan State University
    Inventors: Sangmin Yoo, Si-Wook Yoo
  • Publication number: 20200153464
    Abstract: 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: Application
    Filed: November 14, 2019
    Publication date: May 14, 2020
    Inventors: Sangmin YOO, Si-Wook YOO
  • Publication number: 20200105625
    Abstract: 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: Application
    Filed: May 10, 2019
    Publication date: April 2, 2020
    Inventors: SANGMIN YOO, Juyoun Kim, Hyungjoo Na, Bongseok Suh, Jooho Jung, Euichul Hwang, Sungmoon Lee
  • Publication number: 20190288653
    Abstract: 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: Application
    Filed: March 15, 2019
    Publication date: September 19, 2019
    Inventors: Sangmin YOO, Si-Wook YOO
  • Patent number: 8547177
    Abstract: 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: Grant
    Filed: May 12, 2011
    Date of Patent: October 1, 2013
    Assignee: University of Washington through its Center For Commercialization
    Inventors: Sangmin Yoo, David Allstot, Jeffrey Walling