Patents by Inventor Youngbaek CHOI

Youngbaek 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).

  • Publication number: 20250158645
    Abstract: An electronic device of the disclosure may include: a radio frequency integrated circuit (RFIC) configured to output multiple radio frequency signals of a first communication network or a second communication network; power supply circuitry including first power source circuitry and second power source circuitry; multiple power amplifiers including a first power amplifier configured to amplify a radio frequency signal of a first port of the RFIC and cause a transmission signal to be output via a first antenna, a second power amplifier connected to a second antenna and configured to amplify a radio frequency signal of a second port of the RFIC and cause a transmission signal to be output via the second antenna, a third power amplifier configured to amplify a radio frequency signal of a third port of the RFIC and cause a transmission signal to be output via a third antenna, and a fourth power amplifier configured to amplify a radio frequency signal of a fourth port of the RFIC or a radio frequency signal of a f
    Type: Application
    Filed: December 2, 2024
    Publication date: May 15, 2025
    Inventors: Youngbaek CHOI, Jihoon JO, Yohan MOON, Jonghun YOO
  • Patent number: 11817891
    Abstract: An electronic device and a method performed by an electronic device are provided. A number of frequency bands of a plurality of carriers to be used in a plurality of communication circuits for communication is determined. The plurality of communication circuits process carrier signals in different frequency bands. A switching operation, performed by at least one switch, is controlled based on the number of frequency bands and a specified condition that is based on frequency bands able to be processed by an LNA included in each of the plurality of communication circuits. The carrier signals of the plurality of carriers is processed using at least one communication circuit. The at least one switch is alternately connected to two communication circuits and is configured to provide a reception carrier signal from at least one antenna to one of the two communication circuits based on a switching operation.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: November 14, 2023
    Inventor: Youngbaek Choi
  • Publication number: 20230112105
    Abstract: According to an embodiment of the disclosure, an electronic device may comprise: a housing including a front surface facing a first direction, a rear surface facing in a second direction opposite to the first direction, and a side structure including a side surface at least partially surrounding a space between the front surface and the rear surface, a coaxial cable at least partially disposed in the housing, a fixing member comprising a conductive material having electrical conductivity and disposed in the housing surrounding at least a portion of the coaxial cable, and an electrical/electronic component disposed in the housing and including a body portion at least partially disposed in the housing and a flexible printed circuit board extending from the body portion. The fixing member may be configured to electrically connect the coaxial cable and the flexible printed circuit board with the housing.
    Type: Application
    Filed: August 15, 2022
    Publication date: April 13, 2023
    Inventors: Jeonggyun PARK, Seungjae AHN, Youngduck JUNG, Hyoseok NA, Youngbaek CHOI
  • Publication number: 20210391877
    Abstract: An electronic device and a method performed by an electronic device are provided. A number of frequency bands of a plurality of carriers to be used in a plurality of communication circuits for communication is determined. The plurality of communication circuits process carrier signals in different frequency bands. A switching operation, performed by at least one switch, is controlled based on the number of frequency bands and a specified condition that is based on frequency bands able to be processed by an LNA included in each of the plurality of communication circuits. The carrier signals of the plurality of carriers is processed using at least one communication circuit. The at least one switch is alternately connected to two communication circuits and is configured to provide a reception carrier signal from at least one antenna to one of the two communication circuits based on a switching operation.
    Type: Application
    Filed: August 30, 2021
    Publication date: December 16, 2021
    Inventor: Youngbaek Choi
  • Patent number: 11108418
    Abstract: An electronic device and method for supporting carrier aggregation are provided. An electronic device may include a communication circuit including a plurality of local oscillators; and a processor configured to determine an operation mode of at least one local oscillator among the plurality of oscillators based on at least one of a number of uplink carriers and a number of downlink carriers; and control the at least one local oscillator to operate based on the determined operation mode.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: August 31, 2021
    Inventor: Youngbaek Choi
  • Publication number: 20190386688
    Abstract: An electronic device and method for supporting carrier aggregation are provided. An electronic device may include a communication circuit including a plurality of local oscillators; and a processor configured to determine an operation mode of at least one local oscillator among the plurality of oscillators based on at least one of a number of uplink carriers and a number of downlink carriers; and control the at least one local oscillator to operate based on the determined operation mode.
    Type: Application
    Filed: June 18, 2019
    Publication date: December 19, 2019
    Inventor: Youngbaek CHOI