Patents by Inventor Sung-Ku YEO

Sung-Ku YEO 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).

  • Patent number: 11043856
    Abstract: A method for controlling an electronic device including a charging circuit is provided. The method includes receiving power wirelessly from a power transmitting device; rectifying the received power; based on a voltage of the rectified power being greater than or equal to an allowable voltage of the charging circuit, controlling to convert the rectified power through a converting circuit of the electronic device and to output the converted power to the charging circuit for charging a battery of the electronic device, wherein the allowable voltage relates to a maximum voltage or a preferable voltage to be applied to the charging circuit; and based on the voltage of the rectified power being less than the allowable voltage of the charging circuit, controlling to stop converting the rectified power and to output the rectified power to the charging circuit by connecting the rectifying circuit to the charging circuit.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: June 22, 2021
    Assignee: Samsung Electronics Co. Ltd.
    Inventors: Yu-Su Kim, Se-Ho Park, Sung-Ku Yeo, Kang-Ho Byun, Kyung-Woo Lee
  • Patent number: 11025101
    Abstract: A wireless power transmitter for charging a wireless power receiver is provided. The wireless power transmitter includes a power transmission unit configured to transmit power for charging the wireless power receiver, by using a current applied to the power transmission unit, a communication module configured to receive out-of-band communication signal from the wireless power receiver and a controller configured to apply the current to the power transmission unit to transmit power in response to receiving the out-of-band communication signal from the wireless power receiver.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: June 1, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung-Koo Chung, Sung-Ku Yeo, Ki-Young Kim
  • Publication number: 20210006100
    Abstract: A method for controlling an electronic device including a charging circuit is provided. The method includes receiving power wirelessly from a power transmitting device; rectifying the received power; based on a voltage of the rectified power being greater than or equal to an allowable voltage of the charging circuit, controlling to convert the rectified power through a converting circuit of the electronic device and to output the converted power to the charging circuit for charging a battery of the electronic device, wherein the allowable voltage relates to a maximum voltage or a preferable voltage to be applied to the charging circuit; and based on the voltage of the rectified power being less than the allowable voltage of the charging circuit, controlling to stop converting the rectified power and to output the rectified power to the charging circuit by connecting the rectifying circuit to the charging circuit.
    Type: Application
    Filed: September 22, 2020
    Publication date: January 7, 2021
    Inventors: Yu-Su KIM, Se-Ho PARK, Sung-Ku YEO, Kang-Ho BYUN, Kyung-Woo LEE
  • Publication number: 20200381941
    Abstract: A method of a charging apparatus for controlling wireless charging is provided. The method includes detecting an electronic device, determining a charging method corresponding to the detected electronic device, and wirelessly charging the electronic device by selecting a coil corresponding to the determined charging method.
    Type: Application
    Filed: August 17, 2020
    Publication date: December 3, 2020
    Inventors: Dong-Zo KIM, Do-Won KIM, Jae-Hyun PARK, Sung-Ku YEO, Sung-Bum PARK, Young-Ho RYU
  • Patent number: 10826332
    Abstract: A wireless power transmitting device is provided. The wireless power transmitting device includes a patch antenna, and a transmission/reception processing circuit configured to output a first signal to the patch antenna during a first period, and process a second signal output from the patch antenna during a second period, wherein the patch antenna is configured to transmit a transmission wave using the first signal, and output the second signal to the transmission/reception processing circuit using a reception wave.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: November 3, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Ku Yeo, Chong-Min Lee, Jae-Seok Park, Jae-Hyun Park, Kyung-Woo Lee, Hyo-Seok Han
  • Patent number: 10797538
    Abstract: A method for controlling a wireless power receiver including a charging unit and a wireless power receiver are provided. The method includes receiving wireless power; rectifying the received wireless power and outputting Direct Current (DC) wireless power; and determining whether a voltage of the rectified wireless power is equal to or higher than an allowable voltage of the charging unit.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: October 6, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Yu-Su Kim, Se-Ho Park, Sung-Ku Yeo, Kang-Ho Byun, Kyung-Woo Lee
  • Patent number: 10797530
    Abstract: A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kang-Ho Byun, Kyung-Woo Lee, Young-Min Lee, Se-Ho Park, Yu-Su Kim, Sung-Ku Yeo
  • Publication number: 20200287422
    Abstract: A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.
    Type: Application
    Filed: May 26, 2020
    Publication date: September 10, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kang-Ho Byun, Kyung-Woo Lee, Young-Min Lee, Se-Ho Park, Yu-Su Kim, Sung-Ku Yeo
  • Publication number: 20200274400
    Abstract: A wireless power transmission apparatus according to various embodiments may comprise a plurality of patch antennas, a communication circuit, and a processor. The processor can be configured to perform a control to form an RF wave of a first beam width via the plurality of patch antennas, receive, from an electronic apparatus, via the communication circuit, sensing data for at least one of a movement of the electronic apparatus or an orientation of the electronic apparatus, and adjust a beam width of the RF wave formed by the plurality of patch antennas from the first beam width to a second beam width at least on the basis of the received sensing data.
    Type: Application
    Filed: November 14, 2018
    Publication date: August 27, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Sung Ku YEO, Sung Bum PARK, Young Ho RYU, Chong Min LEE
  • Patent number: 10749367
    Abstract: A method of a charging apparatus for controlling wireless charging is provided. The method includes detecting an electronic device, determining a charging method corresponding to the detected electronic device, and wirelessly charging the electronic device by selecting a coil corresponding to the determined charging method.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: August 18, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Zo Kim, Do-Won Kim, Jae-Hyun Park, Sung-Ku Yeo, Sung-Bum Park, Young-Ho Ryu
  • Publication number: 20200259371
    Abstract: A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kang-Ho BYUN, Kyung-Woo LEE, Young-Min LEE, Se-Ho PARK, Yu-Su KIM, Sung-Ku YEO
  • Publication number: 20200235708
    Abstract: A power amplifier may comprise: an element for amplifying an electrical signal received through an input terminal, and outputting the amplified electrical signal through an output terminal; a first impedance adjustment circuit connected to the input terminal of the element and adjusting impedance with respect to a frequency of a fundamental component at the input terminal; a second impedance adjustment circuit connected to the input terminal of the element and adjusting impedance with respect to a frequency of a multiplied harmonic component at the input terminal; a third impedance adjustment circuit connected to the output terminal of the element and adjusting impedance with respect to the frequency of the fundamental component at the output terminal; a fourth impedance adjustment circuit connected to the output terminal of the element and adjusting impedance with respect to the frequency of the multiplied harmonic component at the output terminal; a first frequency separation circuit which prevents an imped
    Type: Application
    Filed: February 2, 2018
    Publication date: July 23, 2020
    Inventors: Sung-Ku YEO, Bum-Man KIM, Yun-Sik PARK, Sang-Wook KWON, Dong-Gyu MIN, Sung-Bum PARK
  • Patent number: 10680465
    Abstract: A wireless power transmitter may comprise: a signal generation unit which generates a differential signal; an amplifier which amplifies the differential signal with a predetermined gain; a resonance unit which generates an electromagnetic wave using the amplified differential signal and radiates the same; and a signal adjustment unit which senses at least one of the current and the voltage of the amplified differential signal at the input terminal of the resonance unit, and adjusts at least one of the phase and the amplitude of the differential signal output from the signal generation unit, on the basis of the result of the sensing.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: June 9, 2020
    Assignees: Samsung Electronics Co., Ltd., KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Sung-Ku Yeo, Hyun-Jun Ahn, Yun-Seong Eo, Sung-Bum Park
  • Patent number: 10637299
    Abstract: A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: April 28, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Kang-Ho Byun, Kyung-Woo Lee, Young-Min Lee, Se-Ho Park, Yu-Su Kim, Sung-Ku Yeo
  • Publication number: 20200028387
    Abstract: A method for controlling a wireless power receiver including a charging unit and a wireless power receiver are provided. The method includes receiving wireless power; rectifying the received wireless power and outputting Direct Current (DC) wireless power; and determining whether a voltage of the rectified wireless power is equal to or higher than an allowable voltage of the charging unit.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 23, 2020
    Inventors: Yu-Su KIM, Se-Ho PARK, Sung-Ku YEO, Kang-Ho BYUN, Kyung-Woo LEE
  • Publication number: 20200021138
    Abstract: A wireless power transmitter according to various embodiments of the present invention can comprise a plurality of patch antennas, a coil, and a processor. The processor can control such that an electronic device is detected, the plurality of patch antennas and/or the coil is selected as a power transmission circuit for transmitting power for charging the electronic device, and power is transmitted by means of the plurality of patch antennas and/or the coil in accordance with the selection.
    Type: Application
    Filed: February 20, 2018
    Publication date: January 16, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Ku YEO, Chang-Yeong KIM, Joon-Hyun LEE, Sang-Wook KWON, Sung-Bum PARK, Jae-Hyun PARK
  • Patent number: 10511192
    Abstract: An electronic device is provided that includes a housing and a power receiver disposed within the housing. The power receiver includes a conductive pattern for receiving power wirelessly. The conductive pattern includes a main coil having a plurality of turns, a first sub-coil formed at an input port of the main coil, and a second sub-coil formed at an output port of the main coil. The electronic device also includes a controller configured to control to receive power using the conductive pattern.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: December 17, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jae-Hyun Park, Dong-Zo Kim, Do-Won Kim, Bong-Chul Kim, Sung-Ku Yeo, Young-Ho Ryu, Chong-Min Lee
  • Publication number: 20190379242
    Abstract: An electronic device includes a controller to receive a signal from an external electronic device, and, based at least in part on the received signal, identify a wireless power scheme among at least two wireless power schemes. During the transmission mode, the controller controls the full bridge circuit to convert DC power to AC power based on a wireless power frequency corresponding to the identified wireless power scheme by controlling at least one transistor of the full bridge circuit, and controls to wirelessly transmit power based on the AC power to the external electronic device. During the reception mode, the controller controls to receive power from the external electronic device, controls the full bridge circuit to convert the received power to DC power by controlling transistors of the full bridge circuit, and controls to provide the converted DC power for the battery of the electronic device.
    Type: Application
    Filed: August 20, 2019
    Publication date: December 12, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Ku YEO, Dong-Zo KIM, Bong-Chul KIM, Yu-Su KIM
  • Patent number: 10461583
    Abstract: An electronic device according to various embodiments of the present disclosure includes a power supply configured to supply DC power, a controller configured to determine a wireless power transmission mode or a wireless power reception mode if at least one electronic device is detected, and output a control signal indicating a wireless power transmission frequency supported by the detected electronic device from among a plurality of wireless power transmission frequencies if the wireless power transmission mode is determined, a conversion circuit configured to output the DC power supplied from the power supply as AC power in response to the control signal output from the controller and a wireless power transceiver configured to transmit the AC power supplied.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: October 29, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Ku Yeo, Dong-Zo Kim, Bong-Chul Kim, Yu-Su Kim
  • Publication number: 20190312465
    Abstract: A wireless power transmitting device is provided. The wireless power transmitting device includes a patch antenna, and a transmission/reception processing circuit configured to output a first signal to the patch antenna during a first period, and process a second signal output from the patch antenna during a second period, wherein the patch antenna is configured to transmit a transmission wave using the first signal, and output the second signal to the transmission/reception processing circuit using a reception wave.
    Type: Application
    Filed: June 21, 2019
    Publication date: October 10, 2019
    Inventors: Sung-Ku YEO, Chong-Min LEE, Jae-Seok PARK, Jae-Hyun PARK, Kyung-Woo LEE, Hyo-Seok HAN