Patents by Inventor Gyunghwan YOOK

Gyunghwan YOOK 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: 20250047144
    Abstract: The present disclosure provides: a method by which a wireless power transmitter transmits wireless power to a wireless power receiver in a wireless power transmission system; and a device using same, the method comprising: entering a power transmission phase related to the transmission of the wireless power; receiving, from the wireless power receiver, a first application message in the power transmission phase; and transmitting, to the wireless power receiver, a second application message, which is a response to the first application message in the power transmission phase, wherein the wireless power transmitter initiates the transmission of the second application message within a specific time period, and the start point of the specific time period is the end point of the first application message.
    Type: Application
    Filed: December 7, 2022
    Publication date: February 6, 2025
    Inventors: Jinho YOUN, Gyunghwan YOOK
  • Patent number: 12218524
    Abstract: A wireless power transmitting device according to an embodiment of the present specification transmits wireless power to a wireless power receiving device, and includes a power conversion circuit including a primary coil for transmitting the wireless power to the wireless power receiving device and a communication/control circuit for communicating with the wireless power receiving device and controlling the power conversion circuit, wherein, to detect foreign substances between the wireless power receiving device and the wireless power transmitting device, the communication/control circuit stops the transmission of the wireless power for a slot time, detects the foreign substances on the basis of a change in the voltage or current of the primary coil within the slot time, and sets the slot time to start from a point in time when the current of the primary coil is 0.
    Type: Grant
    Filed: September 6, 2021
    Date of Patent: February 4, 2025
    Assignee: LG Electronics Inc.
    Inventors: Hyoungseok Kim, Jaeyeol Kim, Seonghun Lee, Gyunghwan Yook, Hongkwon Kim
  • Patent number: 12170449
    Abstract: A wireless power transmitting device according to an embodiment of the present specification relates to a wireless power transmitting device for transmitting wireless power to a wireless power receiving device, and comprises: a power conversion circuit including a primary coil for transmitting the wireless power to the wireless power receiving device; and a communication/control circuit for communicating with the wireless power receiving device and controlling the power conversion circuit, wherein, before transmitting the wireless power to the wireless power receiving device, the communication/control circuit temporarily applies driving power to the primary coil and then stops the transmission of the driving power, and obtains a quality factor on the basis of a change in the voltage or current of the primary coil during a period of time in which the transmission of the driving power is stopped.
    Type: Grant
    Filed: September 6, 2021
    Date of Patent: December 17, 2024
    Assignee: LG Electronics Inc.
    Inventors: Hyoungseok Kim, Jaeyeol Kim, Seonghun Lee, Gyunghwan Yook, Hongkwon Kim
  • Patent number: 12166365
    Abstract: A method by which a wireless power transmitter transmits wireless power, according to one embodiment of the present specification, comprises: a ping step of transmitting a digital ping, and receiving a response to the digital ping from a wireless power receiver; a configuration step of receiving, from the wireless power receiver, a configuration packet including information about whether the wireless power receiver supports an authentication function; and a power transmission step of transmitting wireless power to the wireless power receiver, wherein the power transmission step includes a low-power transmission step of transmitting low wireless power, an authentication step of authenticating the wireless power transmitter on the basis the supporting of the authentication function by the wireless power receiver, and a high-power transmission step of transmitting high wireless power on the basis of the successful authentication of the wireless power transmitter in the authentication step.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: December 10, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Jingu Choi, Yongcheol Park, Minsoo Lee, Gyunghwan Yook
  • Publication number: 20240388135
    Abstract: A wireless power receiving device according to one embodiment of the present specification comprises: a power pickup circuit for receiving wireless power from a wireless power transmitting device; and a communication/control circuit for communicating with the wireless power transmitting device by using in-band communication using a power signal of the wireless power and/or out-band communication, which is wireless communication that differs from the in-band communication, and for controlling the reception of the wireless power, wherein the communication/control circuit terminates the connection of the out-band communication on the basis of the removal of the power signal from the wireless power transmitting device in a state in which the connection of the wireless power transmitting device and the out-band communication is established.
    Type: Application
    Filed: July 26, 2024
    Publication date: November 21, 2024
    Inventors: Jinho YOUN, Jingu CHOI, Gyunghwan YOOK, Yongcheol PARK
  • Publication number: 20240372403
    Abstract: A wireless power transmission apparatus including a controller configured to initiate a digital ping to solicit a response from a wireless power reception apparatus, receive the response from the wireless power reception apparatus, and perform a negotiation for a first power level with the wireless power reception apparatus, and a power converter configured to transmit a wireless power to the wireless power reception apparatus based on the first power level, wherein the controller is configured to transmit, to the wireless power reception apparatus in response to a received power packet, a bit pattern response requesting a communication by the wireless power transmission apparatus to change the first power level, and transmit a packet related to a second power level to the wireless power reception apparatus, and wherein the bit pattern response is defined as a pattern different from a bit pattern for an 8-bit ACK response, a bit pattern for an 8-bit NAK response and a bit pattern for an 8-bit ND response.
    Type: Application
    Filed: July 17, 2024
    Publication date: November 7, 2024
    Applicant: LG ELECTRONICS INC.
    Inventors: Yongcheol Park, Gyunghwan Yook
  • Publication number: 20240356384
    Abstract: The present disclosure provides a method, performed by a wireless power receiver, for receiving wireless power in a wireless power transmitting system, and an apparatus using the method, the method comprising: transmitting, to a wireless power transmitter, a configuration packet including a field regarding availability of out-of-band (OB) of the wireless power receiver; receiving, from the wireless power transmitter, a capability packet including a field regarding availability of OB of the wireless power transmitter; and establishing a Bluetooth low energy (BLE) connection with the wireless power transmitter on the basis of the configuration packet and the capability packet, wherein the wireless power receiver transmits a first BLE packet including a plurality of Qi packets to the wireless power transmitter through the LBE connection, and the wireless power receiver receives a response related to the first BLE packet from the wireless power transmitter through the BLE connection.
    Type: Application
    Filed: July 13, 2021
    Publication date: October 24, 2024
    Inventors: Minsoo LEE, Yongcheol PARK, Gyunghwan YOOK, Taewook KWON, Jinho YOUN
  • Publication number: 20240322614
    Abstract: A wireless power transmitter including a power conversion unit configured to transmit wireless power generated based on magnetic coupling in a power transfer phase and a control unit configured to receive, from the wireless power receiver operating at a first operating point, a first received power packet of the first operating point and a second received power packet of the first operating point based on the first received power packet of the first operating point and the second received power packet of the first operating point and configured to receive a first received power packet of the second operating point and a second received power packet of the second operating point related to power calibration and construct a second power calibration curve based on the first received power packet of the second operating point and the second received power packet of the second operating point.
    Type: Application
    Filed: May 30, 2024
    Publication date: September 26, 2024
    Inventors: Yongcheol PARK, Gyunghwan YOOK
  • Publication number: 20240322611
    Abstract: The present disclosure provides a method, performed by a wireless power receiver, for receiving wireless power in a wireless power transmission system, and an apparatus using the method, the method comprising: transmitting, to a wireless power transmitter, information related to a coupling coefficient between the wireless power transmitter and the wireless power receiver; transmitting information related to a power profile of the wireless power receiver to the wireless power transmitter, wherein the information related to the power profile indicates that the wireless power receiver supports a low-coupling power profile; and receiving the wireless power from the wireless power transmitter on the basis of a response to the information related to the power profile, wherein the low-coupling power profile is a power profile used on the basis of the coupling coefficient between the wireless power receiver and the wireless power transmitter being low.
    Type: Application
    Filed: July 11, 2022
    Publication date: September 26, 2024
    Inventors: Jinho YOUN, Gyunghwan YOOK
  • Publication number: 20240322613
    Abstract: The present invention relates to an apparatus and a method for performing power calibration in a wireless power transmission system. The present specification provides a wireless power transmission apparatus comprising: a power conversion unit configured to transmit, in a power transfer phase, wireless power generated on the basis of magnetic coupling to a wireless power receiving device; and a communication/control unit configured to perform an initial calibration for a power parameter prior to the power transfer phase, receive a first received power packet from the wireless power receiving device indicating the power received by the wireless power receiving device during the power transfer phase, and detect foreign matter by using the received power and a first power loss determined on the basis of the initial calibration.
    Type: Application
    Filed: May 29, 2024
    Publication date: September 26, 2024
    Applicant: LG ELECTRONICS INC.
    Inventors: Yongcheol PARK, Joonho PARK, Gyunghwan YOOK
  • Publication number: 20240314854
    Abstract: The present specification provides a method for transmitting an address relating to out-band communication performed by a wireless power receiver in a wireless power transmission system, and a device using same, the method characterized by: transmitting to a wireless power transmitter the address relating to the out-band communication of the wireless power receiver, by means of in-band communication established with the wireless power transmitter; exchanging information relating to scan with the wireless power transmitter prior to the establishment of the out-band communication; and establishing the out-band communication on the basis of the address relating to the out-band communication and the information relating to the scan, wherein the information relating to the scan comprises additional information relating to the wireless power receiver.
    Type: Application
    Filed: January 28, 2022
    Publication date: September 19, 2024
    Applicant: LG ELECTRONICS INC.
    Inventors: Minsoo LEE, Yongcheol PARK, Taewook KWON, Gyunghwan YOOK, Jinho YOUN
  • Patent number: 12095284
    Abstract: A wireless power receiving device according to one embodiment of the present specification comprises: a power pickup circuit for receiving wireless power from a wireless power transmitting device; and a communication/control circuit for communicating with the wireless power transmitting device by using in-band communication using a power signal of the wireless power and/or out-band communication, which is wireless communication that differs from the in-band communication, and for controlling the reception of the wireless power, wherein the communication/control circuit terminates the connection of the out-band communication on the basis of the removal of the power signal from the wireless power transmitting device in a state in which the connection of the wireless power transmitting device and the out-band communication is established.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: September 17, 2024
    Assignee: LG Electronics Inc.
    Inventors: Jinho Youn, Jingu Choi, Gyunghwan Yook, Yongcheol Park
  • Patent number: 12088123
    Abstract: A wireless power reception device according to an embodiment of the present specification comprises a controller for: receiving wireless power from a wireless power transmission device, and performing power pickup for receiving the wireless power from the wireless power transmission device by magnetic coupling with the wireless power transmission device at an operating frequency; and communicating with the wireless power transmission device by using at least one of in-band communication using the operating frequency and out-band communication using a frequency other than the operating frequency, and controlling reception of the wireless power, wherein, in the power transmission step of receiving the wireless power, the controller transmits or receives, using the in-band communication, a message for controlling the wireless power, and transmits or receives, using the out-band communication, an authentication message for authentication of the wireless power transmission device.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: September 10, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Yongcheol Park, Minsoo Lee, Gyunghwan Yook, Jingu Choi
  • Patent number: 12081042
    Abstract: A wireless power reception device according to an embodiment of the present document comprises: a power pickup circuit which receives wireless power from a wireless power transmission device; and a communication/control circuit which communicates with the wireless power transmission device and controls the wireless power, wherein the communication/control circuit may transmit and receive application-level messages with the wireless power transmission device by using a data transport stream including an auxiliary data control (ADC) packet and a plurality of continuous auxiliary data transmission (ADT) packets, and transmits a data packet including information about the maximum size of the ADT packet to the wireless power transmission device.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: September 3, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Yongcheol Park, Gyunghwan Yook, Jinho Youn
  • Patent number: 12074448
    Abstract: A wireless power transmission apparatus including a controller configured to initiate a digital ping to solicit a response from a wireless power reception apparatus, perform a negotiation for a first available power indicator with the wireless power reception apparatus; and a power converter configured to transmit a wireless power to the wireless power reception apparatus according to the first available power indicator, wherein the controller is configured to transmit, to the wireless power reception apparatus in response to a received power packet, a bit pattern response requesting a communication by the wireless power transmission apparatus to change the first available power indicator, and transmit a packet related to a second available power indicator to the wireless power reception apparatus, and wherein the bit pattern response is defined as a pattern different from a bit pattern for an 8-bit ACK response, a bit pattern for an 8-bit NAK response and a bit pattern for an 8-bit ND response.
    Type: Grant
    Filed: April 21, 2023
    Date of Patent: August 27, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Yongcheol Park, Gyunghwan Yook
  • Publication number: 20240243618
    Abstract: The present disclosure provides a method, performed by a wireless power transmitter, for transmitting wireless power in a wireless power transmission system, and an apparatus using same, the method comprising: receiving, from at least one wireless power transmitter, a configuration packet notifying the availability of out of band (OB) in a configuration phase; transmitting, to the at least one wireless power receiver, a capability packet notifying the availability of the OB in a negotiation phase; and establishing a Bluetooth low energy (BLE) connection with the at least one wireless power receiver on the basis of the configuration packet and the capability packet, wherein the BLE connection is a connection based on a BLE isochronous (ISO) channel, and through the BLE connection, the at least one wireless power transmitter exchanges at least one piece of power control data with the at least one wireless power receiver in at least one sub-event included in an interval of the BLE ISO channel.
    Type: Application
    Filed: May 17, 2022
    Publication date: July 18, 2024
    Inventors: Minsoo LEE, Gyunghwan YOOK, Jinho YOUN, Yongcheol PARK
  • Patent number: 12034318
    Abstract: A wireless power transmitter including a power conversion unit configured to transmit wireless power generated based on magnetic coupling in a power transfer phase and a control unit configured to receive, from the wireless power receiver operating at a first operating point, a first received power packet of the first operating point and a second received power packet of the first operating point based on the first received power packet of the first operating point and the second received power packet of the first operating point and configured to receive a first received power packet of the second operating point and a second received power packet of the second operating point related to power calibration and construct a second power calibration curve based on the first received power packet of the second operating point and the second received power packet of the second operating point.
    Type: Grant
    Filed: November 16, 2022
    Date of Patent: July 9, 2024
    Assignee: LG Electronics Inc.
    Inventors: Yongcheol Park, Gyunghwan Yook
  • Publication number: 20240213817
    Abstract: Provided in the present disclosure are a method by which a wireless power transmitter transmits wireless power in a wireless power transmission system, and a device using same, the method comprising: establishing a power transmission contract with a wireless power receiver in a negotiation phase; and transmitting, to the wireless power receiver, wireless power on the basis of the power transmission contract in a power transmission phase, wherein: the wireless power transmitter receives request information from the wireless power receiver in the negotiation phase; the request information is information related to the unit size of at least one piece of auxiliary data transport (ADT) information transmitted by means of the wireless power transmitter; and the wireless power transmitter transmits, to the wireless power receiver, the at least one piece of ADT information in the power transmission phase on the basis of the information related to the unit size.
    Type: Application
    Filed: April 26, 2022
    Publication date: June 27, 2024
    Inventors: Jinho YOUN, Gyunghwan YOOK
  • Patent number: 12021397
    Abstract: The present invention relates to an apparatus and a method for performing power calibration in a wireless power transmission system. The present specification provides a wireless power transmission apparatus comprising: a power conversion unit configured to transmit, in a power transfer phase, wireless power generated on the basis of magnetic coupling to a wireless power receiving device; and a communication/control unit configured to perform an initial calibration for a power parameter prior to the power transfer phase, receive a first received power packet from the wireless power receiving device indicating the power received by the wireless power receiving device during the power transfer phase, and detect foreign matter by using the received power and a first power loss determined on the basis of the initial calibration.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: June 25, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Yongcheol Park, Joonho Park, Gyunghwan Yook
  • Publication number: 20240204577
    Abstract: The present disclosure provides a method for receiving wireless power by a wireless power receiver in a wireless power transmission system and a device using same, the method comprising: in a negotiation phase, transmitting request information to a wireless power transmitter and establishing a power transfer contract with the wireless power transmitter on the basis of the request information; and in a power transfer phase, receiving the wireless power from the wireless power transmitter on the basis of the power transfer contract, wherein the request information comprises information related to the number of cycles of FSK, the wireless power receiver receives data information from the wireless power transmitter through the FSK based on the information related to the number of cycles, and the wireless power receiver decodes the FSK in an interval changing according to the number of cycles.
    Type: Application
    Filed: April 20, 2022
    Publication date: June 20, 2024
    Inventors: Jinho YOUN, Gyunghwan YOOK