Patents by Inventor Jingu CHOI

Jingu 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).

  • Patent number: 11562939
    Abstract: A semiconductor package includes a connection layer, a semiconductor chip disposed at a center portion of the connection layer, an adhesive layer disposed on the semiconductor chip, a heat spreader layer disposed on the adhesive layer, and a lower redistribution layer disposed on the connection layer and a bottom surface of the semiconductor chip. A width of the adhesive layer is the same as a width of the semiconductor chip, and a width of the heat spreader layer is less than the width of the adhesive layer.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: January 24, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jingu Kim, Sangkyu Lee, Yongkoon Lee, Seokkyu Choi
  • Publication number: 20230003518
    Abstract: One embodiment of the present disclosure relates to a vehicle radar apparatus and a method of controlling the same. The radar apparatus according to the present embodiment may include an antenna unit including Nt transmitting antennas and Nr receiving antennas, wherein one of the Nt transmitting antennas is vertically offset from the other transmitting antennas, or one of the Nr receiving antennas is vertically offset from the other receiving antennas, a transceiver configured to control the Nt transmitting antennas to transmit a phase shift transmission signal having N different phase shift values (an) and control the Nr receiving antennas to receive a reflected signal reflected from a target, and a signal processor configured to determine a height (h) of the target based on a discrete phase shift value (amax) that is a phase shift value having the greatest reception power among N phase shift values.
    Type: Application
    Filed: July 5, 2022
    Publication date: January 5, 2023
    Inventors: Jingu LEE, Han Byul LEE, JungHwan CHOI, Jae Hyun HAN
  • Patent number: 11527924
    Abstract: The present specification relates to a device and method for supporting heterogeneous communication in a wireless power transfer system. The present specification discloses a wireless power reception device comprising: a power pickup circuit configured to receive, from a wireless power transfer device, wireless power generated on the basis of magnetic coupling in a power transfer phase; and a communication and control circuit configured to transmit, to the wireless power transfer device, a first random address packet including a random address of the wireless power reception device or receive, from the wireless power transfer device, a second random address packet including a random address of the wireless power transfer device via in-band communication. By performing a handover using a random address, cross reference can be prevented and security can be enhanced, and thus a BLE connection in a wireless charging system can be more safely performed.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: December 13, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Joonho Park, Jinkwon Lim, Jingu Choi, Yongcheol Park
  • Patent number: 11469627
    Abstract: The present disclosure relates to a device and method for wireless power transfer to multiple devices using a multi-coil. The device disclosed in the specification comprises: a power pickup unit configured to receive wireless power from a wireless power transfer device having a plurality of primary coils at an operation frequency by magnetic coupling to the wireless power transfer device and convert an alternating current signal generated by the wireless power into a direct current signal; a communication/control unit including an in-band communication module configured to be supplied with the direct current signal from the power pickup unit and perform communication with the wireless power transfer device by using the operating frequency, and an out-band communication module configured to perform communication with the wireless power transfer device by using a frequency other than the operating frequency; and a load configured to be supplied with the direct current signal from the power pickup unit.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: October 11, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Jingu Choi, Jinkwon Lim, Taeyoung Song, Yongcheol Park, Joonho Park
  • Publication number: 20220294272
    Abstract: The present specification relates to: a wireless power receiving device, which can receive information about a power class on the basis of out-band communications at a short distance before the wireless power receiving device is positioned at the charging position of a wireless power transmitting device, and negotiate power class; the wireless power transmitting device; a wireless power transmitting method; a wireless power receiving method; and a wireless power transmitting system. According to the present specification, whether power of the wireless power transmitting device (or a charger) is suitable for the wireless power receiving device (or a device to be charged) is quickly identified remotely or at a short distance prior to a wireless power transmission (or wireless charging), appropriate charging power is set through negotiation, and then wireless charging can be safely performed.
    Type: Application
    Filed: March 5, 2020
    Publication date: September 15, 2022
    Inventors: Minsoo LEE, Jinkwon LIM, Jingu CHOI
  • Patent number: 11445453
    Abstract: The present disclosure relates to a method and apparatus for controlling a power by using the Bluetooth Low Energy technology performed by a control device. According to the present disclosure, the method and apparatus includes establishing a connection with a first device and a second device through Bluetooth Low Energy (BLE) and receiving, from the first device, a first request message for requesting a transmission power change of the first device. In addition, the method and apparatus includes receiving, from the second device, a second request message for requesting a transmission power change of the second device and changing a transmission power of the control device to a specific transmission power value based on the first change value and the second change value.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: September 13, 2022
    Assignee: LG Electronics Inc.
    Inventors: Jingu Choi, Taeyoung Song, Minsoo Lee, Jinkwon Lim
  • Publication number: 20220278553
    Abstract: According to one aspect of the present invention, a wireless power reception device includes: a power pickup circuit configured to form a magnetic coupling with a wireless power transmission device to receive wireless power from the wireless power transmission device; and a communication/control circuit configured to perform transmission control for the wireless power and at least one of data transmission and reception on the basis of communication with the wireless power transmission device, wherein the communication/control circuit can initiate a process for generating an authenticated link for charging by accepting only a connection request received within a prescribed authentication accept period.
    Type: Application
    Filed: June 5, 2020
    Publication date: September 1, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Jaehyu KIM, Minsoo LEE, Jinkwon LIM, Jingu CHOI
  • Publication number: 20220277285
    Abstract: According to an aspect of the present invention, a wireless power reception device includes: a power pick-up circuit which is configured to form magnetic coupling with a wireless power transmission device and receive wireless power from the wireless power transmission device; and a communication/control circuit which is configured to perform at least one among control of the transmission of the wireless power and data transmission and reception on the basis of communication with the wireless power transmission device, wherein the communication/control circuit can receive a check message for checking payment information from the wireless power transmission device and perform a payment procedure for wireless power transmission, and can provide a user interface related to information for the payment procedure.
    Type: Application
    Filed: June 29, 2020
    Publication date: September 1, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Jinkwon LIM, Minsoo LEE, Jingu CHOI, Joonho PARK, Jaehyu KIM, Yongcheol PARK
  • Publication number: 20220278561
    Abstract: A wireless power transmission device according to an embodiment of the present specification comprises: a power conversion circuit for transmitting wireless power to a wireless power reception device by means of magnetic coupling with the wireless power reception device at an operating frequency; and a communication/control circuit for communicating with the wireless power reception device by using in-band communication that uses the operating frequency and/or out-band communication that uses a frequency other than the operating frequency, and for communicating with at least one other wireless power transmission device by using the out-band communication, wherein the communication/control circuit measures the distance to the wireless power reception device and transmits the information about the measured first distance to the other wireless power transmission device.
    Type: Application
    Filed: May 15, 2020
    Publication date: September 1, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Jingu CHOI, Jinkwon LIM, Minsoo LEE, Joonho PARK, Jaehyu KIM, Yongcheol PARK
  • Publication number: 20220263819
    Abstract: According to one embodiment of the present specification, a method for performing authentication between an authentication initiator and an authentication responder in a wireless power transmission system comprises the steps in which: the authentication initiator transmits an initiator certificate chain and an initiator signature to the authentication responder; the authentication initiator receives a responder certificate chain and a responder signature from the authentication responder who has authenticated the authentication initiator by verifying the initiator signature information; and the authentication initiator verifies the responder signature to authenticate the authentication responder.
    Type: Application
    Filed: July 13, 2020
    Publication date: August 18, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Jaehyu KIM, Jingu CHOI, Minsoo LEE, Jinkwon LIM
  • Publication number: 20220239347
    Abstract: The present invention relates to an access control method and device in a wireless power transmission system. A wireless power transmission device comprises: a power conversion circuit configured to have a plurality of primary coils and transmit wireless power to a wireless power reception device by using the primary coil which has formed magnetic coupling to the wireless power reception device at an operating frequency; and a communication/control circuit configured to perform in-band communication with the wireless power reception device by using the operating frequency and perform out-band communication with the wireless power reception device by using a frequency other than the operating frequency, wherein the communication/control circuit can transmit information for notifying whether or not connection to the wireless power reception device is possible by using the out-band communication.
    Type: Application
    Filed: January 30, 2020
    Publication date: July 28, 2022
    Inventors: Jingu CHOI, Jinkwon LIM, Minsoo LEE, Joonho PARK, Jaehyu KIM, Yongcheol PARK
  • Publication number: 20220222064
    Abstract: The present specification relates to wireless power transmission and particularly to a wireless power reception device, wireless power transmission device, method, and system, which can receive and update firmware of a wireless power reception device and/or wireless charging transmission device by using wireless communication. According to the present specification, the firmware of the wireless power reception device and firmware of the wireless power transmission device can be maintained in an up-to-date state.
    Type: Application
    Filed: April 21, 2020
    Publication date: July 14, 2022
    Inventors: Joonho PARK, Jinkwon LIM, Jingu CHOI
  • Publication number: 20220217617
    Abstract: A wireless power reception device according to an embodiment of the present specification comprises: a power pickup circuit configured to receive wireless power from a wireless power transmission device by magnetic coupling with the wireless power transmission device at an operating frequency, and convert an AC signal generated by the wireless power into a DC signal; and a communication/control circuit for communicating with the wireless power transmission device by using in-band communication using the operation frequency and out-band communication using a frequency other than the operation frequency, wherein the communication/control circuit transmits access information of a Wi-Fi network connected to the wireless power reception device, to the wireless power transmission device by using the out-band communication.
    Type: Application
    Filed: April 29, 2020
    Publication date: July 7, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Jinkwon LIM, Minsoo LEE, Jingu CHOI, Taeyoung SONG, Joonho PARK, Yongcheol PARK
  • Publication number: 20220200661
    Abstract: According to one aspect of the present invention, a wireless power receiver for receiving wireless power on the basis of out-band communication is provided. The receiver comprises: a power pick-up circuit configured to receive wireless power from a wireless power transmitter at an operating frequency; and a communication/control circuit configured to perform at least one of in-band communication using the operating frequency and out-band communication using a frequency other than the operating frequency. Here, on the basis of at least one of the received voltage in the power pick-up circuit and a received signal strength indicator (RSSI) of a first signal related to the out-band communication, the communication/control circuit may perform a power interruption procedure for interrupting transmission of the wireless power and a disconnection procedure for releasing the connection of the out-band communication.
    Type: Application
    Filed: January 14, 2020
    Publication date: June 23, 2022
    Inventors: Minsoo LEE, Jaehyu KIM, Jinkwon LIM, Jingu CHOI
  • Patent number: 11367449
    Abstract: The present invention relates to a method and an apparatus for calling a voice recognition service by using Bluetooth low energy (LE). In particular, a method performed by a first device may comprise the steps of: receiving a first request message requesting start of a voice recognition service, from a second device connected to the first device through Bluetooth communication, wherein the first request message is generated by generation of a first wake word pre-configured in the second device; executing a voice gateway connected to multiple voice managers in response to the first request message; and executing a voice recognition service between the second device and a first voice manager determined by the voice gateway among the multiple voice managers.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: June 21, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Taeyoung Song, Jingu Choi
  • Publication number: 20220190646
    Abstract: The present specification relates to a device and a method enabling in-band communication and out-band communication between a wireless power transmission device and a wireless power receiving device. The present specification discloses a wireless power transmission device, a wireless power transmission method, a wireless power receiving device, a wireless power receiving method and a wireless power transmission system, whereby the existence or not of an inter-device communication connection history is checked using whitelist information of an out-band communication module, and when corresponding to a reconnection, out-band communication is connected, and data exchange for wireless power transmission is carried out via the out-band communication.
    Type: Application
    Filed: April 16, 2020
    Publication date: June 16, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Joonho PARK, Minsoo LEE, Jinkwon LIM, Jingu CHOI
  • Publication number: 20220158504
    Abstract: The present specification relates to a device and method capable of in-band communication and out-band communication between a wireless power transmitting device and a wireless power receiving device. The present specification provides a wireless power transmitting device, a wireless power transmitting method, a wireless power receiving device, a wireless power receiving method, and a wireless charging system capable of preventing cross connection when connecting out-band communication by exchanging necessary information by using in-band communication.
    Type: Application
    Filed: March 23, 2020
    Publication date: May 19, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Joonho PARK, Jinkwon LIM, Jingu CHOI
  • Publication number: 20220158505
    Abstract: The present invention relates to a near field communication method and device in a wireless power transmission system.
    Type: Application
    Filed: November 29, 2019
    Publication date: May 19, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Jingu CHOI, Jinkwon LIM, Minsoo LEE, Joonho PARK, Yongcheol PARK
  • Publication number: 20220131422
    Abstract: The present invention relates to a device and method for performing power allocation and out-band activation by using short-range communication in a wireless power transmission system.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 28, 2022
    Inventors: Jingu CHOI, Jinkwon LIM, Taeyoung SONG, Yongcheol PARK, Joonho PARK
  • Publication number: 20220123590
    Abstract: The present specification relates to a wireless power transmission apparatus and a wireless power reception apparatus, which can transmit and update firmware of the wireless power transmission apparatus through out-band communication between the wireless power transmission apparatus and the wireless power reception apparatus, and to firmware updating of the wireless power transmission apparatus using out-band communication.
    Type: Application
    Filed: January 29, 2020
    Publication date: April 21, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Jaehyu KIM, Jingu CHOI, Minsoo LEE, Jinkwon LIM