Patents by Inventor Munhwan Choi

Munhwan 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).

  • ELECTRONIC DEVICE PERFORMING CALL WITH USER OF METAVERSE AND METHOD FOR OPERATING THE SAME
    Publication number: 20240114062
    Abstract: An example electronic device may include at least one processor and a communication device.
    Type: Application
    Filed: August 10, 2023
    Publication date: April 4, 2024
    Inventors: Yongsuk KWON, Sooyoung NAM, Youngjun SEO, Munhwan CHOI, Sunmin HWANG
  • ELECTRONIC DEVICE FOR TRANSMITTING AND RECEIVING MESSAGES WITH USER OF METAVERSE AND METHOD FOR OPERATING THE SAME
    Publication number: 20240114091
    Abstract: An example electronic device may include at least one processor and a communication device.
    Type: Application
    Filed: August 15, 2023
    Publication date: April 4, 2024
    Inventors: Yongsuk KWON, Youngjun SEO, Munhwan CHOI, Sunmin HWANG
  • ELECTRONIC DEVICE AND SERVER PROVIDING PUSH-TO-TALK SERVICE AND METHOD FOR OPERATING THE SAME
    Publication number: 20230076586
    Abstract: According to various embodiments, an electronic device comprising a processor, a communication module circuitry operatively connected to the processor, and an output device operatively connected to the processor may be provided. The processor may be configured to activate a first channel for providing a push-to-talk (PTT) service and deactivate a second channel for providing the PTT service in a state in which the first channel and the second channel are generated, transmit a first message associated with the first channel including information indicating that the first channel is activated, through the communication module circuitry to a PTT server configured to provide the PTT service, transmit a second message associated with the second channel including information indicating that the channel is deactivated, through the communication module circuitry to the PTT server, output first media data associated with the first channel using first part of the output device.
    Type: Application
    Filed: May 20, 2022
    Publication date: March 9, 2023
    Inventors: Killyeon KIM, Yunsun BAEK, Jihyun YOON, Jungdo LEE, Munhwan CHOI
  • Method of communication based on controlling receive chain in wireless local area network and apparatus for the same
    Patent number: 9414402
    Abstract: A method of communication based on a receive chain control, performed by a receiver, in a wireless local area network is provided. The method includes: receiving a frame from a transmitter, the frame indicating a multi receive chain operation, activating at least one receive chain, each receive chain processing a received signal transmitted through each spatial stream, and receiving at least one data field from the transmitter through the at least one activated receive chain.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: August 9, 2016
    Assignees: LG ELECTRONICS INC., SNU R&DB FOUNDATION
    Inventors: Ill Soo Sohn, Sunghyun Choi, Seungmin Yoo, Hyewon Lee, Munhwan Choi, Yong Ho Seok, Okhwan Lee
  • Method for scanning access points during station's handoff procedure in wireless communication system and station performing the method, and network interface supporting the method and wireless communication system enabling the method
    Patent number: 8194606
    Abstract: A wireless communication system includes at least one AP assigned with a unique MAC address and a shared virtual MAC address; and at least one mobile station to search the at least one AP, receive AP information from the retrieved AP, and perform a handoff, wherein the mobile station transmits query data to the shared virtual MAC address, receives response data from the AP, determines whether the AP exists on a predetermined channel, and when the AP exists on the channel, requests the AP having the shared virtual MAC address for AP information, and receives the AP information from the AP.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: June 5, 2012
    Assignees: Samsung Electronics Co., Ltd., Seoul National University Industry Foundation
    Inventors: Youngsoo Kim, Sunghyun Choi, Kyung Hun Jang, Sunggeun Jin, Hyo Sun Hwang, Munhwan Choi
  • Method for scanning access points during station's handoff procedure in wireless communication system and station performing the method, and network interface supporting the method and wireless communication system enabling the method
    Publication number: 20080056211
    Abstract: A wireless communication system includes at least one AP assigned with a unique MAC address and a shared virtual MAC address; and at least one mobile station to search the at least one AP, receive AP information from the retrieved AP, and perform a handoff, wherein the mobile station transmits query data to the shared virtual MAC address, receives response data from the AP, determines whether the AP exists on a predetermined channel, and when the AP exists on the channel, requests the AP having the shared virtual MAC address for AP information, and receives the AP information from the AP.
    Type: Application
    Filed: February 16, 2007
    Publication date: March 6, 2008
    Applicants: Samsung Electronics Co., Ltd., Seoul National University Industry Foundation
    Inventors: Youngsoo Kim, Sunghyun Choi, Kyung Hun Jang, Sunggeun Jin, Hyo Sun Hwang, Munhwan Choi