Patents by Inventor Goon-don Choi

Goon-don 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).

  • VIDEO TELEPHONY SERVICE METHOD IN MOBILE COMMUNICATION NETWORK
    Publication number: 20140333712
    Abstract: A video telephony service method between mobile communication terminals, which can perform video telephony through a mobile communication system, in a mobile communication network, each of the mobile communication terminals storing profile information, the method comprising setting up a call between calling and called mobile communication terminals, transmitting the profile information of the calling mobile communication terminal to the called mobile communication terminal, consulting the profile information received from the calling mobile communication terminal, and transmitting a response signal to the mobile communication system to determine that video telephony is possible for the received profile. The mobile communication system transmits the response signal to the calling mobile communication terminal after establishing conditions for video telephony and further establishing a communication path between the calling and called mobile communication terminals for video telephony.
    Type: Application
    Filed: January 24, 2014
    Publication date: November 13, 2014
    Applicant: SK TELECOM CO., LTO.
    Inventors: NAM-GUN KIM, HYUN-WOOK KIM, GOON-DON CHOI
  • Chatting service method interworking video phone service
    Patent number: 8525867
    Abstract: The present invention implements a chatting the chatting service interworking with a video phone service which can transmit and receive a text during a video phone conversation without terminating the video phone conversation, and furthermore, it improves service quality of a video phone by transmitting and receiving a text during a video phone conversation if a video phone conversation is made in poor an unsuitable environment.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: September 3, 2013
    Assignee: SK Planet Co., Ltd.
    Inventors: Nam Gun Kim, Goon Don Choi, Chang Moon Han
  • Video telephony service method in mobile communication network
    Patent number: 7898564
    Abstract: The video telephony service method includes the step of the mobile communication system, which stores profile information, setting up a call between culling and called mobile communication terminals; the step of the mobile communication system transmitting the profile information of the calling mobile communication terminal to the called mobile communication terminal, as the calling mobile communication terminal transmits the profile information thereof to the mobile communication system; the step of the called mobile communication terminal consulting the profile information, and transmitting a response signal to the mobile communication system after establishing conditions for video telephony if it is determined that video telephony is possible for a received profile, and the mobile communication system transmitting the response signal to the calling mobile communication terminal; and the step of the mobile communication system establishing a communication path between the calling and called mobile communica
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: March 1, 2011
    Assignee: SK Telecom Co., Ltd.
    Inventors: Nam-Gun Kim, Hyun-Wook Kim, Goon-don Choi, Chang-Moon Han
  • CHATTING SERVICE METHOD INTERWORKING VIDEO PHONE SERVICE
    Publication number: 20100208030
    Abstract: The present invention implements a chatting the chatting service interworking with a video phone service which can transmit and receive a text during a video phone conversation without terminating the video phone conversation, and furthermore, it improves service quality of a video phone by transmitting and receiving a text during a video phone conversation if a video phone conversation is made in poor an unsuitable environment.
    Type: Application
    Filed: September 4, 2007
    Publication date: August 19, 2010
    Applicant: SK TELECOM CO., LTD
    Inventors: Nam Gun Kim, Goon Don Choi, Chang Moon Han
  • Video Telephony Service Method in Mobile Communication Network
    Publication number: 20080266377
    Abstract: The video telephony service method includes the step of the mobile communication system, which stores profile information, setting up a call between culling and called mobile communication terminals; the step of the mobile communication system transmitting the profile information of the calling mobile communication terminal to the called mobile communication terminal, as the calling mobile communication terminal transmits the profile information thereof to the mobile communication system; the step of the called mobile communication terminal consulting the profile information, and transmitting a response signal to the mobile communication system after establishing conditions for video telephony if it is determined that video telephony is possible for a received profile, and the mobile communication system transmitting the response signal to the calling mobile communication terminal; and the step of the mobile communication system establishing a communication path between the calling and called mobile communica
    Type: Application
    Filed: September 27, 2005
    Publication date: October 30, 2008
    Applicant: SK TELECOM CO., LTD.
    Inventors: Nam-Gun Kim, Hyun-Wook Kim, Goon-don Choi, Chang-Moon Han
  • Video telephony service method in mobile communication network
    Patent number: RE45228
    Abstract: The video telephony service method includes the step of the mobile communication system, which stores profile information, setting up a call between culling and called mobile communication terminals; the step of the mobile communication system transmitting the profile information of the calling mobile communication terminal to the called mobile communication terminal, as the calling mobile communication terminal transmits the profile information thereof to the mobile communication system; the step of the called mobile communication terminal consulting the profile information, and transmitting a response signal to the mobile communication system after establishing conditions for video telephony if it is determined that video telephony is possible for a received profile, and the mobile communication system transmitting the response signal to the calling mobile communication terminal; and the step of the mobile communication system establishing a communication path between the calling and called mobile communica
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: November 4, 2014
    Assignee: SK Telecom Co., Ltd.
    Inventors: Nam-Gun Kim, Hyun-Wook Kim, Goon-Don Choi