Patents by Inventor Byeong-Hwa Cho

Byeong-Hwa Cho 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).

  • Push to talk (PTT) service mobile communication system and method
    Patent number: 7561869
    Abstract: A mobile communication system includes a sender terminal configured to input PTT (Push to Talk) voice data, a PTT server configured to convert the PTT voice data into VMS (Voice Mail System) formatted voice data, and a VMS server configured to receive the VMS formatted voice data from the PTT server and to transmit the VMS formatted voice data to receiver terminals.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: July 14, 2009
    Assignee: LG Electronics Inc.
    Inventor: Byeong-Hwa Cho
  • Push to talk (PTT) service mobile communication system and method
    Publication number: 20060063513
    Abstract: A mobile communication system includes a sender terminal configured to input PTT (Push to Talk) voice data, a PTT server configured to convert the PTT voice data into VMS (Voice Mail System) formatted voice data, and a VMS server configured to receive the VMS formatted voice data from the PTT server and to transmit the VMS formatted voice data to receiver terminals.
    Type: Application
    Filed: September 22, 2005
    Publication date: March 23, 2006
    Inventor: Byeong-Hwa Cho