Patents by Inventor Haeng Yeoun Lee

Haeng Yeoun Lee 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).

  • Composite interface apparatus for key telephone system
    Patent number: 6445931
    Abstract: A hybrid interface apparatus for a key telephone system is disclosed, which apparatus is capable of interfacing a data and voice communication between a terminal such as a key telephone, a mobile telephone, a computer, etc. and a key telephone system. The hybrid interface apparatus according to the present invention includes more than at least one key telephone unit, a main apparatus for connecting the key telephones, a personal computer, and a multi-module connected between the main apparatus and a key telephone unit, a mobile telephone and a personal computer for interfacing a wire-based communication, a wireless communication and a data communication.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: September 3, 2002
    Assignee: LG Information & Communications, Ltd.
    Inventor: Haeng Yeoun Lee