Patents by Inventor Chang-Yun Kim

Chang-Yun Kim 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).

  • Repeating method for a wireless communication system and apparatus thereof
    Patent number: 6640112
    Abstract: A repeating method for a wireless communication system which provides time and space diversities, and an apparatus thereof are disclosed. The method of repeating a forward link communication signal for a wireless communication system includes the steps of: a) transmitting the forward link communication signal through a first transmitting antenna; b) delaying the forward link communication signal for a predetermined time period; and c) transmitting a delayed forward link communication signal which is generated by step b) through a second transmitting antenna. According to the method, when repeating forward and reverse link communication signals, time and space diversities are respectively provided to the base station and the mobile stations.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: October 28, 2003
    Assignee: Shinsegi Telecomm, Inc.
    Inventors: Jin-Woo Lee, Byung-Kook Choi, Jong-Ok Kim, Jung-Hwan Byun, Chang-Yun Kim