Patents by Inventor Dong Do Lee

Dong Do 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).

  • Apparatus and method for controlling a power of reverse link in CDMA system
    Patent number: 7200127
    Abstract: The present invention relates to a method of controlling transmitting power level of a mobile station in CDMA communication system. This invention estimates a moving speed of a mobile station and changes a power control step size according to the estimated moving speed, thereby tracking power level control command, which is transmitted from a base station to compensate for the power variation of its received signals, quickly and precisely.
    Type: Grant
    Filed: October 21, 2000
    Date of Patent: April 3, 2007
    Assignee: SK Telecom Co., Ltd.
    Inventors: Dong Do Lee, Sang Yun Lee, Byung Moo Kim
  • Method for synchronizing reverse link and transmission method using synchronous reverse link
    Patent number: 6516007
    Abstract: A transmission method using synchronous reverse links establishes synchronization by controlling transmission times of mobile stations according to synchronization control messages received through a control channel and then controlling the transmission times according to synchronization control bits received through a traffic channel.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: February 4, 2003
    Assignee: SK Telecom Co., Ltd.
    Inventors: Een Kee Hong, Dong Do Lee, Jun Mo Koo, Sang Yon Lee, Sung Jae Lee