Patents by Inventor Chang-wam Kim

Chang-wam 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).

  • Apparatus and method generating multi RF tone signals in UWB communication system
    Patent number: 7536163
    Abstract: An apparatus and method for converting a frequency of a high frequency signal received from an antenna in an ultra wide band communication system transmitting and receiving using at least two reference frequencies. The method includes generating generation frequencies having frequencies set to convert the frequency of the high frequency signal and mixing the frequency of the high frequency signal and the generation frequencies in at least two stages.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: May 19, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-suk Kang, Tuan-anh Phan, Eun-chul Park, Chun-deok Suh, Chang-wam Kim, Sang-gug Lee
  • Apparatus and method generating multi RF tone signals in UWB communication system
    Publication number: 20050282514
    Abstract: An apparatus and method for converting a frequency of a high frequency signal received from an antenna in an ultra wide band communication system transmitting and receiving using at least two reference frequencies. The method includes generating generation frequencies having frequencies set to convert the frequency of the high frequency signal and mixing the frequency of the high frequency signal and the generation frequencies in at least two stages.
    Type: Application
    Filed: May 25, 2005
    Publication date: December 22, 2005
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Min-suk Kang, Tuan-anh Phan, Eun-chul Park, Chun-deok Suh, Chang-wam Kim, Sang-gug Lee