Patents by Inventor Jae-Do Roh

Jae-Do Roh 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).

  • Victim system detector, method of detecting a victim system, wireless communication device and wireless communication method
    Patent number: 8437260
    Abstract: A victim system detector for detecting whether a second wireless communication system uses frequency bands that are used by a first wireless communication system (detecting whether the second wireless communication system is a victim system) includes a correlator and a decision unit. The correlator calculates a correlation value between a frequency domain baseband signal associated with the first wireless communication system and a correlation sequence of the second wireless communication system. The decision unit determines, based on the correlation value, whether the second wireless communication system is a victim system. Therefore, the victim system is detected accurately and efficiently.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: May 7, 2013
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Ji-Ho Kim, Jae-Do Roh, Jae-Seok Kim, Sang-Min Lee, Yun-Ho Jung
  • Victim System Detector, Method of Detecting a Victim System, Wireless Communication Device and Wireless Communication Method
    Publication number: 20100165827
    Abstract: A victim system detector for detecting whether a second wireless communication system uses frequency bands that are used by a first wireless communication system (detecting whether the second wireless communication system is a victim system) includes a correlator and a decision unit. The correlator calculates a correlation value between a frequency domain baseband signal associated with the first wireless communication system and a correlation sequence of the second wireless communication system. The decision unit determines, based on the correlation value, whether the second wireless communication system is a victim system. Therefore, the victim system is detected accurately and efficiently.
    Type: Application
    Filed: March 4, 2009
    Publication date: July 1, 2010
    Inventors: Ji-Ho Kim, Jae-Do Roh, Jae-Seok Kim, Sang-Min Lee, Yun-Ho Jung