Patents by Inventor Hui-Myung Oh

Hui-Myung Oh 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).

  • Patent number: 7411551
    Abstract: Disclosed is a wireless positioning system and method that can perform a high-precision position tracking. The wireless positioning system includes a target device that is an object of wireless positioning, beacon devices and a processing unit. The beacon devices transmits wireless signals and sense reception time points of the wireless signals transmitted from the other beacon devices and the target device and received at time points after the transmission of the wireless signal. The target device receives the wireless signal transmitted from at least one of the beacon devices, and then transmits the wireless signal to the beacon devices. The processing unit obtains the position of the target device by calculating distances between the beacon devices and the target device using information about the reception time points of the wireless signals sensed by the respective beacon devices.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: August 12, 2008
    Assignee: Korea Electrotechnology Research Institute
    Inventors: Sungsoo Choi, Hui-Myung Oh, Kwan-Ho Kim, Yoan Shin, Won Cheol Lee, Woon-Yong Park, Youngjin Park
  • Publication number: 20050282558
    Abstract: Disclosed is a wireless positioning system and method that can perform a high-precision position tracking. The wireless positioning system includes a target device that is an object of wireless positioning, beacon devices and a processing unit. The beacon devices transmits wireless signals and sense reception time points of the wireless signals transmitted from the other beacon devices and the target device and received at time points after the transmission of the wireless signal. The target device receives the wireless signal transmitted from at least one of the beacon devices, and then transmits the wireless signal to the beacon devices. The processing unit obtains the position of the target device by calculating distances between the beacon devices and the target device using information about the reception time points of the wireless signals sensed by the respective beacon devices.
    Type: Application
    Filed: December 28, 2004
    Publication date: December 22, 2005
    Inventors: Sungsoo Choi, Hui-Myung OH, Kwan-Ho Kim, Yoan Shin, Won Lee, Woon-Yong Park, Youngjin Park