Patents by Inventor Hyong-Woo Ku

Hyong-Woo Ku 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).

  • Precoding device and method in wireless communication system
    Patent number: 8199848
    Abstract: The present invention relates to a precoder and a precoding method in a multi-user multi-antenna communication System. When a transmission part (100) having a plurality of antennas transmits a plurality of signals to a receiving part (200) having an antenna, the precoder and the precoding method using the same prevents System performance degradation caused by interference signals and efficiently reduces transmission power while changing the constellation rotary angle. When the power is controlled by using the precoder, the System performance is enhanced while not damaging the structural gain of the existing multi-user multi-antenna precoder.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: June 12, 2012
    Assignees: Electoronics and Telecommunications Research Institute, Samsung Electornics Co., Ltd.
    Inventors: Dong-Seung Kwon, In-Kyeong Choi, Hyong-Woo Ku, Ji-Won Kang, Chung-Yong Lee
  • PRECODING DEVICE AND METHOD IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20100074364
    Abstract: The present invention relates to a precoder and a precoding method in a multi-user multi-antenna communication system. When a transmission part having a plurality of antennas transmits a plurality of signals to a receiving part having an antenna, the precoder and the precoding method using the same prevents system performance degradation caused by interference signals and efficiently reduces transmission power while changing the constellation rotary angle. When the power is controlled by using the precoder, the system performance is enhanced while not damaging the structural gain of the existing multi-user multi-antenna precoder.
    Type: Application
    Filed: May 15, 2007
    Publication date: March 25, 2010
    Applicants: Electronics and Telecommunications Research Institute, Samsung Electronics Co., Ltd.
    Inventors: Dong-Seung Kwon, In-Kyeong Choi, Hyong-Woo Ku, Ji-Won Kang, Chung-Yong Lee