Patents by Inventor Heung-Gyoon Ryu

Heung-Gyoon Ryu 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 reducing PAPR in an OFDM mobile communication system
    Patent number: 7319723
    Abstract: Disclosed is an apparatus and method for reducing a peak-to-average power ratio (PAPR) due to multiple subcarriers in an OFDM (Orthogonal Frequency Division Multiplexing) mobile communication system. In the OFDM mobile communication system, a transmitter pre-emphasizes an output signal of an IFFT (Inverse Fast Fourier Transform) block, and a receiver de-emphasizes a received signal before FFT (Fast Fourier Transform), thereby efficiently reducing PAPR due to multiple subcarriers.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: January 15, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-Ho Jung, Heung-Gyoon Ryu, In-Bae Kim, Byoung-Il Jin
  • Apparatus and method for reducing PAPR in an OFDM mobile communication system
    Publication number: 20030142754
    Abstract: Disclosed is an apparatus and method for reducing a peak-to-average power ratio (PAPR) due to multiple subcarriers in an OFDM (Orthogonal Frequency Division Multiplexing) mobile communication system. In the OFDM mobile communication system, a transmitter pre-emphasizes an output signal of an IFFT (Inverse Fast Fourier Transform) block, and a receiver de-emphasizes a received signal before FFT (Fast Fourier Transform), thereby efficiently reducing PAPR due to multiple subcarriers.
    Type: Application
    Filed: November 8, 2002
    Publication date: July 31, 2003
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ki-Ho Jung, Heung-Gyoon Ryu, In-Bae Kim, Byoung-il Jin